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#include <ngx_config.h>
#include <ngx_core.h>
u_char *ngx_cpystrn(u_char *dst, u_char *src, size_t n)
{
if (n == 0) {
return dst;
}
for (/* void */; --n; dst++, src++) {
*dst = *src;
if (*dst == '\0') {
return dst;
}
}
*dst = '\0';
return dst;
}
ngx_int_t ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
{
if (n == 0) {
return 0;
}
n--;
for ( ;; ) {
if (s1[n] != s2[n]) {
return s1[n] - s2[n];
}
if (n == 0) {
return 0;
}
n--;
}
}
ngx_int_t ngx_atoi(u_char *line, size_t n)
{
ngx_int_t value;
if (n == 0) {
return NGX_ERROR;
}
for (value = 0; n--; line++) {
if (*line < '0' || *line > '9') {
return NGX_ERROR;
}
value = value * 10 + (*line - '0');
}
if (value < 0) {
return NGX_ERROR;
} else {
return value;
}
}
ngx_int_t ngx_hextoi(u_char *line, size_t n)
{
u_char ch;
ngx_int_t value;
if (n == 0) {
return NGX_ERROR;
}
for (value = 0; n--; line++) {
ch = *line;
if (ch >= '0' && ch <= '9') {
value = value * 16 + (ch - '0');
continue;
}
if (ch >= 'A' && ch <= 'F') {
value = value * 16 + (ch - 'A' + 10);
continue;
}
if (ch >= 'a' && ch <= 'f') {
value = value * 16 + (ch - 'a' + 10);
continue;
}
return NGX_ERROR;
}
if (value < 0) {
return NGX_ERROR;
} else {
return value;
}
}
void ngx_md5_text(u_char *text, u_char *md5)
{
int i;
static u_char hex[] = "0123456789abcdef";
for (i = 0; i < 16; i++) {
*text++ = hex[md5[i] >> 4];
*text++ = hex[md5[i] & 0xf];
}
*text = '\0';
}
#if 0
char *ngx_psprintf(ngx_pool_t *p, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
while (*fmt) {
switch(*fmt++) {
case '%':
switch(*fmt++) {
case 's':
s = va_arg(args, char *);
n += ngx_strlen(s);
break;
default:
n++;
}
default:
n++;
}
}
str = ngx_palloc(p, n);
va_start(args, fmt);
for (i = 0; i < n; i++) {
switch(*fmt++) {
case '%':
switch(*fmt++) {
case 's':
s = va_arg(args, char *);
while (str[i++] = s);
break;
default:
n++;
}
default:
str[i] = *fmt;
}
}
len += ngx_vsnprintf(errstr + len, sizeof(errstr) - len - 1, fmt, args);
va_end(args);
}
#endif
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