From a78550831a42db6896e598cd2a8bfb441a958fc8 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Tue, 31 Jul 2012 12:51:30 -0700 Subject: [PATCH] sane_execvp(): ignore non-directory on $PATH When you have a non-directory on your PATH, a funny thing happens: $ PATH=$PATH:/bin/sh git foo fatal: cannot exec 'git-foo': Not a directory? Worse yet, as real commands always take precedence over aliases, this behaviour interacts rather badly with them: $ PATH=$PATH:/bin/sh git -c alias.foo=show git foo -s fatal: cannot exec 'git-foo': Not a directory? This is because an ENOTDIR error from the underlying execvp(2) is reported back to the caller of our sane_execvp() wrapper as-is. Translating it to ENOENT, just like the case where we _might_ have the command in an unreadable directory, fixes it. Without an alias, we would get git: 'foo' is not a git command. See 'git --help'. and we use the 'foo' alias when it is available, of course. Signed-off-by: Junio C Hamano --- run-command.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/run-command.c b/run-command.c index 805d41f93d..f9b7db2385 100644 --- a/run-command.c +++ b/run-command.c @@ -77,6 +77,8 @@ int sane_execvp(const char *file, char * const argv[]) */ if (errno == EACCES && !strchr(file, '/')) errno = exists_in_PATH(file) ? EACCES : ENOENT; + else if (errno == ENOTDIR && !strchr(file, '/')) + errno = ENOENT; return -1; }