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cast to unsigned char before ctype calls in is_hex and is_token_char (#2469)

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This commit is contained in:
metsw24-max
2026-06-09 19:34:43 -04:00
committed by GitHub
parent 77bdf7921a
commit 018ce8e4ca
1 changed files with 6 additions and 5 deletions
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httplib.h
+6 -5
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@@ -4386,7 +4386,7 @@ inline bool set_socket_opt_time(socket_t sock, int level, int optname,
}
inline bool is_hex(char c, int &v) {
if (isdigit(c)) {
if (isdigit(static_cast<unsigned char>(c))) {
v = c - '0';
return true;
} else if ('A' <= c && c <= 'F') {
@@ -8244,7 +8244,7 @@ inline bool is_multipart_boundary_chars_valid(const std::string &boundary) {
auto valid = true;
for (size_t i = 0; i < boundary.size(); i++) {
auto c = boundary[i];
if (!std::isalnum(c) && c != '-' && c != '_') {
if (!std::isalnum(static_cast<unsigned char>(c)) && c != '-' && c != '_') {
valid = false;
break;
}
@@ -8729,9 +8729,10 @@ private:
namespace fields {
inline bool is_token_char(char c) {
return std::isalnum(c) || c == '!' || c == '#' || c == '$' || c == '%' ||
c == '&' || c == '\'' || c == '*' || c == '+' || c == '-' ||
c == '.' || c == '^' || c == '_' || c == '`' || c == '|' || c == '~';
return std::isalnum(static_cast<unsigned char>(c)) || c == '!' || c == '#' ||
c == '$' || c == '%' || c == '&' || c == '\'' || c == '*' ||
c == '+' || c == '-' || c == '.' || c == '^' || c == '_' || c == '`' ||
c == '|' || c == '~';
}
inline bool is_token(const std::string &s) {