On 08/16/2012 09:10 PM, Jakub Jelinek wrote:
+ switch (DECL_FUNCTION_CODE (callee))
+ {
+ case BUILT_IN_STRNCMP:
+ case BUILT_IN_STRNCASECMP:
+ case BUILT_IN_STRNCPY:
+ case BUILT_IN_STRNCAT:
+ strop = true;
+ /* FALLTHRU */
+ case BUILT_IN_MEMCPY:
+ case BUILT_IN_MEMMOVE:
+ case BUILT_IN_MEMCMP:
+ if (VEC_length (tree, params) < 3)
+ return;
+ src = VEC_index (tree, params, 1);
+ dest = VEC_index (tree, params, 0);
+ break;
+ case BUILT_IN_MEMSET:
+ if (VEC_length (tree, params) < 3)
+ return;
+ dest = VEC_index (tree, params, 0);
+ break;
+ case BUILT_IN_STRNDUP:
+ src = VEC_index (tree, params, 0);
+ strop = true;
+ break;
+ default:
+ break;
+ }
I think this would apply to memchr, snprintf, vsnprintf, stpncopy,
bzero, bcopy, bcmp as well. Or are some of them already lowered at this
point?
--
Florian Weimer / Red Hat Product Security Team
