Mercurial > hg > nginx
annotate src/core/ngx_string.h @ 2159:0ec936b0010a
clear Last-Modified; set content-type and length for main request only
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 06 Aug 2008 13:18:57 +0000 |
parents | 8c6521eedf84 |
children | 49a269b67213 |
rev | line source |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #ifndef _NGX_STRING_H_INCLUDED_ |
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8 #define _NGX_STRING_H_INCLUDED_ |
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11 #include <ngx_config.h> |
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12 #include <ngx_core.h> |
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15 typedef struct { |
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16 size_t len; |
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17 u_char *data; |
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18 } ngx_str_t; |
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649 | 21 typedef struct { |
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22 ngx_str_t key; |
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23 ngx_str_t value; |
649 | 24 } ngx_keyval_t; |
25 | |
26 | |
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27 typedef struct { |
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28 unsigned len:28; |
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29 |
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30 unsigned valid:1; |
1565 | 31 unsigned no_cacheable:1; |
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32 unsigned not_found:1; |
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33 unsigned escape:1; |
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34 |
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35 u_char *data; |
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36 } ngx_variable_value_t; |
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37 |
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38 |
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39 #define ngx_string(str) { sizeof(str) - 1, (u_char *) str } |
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40 #define ngx_null_string { 0, NULL } |
477 | 41 |
42 | |
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43 #define ngx_tolower(c) (u_char) ((c >= 'A' && c <= 'Z') ? (c | 0x20) : c) |
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44 #define ngx_toupper(c) (u_char) ((c >= 'a' && c <= 'z') ? (c & ~0x20) : c) |
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45 |
2135 | 46 void ngx_strlow(u_char *dst, u_char *src, size_t n); |
47 | |
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461 | 49 #define ngx_strncmp(s1, s2, n) strncmp((const char *) s1, (const char *) s2, n) |
50 | |
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573 | 52 /* msvc and icc7 compile strcmp() to inline loop */ |
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53 #define ngx_strcmp(s1, s2) strcmp((const char *) s1, (const char *) s2) |
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461 | 55 |
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56 #define ngx_strstr(s1, s2) strstr((const char *) s1, (const char *) s2) |
1157 | 57 #define ngx_strchr(s1, c) strchr((const char *) s1, (int) c) |
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58 #define ngx_strlen(s) strlen((const char *) s) |
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461 | 60 |
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61 /* |
573 | 62 * msvc and icc7 compile memset() to the inline "rep stos" |
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63 * while ZeroMemory() and bzero() are the calls. |
573 | 64 * icc7 may also inline several mov's of a zeroed register for small blocks. |
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65 */ |
515 | 66 #define ngx_memzero(buf, n) (void) memset(buf, 0, n) |
67 #define ngx_memset(buf, c, n) (void) memset(buf, c, n) | |
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68 |
461 | 69 |
583 | 70 #if (NGX_MEMCPY_LIMIT) |
71 | |
72 void *ngx_memcpy(void *dst, void *src, size_t n); | |
73 #define ngx_cpymem(dst, src, n) ((u_char *) ngx_memcpy(dst, src, n)) + (n) | |
74 | |
75 #else | |
76 | |
573 | 77 /* |
78 * gcc3, msvc, and icc7 compile memcpy() to the inline "rep movs". | |
79 * gcc3 compiles memcpy(d, s, 4) to the inline "mov"es. | |
80 * icc8 compile memcpy(d, s, 4) to the inline "mov"es or XMM moves. | |
81 */ | |
515 | 82 #define ngx_memcpy(dst, src, n) (void) memcpy(dst, src, n) |
479 | 83 #define ngx_cpymem(dst, src, n) ((u_char *) memcpy(dst, src, n)) + (n) |
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84 |
583 | 85 #endif |
86 | |
461 | 87 |
573 | 88 #if ( __INTEL_COMPILER >= 800 ) |
89 | |
90 /* | |
91 * the simple inline cycle copies the variable length strings up to 16 | |
92 * bytes faster than icc8 autodetecting _intel_fast_memcpy() | |
93 */ | |
94 | |
95 static ngx_inline u_char * | |
96 ngx_copy(u_char *dst, u_char *src, size_t len) | |
97 { | |
98 if (len < 17) { | |
99 | |
100 while (len) { | |
101 *dst++ = *src++; | |
102 len--; | |
103 } | |
104 | |
105 return dst; | |
106 | |
107 } else { | |
108 return ngx_cpymem(dst, src, len); | |
109 } | |
110 } | |
111 | |
112 #else | |
113 | |
114 #define ngx_copy ngx_cpymem | |
115 | |
116 #endif | |
117 | |
118 | |
119 /* msvc and icc7 compile memcmp() to the inline loop */ | |
1648 | 120 #define ngx_memcmp(s1, s2, n) memcmp((const char *) s1, (const char *) s2, n) |
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121 |
461 | 122 |
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123 u_char *ngx_cpystrn(u_char *dst, u_char *src, size_t n); |
485 | 124 u_char *ngx_pstrdup(ngx_pool_t *pool, ngx_str_t *src); |
503 | 125 u_char * ngx_cdecl ngx_sprintf(u_char *buf, const char *fmt, ...); |
126 u_char * ngx_cdecl ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...); | |
461 | 127 u_char *ngx_vsnprintf(u_char *buf, size_t max, const char *fmt, va_list args); |
455 | 128 |
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129 ngx_int_t ngx_strcasecmp(u_char *s1, u_char *s2); |
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130 ngx_int_t ngx_strncasecmp(u_char *s1, u_char *s2, size_t n); |
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131 |
1552 | 132 u_char *ngx_strnstr(u_char *s1, char *s2, size_t n); |
133 | |
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134 u_char *ngx_strstrn(u_char *s1, char *s2, size_t n); |
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135 u_char *ngx_strcasestrn(u_char *s1, char *s2, size_t n); |
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137 ngx_int_t ngx_rstrncmp(u_char *s1, u_char *s2, size_t n); |
455 | 138 ngx_int_t ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n); |
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139 ngx_int_t ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2); |
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141 ngx_int_t ngx_atoi(u_char *line, size_t n); |
501 | 142 ssize_t ngx_atosz(u_char *line, size_t n); |
143 off_t ngx_atoof(u_char *line, size_t n); | |
144 time_t ngx_atotm(u_char *line, size_t n); | |
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145 ngx_int_t ngx_hextoi(u_char *line, size_t n); |
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147 u_char *ngx_hex_dump(u_char *dst, u_char *src, size_t len); |
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150 #define ngx_base64_encoded_length(len) (((len + 2) / 3) * 4) |
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151 #define ngx_base64_decoded_length(len) (((len + 3) / 4) * 3) |
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152 |
452 | 153 void ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src); |
154 ngx_int_t ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src); | |
461 | 155 |
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156 uint32_t ngx_utf8_decode(u_char **p, size_t n); |
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157 size_t ngx_utf8_length(u_char *p, size_t n); |
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158 u_char *ngx_utf8_cpystrn(u_char *dst, u_char *src, size_t n, size_t len); |
527 | 159 |
461 | 160 |
1593 | 161 #define NGX_ESCAPE_URI 0 |
162 #define NGX_ESCAPE_ARGS 1 | |
163 #define NGX_ESCAPE_HTML 2 | |
164 #define NGX_ESCAPE_REFRESH 3 | |
165 #define NGX_ESCAPE_MEMCACHED 4 | |
166 #define NGX_ESCAPE_MAIL_AUTH 5 | |
601 | 167 |
1593 | 168 #define NGX_UNESCAPE_URI 1 |
169 #define NGX_UNESCAPE_REDIRECT 2 | |
461 | 170 |
485 | 171 uintptr_t ngx_escape_uri(u_char *dst, u_char *src, size_t size, |
493 | 172 ngx_uint_t type); |
601 | 173 void ngx_unescape_uri(u_char **dst, u_char **src, size_t size, ngx_uint_t type); |
1544 | 174 uintptr_t ngx_escape_html(u_char *dst, u_char *src, size_t size); |
175 | |
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176 |
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177 |
1208 | 178 void ngx_sort(void *base, size_t n, size_t size, |
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179 ngx_int_t (*cmp)(const void *, const void *)); |
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180 #define ngx_qsort qsort |
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182 |
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183 #define ngx_value_helper(n) #n |
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184 #define ngx_value(n) ngx_value_helper(n) |
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185 |
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186 |
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187 #endif /* _NGX_STRING_H_INCLUDED_ */ |