Mercurial > hg > toybox
annotate toys/nohup.c @ 587:82ffae226c40
Convert another realpath use to xrealpath().
| author | Rob Landley <rob@landley.net> |
|---|---|
| date | Fri, 01 Jun 2012 17:59:11 -0500 |
| parents | 82d70cff7357 |
| children |
| rev | line source |
|---|---|
| 389 | 1 /* vi: set sw=4 ts=4: |
| 2 * | |
| 3 * nohup.c - run commandline with SIGHUP blocked. | |
| 4 * | |
| 5 * Copyright 2011 Rob Landley <rob@landley.net> | |
| 6 * | |
| 7 * See http://opengroup.org/onlinepubs/9699919799/utilities/nohup.html | |
| 8 | |
| 9 USE_NOHUP(NEWTOY(nohup, "<1", TOYFLAG_USR|TOYFLAG_BIN)) | |
| 10 | |
| 11 config NOHUP | |
| 12 bool "nohup" | |
| 13 default y | |
| 14 help | |
| 15 usage: nohup COMMAND [ARGS...] | |
| 16 | |
| 17 Run a command that survives the end of its terminal. | |
| 18 If stdin is a tty, redirect from /dev/null | |
| 19 If stdout is a tty, redirect to file "nohup.out" | |
| 20 */ | |
| 21 | |
| 22 #include "toys.h" | |
| 23 | |
| 24 void nohup_main(void) | |
| 25 { | |
| 26 signal(SIGHUP, SIG_IGN); | |
|
422
82d70cff7357
Very slight efficiency tweak.
Rob Landley <rob@landley.net>
parents:
389
diff
changeset
|
27 if (isatty(1)) { |
| 389 | 28 close(1); |
| 29 if (-1 == open("nohup.out", O_CREAT|O_APPEND|O_WRONLY, | |
| 30 S_IRUSR|S_IWUSR )) | |
| 31 { | |
| 32 char *temp = getenv("HOME"); | |
| 33 temp = xmsprintf("%s/%s", temp ? temp : "", "nohup.out"); | |
| 34 xcreate(temp, O_CREAT|O_APPEND|O_WRONLY, S_IRUSR|S_IWUSR); | |
| 35 } | |
| 36 } | |
|
422
82d70cff7357
Very slight efficiency tweak.
Rob Landley <rob@landley.net>
parents:
389
diff
changeset
|
37 if (isatty(0)) { |
| 389 | 38 close(0); |
| 39 open("/dev/null", O_RDONLY); | |
| 40 } | |
| 41 xexec(toys.optargs); | |
| 42 } |