Mercurial > hg > toybox
view toys/posix/nohup.c @ 1183:0752b2d58909 draft
Rename xmsprintf() to just xmprintf().
Partly because there's no supplied target string ala sprintf, and partly
because I can never remember what order the m and s go in.
author | Rob Landley <rob@landley.net> |
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date | Thu, 16 Jan 2014 09:26:50 -0600 |
parents | 144d5ba7d410 |
children | 76965793e8f4 |
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/* nohup.c - run commandline with SIGHUP blocked. * * Copyright 2011 Rob Landley <rob@landley.net> * * See http://opengroup.org/onlinepubs/9699919799/utilities/nohup.html USE_NOHUP(NEWTOY(nohup, "<1", TOYFLAG_USR|TOYFLAG_BIN)) config NOHUP bool "nohup" default y help usage: nohup COMMAND [ARGS...] Run a command that survives the end of its terminal. If stdin is a tty, redirect from /dev/null If stdout is a tty, redirect to file "nohup.out" */ #include "toys.h" void nohup_main(void) { signal(SIGHUP, SIG_IGN); if (isatty(1)) { close(1); if (-1 == open("nohup.out", O_CREAT|O_APPEND|O_WRONLY, S_IRUSR|S_IWUSR )) { char *temp = getenv("HOME"); temp = xmprintf("%s/%s", temp ? temp : "", "nohup.out"); xcreate(temp, O_CREAT|O_APPEND|O_WRONLY, S_IRUSR|S_IWUSR); } } if (isatty(0)) { close(0); open("/dev/null", O_RDONLY); } xexec_optargs(0); }