Revert "Use vfork() instead of fork() before exec()"

This reverts commit 074686b520.  Which
turned out to not work so well after all.  For instance, launching TTYs
in a background process completely blocked inetd services from even
starting up listening sockets ... proper fork seems to work fine though.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

helpers.c

@@ -446,7 +446,7 @@ int run(char *cmd)
 		return 1;
 	}
 
-	pid = vfork();
+	pid = fork();
 	if (0 == pid) {
 		int i;
 		FILE *fp;
@@ -565,7 +565,7 @@ int run_interactive(char *cmd, char *fmt, ...)
 
 pid_t run_getty(char *cmd, char *args[], int console)
 {
-	pid_t pid = vfork();
+	pid_t pid = fork();
 
 	if (!pid) {
 		int fd;
@@ -629,7 +629,7 @@ pid_t run_getty(char *cmd, char *args[], int console)
 int run_parts(char *dir, char *cmd)
 {
 	struct dirent **e;
-	volatile int i, num;
+	int i, num;
 
 	num = scandir(dir, &e, NULL, alphasort);
 	if (num < 0) {
@@ -669,7 +669,7 @@ int run_parts(char *dir, char *cmd)
 		}
 		args[j++] = NULL;
 
-		pid = vfork();
+		pid = fork();
 		if (!pid) {
 			_d("Calling %s ...", path);
 			sig_unblock();

svc.c

@@ -533,7 +533,7 @@ int svc_start(svc_t *svc)
 	sigaddset(&nmask, SIGCHLD);
 	sigprocmask(SIG_BLOCK, &nmask, &omask);
 
-	pid = vfork();
+	pid = fork();
 	sigprocmask(SIG_SETMASK, &omask, NULL);
 	if (pid == 0) {
 		int i = 0;