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// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin freebsd linux netbsd openbsd
#include <u.h>
#include <errno.h>
#include <sys/wait.h>
#define NOPLAN9DEFINES
#include <libc.h>
int
runcmd(char **argv)
{
int pid, pid1, status;
switch(pid = fork()) {
case -1:
return -1;
case 0:
execvp(argv[0], argv);
fprint(2, "exec %s: %r\n", argv[0]);
_exit(1);
}
while((pid1 = wait(&status)) < 0) {
if(errno != EINTR) {
werrstr("waitpid: %r");
return -1;
}
}
if(pid1 != pid) {
werrstr("unexpected pid in wait");
return -1;
}
if(!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
werrstr("unsuccessful exit status %#x", status);
return -1;
}
return 0;
}
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