From d130973f349d70571e517c362d480ebcfab936bc Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Tue, 27 May 2003 20:45:59 +0000
Subject: [PATCH] Put this back the way it was.  I misunderstood what vodz was
 doing.

---
 libbb/run_parts.c | 40 +++++++++++++++++-----------------------
 1 file changed, 17 insertions(+), 23 deletions(-)

diff --git a/libbb/run_parts.c b/libbb/run_parts.c
index 1cd13f218..58645660b 100644
--- a/libbb/run_parts.c
+++ b/libbb/run_parts.c
@@ -83,37 +83,31 @@ extern int run_parts(char **args, const unsigned char test_mode)
 			if (test_mode & 1) {
 				puts(filename);
 			} else {
-				pid_t pid, wpid;
+				/* exec_errno is common vfork variable */
+				volatile int exec_errno = 0;
 				int result;
+				int pid;
 
 				if ((pid = vfork()) < 0) {
 					bb_perror_msg_and_die("failed to fork");
-				} else if (pid==0) {
+				} else if (!pid) {
+					args[0] = filename;
 					execv(filename, args);
+					exec_errno = errno;
 					_exit(1);
 				}
 
-				/* Wait for the child process to exit.  Since we use vfork
-				 * we shouldn't actually have to do any waiting... */
-				wpid = wait(&result);
-				while (wpid > 0) {
-					/* Find out who died, make sure it is the right process */
-					if (pid == wpid) {
-						if (WIFEXITED(result) && WEXITSTATUS(result)) {
-							bb_perror_msg("%s exited with return code %d", filename, WEXITSTATUS(result));
-							exitstatus = 1;
-						} else if (WIFSIGNALED(result) && WIFSIGNALED(result)) {
-							int sig;
-							sig = WTERMSIG(result);
-							bb_perror_msg("%s exited because of uncaught signal %d (%s)", 
-									filename, sig, u_signal_names(0, &sig, 1));
-							exitstatus = 1;
-						}
-						break;
-					} else {
-						/* Just in case some _other_ random child process exits */
-						wpid = wait(&result);
-					}
+				waitpid(pid, &result, 0);
+				if(exec_errno) {
+					errno = exec_errno;
+					bb_perror_msg_and_die("failed to exec %s", filename);
+				}
+				if (WIFEXITED(result) && WEXITSTATUS(result)) {
+					bb_perror_msg("%s exited with return code %d", filename, WEXITSTATUS(result));
+					exitstatus = 1;
+				} else if (WIFSIGNALED(result)) {
+					bb_perror_msg("%s exited because of uncaught signal %d", filename, WTERMSIG(result));
+					exitstatus = 1;
 				}
 			}
 		} 
-- 
2.25.1