Mercurial > hg > toybox
view toys/setsid.c @ 551:2548e6e590b2
Add string to mode_t parser
added new function string_to_mode(char *m_string, mode_t base) which
parses a given string and converts it to a mode_t.
If either + or - are part of m_string the permissions are either
added or removed from base.
Currently support for permision copy is missing (e.g. g=u),
but all other flags should work.
Format for m_string: either symbolic modes or octal representation.
symbolic modes:
[auog][[+-=][rwxst]*]
examples:
string_to_mode("u=rwx,g=rw,o=r", 0);
string_to_mode("a-x", 0777);
string_to_mode("0744", 0);
author | Daniel Walter <d.walter@0x90.at> |
---|---|
date | Mon, 19 Mar 2012 19:57:56 -0500 |
parents | 878b94b32866 |
children |
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/* vi: set sw=4 ts=4: * * setsid.c - Run program in a new session ID. * * Copyright 2006 Rob Landley <rob@landley.net> * * Not in SUSv4. USE_SETSID(NEWTOY(setsid, "^<1t", TOYFLAG_USR|TOYFLAG_BIN)) config SETSID bool "setsid" default y help usage: setsid [-t] command [args...] Run process in a new session. -t Grab tty (become foreground process, receiving keyboard signals) */ #include "toys.h" void setsid_main(void) { while (setsid()<0) if (vfork()) _exit(0); if (toys.optflags) { setpgid(0,0); tcsetpgrp(0, getpid()); } xexec(toys.optargs); }