X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=librunas%2Frunas.c;fp=librunas%2Frunas.c;h=1fc4116255b017ddeed25a2fa5dae414931b1e84;hp=cbb70ee193469dfe35439b8735fcbdda9ebad938;hb=1576d5822eea6a740b4bb26a2709c4ace248006e;hpb=8e0af1b4e36284b519bac6b13928a7589db4da11

diff --git a/librunas/runas.c b/librunas/runas.c
index cbb70ee19..1fc411625 100644
--- a/librunas/runas.c
+++ b/librunas/runas.c
@@ -148,15 +148,19 @@ int child_run_as(void *_data)
 	 * cannot attach to this process with, e.g. ptrace, nor map this
 	 * process memory.
 	 */
-	ret = setegid(data->gid);
-	if (ret < 0) {
-		perror("setegid");
-		exit(EXIT_FAILURE);
+	if (data->gid != getegid()) {
+		ret = setegid(data->gid);
+		if (ret < 0) {
+			perror("setegid");
+			exit(EXIT_FAILURE);
+		}
 	}
-	ret = seteuid(data->uid);
-	if (ret < 0) {
-		perror("seteuid");
-		exit(EXIT_FAILURE);
+	if (data->uid != geteuid()) {
+		ret = seteuid(data->uid);
+		if (ret < 0) {
+			perror("seteuid");
+			exit(EXIT_FAILURE);
+		}
 	}
 	/*
 	 * Also set umask to 0 for mkdir executable bit.