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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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