2002-08-07 00:39:45 +08:00
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2004-09-28 16:34:51 +08:00
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/*
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2004-09-30 00:00:49 +08:00
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* Copyright (C) Igor Sysoev
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2004-09-28 16:34:51 +08:00
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*/
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2002-08-07 00:39:45 +08:00
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#include <ngx_config.h>
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2003-03-21 00:09:44 +08:00
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#include <ngx_core.h>
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2002-08-07 00:39:45 +08:00
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2004-03-16 15:10:12 +08:00
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u_char *ngx_cpystrn(u_char *dst, u_char *src, size_t n)
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2002-08-07 00:39:45 +08:00
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{
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2003-05-07 01:03:16 +08:00
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if (n == 0) {
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2002-08-07 00:39:45 +08:00
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return dst;
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2003-05-07 01:03:16 +08:00
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}
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2002-08-07 00:39:45 +08:00
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for (/* void */; --n; dst++, src++) {
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*dst = *src;
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2003-05-07 01:03:16 +08:00
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if (*dst == '\0') {
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2002-08-07 00:39:45 +08:00
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return dst;
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2003-05-07 01:03:16 +08:00
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}
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2002-08-07 00:39:45 +08:00
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}
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*dst = '\0';
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return dst;
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}
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2003-03-21 00:09:44 +08:00
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2004-10-21 23:34:38 +08:00
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/*
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* supported formats:
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* %[0][width]O off_t
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* %[0][width]T time_t
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* %[0][width]S ssize_t
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* %[0][width]uS size_t
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* %[0][width]uxS size_t in hex
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* %[0][width]l long
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* %[0][width]d int
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* %[0][width]i ngx_int_t
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* %[0][width]ui ngx_uint_t
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* %[0][width]uxi ngx_uint_t in hex
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* %s null-terminated string
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* %% %
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*
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*/
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u_char *ngx_sprintf(u_char *buf, char *fmt, ...)
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{
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u_char *p, c, temp[NGX_MAX_INT_LEN];
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int d;
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long l;
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off_t offset;
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size_t size, len;
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ssize_t ssize;
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time_t sec;
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va_list arg;
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ngx_int_t i;
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ngx_uint_t ui, zero, width, sign, hexadecimal;
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static u_char hex[] = "0123456789abcdef";
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va_start(arg, fmt);
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while (*fmt) {
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if (*fmt == '%') {
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zero = (*++fmt == '0') ? 1 : 0;
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width = 0;
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sign = 1;
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hexadecimal = 0;
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p = temp + NGX_MAX_INT_LEN;
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while (*fmt >= '0' && *fmt <= '9') {
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width = width * 10 + *fmt++ - '0';
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}
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for ( ;; ) {
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switch (*fmt) {
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case 'u':
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sign = 0;
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fmt++;
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continue;
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case 'x':
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hexadecimal = 1;
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fmt++;
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continue;
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default:
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break;
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}
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break;
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}
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switch (*fmt) {
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case 'O':
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offset = va_arg(arg, off_t);
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if (offset < 0) {
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*buf++ = '-';
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offset = -offset;
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}
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do {
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*--p = (u_char) (offset % 10 + '0');
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} while (offset /= 10);
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break;
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case 'T':
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sec = va_arg(arg, time_t);
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if (sec < 0) {
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*buf++ = '-';
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sec = -sec;
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}
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do {
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*--p = (u_char) (sec % 10 + '0');
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} while (sec /= 10);
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break;
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case 'S':
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if (sign) {
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ssize = va_arg(arg, ssize_t);
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if (ssize < 0) {
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*buf++ = '-';
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size = (size_t) -ssize;
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} else {
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size = (size_t) ssize;
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}
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} else {
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size = va_arg(arg, size_t);
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}
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if (hexadecimal) {
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do {
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*--p = hex[size & 0xf];
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} while (size >>= 4);
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} else {
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do {
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*--p = (u_char) (size % 10 + '0');
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} while (size /= 10);
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}
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break;
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case 'l':
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l = va_arg(arg, long);
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if (l < 0) {
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*buf++ = '-';
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l = -l;
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}
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do {
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*--p = (u_char) (l % 10 + '0');
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} while (l /= 10);
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break;
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case 'd':
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d = va_arg(arg, int);
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if (d < 0) {
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*buf++ = '-';
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d = -d;
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}
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do {
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*--p = (u_char) (d % 10 + '0');
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} while (d /= 10);
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break;
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case 'i':
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if (sign) {
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i = va_arg(arg, ngx_int_t);
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if (i < 0) {
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*buf++ = '-';
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ui = (ngx_uint_t) -i;
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} else {
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ui = (ngx_uint_t) i;
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}
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} else {
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ui = va_arg(arg, ngx_uint_t);
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}
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if (hexadecimal) {
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do {
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*--p = hex[ui & 0xf];
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} while (ui >>= 4);
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} else {
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do {
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*--p = (u_char) (ui % 10 + '0');
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} while (ui /= 10);
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}
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break;
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case 's':
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p = va_arg(arg, u_char *);
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while (*p) {
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*buf++ = *p++;
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}
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fmt++;
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continue;
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case '%':
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*buf++ = '%';
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fmt++;
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continue;
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default:
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*buf++ = *fmt++;
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continue;
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}
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len = (temp + NGX_MAX_INT_LEN) - p;
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c = (u_char) (zero ? '0' : ' ');
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while (len++ < width) {
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*buf++ = c;
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}
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buf = ngx_cpymem(buf, p, ((temp + NGX_MAX_INT_LEN) - p));
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fmt++;
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} else {
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*buf++ = *fmt++;
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}
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}
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va_end(arg);
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*buf = '\0';
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return buf;
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}
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2004-03-16 15:10:12 +08:00
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ngx_int_t ngx_rstrncmp(u_char *s1, u_char *s2, size_t n)
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2003-05-07 01:03:16 +08:00
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{
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if (n == 0) {
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return 0;
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}
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n--;
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for ( ;; ) {
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if (s1[n] != s2[n]) {
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2004-03-16 15:10:12 +08:00
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return s1[n] - s2[n];
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2003-05-07 01:03:16 +08:00
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}
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if (n == 0) {
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return 0;
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}
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n--;
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}
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}
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2004-10-21 23:34:38 +08:00
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ngx_int_t ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n)
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{
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u_char c1, c2;
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if (n == 0) {
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return 0;
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}
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n--;
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for ( ;; ) {
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c1 = s1[n];
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if (c1 >= 'a' && c1 <= 'z') {
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c1 -= 'a' - 'A';
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}
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c2 = s2[n];
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if (c2 >= 'a' && c2 <= 'z') {
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c2 -= 'a' - 'A';
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}
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if (c1 != c2) {
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return c1 - c2;
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}
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if (n == 0) {
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return 0;
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}
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n--;
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}
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}
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2004-03-16 15:10:12 +08:00
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ngx_int_t ngx_atoi(u_char *line, size_t n)
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2003-03-21 00:09:44 +08:00
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{
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2004-03-16 15:10:12 +08:00
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ngx_int_t value;
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2003-03-21 00:09:44 +08:00
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2003-05-07 01:03:16 +08:00
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if (n == 0) {
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return NGX_ERROR;
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}
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2003-03-21 00:09:44 +08:00
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for (value = 0; n--; line++) {
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2003-04-28 23:06:39 +08:00
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if (*line < '0' || *line > '9') {
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return NGX_ERROR;
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}
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2003-03-21 00:09:44 +08:00
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2003-04-28 23:06:39 +08:00
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value = value * 10 + (*line - '0');
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2003-03-21 00:09:44 +08:00
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}
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2003-04-28 23:06:39 +08:00
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if (value < 0) {
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return NGX_ERROR;
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2004-05-21 01:33:52 +08:00
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} else {
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return value;
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}
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}
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ngx_int_t ngx_hextoi(u_char *line, size_t n)
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{
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u_char ch;
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ngx_int_t value;
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if (n == 0) {
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return NGX_ERROR;
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}
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for (value = 0; n--; line++) {
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ch = *line;
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if (ch >= '0' && ch <= '9') {
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value = value * 16 + (ch - '0');
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continue;
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}
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if (ch >= 'A' && ch <= 'F') {
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2004-05-22 00:12:13 +08:00
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value = value * 16 + (ch - 'A' + 10);
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2004-05-21 01:33:52 +08:00
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continue;
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}
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if (ch >= 'a' && ch <= 'f') {
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2004-05-22 00:12:13 +08:00
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value = value * 16 + (ch - 'a' + 10);
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2004-05-21 01:33:52 +08:00
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continue;
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}
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return NGX_ERROR;
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}
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if (value < 0) {
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return NGX_ERROR;
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2003-04-28 23:06:39 +08:00
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} else {
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return value;
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}
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2003-03-21 00:09:44 +08:00
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}
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2004-03-16 15:10:12 +08:00
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void ngx_md5_text(u_char *text, u_char *md5)
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2003-11-05 06:12:39 +08:00
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{
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2004-03-16 15:10:12 +08:00
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int i;
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static u_char hex[] = "0123456789abcdef";
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2003-11-06 01:03:41 +08:00
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2003-11-10 04:03:38 +08:00
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for (i = 0; i < 16; i++) {
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*text++ = hex[md5[i] >> 4];
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*text++ = hex[md5[i] & 0xf];
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}
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*text = '\0';
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2003-11-05 06:12:39 +08:00
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}
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2004-10-11 23:07:03 +08:00
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void ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src)
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2004-07-31 01:05:14 +08:00
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{
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u_char *d, *s;
|
2004-08-27 23:40:59 +08:00
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|
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size_t len;
|
2004-07-31 01:05:14 +08:00
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|
|
static u_char basis64[] =
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|
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
|
|
|
2004-08-27 23:40:59 +08:00
|
|
|
len = src->len;
|
2004-08-29 11:55:41 +08:00
|
|
|
s = src->data;
|
|
|
|
d = dst->data;
|
2004-07-31 01:05:14 +08:00
|
|
|
|
2004-08-27 23:40:59 +08:00
|
|
|
while (len > 2) {
|
|
|
|
*d++ = basis64[(s[0] >> 2) & 0x3f];
|
|
|
|
*d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
|
*d++ = basis64[((s[1] & 0x0f) << 2) | (s[2] >> 6)];
|
|
|
|
*d++ = basis64[s[2] & 0x3f];
|
|
|
|
|
|
|
|
s += 3;
|
|
|
|
len -= 3;
|
2004-07-31 01:05:14 +08:00
|
|
|
}
|
|
|
|
|
2004-08-27 23:40:59 +08:00
|
|
|
if (len) {
|
|
|
|
*d++ = basis64[(s[0] >> 2) & 0x3f];
|
2004-07-31 01:05:14 +08:00
|
|
|
|
2004-08-27 23:40:59 +08:00
|
|
|
if (len == 1) {
|
|
|
|
*d++ = basis64[(s[0] & 3) << 4];
|
2004-07-31 01:05:14 +08:00
|
|
|
*d++ = '=';
|
|
|
|
|
|
|
|
} else {
|
2004-08-27 23:40:59 +08:00
|
|
|
*d++ = basis64[((s[0] & 3) << 4) | (s[1] >> 4)];
|
|
|
|
*d++ = basis64[(s[1] & 0x0f) << 2];
|
2004-07-31 01:05:14 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
*d++ = '=';
|
|
|
|
}
|
|
|
|
|
|
|
|
dst->len = d - dst->data;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2004-10-11 23:07:03 +08:00
|
|
|
ngx_int_t ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src)
|
2004-07-31 01:05:14 +08:00
|
|
|
{
|
2004-08-27 23:40:59 +08:00
|
|
|
size_t len;
|
|
|
|
u_char *d, *s;
|
|
|
|
static u_char basis64[] =
|
|
|
|
{ 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
|
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
|
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 62, 77, 77, 77, 63,
|
|
|
|
52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 77, 77, 77, 77, 77, 77,
|
|
|
|
77, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
|
|
|
|
15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 77, 77, 77, 77, 77,
|
|
|
|
77, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
|
|
|
|
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 77, 77, 77, 77, 77,
|
|
|
|
|
|
|
|
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
|
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
|
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
|
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
|
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
|
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
|
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77,
|
|
|
|
77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77 };
|
|
|
|
|
|
|
|
for (len = 0; len < src->len; len++) {
|
|
|
|
if (src->data[len] == '=') {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (basis64[src->data[len]] == 77) {
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (len % 4 == 1) {
|
|
|
|
return NGX_ERROR;
|
|
|
|
}
|
2004-07-31 01:05:14 +08:00
|
|
|
|
2004-08-27 23:40:59 +08:00
|
|
|
s = src->data;
|
2004-08-29 11:55:41 +08:00
|
|
|
d = dst->data;
|
2004-07-31 01:05:14 +08:00
|
|
|
|
2004-08-27 23:40:59 +08:00
|
|
|
while (len > 3) {
|
2004-08-29 11:55:41 +08:00
|
|
|
*d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
|
|
|
*d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
|
|
|
*d++ = (u_char) (basis64[s[2]] << 6 | basis64[s[3]]);
|
2004-07-31 01:05:14 +08:00
|
|
|
|
2004-08-27 23:40:59 +08:00
|
|
|
s += 4;
|
|
|
|
len -= 4;
|
|
|
|
}
|
2004-07-31 01:05:14 +08:00
|
|
|
|
2004-08-27 23:40:59 +08:00
|
|
|
if (len > 1) {
|
2004-08-29 11:55:41 +08:00
|
|
|
*d++ = (u_char) (basis64[s[0]] << 2 | basis64[s[1]] >> 4);
|
2004-08-27 23:40:59 +08:00
|
|
|
}
|
2004-07-31 01:05:14 +08:00
|
|
|
|
2004-08-27 23:40:59 +08:00
|
|
|
if (len > 2) {
|
2004-08-29 11:55:41 +08:00
|
|
|
*d++ = (u_char) (basis64[s[1]] << 4 | basis64[s[2]] >> 2);
|
2004-07-31 01:05:14 +08:00
|
|
|
}
|
|
|
|
|
2004-08-27 23:40:59 +08:00
|
|
|
dst->len = d - dst->data;
|
|
|
|
|
2004-07-31 01:05:14 +08:00
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2004-10-11 23:07:03 +08:00
|
|
|
ngx_int_t ngx_escape_uri(u_char *dst, u_char *src, size_t size)
|
2003-03-21 00:09:44 +08:00
|
|
|
{
|
2004-10-11 23:07:03 +08:00
|
|
|
ngx_int_t n;
|
|
|
|
ngx_uint_t i;
|
|
|
|
static u_char hex[] = "0123456789abcdef";
|
|
|
|
static uint32_t escape[] =
|
|
|
|
{ 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
|
|
|
|
|
/* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */
|
|
|
|
0x80000021, /* 1000 0000 0000 0000 0000 0000 0010 0001 */
|
|
|
|
|
|
|
|
/* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */
|
|
|
|
0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
|
|
|
|
|
/* ~}| {zyx wvut srqp onml kjih gfed cba` */
|
|
|
|
0x80000000, /* 1000 0000 0000 0000 0000 0000 0000 0000 */
|
|
|
|
|
|
|
|
0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
|
0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
|
0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */
|
|
|
|
0xffffffff /* 1111 1111 1111 1111 1111 1111 1111 1111 */ };
|
|
|
|
|
|
|
|
if (dst == NULL) {
|
|
|
|
|
|
|
|
/* find the number of the characters to be escaped */
|
2003-03-21 00:09:44 +08:00
|
|
|
|
2004-10-11 23:07:03 +08:00
|
|
|
n = 0;
|
|
|
|
|
|
|
|
for (i = 0; i < size; i++) {
|
|
|
|
if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
|
n++;
|
|
|
|
}
|
|
|
|
src++;
|
|
|
|
}
|
|
|
|
|
|
|
|
return n;
|
2003-03-21 00:09:44 +08:00
|
|
|
}
|
|
|
|
|
2004-10-11 23:07:03 +08:00
|
|
|
for (i = 0; i < size; i++) {
|
|
|
|
if (escape[*src >> 5] & (1 << (*src & 0x1f))) {
|
|
|
|
*dst++ = '%';
|
|
|
|
*dst++ = hex[*src >> 4];
|
|
|
|
*dst++ = hex[*src & 0xf];
|
|
|
|
src++;
|
2003-03-21 00:09:44 +08:00
|
|
|
|
2004-10-11 23:07:03 +08:00
|
|
|
} else {
|
|
|
|
*dst++ = *src++;
|
|
|
|
}
|
|
|
|
}
|
2003-03-21 00:09:44 +08:00
|
|
|
|
2004-10-11 23:07:03 +08:00
|
|
|
return NGX_OK;
|
2003-03-21 00:09:44 +08:00
|
|
|
}
|