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refname_is_safe(): use skip_prefix() 

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
maint
Michael Haggerty 2016-04-27 12:39:11 +02:00
parent 728af2832c
commit 39950fef8b
1 changed files with 5 additions and 3 deletions
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8
refs.c
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@ -120,17 +120,19 @@ int check_refname_format(const char *refname, int flags)


int refname_is_safe(const char *refname) int refname_is_safe(const char *refname)
{ {
if (starts_with(refname, "refs/")) { const char *rest;

if (skip_prefix(refname, "refs/", &rest)) {
char *buf; char *buf;
int result; int result;


buf = xmallocz(strlen(refname));
/* /*
* Does the refname try to escape refs/? * Does the refname try to escape refs/?
* For example: refs/foo/../bar is safe but refs/foo/../../bar * For example: refs/foo/../bar is safe but refs/foo/../../bar
* is not. * is not.
*/ */
result = !normalize_path_copy(buf, refname + strlen("refs/")); buf = xmallocz(strlen(rest));
result = !normalize_path_copy(buf, rest);
free(buf); free(buf);
return result; return result;
} }