global: replace remaining use of `git__strtol32`

Replace remaining uses of the `git__strtol32` function. While these uses
are all safe as the strings were either sanitized or from a trusted
source, we want to remove `git__strtol32` altogether to avoid future
misuse.

(cherry picked from commit 2613fbb2)

src/curl_stream.c

@@ -328,7 +328,7 @@ int git_curl_stream_new(git_stream **out, const char *host, const char *port)
 		return -1;
 	}
 
-	if ((error = git__strtol32(&iport, port, NULL, 10)) < 0) {
+	if ((error = git__strntol32(&iport, port, strlen(port), NULL, 10)) < 0) {
 		git__free(st);
 		return error;
 	}

src/rebase.c

@@ -151,7 +151,7 @@ GIT_INLINE(int) rebase_readint(
 	if ((error = rebase_readfile(asc_out, state_path, filename)) < 0)
 		return error;
 
-	if (git__strtol32(&num, asc_out->ptr, &eol, 10) < 0 || num < 0 || *eol) {
+	if (git__strntol32(&num, asc_out->ptr, asc_out->size, &eol, 10) < 0 || num < 0 || *eol) {
 		giterr_set(GITERR_REBASE, "the file '%s' contains an invalid numeric value", filename);
 		return -1;
 	}

src/revparse.c

@@ -127,7 +127,8 @@ static int try_parse_numeric(int *n, const char *curly_braces_content)
 	int32_t content;
 	const char *end_ptr;
 
-	if (git__strtol32(&content, curly_braces_content, &end_ptr, 10) < 0)
+	if (git__strntol32(&content, curly_braces_content, strlen(curly_braces_content),
+			   &end_ptr, 10) < 0)
 		return -1;
 
 	if (*end_ptr != '\0')
@@ -577,7 +578,7 @@ static int extract_how_many(int *n, const char *spec, size_t *pos)
 		} while (spec[(*pos)] == kind && kind == '~');
 
 		if (git__isdigit(spec[*pos])) {
-			if (git__strtol32(&parsed, spec + *pos, &end_ptr, 10) < 0)
+			if (git__strntol32(&parsed, spec + *pos, strlen(spec + *pos), &end_ptr, 10) < 0)
 				return GIT_EINVALIDSPEC;
 
 			accumulated += (parsed - 1);

src/transports/smart_pkt.c

@@ -391,7 +391,7 @@ static int parse_len(size_t *out, const char *line, size_t linelen)
 		}
 	}
 
-	if ((error = git__strtol32(&len, num, &num_end, 16)) < 0)
+	if ((error = git__strntol32(&len, num, PKT_LEN_SIZE, &num_end, 16)) < 0)
 		return error;
 
 	if (len < 0)

src/transports/winhttp.c

@@ -764,7 +764,8 @@ static int winhttp_connect(
 	t->connection = NULL;
 
 	/* Prepare port */
-	if (git__strtol32(&port, t->connection_data.port, NULL, 10) < 0)
+	if (git__strntol32(&port, t->connection_data.port,
+			   strlen(t->connection_data.port), NULL, 10) < 0)
 		return -1;
 
 	/* Prepare host */