From 6a5411729539fe21117f406699a69974b320eb7e Mon Sep 17 00:00:00 2001 From: Yu Ping Date: Thu, 19 Mar 2020 03:34:52 +0800 Subject: remove nginx build directory Signed-off-by: Yu Ping Change-Id: I73aba722f06f4cc4be484e3d5f4631225d09de83 --- nginx/src/core/ngx_string.c | 2029 ------------------------------------------- 1 file changed, 2029 deletions(-) delete mode 100644 nginx/src/core/ngx_string.c (limited to 'nginx/src/core/ngx_string.c') diff --git a/nginx/src/core/ngx_string.c b/nginx/src/core/ngx_string.c deleted file mode 100644 index 2ee07bf..0000000 --- a/nginx/src/core/ngx_string.c +++ /dev/null @@ -1,2029 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include -#include - - -static u_char *ngx_sprintf_num(u_char *buf, u_char *last, uint64_t ui64, - u_char zero, ngx_uint_t hexadecimal, ngx_uint_t width); -static void ngx_encode_base64_internal(ngx_str_t *dst, ngx_str_t *src, - const u_char *basis, ngx_uint_t padding); -static ngx_int_t ngx_decode_base64_internal(ngx_str_t *dst, ngx_str_t *src, - const u_char *basis); - - -void -ngx_strlow(u_char *dst, u_char *src, size_t n) -{ - while (n) { - *dst = ngx_tolower(*src); - dst++; - src++; - n--; - } -} - - -size_t -ngx_strnlen(u_char *p, size_t n) -{ - size_t i; - - for (i = 0; i < n; i++) { - - if (p[i] == '\0') { - return i; - } - } - - return n; -} - - -u_char * -ngx_cpystrn(u_char *dst, u_char *src, size_t n) -{ - if (n == 0) { - return dst; - } - - while (--n) { - *dst = *src; - - if (*dst == '\0') { - return dst; - } - - dst++; - src++; - } - - *dst = '\0'; - - return dst; -} - - -u_char * -ngx_pstrdup(ngx_pool_t *pool, ngx_str_t *src) -{ - u_char *dst; - - dst = ngx_pnalloc(pool, src->len); - if (dst == NULL) { - return NULL; - } - - ngx_memcpy(dst, src->data, src->len); - - return dst; -} - - -/* - * supported formats: - * %[0][width][x][X]O off_t - * %[0][width]T time_t - * %[0][width][u][x|X]z ssize_t/size_t - * %[0][width][u][x|X]d int/u_int - * %[0][width][u][x|X]l long - * %[0][width|m][u][x|X]i ngx_int_t/ngx_uint_t - * %[0][width][u][x|X]D int32_t/uint32_t - * %[0][width][u][x|X]L int64_t/uint64_t - * %[0][width|m][u][x|X]A ngx_atomic_int_t/ngx_atomic_uint_t - * %[0][width][.width]f double, max valid number fits to %18.15f - * %P ngx_pid_t - * %M ngx_msec_t - * %r rlim_t - * %p void * - * %V ngx_str_t * - * %v ngx_variable_value_t * - * %s null-terminated string - * %*s length and string - * %Z '\0' - * %N '\n' - * %c char - * %% % - * - * reserved: - * %t ptrdiff_t - * %S null-terminated wchar string - * %C wchar - */ - - -u_char * ngx_cdecl -ngx_sprintf(u_char *buf, const char *fmt, ...) -{ - u_char *p; - va_list args; - - va_start(args, fmt); - p = ngx_vslprintf(buf, (void *) -1, fmt, args); - va_end(args); - - return p; -} - - -u_char * ngx_cdecl -ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...) -{ - u_char *p; - va_list args; - - va_start(args, fmt); - p = ngx_vslprintf(buf, buf + max, fmt, args); - va_end(args); - - return p; -} - - -u_char * ngx_cdecl -ngx_slprintf(u_char *buf, u_char *last, const char *fmt, ...) -{ - u_char *p; - va_list args; - - va_start(args, fmt); - p = ngx_vslprintf(buf, last, fmt, args); - va_end(args); - - return p; -} - - -u_char * -ngx_vslprintf(u_char *buf, u_char *last, const char *fmt, va_list args) -{ - u_char *p, zero; - int d; - double f; - size_t len, slen; - int64_t i64; - uint64_t ui64, frac; - ngx_msec_t ms; - ngx_uint_t width, sign, hex, max_width, frac_width, scale, n; - ngx_str_t *v; - ngx_variable_value_t *vv; - - while (*fmt && buf < last) { - - /* - * "buf < last" means that we could copy at least one character: - * the plain character, "%%", "%c", and minus without the checking - */ - - if (*fmt == '%') { - - i64 = 0; - ui64 = 0; - - zero = (u_char) ((*++fmt == '0') ? '0' : ' '); - width = 0; - sign = 1; - hex = 0; - max_width = 0; - frac_width = 0; - slen = (size_t) -1; - - while (*fmt >= '0' && *fmt <= '9') { - width = width * 10 + (*fmt++ - '0'); - } - - - for ( ;; ) { - switch (*fmt) { - - case 'u': - sign = 0; - fmt++; - continue; - - case 'm': - max_width = 1; - fmt++; - continue; - - case 'X': - hex = 2; - sign = 0; - fmt++; - continue; - - case 'x': - hex = 1; - sign = 0; - fmt++; - continue; - - case '.': - fmt++; - - while (*fmt >= '0' && *fmt <= '9') { - frac_width = frac_width * 10 + (*fmt++ - '0'); - } - - break; - - case '*': - slen = va_arg(args, size_t); - fmt++; - continue; - - default: - break; - } - - break; - } - - - switch (*fmt) { - - case 'V': - v = va_arg(args, ngx_str_t *); - - len = ngx_min(((size_t) (last - buf)), v->len); - buf = ngx_cpymem(buf, v->data, len); - fmt++; - - continue; - - case 'v': - vv = va_arg(args, ngx_variable_value_t *); - - len = ngx_min(((size_t) (last - buf)), vv->len); - buf = ngx_cpymem(buf, vv->data, len); - fmt++; - - continue; - - case 's': - p = va_arg(args, u_char *); - - if (slen == (size_t) -1) { - while (*p && buf < last) { - *buf++ = *p++; - } - - } else { - len = ngx_min(((size_t) (last - buf)), slen); - buf = ngx_cpymem(buf, p, len); - } - - fmt++; - - continue; - - case 'O': - i64 = (int64_t) va_arg(args, off_t); - sign = 1; - break; - - case 'P': - i64 = (int64_t) va_arg(args, ngx_pid_t); - sign = 1; - break; - - case 'T': - i64 = (int64_t) va_arg(args, time_t); - sign = 1; - break; - - case 'M': - ms = (ngx_msec_t) va_arg(args, ngx_msec_t); - if ((ngx_msec_int_t) ms == -1) { - sign = 1; - i64 = -1; - } else { - sign = 0; - ui64 = (uint64_t) ms; - } - break; - - case 'z': - if (sign) { - i64 = (int64_t) va_arg(args, ssize_t); - } else { - ui64 = (uint64_t) va_arg(args, size_t); - } - break; - - case 'i': - if (sign) { - i64 = (int64_t) va_arg(args, ngx_int_t); - } else { - ui64 = (uint64_t) va_arg(args, ngx_uint_t); - } - - if (max_width) { - width = NGX_INT_T_LEN; - } - - break; - - case 'd': - if (sign) { - i64 = (int64_t) va_arg(args, int); - } else { - ui64 = (uint64_t) va_arg(args, u_int); - } - break; - - case 'l': - if (sign) { - i64 = (int64_t) va_arg(args, long); - } else { - ui64 = (uint64_t) va_arg(args, u_long); - } - break; - - case 'D': - if (sign) { - i64 = (int64_t) va_arg(args, int32_t); - } else { - ui64 = (uint64_t) va_arg(args, uint32_t); - } - break; - - case 'L': - if (sign) { - i64 = va_arg(args, int64_t); - } else { - ui64 = va_arg(args, uint64_t); - } - break; - - case 'A': - if (sign) { - i64 = (int64_t) va_arg(args, ngx_atomic_int_t); - } else { - ui64 = (uint64_t) va_arg(args, ngx_atomic_uint_t); - } - - if (max_width) { - width = NGX_ATOMIC_T_LEN; - } - - break; - - case 'f': - f = va_arg(args, double); - - if (f < 0) { - *buf++ = '-'; - f = -f; - } - - ui64 = (int64_t) f; - frac = 0; - - if (frac_width) { - - scale = 1; - for (n = frac_width; n; n--) { - scale *= 10; - } - - frac = (uint64_t) ((f - (double) ui64) * scale + 0.5); - - if (frac == scale) { - ui64++; - frac = 0; - } - } - - buf = ngx_sprintf_num(buf, last, ui64, zero, 0, width); - - if (frac_width) { - if (buf < last) { - *buf++ = '.'; - } - - buf = ngx_sprintf_num(buf, last, frac, '0', 0, frac_width); - } - - fmt++; - - continue; - -#if !(NGX_WIN32) - case 'r': - i64 = (int64_t) va_arg(args, rlim_t); - sign = 1; - break; -#endif - - case 'p': - ui64 = (uintptr_t) va_arg(args, void *); - hex = 2; - sign = 0; - zero = '0'; - width = 2 * sizeof(void *); - break; - - case 'c': - d = va_arg(args, int); - *buf++ = (u_char) (d & 0xff); - fmt++; - - continue; - - case 'Z': - *buf++ = '\0'; - fmt++; - - continue; - - case 'N': -#if (NGX_WIN32) - *buf++ = CR; - if (buf < last) { - *buf++ = LF; - } -#else - *buf++ = LF; -#endif - fmt++; - - continue; - - case '%': - *buf++ = '%'; - fmt++; - - continue; - - default: - *buf++ = *fmt++; - - continue; - } - - if (sign) { - if (i64 < 0) { - *buf++ = '-'; - ui64 = (uint64_t) -i64; - - } else { - ui64 = (uint64_t) i64; - } - } - - buf = ngx_sprintf_num(buf, last, ui64, zero, hex, width); - - fmt++; - - } else { - *buf++ = *fmt++; - } - } - - return buf; -} - - -static u_char * -ngx_sprintf_num(u_char *buf, u_char *last, uint64_t ui64, u_char zero, - ngx_uint_t hexadecimal, ngx_uint_t width) -{ - u_char *p, temp[NGX_INT64_LEN + 1]; - /* - * we need temp[NGX_INT64_LEN] only, - * but icc issues the warning - */ - size_t len; - uint32_t ui32; - static u_char hex[] = "0123456789abcdef"; - static u_char HEX[] = "0123456789ABCDEF"; - - p = temp + NGX_INT64_LEN; - - if (hexadecimal == 0) { - - if (ui64 <= (uint64_t) NGX_MAX_UINT32_VALUE) { - - /* - * To divide 64-bit numbers and to find remainders - * on the x86 platform gcc and icc call the libc functions - * [u]divdi3() and [u]moddi3(), they call another function - * in its turn. On FreeBSD it is the qdivrem() function, - * its source code is about 170 lines of the code. - * The glibc counterpart is about 150 lines of the code. - * - * For 32-bit numbers and some divisors gcc and icc use - * a inlined multiplication and shifts. For example, - * unsigned "i32 / 10" is compiled to - * - * (i32 * 0xCCCCCCCD) >> 35 - */ - - ui32 = (uint32_t) ui64; - - do { - *--p = (u_char) (ui32 % 10 + '0'); - } while (ui32 /= 10); - - } else { - do { - *--p = (u_char) (ui64 % 10 + '0'); - } while (ui64 /= 10); - } - - } else if (hexadecimal == 1) { - - do { - - /* the "(uint32_t)" cast disables the BCC's warning */ - *--p = hex[(uint32_t) (ui64 & 0xf)]; - - } while (ui64 >>= 4); - - } else { /* hexadecimal == 2 */ - - do { - - /* the "(uint32_t)" cast disables the BCC's warning */ - *--p = HEX[(uint32_t) (ui64 & 0xf)]; - - } while (ui64 >>= 4); - } - - /* zero or space padding */ - - len = (temp + NGX_INT64_LEN) - p; - - while (len++ < width && buf < last) { - *buf++ = zero; - } - - /* number safe copy */ - - len = (temp + NGX_INT64_LEN) - p; - - if (buf + len > last) { - len = last - buf; - } - - return ngx_cpymem(buf, p, len); -} - - -/* - * We use ngx_strcasecmp()/ngx_strncasecmp() for 7-bit ASCII strings only, - * and implement our own ngx_strcasecmp()/ngx_strncasecmp() - * to avoid libc locale overhead. Besides, we use the ngx_uint_t's - * instead of the u_char's, because they are slightly faster. - */ - -ngx_int_t -ngx_strcasecmp(u_char *s1, u_char *s2) -{ - ngx_uint_t c1, c2; - - for ( ;; ) { - c1 = (ngx_uint_t) *s1++; - c2 = (ngx_uint_t) *s2++; - - c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1; - c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2; - - if (c1 == c2) { - - if (c1) { - continue; - } - - return 0; - } - - return c1 - c2; - } -} - - -ngx_int_t -ngx_strncasecmp(u_char *s1, u_char *s2, size_t n) -{ - ngx_uint_t c1, c2; - - while (n) { - c1 = (ngx_uint_t) *s1++; - c2 = (ngx_uint_t) *s2++; - - c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1; - c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2; - - if (c1 == c2) { - - if (c1) { - n--; - continue; - } - - return 0; - } - - return c1 - c2; - } - - return 0; -} - - -u_char * -ngx_strnstr(u_char *s1, char *s2, size_t len) -{ - u_char c1, c2; - size_t n; - - c2 = *(u_char *) s2++; - - n = ngx_strlen(s2); - - do { - do { - if (len-- == 0) { - return NULL; - } - - c1 = *s1++; - - if (c1 == 0) { - return NULL; - } - - } while (c1 != c2); - - if (n > len) { - return NULL; - } - - } while (ngx_strncmp(s1, (u_char *) s2, n) != 0); - - return --s1; -} - - -/* - * ngx_strstrn() and ngx_strcasestrn() are intended to search for static - * substring with known length in null-terminated string. The argument n - * must be length of the second substring - 1. - */ - -u_char * -ngx_strstrn(u_char *s1, char *s2, size_t n) -{ - u_char c1, c2; - - c2 = *(u_char *) s2++; - - do { - do { - c1 = *s1++; - - if (c1 == 0) { - return NULL; - } - - } while (c1 != c2); - - } while (ngx_strncmp(s1, (u_char *) s2, n) != 0); - - return --s1; -} - - -u_char * -ngx_strcasestrn(u_char *s1, char *s2, size_t n) -{ - ngx_uint_t c1, c2; - - c2 = (ngx_uint_t) *s2++; - c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2; - - do { - do { - c1 = (ngx_uint_t) *s1++; - - if (c1 == 0) { - return NULL; - } - - c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1; - - } while (c1 != c2); - - } while (ngx_strncasecmp(s1, (u_char *) s2, n) != 0); - - return --s1; -} - - -/* - * ngx_strlcasestrn() is intended to search for static substring - * with known length in string until the argument last. The argument n - * must be length of the second substring - 1. - */ - -u_char * -ngx_strlcasestrn(u_char *s1, u_char *last, u_char *s2, size_t n) -{ - ngx_uint_t c1, c2; - - c2 = (ngx_uint_t) *s2++; - c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2; - last -= n; - - do { - do { - if (s1 >= last) { - return NULL; - } - - c1 = (ngx_uint_t) *s1++; - - c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1; - - } while (c1 != c2); - - } while (ngx_strncasecmp(s1, s2, n) != 0); - - return --s1; -} - - -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_rstrncasecmp(u_char *s1, u_char *s2, size_t n) -{ - u_char c1, c2; - - if (n == 0) { - return 0; - } - - n--; - - for ( ;; ) { - c1 = s1[n]; - if (c1 >= 'a' && c1 <= 'z') { - c1 -= 'a' - 'A'; - } - - c2 = s2[n]; - if (c2 >= 'a' && c2 <= 'z') { - c2 -= 'a' - 'A'; - } - - if (c1 != c2) { - return c1 - c2; - } - - if (n == 0) { - return 0; - } - - n--; - } -} - - -ngx_int_t -ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2) -{ - size_t n; - ngx_int_t m, z; - - if (n1 <= n2) { - n = n1; - z = -1; - - } else { - n = n2; - z = 1; - } - - m = ngx_memcmp(s1, s2, n); - - if (m || n1 == n2) { - return m; - } - - return z; -} - - -ngx_int_t -ngx_dns_strcmp(u_char *s1, u_char *s2) -{ - ngx_uint_t c1, c2; - - for ( ;; ) { - c1 = (ngx_uint_t) *s1++; - c2 = (ngx_uint_t) *s2++; - - c1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 | 0x20) : c1; - c2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 | 0x20) : c2; - - if (c1 == c2) { - - if (c1) { - continue; - } - - return 0; - } - - /* in ASCII '.' > '-', but we need '.' to be the lowest character */ - - c1 = (c1 == '.') ? ' ' : c1; - c2 = (c2 == '.') ? ' ' : c2; - - return c1 - c2; - } -} - - -ngx_int_t -ngx_filename_cmp(u_char *s1, u_char *s2, size_t n) -{ - ngx_uint_t c1, c2; - - while (n) { - c1 = (ngx_uint_t) *s1++; - c2 = (ngx_uint_t) *s2++; - -#if (NGX_HAVE_CASELESS_FILESYSTEM) - c1 = tolower(c1); - c2 = tolower(c2); -#endif - - if (c1 == c2) { - - if (c1) { - n--; - continue; - } - - return 0; - } - - /* we need '/' to be the lowest character */ - - if (c1 == 0 || c2 == 0) { - return c1 - c2; - } - - c1 = (c1 == '/') ? 0 : c1; - c2 = (c2 == '/') ? 0 : c2; - - return c1 - c2; - } - - return 0; -} - - -ngx_int_t -ngx_atoi(u_char *line, size_t n) -{ - ngx_int_t value, cutoff, cutlim; - - if (n == 0) { - return NGX_ERROR; - } - - cutoff = NGX_MAX_INT_T_VALUE / 10; - cutlim = NGX_MAX_INT_T_VALUE % 10; - - for (value = 0; n--; line++) { - if (*line < '0' || *line > '9') { - return NGX_ERROR; - } - - if (value >= cutoff && (value > cutoff || *line - '0' > cutlim)) { - return NGX_ERROR; - } - - value = value * 10 + (*line - '0'); - } - - return value; -} - - -/* parse a fixed point number, e.g., ngx_atofp("10.5", 4, 2) returns 1050 */ - -ngx_int_t -ngx_atofp(u_char *line, size_t n, size_t point) -{ - ngx_int_t value, cutoff, cutlim; - ngx_uint_t dot; - - if (n == 0) { - return NGX_ERROR; - } - - cutoff = NGX_MAX_INT_T_VALUE / 10; - cutlim = NGX_MAX_INT_T_VALUE % 10; - - dot = 0; - - for (value = 0; n--; line++) { - - if (point == 0) { - return NGX_ERROR; - } - - if (*line == '.') { - if (dot) { - return NGX_ERROR; - } - - dot = 1; - continue; - } - - if (*line < '0' || *line > '9') { - return NGX_ERROR; - } - - if (value >= cutoff && (value > cutoff || *line - '0' > cutlim)) { - return NGX_ERROR; - } - - value = value * 10 + (*line - '0'); - point -= dot; - } - - while (point--) { - if (value > cutoff) { - return NGX_ERROR; - } - - value = value * 10; - } - - return value; -} - - -ssize_t -ngx_atosz(u_char *line, size_t n) -{ - ssize_t value, cutoff, cutlim; - - if (n == 0) { - return NGX_ERROR; - } - - cutoff = NGX_MAX_SIZE_T_VALUE / 10; - cutlim = NGX_MAX_SIZE_T_VALUE % 10; - - for (value = 0; n--; line++) { - if (*line < '0' || *line > '9') { - return NGX_ERROR; - } - - if (value >= cutoff && (value > cutoff || *line - '0' > cutlim)) { - return NGX_ERROR; - } - - value = value * 10 + (*line - '0'); - } - - return value; -} - - -off_t -ngx_atoof(u_char *line, size_t n) -{ - off_t value, cutoff, cutlim; - - if (n == 0) { - return NGX_ERROR; - } - - cutoff = NGX_MAX_OFF_T_VALUE / 10; - cutlim = NGX_MAX_OFF_T_VALUE % 10; - - for (value = 0; n--; line++) { - if (*line < '0' || *line > '9') { - return NGX_ERROR; - } - - if (value >= cutoff && (value > cutoff || *line - '0' > cutlim)) { - return NGX_ERROR; - } - - value = value * 10 + (*line - '0'); - } - - return value; -} - - -time_t -ngx_atotm(u_char *line, size_t n) -{ - time_t value, cutoff, cutlim; - - if (n == 0) { - return NGX_ERROR; - } - - cutoff = NGX_MAX_TIME_T_VALUE / 10; - cutlim = NGX_MAX_TIME_T_VALUE % 10; - - for (value = 0; n--; line++) { - if (*line < '0' || *line > '9') { - return NGX_ERROR; - } - - if (value >= cutoff && (value > cutoff || *line - '0' > cutlim)) { - return NGX_ERROR; - } - - value = value * 10 + (*line - '0'); - } - - return value; -} - - -ngx_int_t -ngx_hextoi(u_char *line, size_t n) -{ - u_char c, ch; - ngx_int_t value, cutoff; - - if (n == 0) { - return NGX_ERROR; - } - - cutoff = NGX_MAX_INT_T_VALUE / 16; - - for (value = 0; n--; line++) { - if (value > cutoff) { - return NGX_ERROR; - } - - ch = *line; - - if (ch >= '0' && ch <= '9') { - value = value * 16 + (ch - '0'); - continue; - } - - c = (u_char) (ch | 0x20); - - if (c >= 'a' && c <= 'f') { - value = value * 16 + (c - 'a' + 10); - continue; - } - - return NGX_ERROR; - } - - return value; -} - - -u_char * -ngx_hex_dump(u_char *dst, u_char *src, size_t len) -{ - static u_char hex[] = "0123456789abcdef"; - - while (len--) { - *dst++ = hex[*src >> 4]; - *dst++ = hex[*src++ & 0xf]; - } - - return dst; -} - - -void -ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src) -{ - static u_char basis64[] = - "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; - - ngx_encode_base64_internal(dst, src, basis64, 1); -} - - -void -ngx_encode_base64url(ngx_str_t *dst, ngx_str_t *src) -{ - static u_char basis64[] = - "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"; - - ngx_encode_base64_internal(dst, src, basis64, 0); -} - - -static void -ngx_encode_base64_internal(ngx_str_t *dst, ngx_str_t *src, const u_char *basis, - ngx_uint_t padding) -{ - u_char *d, *s; - size_t len; - - len = src->len; - s = src->data; - d = dst->data; - - while (len > 2) { - *d++ = basis[(s[0] >> 2) & 0x3f]; - *d++ = basis[((s[0] & 3) << 4) | (s[1] >> 4)]; - *d++ = basis[((s[1] & 0x0f) << 2) | (s[2] >> 6)]; - *d++ = basis[s[2] & 0x3f]; - - s += 3; - len -= 3; - } - - if (len) { - *d++ = basis[(s[0] >> 2) & 0x3f]; - - if (len == 1) { - *d++ = basis[(s[0] & 3) << 4]; - if (padding) { - *d++ = '='; - } - - } else { - *d++ = basis[((s[0] & 3) << 4) | (s[1] >> 4)]; - *d++ = basis[(s[1] & 0x0f) << 2]; - } - - if (padding) { - *d++ = '='; - } - } - - dst->len = d - dst->data; -} - - -ngx_int_t -ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src) -{ - 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 - }; - - return ngx_decode_base64_internal(dst, src, basis64); -} - - -ngx_int_t -ngx_decode_base64url(ngx_str_t *dst, ngx_str_t *src) -{ - 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, 77, 77, 62, 77, 77, - 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, 63, - 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 - }; - - return ngx_decode_base64_internal(dst, src, basis64); -} - - -static ngx_int_t -ngx_decode_base64_internal(ngx_str_t *dst, ngx_str_t *src, const u_char *basis) -{ - size_t len; - u_char *d, *s; - - for (len = 0; len < src->len; len++) { - if (src->data[len] == '=') { - break; - } - - if (basis[src->data[len]] == 77) { - return NGX_ERROR; - } - } - - if (len % 4 == 1) { - return NGX_ERROR; - } - - s = src->data; - d = dst->data; - - while (len > 3) { - *d++ = (u_char) (basis[s[0]] << 2 | basis[s[1]] >> 4); - *d++ = (u_char) (basis[s[1]] << 4 | basis[s[2]] >> 2); - *d++ = (u_char) (basis[s[2]] << 6 | basis[s[3]]); - - s += 4; - len -= 4; - } - - if (len > 1) { - *d++ = (u_char) (basis[s[0]] << 2 | basis[s[1]] >> 4); - } - - if (len > 2) { - *d++ = (u_char) (basis[s[1]] << 4 | basis[s[2]] >> 2); - } - - dst->len = d - dst->data; - - return NGX_OK; -} - - -/* - * ngx_utf8_decode() decodes two and more bytes UTF sequences only - * the return values: - * 0x80 - 0x10ffff valid character - * 0x110000 - 0xfffffffd invalid sequence - * 0xfffffffe incomplete sequence - * 0xffffffff error - */ - -uint32_t -ngx_utf8_decode(u_char **p, size_t n) -{ - size_t len; - uint32_t u, i, valid; - - u = **p; - - if (u >= 0xf0) { - - u &= 0x07; - valid = 0xffff; - len = 3; - - } else if (u >= 0xe0) { - - u &= 0x0f; - valid = 0x7ff; - len = 2; - - } else if (u >= 0xc2) { - - u &= 0x1f; - valid = 0x7f; - len = 1; - - } else { - (*p)++; - return 0xffffffff; - } - - if (n - 1 < len) { - return 0xfffffffe; - } - - (*p)++; - - while (len) { - i = *(*p)++; - - if (i < 0x80) { - return 0xffffffff; - } - - u = (u << 6) | (i & 0x3f); - - len--; - } - - if (u > valid) { - return u; - } - - return 0xffffffff; -} - - -size_t -ngx_utf8_length(u_char *p, size_t n) -{ - u_char c, *last; - size_t len; - - last = p + n; - - for (len = 0; p < last; len++) { - - c = *p; - - if (c < 0x80) { - p++; - continue; - } - - if (ngx_utf8_decode(&p, n) > 0x10ffff) { - /* invalid UTF-8 */ - return n; - } - } - - return len; -} - - -u_char * -ngx_utf8_cpystrn(u_char *dst, u_char *src, size_t n, size_t len) -{ - u_char c, *next; - - if (n == 0) { - return dst; - } - - while (--n) { - - c = *src; - *dst = c; - - if (c < 0x80) { - - if (c != '\0') { - dst++; - src++; - len--; - - continue; - } - - return dst; - } - - next = src; - - if (ngx_utf8_decode(&next, len) > 0x10ffff) { - /* invalid UTF-8 */ - break; - } - - while (src < next) { - *dst++ = *src++; - len--; - } - } - - *dst = '\0'; - - return dst; -} - - -uintptr_t -ngx_escape_uri(u_char *dst, u_char *src, size_t size, ngx_uint_t type) -{ - ngx_uint_t n; - uint32_t *escape; - static u_char hex[] = "0123456789ABCDEF"; - - /* " ", "#", "%", "?", %00-%1F, %7F-%FF */ - - static uint32_t uri[] = { - 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */ - - /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */ - 0x80000029, /* 1000 0000 0000 0000 0000 0000 0010 1001 */ - - /* _^]\ [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 */ - }; - - /* " ", "#", "%", "&", "+", "?", %00-%1F, %7F-%FF */ - - static uint32_t args[] = { - 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */ - - /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */ - 0x88000869, /* 1000 1000 0000 0000 0000 1000 0110 1001 */ - - /* _^]\ [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 */ - }; - - /* not ALPHA, DIGIT, "-", ".", "_", "~" */ - - static uint32_t uri_component[] = { - 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */ - - /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */ - 0xfc009fff, /* 1111 1100 0000 0000 1001 1111 1111 1111 */ - - /* _^]\ [ZYX WVUT SRQP ONML KJIH GFED CBA@ */ - 0x78000001, /* 0111 1000 0000 0000 0000 0000 0000 0001 */ - - /* ~}| {zyx wvut srqp onml kjih gfed cba` */ - 0xb8000001, /* 1011 1000 0000 0000 0000 0000 0000 0001 */ - - 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 */ - }; - - /* " ", "#", """, "%", "'", %00-%1F, %7F-%FF */ - - static uint32_t html[] = { - 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */ - - /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */ - 0x000000ad, /* 0000 0000 0000 0000 0000 0000 1010 1101 */ - - /* _^]\ [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 */ - }; - - /* " ", """, "%", "'", %00-%1F, %7F-%FF */ - - static uint32_t refresh[] = { - 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */ - - /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */ - 0x00000085, /* 0000 0000 0000 0000 0000 0000 1000 0101 */ - - /* _^]\ [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 */ - }; - - /* " ", "%", %00-%1F */ - - static uint32_t memcached[] = { - 0xffffffff, /* 1111 1111 1111 1111 1111 1111 1111 1111 */ - - /* ?>=< ;:98 7654 3210 /.-, +*)( '&%$ #"! */ - 0x00000021, /* 0000 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` */ - 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */ - - 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */ - 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */ - 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */ - 0x00000000, /* 0000 0000 0000 0000 0000 0000 0000 0000 */ - }; - - /* mail_auth is the same as memcached */ - - static uint32_t *map[] = - { uri, args, uri_component, html, refresh, memcached, memcached }; - - - escape = map[type]; - - if (dst == NULL) { - - /* find the number of the characters to be escaped */ - - n = 0; - - while (size) { - if (escape[*src >> 5] & (1U << (*src & 0x1f))) { - n++; - } - src++; - size--; - } - - return (uintptr_t) n; - } - - while (size) { - if (escape[*src >> 5] & (1U << (*src & 0x1f))) { - *dst++ = '%'; - *dst++ = hex[*src >> 4]; - *dst++ = hex[*src & 0xf]; - src++; - - } else { - *dst++ = *src++; - } - size--; - } - - return (uintptr_t) dst; -} - - -void -ngx_unescape_uri(u_char **dst, u_char **src, size_t size, ngx_uint_t type) -{ - u_char *d, *s, ch, c, decoded; - enum { - sw_usual = 0, - sw_quoted, - sw_quoted_second - } state; - - d = *dst; - s = *src; - - state = 0; - decoded = 0; - - while (size--) { - - ch = *s++; - - switch (state) { - case sw_usual: - if (ch == '?' - && (type & (NGX_UNESCAPE_URI|NGX_UNESCAPE_REDIRECT))) - { - *d++ = ch; - goto done; - } - - if (ch == '%') { - state = sw_quoted; - break; - } - - *d++ = ch; - break; - - case sw_quoted: - - if (ch >= '0' && ch <= '9') { - decoded = (u_char) (ch - '0'); - state = sw_quoted_second; - break; - } - - c = (u_char) (ch | 0x20); - if (c >= 'a' && c <= 'f') { - decoded = (u_char) (c - 'a' + 10); - state = sw_quoted_second; - break; - } - - /* the invalid quoted character */ - - state = sw_usual; - - *d++ = ch; - - break; - - case sw_quoted_second: - - state = sw_usual; - - if (ch >= '0' && ch <= '9') { - ch = (u_char) ((decoded << 4) + (ch - '0')); - - if (type & NGX_UNESCAPE_REDIRECT) { - if (ch > '%' && ch < 0x7f) { - *d++ = ch; - break; - } - - *d++ = '%'; *d++ = *(s - 2); *d++ = *(s - 1); - - break; - } - - *d++ = ch; - - break; - } - - c = (u_char) (ch | 0x20); - if (c >= 'a' && c <= 'f') { - ch = (u_char) ((decoded << 4) + (c - 'a') + 10); - - if (type & NGX_UNESCAPE_URI) { - if (ch == '?') { - *d++ = ch; - goto done; - } - - *d++ = ch; - break; - } - - if (type & NGX_UNESCAPE_REDIRECT) { - if (ch == '?') { - *d++ = ch; - goto done; - } - - if (ch > '%' && ch < 0x7f) { - *d++ = ch; - break; - } - - *d++ = '%'; *d++ = *(s - 2); *d++ = *(s - 1); - break; - } - - *d++ = ch; - - break; - } - - /* the invalid quoted character */ - - break; - } - } - -done: - - *dst = d; - *src = s; -} - - -uintptr_t -ngx_escape_html(u_char *dst, u_char *src, size_t size) -{ - u_char ch; - ngx_uint_t len; - - if (dst == NULL) { - - len = 0; - - while (size) { - switch (*src++) { - - case '<': - len += sizeof("<") - 2; - break; - - case '>': - len += sizeof(">") - 2; - break; - - case '&': - len += sizeof("&") - 2; - break; - - case '"': - len += sizeof(""") - 2; - break; - - default: - break; - } - size--; - } - - return (uintptr_t) len; - } - - while (size) { - ch = *src++; - - switch (ch) { - - case '<': - *dst++ = '&'; *dst++ = 'l'; *dst++ = 't'; *dst++ = ';'; - break; - - case '>': - *dst++ = '&'; *dst++ = 'g'; *dst++ = 't'; *dst++ = ';'; - break; - - case '&': - *dst++ = '&'; *dst++ = 'a'; *dst++ = 'm'; *dst++ = 'p'; - *dst++ = ';'; - break; - - case '"': - *dst++ = '&'; *dst++ = 'q'; *dst++ = 'u'; *dst++ = 'o'; - *dst++ = 't'; *dst++ = ';'; - break; - - default: - *dst++ = ch; - break; - } - size--; - } - - return (uintptr_t) dst; -} - - -uintptr_t -ngx_escape_json(u_char *dst, u_char *src, size_t size) -{ - u_char ch; - ngx_uint_t len; - - if (dst == NULL) { - len = 0; - - while (size) { - ch = *src++; - - if (ch == '\\' || ch == '"') { - len++; - - } else if (ch <= 0x1f) { - - switch (ch) { - case '\n': - case '\r': - case '\t': - case '\b': - case '\f': - len++; - break; - - default: - len += sizeof("\\u001F") - 2; - } - } - - size--; - } - - return (uintptr_t) len; - } - - while (size) { - ch = *src++; - - if (ch > 0x1f) { - - if (ch == '\\' || ch == '"') { - *dst++ = '\\'; - } - - *dst++ = ch; - - } else { - *dst++ = '\\'; - - switch (ch) { - case '\n': - *dst++ = 'n'; - break; - - case '\r': - *dst++ = 'r'; - break; - - case '\t': - *dst++ = 't'; - break; - - case '\b': - *dst++ = 'b'; - break; - - case '\f': - *dst++ = 'f'; - break; - - default: - *dst++ = 'u'; *dst++ = '0'; *dst++ = '0'; - *dst++ = '0' + (ch >> 4); - - ch &= 0xf; - - *dst++ = (ch < 10) ? ('0' + ch) : ('A' + ch - 10); - } - } - - size--; - } - - return (uintptr_t) dst; -} - - -void -ngx_str_rbtree_insert_value(ngx_rbtree_node_t *temp, - ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel) -{ - ngx_str_node_t *n, *t; - ngx_rbtree_node_t **p; - - for ( ;; ) { - - n = (ngx_str_node_t *) node; - t = (ngx_str_node_t *) temp; - - if (node->key != temp->key) { - - p = (node->key < temp->key) ? &temp->left : &temp->right; - - } else if (n->str.len != t->str.len) { - - p = (n->str.len < t->str.len) ? &temp->left : &temp->right; - - } else { - p = (ngx_memcmp(n->str.data, t->str.data, n->str.len) < 0) - ? &temp->left : &temp->right; - } - - if (*p == sentinel) { - break; - } - - temp = *p; - } - - *p = node; - node->parent = temp; - node->left = sentinel; - node->right = sentinel; - ngx_rbt_red(node); -} - - -ngx_str_node_t * -ngx_str_rbtree_lookup(ngx_rbtree_t *rbtree, ngx_str_t *val, uint32_t hash) -{ - ngx_int_t rc; - ngx_str_node_t *n; - ngx_rbtree_node_t *node, *sentinel; - - node = rbtree->root; - sentinel = rbtree->sentinel; - - while (node != sentinel) { - - n = (ngx_str_node_t *) node; - - if (hash != node->key) { - node = (hash < node->key) ? node->left : node->right; - continue; - } - - if (val->len != n->str.len) { - node = (val->len < n->str.len) ? node->left : node->right; - continue; - } - - rc = ngx_memcmp(val->data, n->str.data, val->len); - - if (rc < 0) { - node = node->left; - continue; - } - - if (rc > 0) { - node = node->right; - continue; - } - - return n; - } - - return NULL; -} - - -/* ngx_sort() is implemented as insertion sort because we need stable sort */ - -void -ngx_sort(void *base, size_t n, size_t size, - ngx_int_t (*cmp)(const void *, const void *)) -{ - u_char *p1, *p2, *p; - - p = ngx_alloc(size, ngx_cycle->log); - if (p == NULL) { - return; - } - - for (p1 = (u_char *) base + size; - p1 < (u_char *) base + n * size; - p1 += size) - { - ngx_memcpy(p, p1, size); - - for (p2 = p1; - p2 > (u_char *) base && cmp(p2 - size, p) > 0; - p2 -= size) - { - ngx_memcpy(p2, p2 - size, size); - } - - ngx_memcpy(p2, p, size); - } - - ngx_free(p); -} - - -#if (NGX_MEMCPY_LIMIT) - -void * -ngx_memcpy(void *dst, const void *src, size_t n) -{ - if (n > NGX_MEMCPY_LIMIT) { - ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, "memcpy %uz bytes", n); - ngx_debug_point(); - } - - return memcpy(dst, src, n); -} - -#endif -- cgit 1.2.3-korg