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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|TOYFLAG_ARGFAIL(125)))
config NOHUP
bool "nohup"
default y
help
usage: nohup COMMAND...
Run a command that survives the end of its terminal.
Redirect tty on stdin to /dev/null, tty on stdout to "nohup.out".
*/
#include "toys.h"
void nohup_main(void)
{
toys.exitval = 125;
xsignal(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, 0600);
free(temp);
}
}
if (isatty(0)) {
close(0);
xopen_stdio("/dev/null", O_RDONLY);
}
toys.exitval = 0;
xexec(toys.optargs);
}
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