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 (file)
--- 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);