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/*
* calmwm - the calm window manager
*
* Copyright (c) 2004 Marius Aamodt Eriksen <marius@monkey.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* $OpenBSD: util.c,v 1.17 2015/01/19 14:54:16 okan Exp $
*/
#include <sys/types.h>
#include <sys/queue.h>
#include <err.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "calmwm.h"
#define MAXARGLEN 20
void
u_spawn(char *argstr)
{
switch (fork()) {
case 0:
u_exec(argstr);
err(1, "%s", argstr);
break;
case -1:
warn("fork");
default:
break;
}
}
void
u_exec(char *argstr)
{
char *args[MAXARGLEN], **ap = args;
char **end = &args[MAXARGLEN - 1], *tmp;
while (ap < end && (*ap = strsep(&argstr, " \t")) != NULL) {
if (**ap == '\0')
continue;
ap++;
if (argstr != NULL) {
/* deal with quoted strings */
switch(argstr[0]) {
case '"':
case '\'':
if ((tmp = strchr(argstr + 1, argstr[0]))
!= NULL) {
*(tmp++) = '\0';
*(ap++) = ++argstr;
argstr = tmp;
}
break;
default:
break;
}
}
}
*ap = NULL;
(void)setsid();
(void)execvp(args[0], args);
}
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