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1911 lines
42 KiB
1911 lines
42 KiB
/*
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* profile.c -- A simple configuration file parsing "library in a file"
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*
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* The profile library was originally written by Theodore Ts'o in 1995
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* for use in the MIT Kerberos v5 library. It has been
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* modified/enhanced/bug-fixed over time by other members of the MIT
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* Kerberos team. This version was originally taken from the Kerberos
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* v5 distribution, version 1.4.2, and radically simplified for use in
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* e2fsprogs. (Support for locking for multi-threaded operations,
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* being able to modify and update the configuration file
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* programmatically, and Mac/Windows portability have been removed.
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* It has been folded into a single C source file to make it easier to
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* fold into an application program.)
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*
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* Copyright (C) 2005, 2006 by Theodore Ts'o.
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*
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* %Begin-Header%
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* This file may be redistributed under the terms of the GNU Public
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* License.
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* %End-Header%
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*
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* Copyright (C) 1985-2005 by the Massachusetts Institute of Technology.
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*
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* All rights reserved.
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*
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* Export of this software from the United States of America may require
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* a specific license from the United States Government. It is the
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* responsibility of any person or organization contemplating export to
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* obtain such a license before exporting.
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*
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* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
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* distribute this software and its documentation for any purpose and
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* without fee is hereby granted, provided that the above copyright
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* notice appear in all copies and that both that copyright notice and
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* this permission notice appear in supporting documentation, and that
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* the name of M.I.T. not be used in advertising or publicity pertaining
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* to distribution of the software without specific, written prior
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* permission. Furthermore if you modify this software you must label
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* your software as modified software and not distribute it in such a
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* fashion that it might be confused with the original MIT software.
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* M.I.T. makes no representations about the suitability of this software
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* for any purpose. It is provided "as is" without express or implied
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* warranty.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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*/
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#include "config.h"
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <stdio.h>
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#include <time.h>
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#include <string.h>
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#include <strings.h>
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#include <errno.h>
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#include <ctype.h>
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#include <limits.h>
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#include <stddef.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#ifdef HAVE_PWD_H
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#include <pwd.h>
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#endif
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#include <et/com_err.h>
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#include "profile.h"
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#include "prof_err.h"
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#undef STAT_ONCE_PER_SECOND
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#undef HAVE_STAT
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/*
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* prof_int.h
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*/
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typedef long prf_magic_t;
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/*
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* This is the structure which stores the profile information for a
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* particular configuration file.
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*/
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struct _prf_file_t {
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prf_magic_t magic;
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char *filespec;
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#ifdef STAT_ONCE_PER_SECOND
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time_t last_stat;
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#endif
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time_t timestamp; /* time tree was last updated from file */
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int flags; /* r/w, dirty */
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int upd_serial; /* incremented when data changes */
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struct profile_node *root;
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struct _prf_file_t *next;
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};
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typedef struct _prf_file_t *prf_file_t;
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/*
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* The profile flags
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*/
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#define PROFILE_FILE_RW 0x0001
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#define PROFILE_FILE_DIRTY 0x0002
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#define PROFILE_FILE_NO_RELOAD 0x0004
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/*
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* This structure defines the high-level, user visible profile_t
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* object, which is used as a handle by users who need to query some
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* configuration file(s)
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*/
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struct _profile_t {
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prf_magic_t magic;
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prf_file_t first_file;
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};
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/*
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* Used by the profile iterator in prof_get.c
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*/
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#define PROFILE_ITER_LIST_SECTION 0x0001
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#define PROFILE_ITER_SECTIONS_ONLY 0x0002
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#define PROFILE_ITER_RELATIONS_ONLY 0x0004
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#define PROFILE_ITER_FINAL_SEEN 0x0100
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/*
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* Check if a filespec is last in a list (NULL on UNIX, invalid FSSpec on MacOS
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*/
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#define PROFILE_LAST_FILESPEC(x) (((x) == NULL) || ((x)[0] == '\0'))
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struct profile_node {
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errcode_t magic;
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char *name;
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char *value;
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int group_level;
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unsigned int final:1; /* Indicate don't search next file */
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unsigned int deleted:1;
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struct profile_node *first_child;
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struct profile_node *parent;
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struct profile_node *next, *prev;
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};
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#define CHECK_MAGIC(node) \
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if ((node)->magic != PROF_MAGIC_NODE) \
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return PROF_MAGIC_NODE;
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/* profile parser declarations */
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struct parse_state {
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int state;
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int group_level;
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int line_num;
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struct profile_node *root_section;
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struct profile_node *current_section;
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};
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static const char *default_filename = "<default>";
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static profile_syntax_err_cb_t syntax_err_cb;
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static errcode_t parse_line(char *line, struct parse_state *state);
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#ifdef DEBUG_PROGRAM
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static errcode_t profile_write_tree_file
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(struct profile_node *root, FILE *dstfile);
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static errcode_t profile_write_tree_to_buffer
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(struct profile_node *root, char **buf);
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#endif
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static void profile_free_node
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(struct profile_node *relation);
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static errcode_t profile_create_node
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(const char *name, const char *value,
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struct profile_node **ret_node);
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#ifdef DEBUG_PROGRAM
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static errcode_t profile_verify_node
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(struct profile_node *node);
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#endif
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static errcode_t profile_add_node
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(struct profile_node *section,
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const char *name, const char *value,
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struct profile_node **ret_node);
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static errcode_t profile_find_node
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(struct profile_node *section,
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const char *name, const char *value,
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int section_flag, void **state,
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struct profile_node **node);
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static errcode_t profile_node_iterator
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(void **iter_p, struct profile_node **ret_node,
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char **ret_name, char **ret_value);
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static errcode_t profile_open_file
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(const char * file, prf_file_t *ret_prof);
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static errcode_t profile_update_file
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(prf_file_t prf);
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static void profile_free_file
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(prf_file_t profile);
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static errcode_t profile_get_value(profile_t profile, const char *name,
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const char *subname, const char *subsubname,
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const char **ret_value);
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/*
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* prof_init.c --- routines that manipulate the user-visible profile_t
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* object.
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*/
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static int compstr(const void *m1, const void *m2)
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{
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const char *s1 = *((const char * const *) m1);
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const char *s2 = *((const char * const *) m2);
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return strcmp(s1, s2);
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}
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static void free_list(char **list)
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{
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char **cp;
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if (list == 0)
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return;
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for (cp = list; *cp; cp++)
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free(*cp);
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free(list);
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}
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static errcode_t get_dirlist(const char *dirname, char***ret_array)
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{
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DIR *dir;
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struct dirent *de;
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struct stat st;
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errcode_t retval;
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char *fn, *cp;
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char **array = 0, **new_array;
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int max = 0, num = 0;
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dir = opendir(dirname);
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if (!dir)
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return errno;
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while ((de = readdir(dir)) != NULL) {
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for (cp = de->d_name; *cp; cp++) {
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if (!isalnum(*cp) &&
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(*cp != '-') &&
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(*cp != '_'))
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break;
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}
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if (*cp)
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continue;
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fn = malloc(strlen(dirname) + strlen(de->d_name) + 2);
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if (!fn) {
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retval = ENOMEM;
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goto errout;
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}
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sprintf(fn, "%s/%s", dirname, de->d_name);
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if ((stat(fn, &st) < 0) || !S_ISREG(st.st_mode)) {
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free(fn);
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continue;
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}
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if (num >= max) {
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max += 10;
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new_array = realloc(array, sizeof(char *) * (max+1));
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if (!new_array) {
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retval = ENOMEM;
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free(fn);
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goto errout;
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}
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array = new_array;
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}
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array[num++] = fn;
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}
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if (array) {
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qsort(array, num, sizeof(char *), compstr);
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array[num++] = 0;
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}
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*ret_array = array;
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closedir(dir);
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return 0;
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errout:
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if (array)
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array[num] = 0;
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closedir(dir);
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free_list(array);
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return retval;
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}
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errcode_t
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profile_init(const char * const *files, profile_t *ret_profile)
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{
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const char * const *fs;
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profile_t profile;
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prf_file_t new_file, *last;
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errcode_t retval = 0;
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char **cpp, *cp, **array = 0;
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profile = malloc(sizeof(struct _profile_t));
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if (!profile)
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return ENOMEM;
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memset(profile, 0, sizeof(struct _profile_t));
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profile->magic = PROF_MAGIC_PROFILE;
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last = &profile->first_file;
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/* if the filenames list is not specified return an empty profile */
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if ( files ) {
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for (fs = files; !PROFILE_LAST_FILESPEC(*fs); fs++) {
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if (array)
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free_list(array);
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array = NULL;
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retval = get_dirlist(*fs, &array);
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if (retval == 0) {
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if (!array)
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continue;
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for (cpp = array; (cp = *cpp); cpp++) {
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retval = profile_open_file(cp, &new_file);
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if (retval == EACCES)
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continue;
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if (retval)
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goto errout;
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*last = new_file;
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last = &new_file->next;
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}
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} else if ((retval != ENOTDIR) &&
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strcmp(*fs, default_filename))
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goto errout;
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retval = profile_open_file(*fs, &new_file);
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/* if this file is missing, skip to the next */
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if (retval == ENOENT || retval == EACCES) {
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continue;
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}
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if (retval)
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goto errout;
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*last = new_file;
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last = &new_file->next;
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}
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/*
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* If all the files were not found, return the appropriate error.
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*/
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if (!profile->first_file) {
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retval = ENOENT;
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goto errout;
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}
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}
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free_list(array);
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*ret_profile = profile;
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return 0;
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errout:
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free_list(array);
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profile_release(profile);
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return retval;
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}
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void
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profile_release(profile_t profile)
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{
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prf_file_t p, next;
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if (!profile || profile->magic != PROF_MAGIC_PROFILE)
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return;
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for (p = profile->first_file; p; p = next) {
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next = p->next;
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profile_free_file(p);
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}
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profile->magic = 0;
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free(profile);
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}
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/*
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* This function sets the value of the pseudo file "<default>". If
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* the file "<default>" had previously been passed to profile_init(),
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* then def_string parameter will be parsed and used as the profile
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* information for the "<default>" file.
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*/
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errcode_t profile_set_default(profile_t profile, const char *def_string)
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{
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struct parse_state state;
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prf_file_t prf;
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errcode_t retval;
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const char *in;
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char *line, *p, *end;
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int line_size, len;
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if (!def_string || !profile || profile->magic != PROF_MAGIC_PROFILE)
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return PROF_MAGIC_PROFILE;
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for (prf = profile->first_file; prf; prf = prf->next) {
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if (strcmp(prf->filespec, default_filename) == 0)
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break;
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}
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if (!prf)
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return 0;
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if (prf->root) {
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profile_free_node(prf->root);
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prf->root = 0;
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}
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memset(&state, 0, sizeof(struct parse_state));
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retval = profile_create_node("(root)", 0, &state.root_section);
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if (retval)
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return retval;
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line = 0;
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line_size = 0;
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in = def_string;
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while (*in) {
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end = strchr(in, '\n');
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len = end ? (end - in) : (int) strlen(in);
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if (len >= line_size) {
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line_size = len+1;
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p = realloc(line, line_size);
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if (!p) {
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retval = ENOMEM;
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goto errout;
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}
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line = p;
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}
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memcpy(line, in, len);
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line[len] = 0;
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retval = parse_line(line, &state);
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if (retval) {
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errout:
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if (syntax_err_cb)
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(syntax_err_cb)(prf->filespec, retval,
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state.line_num);
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free(line);
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if (prf->root)
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profile_free_node(prf->root);
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return retval;
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}
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if (!end)
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break;
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in = end+1;
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}
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prf->root = state.root_section;
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free(line);
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return 0;
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}
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/*
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* prof_file.c ---- routines that manipulate an individual profile file.
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*/
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errcode_t profile_open_file(const char * filespec,
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prf_file_t *ret_prof)
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{
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prf_file_t prf;
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errcode_t retval;
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char *home_env = 0;
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unsigned int len;
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char *expanded_filename;
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prf = malloc(sizeof(struct _prf_file_t));
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if (!prf)
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return ENOMEM;
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memset(prf, 0, sizeof(struct _prf_file_t));
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prf->magic = PROF_MAGIC_FILE;
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len = strlen(filespec)+1;
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if (filespec[0] == '~' && filespec[1] == '/') {
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home_env = getenv("HOME");
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#ifdef HAVE_PWD_H
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if (home_env == NULL) {
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#ifdef HAVE_GETWUID_R
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struct passwd *pw, pwx;
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uid_t uid;
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char pwbuf[BUFSIZ];
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uid = getuid();
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if (!getpwuid_r(uid, &pwx, pwbuf, sizeof(pwbuf), &pw)
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&& pw != NULL && pw->pw_dir[0] != 0)
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home_env = pw->pw_dir;
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#else
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struct passwd *pw;
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pw = getpwuid(getuid());
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home_env = pw->pw_dir;
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#endif
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}
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#endif
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if (home_env)
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len += strlen(home_env);
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}
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expanded_filename = malloc(len);
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if (expanded_filename == 0) {
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profile_free_file(prf);
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return errno;
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}
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if (home_env) {
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strcpy(expanded_filename, home_env);
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strcat(expanded_filename, filespec+1);
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} else
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memcpy(expanded_filename, filespec, len);
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prf->filespec = expanded_filename;
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if (strcmp(prf->filespec, default_filename) != 0) {
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retval = profile_update_file(prf);
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if (retval) {
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profile_free_file(prf);
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return retval;
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}
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}
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*ret_prof = prf;
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return 0;
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}
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|
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errcode_t profile_update_file(prf_file_t prf)
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{
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errcode_t retval;
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#ifdef HAVE_STAT
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struct stat st;
|
|
#ifdef STAT_ONCE_PER_SECOND
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time_t now;
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#endif
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#endif
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FILE *f;
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char buf[2048];
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struct parse_state state;
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|
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if (prf->flags & PROFILE_FILE_NO_RELOAD)
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return 0;
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|
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#ifdef HAVE_STAT
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#ifdef STAT_ONCE_PER_SECOND
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now = time(0);
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if (now == prf->last_stat && prf->root != NULL) {
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return 0;
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}
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#endif
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if (stat(prf->filespec, &st)) {
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retval = errno;
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return retval;
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}
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#ifdef STAT_ONCE_PER_SECOND
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prf->last_stat = now;
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#endif
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if (st.st_mtime == prf->timestamp && prf->root != NULL) {
|
|
return 0;
|
|
}
|
|
if (prf->root) {
|
|
profile_free_node(prf->root);
|
|
prf->root = 0;
|
|
}
|
|
#else
|
|
/*
|
|
* If we don't have the stat() call, assume that our in-core
|
|
* memory image is correct. That is, we won't reread the
|
|
* profile file if it changes.
|
|
*/
|
|
if (prf->root) {
|
|
return 0;
|
|
}
|
|
#endif
|
|
memset(&state, 0, sizeof(struct parse_state));
|
|
retval = profile_create_node("(root)", 0, &state.root_section);
|
|
if (retval)
|
|
return retval;
|
|
errno = 0;
|
|
f = fopen(prf->filespec, "r");
|
|
if (f == NULL) {
|
|
retval = errno;
|
|
if (retval == 0)
|
|
retval = ENOENT;
|
|
return retval;
|
|
}
|
|
prf->upd_serial++;
|
|
while (!feof(f)) {
|
|
if (fgets(buf, sizeof(buf), f) == NULL)
|
|
break;
|
|
retval = parse_line(buf, &state);
|
|
if (retval) {
|
|
if (syntax_err_cb)
|
|
(syntax_err_cb)(prf->filespec, retval,
|
|
state.line_num);
|
|
fclose(f);
|
|
return retval;
|
|
}
|
|
}
|
|
prf->root = state.root_section;
|
|
|
|
fclose(f);
|
|
|
|
#ifdef HAVE_STAT
|
|
prf->timestamp = st.st_mtime;
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
void profile_free_file(prf_file_t prf)
|
|
{
|
|
if (prf->root)
|
|
profile_free_node(prf->root);
|
|
free(prf->filespec);
|
|
free(prf);
|
|
}
|
|
|
|
/* Begin the profile parser */
|
|
|
|
profile_syntax_err_cb_t profile_set_syntax_err_cb(profile_syntax_err_cb_t hook)
|
|
{
|
|
profile_syntax_err_cb_t old;
|
|
|
|
old = syntax_err_cb;
|
|
syntax_err_cb = hook;
|
|
return(old);
|
|
}
|
|
|
|
#define STATE_INIT_COMMENT 0
|
|
#define STATE_STD_LINE 1
|
|
#define STATE_GET_OBRACE 2
|
|
|
|
static char *skip_over_blanks(char *cp)
|
|
{
|
|
while (*cp && isspace((int) (*cp)))
|
|
cp++;
|
|
return cp;
|
|
}
|
|
|
|
static int end_or_comment(char ch)
|
|
{
|
|
return (ch == 0 || ch == '#' || ch == ';');
|
|
}
|
|
|
|
static char *skip_over_nonblanks(char *cp)
|
|
{
|
|
while (!end_or_comment(*cp) && !isspace(*cp))
|
|
cp++;
|
|
return cp;
|
|
}
|
|
|
|
static void strip_line(char *line)
|
|
{
|
|
char *p = line + strlen(line);
|
|
while (p > line && (p[-1] == '\n' || p[-1] == '\r'))
|
|
*p-- = 0;
|
|
}
|
|
|
|
static void parse_quoted_string(char *str)
|
|
{
|
|
char *to, *from;
|
|
|
|
to = from = str;
|
|
|
|
for (to = from = str; *from && *from != '"'; to++, from++) {
|
|
if (*from == '\\') {
|
|
from++;
|
|
switch (*from) {
|
|
case 'n':
|
|
*to = '\n';
|
|
break;
|
|
case 't':
|
|
*to = '\t';
|
|
break;
|
|
case 'b':
|
|
*to = '\b';
|
|
break;
|
|
default:
|
|
*to = *from;
|
|
}
|
|
continue;
|
|
}
|
|
*to = *from;
|
|
}
|
|
*to = '\0';
|
|
}
|
|
|
|
static errcode_t parse_line(char *line, struct parse_state *state)
|
|
{
|
|
char *cp, ch, *tag, *value;
|
|
char *p;
|
|
errcode_t retval;
|
|
struct profile_node *node;
|
|
int do_subsection = 0;
|
|
void *iter = 0;
|
|
|
|
state->line_num++;
|
|
if (state->state == STATE_GET_OBRACE) {
|
|
cp = skip_over_blanks(line);
|
|
if (*cp != '{')
|
|
return PROF_MISSING_OBRACE;
|
|
state->state = STATE_STD_LINE;
|
|
return 0;
|
|
}
|
|
if (state->state == STATE_INIT_COMMENT) {
|
|
if (line[0] != '[')
|
|
return 0;
|
|
state->state = STATE_STD_LINE;
|
|
}
|
|
|
|
if (*line == 0)
|
|
return 0;
|
|
strip_line(line);
|
|
cp = skip_over_blanks(line);
|
|
ch = *cp;
|
|
if (end_or_comment(ch))
|
|
return 0;
|
|
if (ch == '[') {
|
|
if (state->group_level > 0)
|
|
return PROF_SECTION_NOTOP;
|
|
cp++;
|
|
cp = skip_over_blanks(cp);
|
|
p = strchr(cp, ']');
|
|
if (p == NULL)
|
|
return PROF_SECTION_SYNTAX;
|
|
if (*cp == '"') {
|
|
cp++;
|
|
parse_quoted_string(cp);
|
|
} else {
|
|
*p-- = '\0';
|
|
while (isspace(*p) && (p > cp))
|
|
*p-- = '\0';
|
|
if (*cp == 0)
|
|
return PROF_SECTION_SYNTAX;
|
|
}
|
|
retval = profile_find_node(state->root_section, cp, 0, 1,
|
|
&iter, &state->current_section);
|
|
if (retval == PROF_NO_SECTION) {
|
|
retval = profile_add_node(state->root_section,
|
|
cp, 0,
|
|
&state->current_section);
|
|
if (retval)
|
|
return retval;
|
|
} else if (retval)
|
|
return retval;
|
|
|
|
/*
|
|
* Finish off the rest of the line.
|
|
*/
|
|
cp = p+1;
|
|
if (*cp == '*') {
|
|
state->current_section->final = 1;
|
|
cp++;
|
|
}
|
|
/*
|
|
* Spaces or comments after ']' should not be fatal
|
|
*/
|
|
cp = skip_over_blanks(cp);
|
|
if (!end_or_comment(*cp))
|
|
return PROF_SECTION_SYNTAX;
|
|
return 0;
|
|
}
|
|
if (ch == '}') {
|
|
if (state->group_level == 0)
|
|
return PROF_EXTRA_CBRACE;
|
|
if (*(cp+1) == '*')
|
|
state->current_section->final = 1;
|
|
state->current_section = state->current_section->parent;
|
|
state->group_level--;
|
|
return 0;
|
|
}
|
|
/*
|
|
* Parse the relations
|
|
*/
|
|
tag = cp;
|
|
cp = strchr(cp, '=');
|
|
if (!cp)
|
|
return PROF_RELATION_SYNTAX;
|
|
if (cp == tag)
|
|
return PROF_RELATION_SYNTAX;
|
|
*cp = '\0';
|
|
if (*tag == '"') {
|
|
tag++;
|
|
parse_quoted_string(tag);
|
|
} else {
|
|
/* Look for whitespace on left-hand side. */
|
|
p = skip_over_nonblanks(tag);
|
|
if (*p)
|
|
*p++ = 0;
|
|
p = skip_over_blanks(p);
|
|
/* If we have more non-whitespace, it's an error. */
|
|
if (*p)
|
|
return PROF_RELATION_SYNTAX;
|
|
}
|
|
|
|
cp = skip_over_blanks(cp+1);
|
|
value = cp;
|
|
ch = value[0];
|
|
if (ch == '"') {
|
|
value++;
|
|
parse_quoted_string(value);
|
|
} else if (end_or_comment(ch)) {
|
|
do_subsection++;
|
|
state->state = STATE_GET_OBRACE;
|
|
} else if (value[0] == '{') {
|
|
cp = skip_over_blanks(value+1);
|
|
ch = *cp;
|
|
if (end_or_comment(ch))
|
|
do_subsection++;
|
|
else
|
|
return PROF_RELATION_SYNTAX;
|
|
} else {
|
|
cp = skip_over_nonblanks(value);
|
|
p = skip_over_blanks(cp);
|
|
ch = *p;
|
|
*cp = 0;
|
|
if (!end_or_comment(ch))
|
|
return PROF_RELATION_SYNTAX;
|
|
}
|
|
if (do_subsection) {
|
|
p = strchr(tag, '*');
|
|
if (p)
|
|
*p = '\0';
|
|
retval = profile_add_node(state->current_section,
|
|
tag, 0, &state->current_section);
|
|
if (retval)
|
|
return retval;
|
|
if (p)
|
|
state->current_section->final = 1;
|
|
state->group_level++;
|
|
return 0;
|
|
}
|
|
p = strchr(tag, '*');
|
|
if (p)
|
|
*p = '\0';
|
|
profile_add_node(state->current_section, tag, value, &node);
|
|
if (p)
|
|
node->final = 1;
|
|
return 0;
|
|
}
|
|
|
|
#ifdef DEBUG_PROGRAM
|
|
/*
|
|
* Return TRUE if the string begins or ends with whitespace
|
|
*/
|
|
static int need_double_quotes(char *str)
|
|
{
|
|
if (!str || !*str)
|
|
return 0;
|
|
if (isspace((int) (*str)) ||isspace((int) (*(str + strlen(str) - 1))))
|
|
return 1;
|
|
if (strchr(str, '\n') || strchr(str, '\t') || strchr(str, '\b') ||
|
|
strchr(str, ' ') || strchr(str, '#') || strchr(str, ';'))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Output a string with double quotes, doing appropriate backquoting
|
|
* of characters as necessary.
|
|
*/
|
|
static void output_quoted_string(char *str, void (*cb)(const char *,void *),
|
|
void *data)
|
|
{
|
|
char ch;
|
|
char buf[2];
|
|
|
|
cb("\"", data);
|
|
if (!str) {
|
|
cb("\"", data);
|
|
return;
|
|
}
|
|
buf[1] = 0;
|
|
while ((ch = *str++)) {
|
|
switch (ch) {
|
|
case '\\':
|
|
cb("\\\\", data);
|
|
break;
|
|
case '\n':
|
|
cb("\\n", data);
|
|
break;
|
|
case '\t':
|
|
cb("\\t", data);
|
|
break;
|
|
case '\b':
|
|
cb("\\b", data);
|
|
break;
|
|
default:
|
|
/* This would be a lot faster if we scanned
|
|
forward for the next "interesting"
|
|
character. */
|
|
buf[0] = ch;
|
|
cb(buf, data);
|
|
break;
|
|
}
|
|
}
|
|
cb("\"", data);
|
|
}
|
|
|
|
#ifndef EOL
|
|
#define EOL "\n"
|
|
#endif
|
|
|
|
/* Errors should be returned, not ignored! */
|
|
static void dump_profile(struct profile_node *root, int level,
|
|
void (*cb)(const char *, void *), void *data)
|
|
{
|
|
int i;
|
|
struct profile_node *p;
|
|
void *iter;
|
|
long retval;
|
|
|
|
iter = 0;
|
|
do {
|
|
retval = profile_find_node(root, 0, 0, 0, &iter, &p);
|
|
if (retval)
|
|
break;
|
|
for (i=0; i < level; i++)
|
|
cb("\t", data);
|
|
if (need_double_quotes(p->name))
|
|
output_quoted_string(p->name, cb, data);
|
|
else
|
|
cb(p->name, data);
|
|
cb(" = ", data);
|
|
if (need_double_quotes(p->value))
|
|
output_quoted_string(p->value, cb, data);
|
|
else
|
|
cb(p->value, data);
|
|
cb(EOL, data);
|
|
} while (iter != 0);
|
|
|
|
iter = 0;
|
|
do {
|
|
retval = profile_find_node(root, 0, 0, 1, &iter, &p);
|
|
if (retval)
|
|
break;
|
|
if (level == 0) { /* [xxx] */
|
|
cb("[", data);
|
|
if (need_double_quotes(p->name))
|
|
output_quoted_string(p->name, cb, data);
|
|
else
|
|
cb(p->name, data);
|
|
cb("]", data);
|
|
cb(p->final ? "*" : "", data);
|
|
cb(EOL, data);
|
|
dump_profile(p, level+1, cb, data);
|
|
cb(EOL, data);
|
|
} else { /* xxx = { ... } */
|
|
for (i=0; i < level; i++)
|
|
cb("\t", data);
|
|
if (need_double_quotes(p->name))
|
|
output_quoted_string(p->name, cb, data);
|
|
else
|
|
cb(p->name, data);
|
|
cb(" = {", data);
|
|
cb(EOL, data);
|
|
dump_profile(p, level+1, cb, data);
|
|
for (i=0; i < level; i++)
|
|
cb("\t", data);
|
|
cb("}", data);
|
|
cb(p->final ? "*" : "", data);
|
|
cb(EOL, data);
|
|
}
|
|
} while (iter != 0);
|
|
}
|
|
|
|
static void dump_profile_to_file_cb(const char *str, void *data)
|
|
{
|
|
fputs(str, data);
|
|
}
|
|
|
|
errcode_t profile_write_tree_file(struct profile_node *root, FILE *dstfile)
|
|
{
|
|
dump_profile(root, 0, dump_profile_to_file_cb, dstfile);
|
|
return 0;
|
|
}
|
|
|
|
struct prof_buf {
|
|
char *base;
|
|
size_t cur, max;
|
|
int err;
|
|
};
|
|
|
|
static void add_data_to_buffer(struct prof_buf *b, const void *d, size_t len)
|
|
{
|
|
if (b->err)
|
|
return;
|
|
if (b->max - b->cur < len) {
|
|
size_t newsize;
|
|
char *newptr;
|
|
|
|
newsize = b->max + (b->max >> 1) + len + 1024;
|
|
newptr = realloc(b->base, newsize);
|
|
if (newptr == NULL) {
|
|
b->err = 1;
|
|
return;
|
|
}
|
|
b->base = newptr;
|
|
b->max = newsize;
|
|
}
|
|
memcpy(b->base + b->cur, d, len);
|
|
b->cur += len; /* ignore overflow */
|
|
}
|
|
|
|
static void dump_profile_to_buffer_cb(const char *str, void *data)
|
|
{
|
|
add_data_to_buffer((struct prof_buf *)data, str, strlen(str));
|
|
}
|
|
|
|
errcode_t profile_write_tree_to_buffer(struct profile_node *root,
|
|
char **buf)
|
|
{
|
|
struct prof_buf prof_buf = { 0, 0, 0, 0 };
|
|
|
|
dump_profile(root, 0, dump_profile_to_buffer_cb, &prof_buf);
|
|
if (prof_buf.err) {
|
|
*buf = NULL;
|
|
return ENOMEM;
|
|
}
|
|
add_data_to_buffer(&prof_buf, "", 1); /* append nul */
|
|
if (prof_buf.max - prof_buf.cur > (prof_buf.max >> 3)) {
|
|
char *newptr = realloc(prof_buf.base, prof_buf.cur);
|
|
if (newptr)
|
|
prof_buf.base = newptr;
|
|
}
|
|
*buf = prof_buf.base;
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* prof_tree.c --- these routines maintain the parse tree of the
|
|
* config file.
|
|
*
|
|
* All of the details of how the tree is stored is abstracted away in
|
|
* this file; all of the other profile routines build, access, and
|
|
* modify the tree via the accessor functions found in this file.
|
|
*
|
|
* Each node may represent either a relation or a section header.
|
|
*
|
|
* A section header must have its value field set to 0, and may a one
|
|
* or more child nodes, pointed to by first_child.
|
|
*
|
|
* A relation has as its value a pointer to allocated memory
|
|
* containing a string. Its first_child pointer must be null.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Free a node, and any children
|
|
*/
|
|
void profile_free_node(struct profile_node *node)
|
|
{
|
|
struct profile_node *child, *next;
|
|
|
|
if (node->magic != PROF_MAGIC_NODE)
|
|
return;
|
|
|
|
free(node->name);
|
|
free(node->value);
|
|
|
|
for (child=node->first_child; child; child = next) {
|
|
next = child->next;
|
|
profile_free_node(child);
|
|
}
|
|
node->magic = 0;
|
|
|
|
free(node);
|
|
}
|
|
|
|
#ifndef HAVE_STRDUP
|
|
#undef strdup
|
|
#define strdup MYstrdup
|
|
static char *MYstrdup (const char *s)
|
|
{
|
|
size_t sz = strlen(s) + 1;
|
|
char *p = malloc(sz);
|
|
if (p != 0)
|
|
memcpy(p, s, sz);
|
|
return p;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Create a node
|
|
*/
|
|
errcode_t profile_create_node(const char *name, const char *value,
|
|
struct profile_node **ret_node)
|
|
{
|
|
struct profile_node *new;
|
|
|
|
new = malloc(sizeof(struct profile_node));
|
|
if (!new)
|
|
return ENOMEM;
|
|
memset(new, 0, sizeof(struct profile_node));
|
|
new->name = strdup(name);
|
|
if (new->name == 0) {
|
|
profile_free_node(new);
|
|
return ENOMEM;
|
|
}
|
|
if (value) {
|
|
new->value = strdup(value);
|
|
if (new->value == 0) {
|
|
profile_free_node(new);
|
|
return ENOMEM;
|
|
}
|
|
}
|
|
new->magic = PROF_MAGIC_NODE;
|
|
|
|
*ret_node = new;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This function verifies that all of the representation invariants of
|
|
* the profile are true. If not, we have a programming bug somewhere,
|
|
* probably in this file.
|
|
*/
|
|
#ifdef DEBUG_PROGRAM
|
|
errcode_t profile_verify_node(struct profile_node *node)
|
|
{
|
|
struct profile_node *p, *last;
|
|
errcode_t retval;
|
|
|
|
CHECK_MAGIC(node);
|
|
|
|
if (node->value && node->first_child)
|
|
return PROF_SECTION_WITH_VALUE;
|
|
|
|
last = 0;
|
|
for (p = node->first_child; p; last = p, p = p->next) {
|
|
if (p->prev != last)
|
|
return PROF_BAD_LINK_LIST;
|
|
if (last && (last->next != p))
|
|
return PROF_BAD_LINK_LIST;
|
|
if (node->group_level+1 != p->group_level)
|
|
return PROF_BAD_GROUP_LVL;
|
|
if (p->parent != node)
|
|
return PROF_BAD_PARENT_PTR;
|
|
retval = profile_verify_node(p);
|
|
if (retval)
|
|
return retval;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Add a node to a particular section
|
|
*/
|
|
errcode_t profile_add_node(struct profile_node *section, const char *name,
|
|
const char *value, struct profile_node **ret_node)
|
|
{
|
|
errcode_t retval;
|
|
struct profile_node *p, *last, *new;
|
|
|
|
CHECK_MAGIC(section);
|
|
|
|
if (section->value)
|
|
return PROF_ADD_NOT_SECTION;
|
|
|
|
/*
|
|
* Find the place to insert the new node. We look for the
|
|
* place *after* the last match of the node name, since
|
|
* order matters.
|
|
*/
|
|
for (p=section->first_child, last = 0; p; last = p, p = p->next) {
|
|
int cmp;
|
|
cmp = strcmp(p->name, name);
|
|
if (cmp > 0)
|
|
break;
|
|
}
|
|
retval = profile_create_node(name, value, &new);
|
|
if (retval)
|
|
return retval;
|
|
new->group_level = section->group_level+1;
|
|
new->deleted = 0;
|
|
new->parent = section;
|
|
new->prev = last;
|
|
new->next = p;
|
|
if (p)
|
|
p->prev = new;
|
|
if (last)
|
|
last->next = new;
|
|
else
|
|
section->first_child = new;
|
|
if (ret_node)
|
|
*ret_node = new;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Iterate through the section, returning the nodes which match
|
|
* the given name. If name is NULL, then interate through all the
|
|
* nodes in the section. If section_flag is non-zero, only return the
|
|
* section which matches the name; don't return relations. If value
|
|
* is non-NULL, then only return relations which match the requested
|
|
* value. (The value argument is ignored if section_flag is non-zero.)
|
|
*
|
|
* The first time this routine is called, the state pointer must be
|
|
* null. When this profile_find_node_relation() returns, if the state
|
|
* pointer is non-NULL, then this routine should be called again.
|
|
* (This won't happen if section_flag is non-zero, obviously.)
|
|
*
|
|
*/
|
|
errcode_t profile_find_node(struct profile_node *section, const char *name,
|
|
const char *value, int section_flag, void **state,
|
|
struct profile_node **node)
|
|
{
|
|
struct profile_node *p;
|
|
|
|
CHECK_MAGIC(section);
|
|
p = *state;
|
|
if (p) {
|
|
CHECK_MAGIC(p);
|
|
} else
|
|
p = section->first_child;
|
|
|
|
for (; p; p = p->next) {
|
|
if (name && (strcmp(p->name, name)))
|
|
continue;
|
|
if (section_flag) {
|
|
if (p->value)
|
|
continue;
|
|
} else {
|
|
if (!p->value)
|
|
continue;
|
|
if (value && (strcmp(p->value, value)))
|
|
continue;
|
|
}
|
|
if (p->deleted)
|
|
continue;
|
|
/* A match! */
|
|
if (node)
|
|
*node = p;
|
|
break;
|
|
}
|
|
if (p == 0) {
|
|
*state = 0;
|
|
return section_flag ? PROF_NO_SECTION : PROF_NO_RELATION;
|
|
}
|
|
/*
|
|
* OK, we've found one match; now let's try to find another
|
|
* one. This way, if we return a non-zero state pointer,
|
|
* there's guaranteed to be another match that's returned.
|
|
*/
|
|
for (p = p->next; p; p = p->next) {
|
|
if (name && (strcmp(p->name, name)))
|
|
continue;
|
|
if (section_flag) {
|
|
if (p->value)
|
|
continue;
|
|
} else {
|
|
if (!p->value)
|
|
continue;
|
|
if (value && (strcmp(p->value, value)))
|
|
continue;
|
|
}
|
|
/* A match! */
|
|
break;
|
|
}
|
|
*state = p;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This is a general-purpose iterator for returning all nodes that
|
|
* match the specified name array.
|
|
*/
|
|
struct profile_iterator {
|
|
prf_magic_t magic;
|
|
profile_t profile;
|
|
int flags;
|
|
const char *const *names;
|
|
const char *name;
|
|
prf_file_t file;
|
|
int file_serial;
|
|
int done_idx;
|
|
struct profile_node *node;
|
|
int num;
|
|
};
|
|
|
|
errcode_t
|
|
profile_iterator_create(profile_t profile, const char *const *names, int flags,
|
|
void **ret_iter)
|
|
{
|
|
struct profile_iterator *iter;
|
|
int done_idx = 0;
|
|
|
|
if (profile == 0)
|
|
return PROF_NO_PROFILE;
|
|
if (profile->magic != PROF_MAGIC_PROFILE)
|
|
return PROF_MAGIC_PROFILE;
|
|
if (!names)
|
|
return PROF_BAD_NAMESET;
|
|
if (!(flags & PROFILE_ITER_LIST_SECTION)) {
|
|
if (!names[0])
|
|
return PROF_BAD_NAMESET;
|
|
done_idx = 1;
|
|
}
|
|
|
|
if ((iter = malloc(sizeof(struct profile_iterator))) == NULL)
|
|
return ENOMEM;
|
|
|
|
iter->magic = PROF_MAGIC_ITERATOR;
|
|
iter->profile = profile;
|
|
iter->names = names;
|
|
iter->flags = flags;
|
|
iter->file = profile->first_file;
|
|
iter->done_idx = done_idx;
|
|
iter->node = 0;
|
|
iter->num = 0;
|
|
*ret_iter = iter;
|
|
return 0;
|
|
}
|
|
|
|
void profile_iterator_free(void **iter_p)
|
|
{
|
|
struct profile_iterator *iter;
|
|
|
|
if (!iter_p)
|
|
return;
|
|
iter = *iter_p;
|
|
if (!iter || iter->magic != PROF_MAGIC_ITERATOR)
|
|
return;
|
|
free(iter);
|
|
*iter_p = 0;
|
|
}
|
|
|
|
/*
|
|
* Note: the returned character strings in ret_name and ret_value
|
|
* points to the stored character string in the parse string. Before
|
|
* this string value is returned to a calling application
|
|
* (profile_node_iterator is not an exported interface), it should be
|
|
* strdup()'ed.
|
|
*/
|
|
errcode_t profile_node_iterator(void **iter_p, struct profile_node **ret_node,
|
|
char **ret_name, char **ret_value)
|
|
{
|
|
struct profile_iterator *iter = *iter_p;
|
|
struct profile_node *section, *p;
|
|
const char *const *cpp;
|
|
errcode_t retval;
|
|
int skip_num = 0;
|
|
|
|
if (!iter || iter->magic != PROF_MAGIC_ITERATOR)
|
|
return PROF_MAGIC_ITERATOR;
|
|
if (iter->file && iter->file->magic != PROF_MAGIC_FILE)
|
|
return PROF_MAGIC_FILE;
|
|
/*
|
|
* If the file has changed, then the node pointer is invalid,
|
|
* so we'll have search the file again looking for it.
|
|
*/
|
|
if (iter->node && (iter->file &&
|
|
iter->file->upd_serial != iter->file_serial)) {
|
|
iter->flags &= ~PROFILE_ITER_FINAL_SEEN;
|
|
skip_num = iter->num;
|
|
iter->node = 0;
|
|
}
|
|
if (iter->node && iter->node->magic != PROF_MAGIC_NODE) {
|
|
return PROF_MAGIC_NODE;
|
|
}
|
|
get_new_file:
|
|
if (iter->node == 0) {
|
|
if (iter->file == NULL ||
|
|
(iter->flags & PROFILE_ITER_FINAL_SEEN)) {
|
|
profile_iterator_free(iter_p);
|
|
if (ret_node)
|
|
*ret_node = 0;
|
|
if (ret_name)
|
|
*ret_name = 0;
|
|
if (ret_value)
|
|
*ret_value =0;
|
|
return 0;
|
|
}
|
|
if ((retval = profile_update_file(iter->file))) {
|
|
if (retval == ENOENT || retval == EACCES) {
|
|
/* XXX memory leak? */
|
|
if (iter->file)
|
|
iter->file = iter->file->next;
|
|
skip_num = 0;
|
|
retval = 0;
|
|
goto get_new_file;
|
|
} else {
|
|
profile_iterator_free(iter_p);
|
|
return retval;
|
|
}
|
|
}
|
|
iter->file_serial = iter->file->upd_serial;
|
|
/*
|
|
* Find the section to list if we are a LIST_SECTION,
|
|
* or find the containing section if not.
|
|
*/
|
|
section = iter->file->root;
|
|
for (cpp = iter->names; cpp[iter->done_idx]; cpp++) {
|
|
for (p=section->first_child; p; p = p->next) {
|
|
if (!strcmp(p->name, *cpp) && !p->value)
|
|
break;
|
|
}
|
|
if (!p) {
|
|
section = 0;
|
|
break;
|
|
}
|
|
section = p;
|
|
if (p->final)
|
|
iter->flags |= PROFILE_ITER_FINAL_SEEN;
|
|
}
|
|
if (!section) {
|
|
if (iter->file)
|
|
iter->file = iter->file->next;
|
|
skip_num = 0;
|
|
goto get_new_file;
|
|
}
|
|
iter->name = *cpp;
|
|
iter->node = section->first_child;
|
|
}
|
|
/*
|
|
* OK, now we know iter->node is set up correctly. Let's do
|
|
* the search.
|
|
*/
|
|
for (p = iter->node; p; p = p->next) {
|
|
if (iter->name && strcmp(p->name, iter->name))
|
|
continue;
|
|
if ((iter->flags & PROFILE_ITER_SECTIONS_ONLY) &&
|
|
p->value)
|
|
continue;
|
|
if ((iter->flags & PROFILE_ITER_RELATIONS_ONLY) &&
|
|
!p->value)
|
|
continue;
|
|
if (skip_num > 0) {
|
|
skip_num--;
|
|
continue;
|
|
}
|
|
if (p->deleted)
|
|
continue;
|
|
break;
|
|
}
|
|
iter->num++;
|
|
if (!p) {
|
|
if (iter->file)
|
|
iter->file = iter->file->next;
|
|
iter->node = 0;
|
|
skip_num = 0;
|
|
goto get_new_file;
|
|
}
|
|
if ((iter->node = p->next) == NULL)
|
|
if (iter->file)
|
|
iter->file = iter->file->next;
|
|
if (ret_node)
|
|
*ret_node = p;
|
|
if (ret_name)
|
|
*ret_name = p->name;
|
|
if (ret_value)
|
|
*ret_value = p->value;
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* prof_get.c --- routines that expose the public interfaces for
|
|
* querying items from the profile.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* This function only gets the first value from the file; it is a
|
|
* helper function for profile_get_string, profile_get_integer, etc.
|
|
*/
|
|
errcode_t profile_get_value(profile_t profile, const char *name,
|
|
const char *subname, const char *subsubname,
|
|
const char **ret_value)
|
|
{
|
|
errcode_t retval;
|
|
void *state;
|
|
char *value;
|
|
const char *names[4];
|
|
|
|
names[0] = name;
|
|
names[1] = subname;
|
|
names[2] = subsubname;
|
|
names[3] = 0;
|
|
|
|
if ((retval = profile_iterator_create(profile, names,
|
|
PROFILE_ITER_RELATIONS_ONLY,
|
|
&state)))
|
|
return retval;
|
|
|
|
if ((retval = profile_node_iterator(&state, 0, 0, &value)))
|
|
goto cleanup;
|
|
|
|
if (value)
|
|
*ret_value = value;
|
|
else
|
|
retval = PROF_NO_RELATION;
|
|
|
|
cleanup:
|
|
profile_iterator_free(&state);
|
|
return retval;
|
|
}
|
|
|
|
errcode_t
|
|
profile_get_string(profile_t profile, const char *name, const char *subname,
|
|
const char *subsubname, const char *def_val,
|
|
char **ret_string)
|
|
{
|
|
const char *value;
|
|
errcode_t retval;
|
|
|
|
if (profile) {
|
|
retval = profile_get_value(profile, name, subname,
|
|
subsubname, &value);
|
|
if (retval == PROF_NO_SECTION || retval == PROF_NO_RELATION)
|
|
value = def_val;
|
|
else if (retval)
|
|
return retval;
|
|
} else
|
|
value = def_val;
|
|
|
|
if (value) {
|
|
*ret_string = malloc(strlen(value)+1);
|
|
if (*ret_string == 0)
|
|
return ENOMEM;
|
|
strcpy(*ret_string, value);
|
|
} else
|
|
*ret_string = 0;
|
|
return 0;
|
|
}
|
|
|
|
errcode_t
|
|
profile_get_integer(profile_t profile, const char *name, const char *subname,
|
|
const char *subsubname, int def_val, int *ret_int)
|
|
{
|
|
const char *value;
|
|
errcode_t retval;
|
|
char *end_value;
|
|
long ret_long;
|
|
|
|
*ret_int = def_val;
|
|
if (profile == 0)
|
|
return 0;
|
|
|
|
retval = profile_get_value(profile, name, subname, subsubname, &value);
|
|
if (retval == PROF_NO_SECTION || retval == PROF_NO_RELATION) {
|
|
*ret_int = def_val;
|
|
return 0;
|
|
} else if (retval)
|
|
return retval;
|
|
|
|
if (value[0] == 0)
|
|
/* Empty string is no good. */
|
|
return PROF_BAD_INTEGER;
|
|
errno = 0;
|
|
ret_long = strtol(value, &end_value, 0);
|
|
|
|
/* Overflow or underflow. */
|
|
if ((ret_long == LONG_MIN || ret_long == LONG_MAX) && errno != 0)
|
|
return PROF_BAD_INTEGER;
|
|
/* Value outside "int" range. */
|
|
if ((long) (int) ret_long != ret_long)
|
|
return PROF_BAD_INTEGER;
|
|
/* Garbage in string. */
|
|
if (end_value != value + strlen (value))
|
|
return PROF_BAD_INTEGER;
|
|
|
|
|
|
*ret_int = ret_long;
|
|
return 0;
|
|
}
|
|
|
|
errcode_t
|
|
profile_get_uint(profile_t profile, const char *name, const char *subname,
|
|
const char *subsubname, unsigned int def_val,
|
|
unsigned int *ret_int)
|
|
{
|
|
const char *value;
|
|
errcode_t retval;
|
|
char *end_value;
|
|
unsigned long ret_long;
|
|
|
|
*ret_int = def_val;
|
|
if (profile == 0)
|
|
return 0;
|
|
|
|
retval = profile_get_value(profile, name, subname, subsubname, &value);
|
|
if (retval == PROF_NO_SECTION || retval == PROF_NO_RELATION) {
|
|
*ret_int = def_val;
|
|
return 0;
|
|
} else if (retval)
|
|
return retval;
|
|
|
|
if (value[0] == 0)
|
|
/* Empty string is no good. */
|
|
return PROF_BAD_INTEGER;
|
|
errno = 0;
|
|
ret_long = strtoul(value, &end_value, 0);
|
|
|
|
/* Overflow or underflow. */
|
|
if ((ret_long == ULONG_MAX) && errno != 0)
|
|
return PROF_BAD_INTEGER;
|
|
/* Value outside "int" range. */
|
|
if ((unsigned long) (unsigned int) ret_long != ret_long)
|
|
return PROF_BAD_INTEGER;
|
|
/* Garbage in string. */
|
|
if (end_value != value + strlen (value))
|
|
return PROF_BAD_INTEGER;
|
|
|
|
*ret_int = ret_long;
|
|
return 0;
|
|
}
|
|
|
|
errcode_t
|
|
profile_get_double(profile_t profile, const char *name, const char *subname,
|
|
const char *subsubname, double def_val, double *ret_double)
|
|
{
|
|
const char *value;
|
|
errcode_t retval;
|
|
char *end_value;
|
|
double double_val;
|
|
|
|
*ret_double = def_val;
|
|
if (profile == 0)
|
|
return 0;
|
|
|
|
retval = profile_get_value(profile, name, subname, subsubname, &value);
|
|
if (retval == PROF_NO_SECTION || retval == PROF_NO_RELATION) {
|
|
*ret_double = def_val;
|
|
return 0;
|
|
} else if (retval)
|
|
return retval;
|
|
|
|
if (value[0] == 0)
|
|
/* Empty string is no good. */
|
|
return PROF_BAD_INTEGER;
|
|
errno = 0;
|
|
double_val = strtod(value, &end_value);
|
|
|
|
/* Overflow or underflow. */
|
|
if (errno != 0)
|
|
return PROF_BAD_INTEGER;
|
|
/* Garbage in string. */
|
|
if (end_value != value + strlen(value))
|
|
return PROF_BAD_INTEGER;
|
|
|
|
*ret_double = double_val;
|
|
return 0;
|
|
}
|
|
|
|
static const char *const conf_yes[] = {
|
|
"y", "yes", "true", "t", "1", "on",
|
|
0,
|
|
};
|
|
|
|
static const char *const conf_no[] = {
|
|
"n", "no", "false", "nil", "0", "off",
|
|
0,
|
|
};
|
|
|
|
static errcode_t
|
|
profile_parse_boolean(const char *s, int *ret_boolean)
|
|
{
|
|
const char *const *p;
|
|
|
|
if (ret_boolean == NULL)
|
|
return PROF_EINVAL;
|
|
|
|
for(p=conf_yes; *p; p++) {
|
|
if (!strcasecmp(*p,s)) {
|
|
*ret_boolean = 1;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
for(p=conf_no; *p; p++) {
|
|
if (!strcasecmp(*p,s)) {
|
|
*ret_boolean = 0;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return PROF_BAD_BOOLEAN;
|
|
}
|
|
|
|
errcode_t
|
|
profile_get_boolean(profile_t profile, const char *name, const char *subname,
|
|
const char *subsubname, int def_val, int *ret_boolean)
|
|
{
|
|
const char *value;
|
|
errcode_t retval;
|
|
|
|
if (profile == 0) {
|
|
*ret_boolean = def_val;
|
|
return 0;
|
|
}
|
|
|
|
retval = profile_get_value(profile, name, subname, subsubname, &value);
|
|
if (retval == PROF_NO_SECTION || retval == PROF_NO_RELATION) {
|
|
*ret_boolean = def_val;
|
|
return 0;
|
|
} else if (retval)
|
|
return retval;
|
|
|
|
return profile_parse_boolean (value, ret_boolean);
|
|
}
|
|
|
|
errcode_t
|
|
profile_iterator(void **iter_p, char **ret_name, char **ret_value)
|
|
{
|
|
char *name, *value;
|
|
errcode_t retval;
|
|
|
|
retval = profile_node_iterator(iter_p, 0, &name, &value);
|
|
if (retval)
|
|
return retval;
|
|
|
|
if (ret_name) {
|
|
if (name) {
|
|
*ret_name = malloc(strlen(name)+1);
|
|
if (!*ret_name)
|
|
return ENOMEM;
|
|
strcpy(*ret_name, name);
|
|
} else
|
|
*ret_name = 0;
|
|
}
|
|
if (ret_value) {
|
|
if (value) {
|
|
*ret_value = malloc(strlen(value)+1);
|
|
if (!*ret_value) {
|
|
if (ret_name) {
|
|
free(*ret_name);
|
|
*ret_name = 0;
|
|
}
|
|
return ENOMEM;
|
|
}
|
|
strcpy(*ret_value, value);
|
|
} else
|
|
*ret_value = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#ifdef DEBUG_PROGRAM
|
|
|
|
/*
|
|
* test_profile.c --- testing program for the profile routine
|
|
*/
|
|
|
|
#include "argv_parse.h"
|
|
#include "profile_helpers.h"
|
|
|
|
const char *program_name = "test_profile";
|
|
|
|
#define PRINT_VALUE 1
|
|
#define PRINT_VALUES 2
|
|
|
|
static void do_cmd(profile_t profile, char **argv)
|
|
{
|
|
errcode_t retval;
|
|
const char **names, *value;
|
|
char **values, **cpp;
|
|
char *cmd;
|
|
int print_status;
|
|
|
|
cmd = *(argv);
|
|
names = (const char **) argv + 1;
|
|
print_status = 0;
|
|
retval = 0;
|
|
if (cmd == 0)
|
|
return;
|
|
if (!strcmp(cmd, "query")) {
|
|
retval = profile_get_values(profile, names, &values);
|
|
print_status = PRINT_VALUES;
|
|
} else if (!strcmp(cmd, "query1")) {
|
|
const char *name = 0;
|
|
const char *subname = 0;
|
|
const char *subsubname = 0;
|
|
|
|
name = names[0];
|
|
if (name)
|
|
subname = names[1];
|
|
if (subname)
|
|
subsubname = names[2];
|
|
if (subsubname && names[3]) {
|
|
fprintf(stderr,
|
|
"Only 3 levels are allowed with query1\n");
|
|
retval = EINVAL;
|
|
} else
|
|
retval = profile_get_value(profile, name, subname,
|
|
subsubname, &value);
|
|
print_status = PRINT_VALUE;
|
|
} else if (!strcmp(cmd, "list_sections")) {
|
|
retval = profile_get_subsection_names(profile, names,
|
|
&values);
|
|
print_status = PRINT_VALUES;
|
|
} else if (!strcmp(cmd, "list_relations")) {
|
|
retval = profile_get_relation_names(profile, names,
|
|
&values);
|
|
print_status = PRINT_VALUES;
|
|
} else if (!strcmp(cmd, "dump")) {
|
|
retval = profile_write_tree_file
|
|
(profile->first_file->root, stdout);
|
|
#if 0
|
|
} else if (!strcmp(cmd, "clear")) {
|
|
retval = profile_clear_relation(profile, names);
|
|
} else if (!strcmp(cmd, "update")) {
|
|
retval = profile_update_relation(profile, names+2,
|
|
*names, *(names+1));
|
|
#endif
|
|
} else if (!strcmp(cmd, "verify")) {
|
|
retval = profile_verify_node
|
|
(profile->first_file->root);
|
|
#if 0
|
|
} else if (!strcmp(cmd, "rename_section")) {
|
|
retval = profile_rename_section(profile, names+1, *names);
|
|
} else if (!strcmp(cmd, "add")) {
|
|
value = *names;
|
|
if (strcmp(value, "NULL") == 0)
|
|
value = NULL;
|
|
retval = profile_add_relation(profile, names+1, value);
|
|
} else if (!strcmp(cmd, "flush")) {
|
|
retval = profile_flush(profile);
|
|
#endif
|
|
} else {
|
|
printf("Invalid command.\n");
|
|
}
|
|
if (retval) {
|
|
com_err(cmd, retval, "");
|
|
print_status = 0;
|
|
}
|
|
switch (print_status) {
|
|
case PRINT_VALUE:
|
|
printf("%s\n", value);
|
|
break;
|
|
case PRINT_VALUES:
|
|
for (cpp = values; *cpp; cpp++)
|
|
printf("%s\n", *cpp);
|
|
profile_free_list(values);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void do_batchmode(profile_t profile)
|
|
{
|
|
int argc, ret;
|
|
char **argv;
|
|
char buf[256];
|
|
|
|
while (!feof(stdin)) {
|
|
if (fgets(buf, sizeof(buf), stdin) == NULL)
|
|
break;
|
|
printf(">%s", buf);
|
|
ret = argv_parse(buf, &argc, &argv);
|
|
if (ret != 0) {
|
|
printf("Argv_parse returned %d!\n", ret);
|
|
continue;
|
|
}
|
|
do_cmd(profile, argv);
|
|
printf("\n");
|
|
argv_free(argv);
|
|
}
|
|
profile_release(profile);
|
|
exit(0);
|
|
|
|
}
|
|
|
|
void syntax_err_report(const char *filename, long err, int line_num)
|
|
{
|
|
fprintf(stderr, "Syntax error in %s, line number %d: %s\n",
|
|
filename, line_num, error_message(err));
|
|
exit(1);
|
|
}
|
|
|
|
const char *default_str = "[foo]\n\tbar=quux\n\tsub = {\n\t\twin = true\n}\n";
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
profile_t profile;
|
|
long retval;
|
|
char *cmd;
|
|
|
|
if (argc < 2) {
|
|
fprintf(stderr, "Usage: %s filename [cmd argset]\n", program_name);
|
|
exit(1);
|
|
}
|
|
|
|
initialize_prof_error_table();
|
|
|
|
profile_set_syntax_err_cb(syntax_err_report);
|
|
|
|
retval = profile_init_path(argv[1], &profile);
|
|
if (retval) {
|
|
com_err(program_name, retval, "while initializing profile");
|
|
exit(1);
|
|
}
|
|
retval = profile_set_default(profile, default_str);
|
|
if (retval) {
|
|
com_err(program_name, retval, "while setting default");
|
|
exit(1);
|
|
}
|
|
|
|
cmd = *(argv+2);
|
|
if (!cmd || !strcmp(cmd, "batch"))
|
|
do_batchmode(profile);
|
|
else
|
|
do_cmd(profile, argv+2);
|
|
profile_release(profile);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif
|