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ui-tag.c: do not segfault when id is missing from query-string
The purpose of the tag page is to print info about a specific tag,
but if no tag was specified on the query-string cgit used to segfault.
With this patch, cgit will fallback to the value of the 'h' parameter
instead (which is never NULL due to prepare_repo_cmd() in cgit.c).
It will now also verify that the specified tagname is in fact a valid
ref in the 'refs/tags/' namespace, i.e. specifying 'id=master' will
trigger a 'Bad tag reference' error.
Noticed-by: Eric Wong <[email protected]>
Signed-off-by: Lars Hjemli <[email protected]>
| -rw-r--r-- | ui-tag.c | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -37,7 +37,10 @@ void cgit_print_tag(char *revname) struct tag *tag; struct taginfo *info; - if (get_sha1(revname, sha1)) { + if (!revname) + revname = ctx.qry.head; + + if (get_sha1(fmt("refs/tags/%s", revname), sha1)) { cgit_print_error(fmt("Bad tag reference: %s", revname)); return; } |