Mercurial > urweb
changeset 1998:cc7e5d469d1b
Protect uw_Basis_new_client_source from invalid ctx->id
We assume that FFI code may create new contextes with id left unassigned
| author | Sergey Mironov <grrwlf@gmail.com> |
|---|---|
| date | Wed, 26 Feb 2014 09:43:47 +0000 |
| parents | c93fbd139732 |
| children | a1d3fbdcc897 |
| files | src/c/urweb.c |
| diffstat | 1 files changed, 3 insertions(+), 0 deletions(-) [+] |
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--- a/src/c/urweb.c Wed Feb 26 08:21:52 2014 +0000 +++ b/src/c/urweb.c Wed Feb 26 09:43:47 2014 +0000 @@ -1586,6 +1586,9 @@ int len; size_t s_len = strlen(s); + if(ctx->id < 0) + uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context"); + uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len); sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len); ctx->script.front += len;