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httpsrr/altsvc: eliminate size_t casts

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Treat alpn raw data as unsigned chars, avoids size_t and char* casts.
Add method to convert a struct Curl_str to an alpnid.

Closes #19621
This commit is contained in:
Stefan Eissing 2025-11-20 11:28:41 +01:00 • committed by Daniel Stenberg
parent 6c55dd0028
commit ad9b12d411
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GPG key ID: 5CC908FDB71E12C2
4 changed files with 21 additions and 15 deletions
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6
lib/httpsrr.c
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@ -37,7 +37,7 @@
#include "curl_memory.h"
#include "memdebug.h"
static CURLcode httpsrr_decode_alpn(const char *cp, size_t len,
static CURLcode httpsrr_decode_alpn(const uint8_t *cp, size_t len,
unsigned char *alpns)
{
/*
@ -49,7 +49,7 @@ static CURLcode httpsrr_decode_alpn(const char *cp, size_t len,
int idnum = 0;
while(len > 0) {
size_t tlen = (size_t) *cp++;
size_t tlen = *cp++;
enum alpnid id;
len--;
if(tlen > len)
@ -84,7 +84,7 @@ CURLcode Curl_httpsrr_set(struct Curl_easy *data,
CURL_TRC_DNS(data, "HTTPS RR MANDATORY left to implement");
break;
case HTTPS_RR_CODE_ALPN: /* str_list */
result = httpsrr_decode_alpn((const char *)val, vlen, hi->alpns);
result = httpsrr_decode_alpn(val, vlen, hi->alpns);
CURL_TRC_DNS(data, "HTTPS RR ALPN: %u %u %u %u",
hi->alpns[0], hi->alpns[1], hi->alpns[2], hi->alpns[3]);
break;