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Fix segmentation fault in empty repository

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When a repository is empty, the ATOM feed link is written in the header,
but this involves formatting ctx->qry.head which is NULL in this case.
With glibc, vsnprintf formats "%s" with a NULL input as "(null)" but on
Solaris this results in a segmentation fault.  Since we don't have a
meaningful head for the atom feed in an empty repository, it's simplest
not to write out the link element at all.

Signed-off-by: John Keeping <john@metanate.com>
This commit is contained in:
John Keeping 2011-11-24 11:54:47 +00:00 committed by Lars Hjemli
parent fbd254d54e
commit 94b7c76e53
1 changed files with 1 additions and 1 deletions
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2
ui-shared.c
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@ -619,7 +619,7 @@ void cgit_print_docstart(struct cgit_context *ctx)
html_attr(ctx->cfg.favicon); html_attr(ctx->cfg.favicon);
html("'/>\n"); html("'/>\n");
} }
if (host && ctx->repo) { if (host && ctx->repo && ctx->qry.head) {
html("<link rel='alternate' title='Atom feed' href='"); html("<link rel='alternate' title='Atom feed' href='");
html(cgit_httpscheme()); html(cgit_httpscheme());
html_attr(cgit_hosturl()); html_attr(cgit_hosturl());