mirror of
https://github.com/stupidcomputer/jsfw.git
synced 2024-12-26 21:42:23 -06:00
37 lines
757 B
C
37 lines
757 B
C
#include "util.h"
|
|
|
|
#include <stdarg.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#ifndef __has_builtin
|
|
#define __has_builtin(_) 0
|
|
#endif
|
|
|
|
void panicf(const char *fmt, ...) {
|
|
va_list args;
|
|
va_start(args, fmt);
|
|
vprintf(fmt, args);
|
|
va_end(args);
|
|
exit(1);
|
|
}
|
|
|
|
uint16_t parse_port(const char *str) {
|
|
long long n = atoll(str);
|
|
if (n <= 0 || n > UINT16_MAX)
|
|
panicf("Invalid port: Expected a number in the range 1..%d, got '%s'\n", UINT16_MAX, str);
|
|
return n;
|
|
}
|
|
|
|
uint8_t parse_hex_digit(char h) {
|
|
if (h >= '0' && h <= '9')
|
|
return h - '0';
|
|
else if (h >= 'a' && h <= 'f')
|
|
return h - 'a' + 10;
|
|
else if (h >= 'A' && h <= 'F')
|
|
return h - 'A' + 10;
|
|
else
|
|
return 0;
|
|
}
|