From: Michal Sojka <sojkam1@fel.cvut.cz>
Date: Tue, 12 Sep 2017 11:12:33 +0000 (+0200)
Subject: utrace: Fix environment initialization
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=5acaf15b4e06e971e5a80d49f47d7eec54abe8df;p=oweals%2Fprocd.git

utrace: Fix environment initialization

We want to copy the existing environment instead of the new one to
itself. Other bugs in this code are fixed in the next commit.

Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
---

diff --git a/trace/trace.c b/trace/trace.c
index fdffaba..04bf7a5 100644
--- a/trace/trace.c
+++ b/trace/trace.c
@@ -186,7 +186,7 @@ int main(int argc, char **argv, char **envp)
 			;
 
 		_envp = calloc(envc, sizeof(char *));
-		memcpy(&_envp[1], _envp, envc * sizeof(char *));
+		memcpy(&_envp[1], envp, envc * sizeof(char *));
 		*_envp = preload;
 
 		ret = execve(_argv[0], _argv, _envp);