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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 = xmsprintf("%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(toys.optargs);
}
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