diff options
| -rw-r--r-- | git.c | 19 |
1 files changed, 12 insertions, 7 deletions
@@ -283,16 +283,21 @@ int main(int argc, char **argv, char **envp) len = strlen(git_command); prepend_to_path(git_command, len); - strncat(&git_command[len], "/git-", sizeof(git_command) - len); - len += 5; - strncat(&git_command[len], argv[i], sizeof(git_command) - len); - - if (access(git_command, X_OK)) - usage(exec_path, "'%s' is not a git-command", argv[i]); + len += snprintf(git_command + len, sizeof(git_command) - len, + "/git-%s", argv[i]); + if (sizeof(git_command) <= len) { + fprintf(stderr, "git: command name given is too long (%d)\n", len); + exit(1); + } /* execve() can only ever return if it fails */ execve(git_command, &argv[i], envp); - printf("Failed to run command '%s': %s\n", git_command, strerror(errno)); + + if (errno == ENOENT) + usage(exec_path, "'%s' is not a git-command", argv[i]); + + fprintf(stderr, "Failed to run command '%s': %s\n", + git_command, strerror(errno)); return 1; } |