mirror of
https://github.com/sheumann/hush.git
synced 2024-07-04 06:29:30 +00:00
d921b2ecc0
things like xasprintf() into xfuncs.c, remove xprint_file_by_name() (it only had one user), clean up lots of #includes... General cleanup pass. What I've been doing for the last couple days. And it conflicts! I've removed httpd.c from this checkin due to somebody else touching that file. It builds for me. I have to catch a bus. (Now you know why I'm looking forward to Mercurial.)
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/* vi: set sw=4 ts=4: */
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/* nohup - invoke a utility immune to hangups.
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*
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* Busybox version based on nohup specification at
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* http://www.opengroup.org/onlinepubs/007904975/utilities/nohup.html
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*
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* Copyright 2006 Rob Landley <rob@landley.net>
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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#include "busybox.h"
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int nohup_main(int argc, char *argv[])
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{
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int temp, nullfd;
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char *nohupout = "nohup.out", *home = NULL;
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// I have no idea why the standard cares about this.
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bb_default_error_retval = 127;
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if (argc<2) bb_show_usage();
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nullfd = xopen(bb_dev_null, O_WRONLY|O_APPEND);
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// If stdin is a tty, detach from it.
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if (isatty(0)) dup2(nullfd, 0);
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// Redirect stdout to nohup.out, either in "." or in "$HOME".
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if (isatty(1)) {
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close(1);
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if (open(nohupout, O_CREAT|O_WRONLY|O_APPEND, S_IRUSR|S_IWUSR) < 0) {
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home = getenv("HOME");
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if (home) {
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home = concat_path_file(home, nohupout);
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xopen3(nohupout, O_CREAT|O_WRONLY|O_APPEND, S_IRUSR|S_IWUSR);
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}
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}
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} else dup2(nullfd, 1);
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// If we have a tty on strderr, announce filename and redirect to stdout.
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// Else redirect to /dev/null.
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temp = isatty(2);
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if (temp) fdprintf(2,"Writing to %s\n", home ? home : nohupout);
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dup2(temp ? 1 : nullfd, 2);
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close(nullfd);
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signal (SIGHUP, SIG_IGN);
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// Exec our new program.
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execvp(argv[1],argv+1);
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if (ENABLE_FEATURE_CLEAN_UP) free(home);
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bb_error_msg_and_die("exec %s",argv[1]);
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}
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