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45 lines
984 B
45 lines
984 B
/* nohup.c - run commandline with SIGHUP blocked.
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*
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* Copyright 2011 Rob Landley <rob@landley.net>
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*
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* See http://opengroup.org/onlinepubs/9699919799/utilities/nohup.html
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USE_NOHUP(NEWTOY(nohup, "<1^", TOYFLAG_USR|TOYFLAG_BIN|TOYFLAG_ARGFAIL(125)))
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config NOHUP
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bool "nohup"
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default y
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help
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usage: nohup COMMAND...
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Run a command that survives the end of its terminal.
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Redirect tty on stdin to /dev/null, tty on stdout to "nohup.out".
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*/
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#include "toys.h"
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void nohup_main(void)
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{
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toys.exitval = 125;
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xsignal(SIGHUP, SIG_IGN);
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if (isatty(1)) {
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close(1);
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if (-1 == open("nohup.out", O_CREAT|O_APPEND|O_WRONLY,
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S_IRUSR|S_IWUSR ))
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{
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char *temp = getenv("HOME");
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temp = xmprintf("%s/%s", temp ? temp : "", "nohup.out");
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xcreate(temp, O_CREAT|O_APPEND|O_WRONLY, 0600);
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free(temp);
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}
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}
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if (isatty(0)) {
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close(0);
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xopen_stdio("/dev/null", O_RDONLY);
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}
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toys.exitval = 0;
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xexec(toys.optargs);
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}
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