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ci: fix clang sanitize errors for json_decode

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This commit is contained in:
Delyan Angelov
2022-04-05 17:51:26 +03:00
parent 11ccf06441
commit 2ecfd1b351
3 changed files with 27 additions and 19 deletions
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40
vlib/v/gen/c/json.v
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@@ -73,27 +73,29 @@ $dec_fn_dec {
if (!root) {
const char *error_ptr = cJSON_GetErrorPtr();
if (error_ptr != NULL) {
char *prevline_ptr = (char*)error_ptr;
const size_t error_pos = cJSON_GetErrorPos();
int maxcontext_chars = 30;
int backlines = 1;
int backchars = maxcontext_chars-7;
while(backchars--){
char prevc = *(prevline_ptr - 1);
if(0==prevc){
break;
}
if(10==prevc && !backlines--){
break;
}
prevline_ptr--;
if(123==prevc) {
break; // stop at `{` too
}
byte *buf = vcalloc_noscan(maxcontext_chars + 10);
if(error_pos > 0) {
int backlines = 1;
int backchars = error_pos < maxcontext_chars-7 ? (int)error_pos : maxcontext_chars-7 ;
char *prevline_ptr = (char*)error_ptr;
while(backchars--){
char prevc = *(prevline_ptr - 1);
if(0==prevc){
break;
}
if(10==prevc && !backlines--){
break;
}
prevline_ptr--;
if(123==prevc) {
break; // stop at `{` too
}
}
int maxchars = vstrlen_char(prevline_ptr);
vmemcpy(buf, prevline_ptr, (maxchars < maxcontext_chars ? maxchars : maxcontext_chars));
}
byte *buf = _v_malloc(maxcontext_chars + 10);
vmemset(buf, 0, maxcontext_chars+10);
vmemcpy(buf, prevline_ptr, maxcontext_chars);
// for(int x=-10;x<10;x++){ char *xx = prevline_ptr+x; fprintf(stderr, "2 prevline_ptr + %d: %p | %c | %d \\n", x, xx, (int)(*(xx)), (int)(*(xx))); } fprintf(stderr, "--------\\n");
return (Option_$styp){.state = 2,.err = _v_error(tos2(buf)),.data = {0}};
}
}