diff options
| -rw-r--r-- | src/exec.c | 8 |
1 files changed, 6 insertions, 2 deletions
@@ -5,8 +5,8 @@ #include <unistd.h> int main(int argc, char* argv[]) { - if (argc < 3) { - printf("Usage: %s [-p LD_PRELOAD] [-l LD_LIBRARY_PATH] <cmd> [cmd args]\n"); + if (argc < 2) { + printf("Usage: %s [-p LD_PRELOAD] [-l LD_LIBRARY_PATH] <cmd> [cmd args]\n", argv[0]); printf("\tset LD_PRELOAD to ld_preload and call execvp <cmd> [cmd args]\n"); return 1; } @@ -29,4 +29,8 @@ int main(int argc, char* argv[]) { // Run cmd. execvp(argv[i], &argv[i]); + + fprintf(stderr, "executing %s failed\n", argv[i]); + + return 1; } |