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gallivm: Fix potential buffer overflowing in strncat. 

Signed-off-by: José Fonseca <jfonseca@vmware.com>
This commit is contained in:
Johannes Obermayr 2012-06-28 10:16:47 +02:00 committed by José Fonseca
parent 1906d2b46b
commit bf679ce1dc
1 changed files with 3 additions and 3 deletions
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6
src/gallium/auxiliary/gallivm/lp_bld_printf.c
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@ -118,16 +118,16 @@ lp_build_print_value(struct gallivm_state *gallivm,
params[1] = lp_build_const_string(gallivm, msg);
if (length == 1) {
util_strncat(format, type_fmt, sizeof format);
util_strncat(format, type_fmt, sizeof(format) - strlen(format) - 1);
params[2] = value;
} else {
for (i = 0; i < length; ++i) {
util_strncat(format, type_fmt, sizeof format);
util_strncat(format, type_fmt, sizeof(format) - strlen(format) - 1);
params[2 + i] = LLVMBuildExtractElement(builder, value, lp_build_const_int32(gallivm, i), "");
}
}
util_strncat(format, "\n", sizeof format);
util_strncat(format, "\n", sizeof(format) - strlen(format) - 1);
params[0] = lp_build_const_string(gallivm, format);
return lp_build_print_args(gallivm, 2 + length, params);