From a0e0018c9a7ef5ce7f6d2c3ae16aecbbd16a8f67 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 4 May 2024 16:18:53 +0200
Subject: Adding upstream version 6.1.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 lib/exec.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 lib/exec.c

(limited to 'lib/exec.c')

diff --git a/lib/exec.c b/lib/exec.c
new file mode 100644
index 0000000..9b1c8f4
--- /dev/null
+++ b/lib/exec.c
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <sys/wait.h>
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include "utils.h"
+#include "namespace.h"
+
+int cmd_exec(const char *cmd, char **argv, bool do_fork,
+	     int (*setup)(void *), void *arg)
+{
+	fflush(stdout);
+	if (do_fork) {
+		int status;
+		pid_t pid;
+
+		pid = fork();
+		if (pid < 0) {
+			perror("fork");
+			exit(1);
+		}
+
+		if (pid != 0) {
+			/* Parent  */
+			if (waitpid(pid, &status, 0) < 0) {
+				perror("waitpid");
+				exit(1);
+			}
+
+			if (WIFEXITED(status)) {
+				return WEXITSTATUS(status);
+			}
+
+			exit(1);
+		}
+	}
+
+	if (setup && setup(arg))
+		return -1;
+
+	if (execvp(cmd, argv)  < 0)
+		fprintf(stderr, "exec of \"%s\" failed: %s\n",
+				cmd, strerror(errno));
+	_exit(1);
+}
-- 
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