From: Michael Tremer <michael.tremer@ipfire.org>
Date: Fri, 12 Aug 2022 10:05:19 +0000 (+0000)
Subject: command: Add function to show own file ownership
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0df85f90c71f51c4669ecf595f3ebb6daa2c2f66;p=people%2Fstevee%2Fpakfire.git

command: Add function to show own file ownership

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/tests/stub/command.c b/tests/stub/command.c
index 9c9dc27f..3fa7802d 100644
--- a/tests/stub/command.c
+++ b/tests/stub/command.c
@@ -18,10 +18,12 @@
 #                                                                             #
 #############################################################################*/
 
+#include <linux/limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/resource.h>
+#include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <time.h>
@@ -261,6 +263,45 @@ static int _sleep(int argc, char* argv[]) {
 	return EXIT_SUCCESS;
 }
 
+static int stat_self(struct stat* st) {
+	char path[PATH_MAX];
+	int r;
+
+	// Find path to ourselves
+	r = readlink("/proc/self/exe", path, sizeof(path));
+	if (r < 0) {
+		fprintf(stderr, "readlink() failed: %m\n");
+		return 1;
+	}
+
+	// stat()
+	r = stat(path, st);
+	if (r < 0) {
+		fprintf(stderr, "stat() on %s failed: %m\n", path);
+		return 1;
+	}
+
+	return 0;
+}
+
+/*
+	Returns who owns this binary
+*/
+static int stat_ownership(int argc, char* argv[]) {
+	struct stat st;
+	int r;
+
+	// Stat ourselves
+	r = stat_self(&st);
+	if (r)
+		return r;
+
+	// Print result
+	printf("uid=%d gid=%d\n", st.st_uid, st.st_gid);
+
+	return 0;
+}
+
 int main(int argc, char* argv[]) {
 	if (argc < 2) {
 		fprintf(stderr, "No command given\n");
@@ -313,6 +354,10 @@ int main(int argc, char* argv[]) {
 	else if (strcmp(command, "sleep") == 0)
 		callback = _sleep;
 
+	// Stat ownership
+	else if (strcmp(command, "stat-ownership") == 0)
+		callback = stat_ownership;
+
 	// Exit if no callback has been set
 	if (!callback) {
 		fprintf(stderr, "Unknown command: %s\n", command);