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fixed a buffer management bug in json.c

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hyung-hwan 2019-06-11 15:07:29 +00:00
parent 02042b5e47
commit 3af707bc07
1 changed files with 2 additions and 2 deletions
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4
lib/json.c
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@ -165,11 +165,11 @@ static int add_char_to_token (hcl_json_t* json, hcl_ooch_t ch)
hcl_ooch_t* tmp;
hcl_oow_t newcapa;
newcapa = HCL_ALIGN_POW2(json->tok.len + 1, HCL_JSON_TOKEN_NAME_ALIGN);
newcapa = HCL_ALIGN_POW2(json->tok.len + 2, HCL_JSON_TOKEN_NAME_ALIGN); /* +2 here because of -1 when setting newcapa */
tmp = (hcl_ooch_t*)hcl_json_reallocmem(json, json->tok.ptr, newcapa * HCL_SIZEOF(*tmp));
if (!tmp) return -1;
json->tok_capa = newcapa;
json->tok_capa = newcapa - 1; /* -1 to secure space for terminating null */
json->tok.ptr = tmp;
}