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62 lines
1.6 KiB
62 lines
1.6 KiB
4 months ago
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/* groupdel.c - delete a group
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*
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* Copyright 2013 Ashwini Kumar <ak.ashwini1981@gmail.com>
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* Copyright 2013 Kyungwan Han <asura321@gmail.com>
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*
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* See http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/groupdel.html
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USE_GROUPDEL(NEWTOY(groupdel, "<1>2", TOYFLAG_NEEDROOT|TOYFLAG_SBIN))
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USE_GROUPDEL(OLDTOY(delgroup, groupdel, TOYFLAG_NEEDROOT|TOYFLAG_SBIN))
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config GROUPDEL
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bool "groupdel"
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default n
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help
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usage: groupdel [USER] GROUP
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Delete a group or remove a user from a group
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*/
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#define FOR_groupdel
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#include "toys.h"
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void groupdel_main(void)
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{
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struct group *grp = xgetgrnam(toys.optargs[toys.optc-1]);
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char *entry = 0;
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// delete user from group
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if (toys.optc == 2) {
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int i, len = 0, found = 0;
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char *s;
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xgetpwnam(*toys.optargs);
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if (grp->gr_mem) for (i = 0; grp->gr_mem[i]; i++) {
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if (!found && !strcmp(*toys.optargs, grp->gr_mem[i])) found++;
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else len += strlen(grp->gr_mem[i]) + 1;
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}
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if (!found)
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error_exit("user '%s' not in group '%s'", *toys.optargs, toys.optargs[1]);
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entry = s = xmalloc(len);
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for (i = 0; grp->gr_mem[i]; ) {
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if (i) *(s++) = ',';
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s = stpcpy(s, grp->gr_mem[i]);
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}
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// delete group
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} else {
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struct passwd *pw;
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for (endpwent(); (pw = getpwent());)
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if (pw->pw_gid == grp->gr_gid) break;
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if (pw) error_exit("can't remove primary group of user '%s'", pw->pw_name);
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if (CFG_TOYBOX_FREE) endpwent();
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}
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update_password("/etc/group", grp->gr_name, entry);
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update_password("/etc/gshadow", grp->gr_name, entry);
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if (CFG_TOYBOX_FREE) free(entry);
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}
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