init: handle empty "template" parameter

If a user passes "--template=", then our template parameter
is blank. Unfortunately, copy_templates() assumes it has at
least one character, and does all sorts of bad things like
reading from template[-1] and then proceeding to link all of
'/' into the .git directory.

This patch just checks for that condition in copy_templates
and aborts. As a side effect, this means that --template=
now has the meaning "don't copy any templates."

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King
2008-07-28 02:02:04 -04:00
committed by Junio C Hamano
parent 8e1db3871c
commit 172035f044
2 changed files with 28 additions and 0 deletions

View File

@ -117,6 +117,8 @@ static void copy_templates(const char *template_dir)
template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT);
if (!template_dir)
template_dir = system_path(DEFAULT_GIT_TEMPLATE_DIR);
if (!template_dir[0])
return;
strcpy(template_path, template_dir);
template_len = strlen(template_path);
if (template_path[template_len-1] != '/') {