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lib: use Curl_str_number() for parsing decimal numbers

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Instead of strtoul() and strtol() calls.

Easier API with better integer overflow detection and built-in max check
that now comes automatic everywhere this is used.

Closes #16319
This commit is contained in:
Daniel Stenberg 2025-02-13 08:45:43 +01:00
parent 130b6891c8
commit b696fc129b
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GPG key ID: 5CC908FDB71E12C2
16 changed files with 180 additions and 202 deletions
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17
lib/ftplistparser.c
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@ -50,9 +50,12 @@
#include "ftp.h"
#include "ftplistparser.h"
#include "curl_fnmatch.h"
#include "curl_memory.h"
#include "multiif.h"
/* The last #include file should be: */
#include "strparse.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
typedef enum {
@ -543,13 +546,13 @@ size_t Curl_ftp_parselist(char *buffer, size_t size, size_t nmemb,
case PL_UNIX_HLINKS_NUMBER:
parser->item_length ++;
if(c == ' ') {
char *p;
long int hlinks;
const char *p = &mem[parser->item_offset];
size_t hlinks;
mem[parser->item_offset + parser->item_length - 1] = 0;
hlinks = strtol(mem + parser->item_offset, &p, 10);
if(p[0] == '\0' && hlinks != LONG_MAX && hlinks != LONG_MIN) {
if(!Curl_str_number(&p, &hlinks, LONG_MAX)) {
parser->file_data->info.flags |= CURLFINFOFLAG_KNOWN_HLINKCOUNT;
parser->file_data->info.hardlinks = hlinks;
parser->file_data->info.hardlinks = (long)hlinks;
}
parser->item_length = 0;
parser->item_offset = 0;