GopherProxy

	spawn.c - noice - small file browser (mirror / fork from 2f30.org)
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	---
	spawn.c (919B)
	---
	1 /* See LICENSE file for copyright and license details. */
	2 #include <sys/types.h>
	3 #include <sys/wait.h>
	4
	5 #include <errno.h>
	6 #include <stdarg.h>
	7 #include <stdlib.h>
	8 #include <unistd.h>
	9
	10 #include "util.h"
	11
	12 int
	13 spawnvp(char dir, char file, char *argv[])
	14 {
	15 pid_t pid;
	16 int status, r;
	17
	18 pid = fork();
	19 switch (pid) {
	20 case -1:
	21 return -1;
	22 case 0:
	23 if (dir != NULL && chdir(dir) == -1)
	24 exit(1);
	25 execvp(file, argv);
	26 _exit(1);
	27 default:
	28 while ((r = waitpid(pid, &status, 0)) == -1 && errno == …
	29 continue;
	30 if (r == -1)
	31 return -1;
	32 if (WIFEXITED(status) && WEXITSTATUS(status) != 0)
	33 return -1;
	34 }
	35 return 0;
	36 }
	37
	38 int
	39 spawnlp(char dir, char file, char *argv0, ...)
	40 {
	41 char *argv[NR_ARGS];
	42 va_list ap;
	43 int argc;
	44
	45 va_start(ap, argv0);
	46 argv[0] = argv0;
	47 for (argc = 1; (argv[argc] = va_arg(ap, char )) != (void )0; a…
	48 ;
	49 argv[argc] = NULL;
	50 va_end(ap);
	51 return spawnvp(dir, file, argv);
	52 }