Mercurial > hg > nginx-quic
annotate src/core/ngx_string.h @ 4553:3dd8a403faa1
Fixed off-by-one in xslt parameter parsing.
The problem was introduced in 0.7.44 (r2589) during conversion to complex
values. Previously string.len included space for terminating NUL, but
with complex values it doesn't.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Thu, 22 Mar 2012 10:43:33 +0000 |
parents | d620f497c50f |
children | 814541b2ec23 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
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5 */ |
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8 #ifndef _NGX_STRING_H_INCLUDED_ |
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9 #define _NGX_STRING_H_INCLUDED_ |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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16 typedef struct { |
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17 size_t len; |
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18 u_char *data; |
19
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19 } ngx_str_t; |
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649 | 22 typedef struct { |
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23 ngx_str_t key; |
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24 ngx_str_t value; |
649 | 25 } ngx_keyval_t; |
26 | |
27 | |
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28 typedef struct { |
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29 unsigned len:28; |
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30 |
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31 unsigned valid:1; |
1565 | 32 unsigned no_cacheable:1; |
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33 unsigned not_found:1; |
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34 unsigned escape:1; |
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35 |
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36 u_char *data; |
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37 } ngx_variable_value_t; |
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38 |
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39 |
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40 #define ngx_string(str) { sizeof(str) - 1, (u_char *) str } |
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41 #define ngx_null_string { 0, NULL } |
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42 #define ngx_str_set(str, text) \ |
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43 (str)->len = sizeof(text) - 1; (str)->data = (u_char *) text |
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44 #define ngx_str_null(str) (str)->len = 0; (str)->data = NULL |
477 | 45 |
46 | |
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47 #define ngx_tolower(c) (u_char) ((c >= 'A' && c <= 'Z') ? (c | 0x20) : c) |
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48 #define ngx_toupper(c) (u_char) ((c >= 'a' && c <= 'z') ? (c & ~0x20) : c) |
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49 |
2135 | 50 void ngx_strlow(u_char *dst, u_char *src, size_t n); |
51 | |
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52 |
461 | 53 #define ngx_strncmp(s1, s2, n) strncmp((const char *) s1, (const char *) s2, n) |
54 | |
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573 | 56 /* msvc and icc7 compile strcmp() to inline loop */ |
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57 #define ngx_strcmp(s1, s2) strcmp((const char *) s1, (const char *) s2) |
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461 | 59 |
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60 #define ngx_strstr(s1, s2) strstr((const char *) s1, (const char *) s2) |
2201 | 61 #define ngx_strlen(s) strlen((const char *) s) |
62 | |
1157 | 63 #define ngx_strchr(s1, c) strchr((const char *) s1, (int) c) |
2201 | 64 |
65 static ngx_inline u_char * | |
66 ngx_strlchr(u_char *p, u_char *last, u_char c) | |
67 { | |
68 while (p < last) { | |
69 | |
70 if (*p == c) { | |
71 return p; | |
72 } | |
73 | |
74 p++; | |
75 } | |
76 | |
77 return NULL; | |
78 } | |
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79 |
461 | 80 |
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81 /* |
573 | 82 * msvc and icc7 compile memset() to the inline "rep stos" |
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83 * while ZeroMemory() and bzero() are the calls. |
573 | 84 * icc7 may also inline several mov's of a zeroed register for small blocks. |
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85 */ |
515 | 86 #define ngx_memzero(buf, n) (void) memset(buf, 0, n) |
87 #define ngx_memset(buf, c, n) (void) memset(buf, c, n) | |
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88 |
461 | 89 |
583 | 90 #if (NGX_MEMCPY_LIMIT) |
91 | |
92 void *ngx_memcpy(void *dst, void *src, size_t n); | |
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93 #define ngx_cpymem(dst, src, n) (((u_char *) ngx_memcpy(dst, src, n)) + (n)) |
583 | 94 |
95 #else | |
96 | |
573 | 97 /* |
98 * gcc3, msvc, and icc7 compile memcpy() to the inline "rep movs". | |
99 * gcc3 compiles memcpy(d, s, 4) to the inline "mov"es. | |
100 * icc8 compile memcpy(d, s, 4) to the inline "mov"es or XMM moves. | |
101 */ | |
515 | 102 #define ngx_memcpy(dst, src, n) (void) memcpy(dst, src, n) |
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103 #define ngx_cpymem(dst, src, n) (((u_char *) memcpy(dst, src, n)) + (n)) |
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104 |
583 | 105 #endif |
106 | |
461 | 107 |
573 | 108 #if ( __INTEL_COMPILER >= 800 ) |
109 | |
110 /* | |
111 * the simple inline cycle copies the variable length strings up to 16 | |
112 * bytes faster than icc8 autodetecting _intel_fast_memcpy() | |
113 */ | |
114 | |
115 static ngx_inline u_char * | |
116 ngx_copy(u_char *dst, u_char *src, size_t len) | |
117 { | |
118 if (len < 17) { | |
119 | |
120 while (len) { | |
121 *dst++ = *src++; | |
122 len--; | |
123 } | |
124 | |
125 return dst; | |
126 | |
127 } else { | |
128 return ngx_cpymem(dst, src, len); | |
129 } | |
130 } | |
131 | |
132 #else | |
133 | |
134 #define ngx_copy ngx_cpymem | |
135 | |
136 #endif | |
137 | |
138 | |
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139 #define ngx_memmove(dst, src, n) (void) memmove(dst, src, n) |
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140 #define ngx_movemem(dst, src, n) (((u_char *) memmove(dst, src, n)) + (n)) |
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141 |
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142 |
573 | 143 /* msvc and icc7 compile memcmp() to the inline loop */ |
1648 | 144 #define ngx_memcmp(s1, s2, n) memcmp((const char *) s1, (const char *) s2, n) |
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461 | 146 |
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147 u_char *ngx_cpystrn(u_char *dst, u_char *src, size_t n); |
485 | 148 u_char *ngx_pstrdup(ngx_pool_t *pool, ngx_str_t *src); |
503 | 149 u_char * ngx_cdecl ngx_sprintf(u_char *buf, const char *fmt, ...); |
150 u_char * ngx_cdecl ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...); | |
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151 u_char * ngx_cdecl ngx_slprintf(u_char *buf, u_char *last, const char *fmt, |
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152 ...); |
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153 u_char *ngx_vslprintf(u_char *buf, u_char *last, const char *fmt, va_list args); |
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154 #define ngx_vsnprintf(buf, max, fmt, args) \ |
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155 ngx_vslprintf(buf, buf + (max), fmt, args) |
455 | 156 |
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157 ngx_int_t ngx_strcasecmp(u_char *s1, u_char *s2); |
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158 ngx_int_t ngx_strncasecmp(u_char *s1, u_char *s2, size_t n); |
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159 |
1552 | 160 u_char *ngx_strnstr(u_char *s1, char *s2, size_t n); |
161 | |
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162 u_char *ngx_strstrn(u_char *s1, char *s2, size_t n); |
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163 u_char *ngx_strcasestrn(u_char *s1, char *s2, size_t n); |
2668 | 164 u_char *ngx_strlcasestrn(u_char *s1, u_char *last, u_char *s2, size_t n); |
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165 |
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166 ngx_int_t ngx_rstrncmp(u_char *s1, u_char *s2, size_t n); |
455 | 167 ngx_int_t ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n); |
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168 ngx_int_t ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2); |
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169 ngx_int_t ngx_dns_strcmp(u_char *s1, u_char *s2); |
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170 |
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171 ngx_int_t ngx_atoi(u_char *line, size_t n); |
3512 | 172 ngx_int_t ngx_atofp(u_char *line, size_t n, size_t point); |
501 | 173 ssize_t ngx_atosz(u_char *line, size_t n); |
174 off_t ngx_atoof(u_char *line, size_t n); | |
175 time_t ngx_atotm(u_char *line, size_t n); | |
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176 ngx_int_t ngx_hextoi(u_char *line, size_t n); |
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177 |
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178 u_char *ngx_hex_dump(u_char *dst, u_char *src, size_t len); |
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179 |
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180 |
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181 #define ngx_base64_encoded_length(len) (((len + 2) / 3) * 4) |
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182 #define ngx_base64_decoded_length(len) (((len + 3) / 4) * 3) |
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183 |
452 | 184 void ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src); |
185 ngx_int_t ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src); | |
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186 ngx_int_t ngx_decode_base64url(ngx_str_t *dst, ngx_str_t *src); |
461 | 187 |
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188 uint32_t ngx_utf8_decode(u_char **p, size_t n); |
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189 size_t ngx_utf8_length(u_char *p, size_t n); |
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190 u_char *ngx_utf8_cpystrn(u_char *dst, u_char *src, size_t n, size_t len); |
527 | 191 |
461 | 192 |
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193 #define NGX_ESCAPE_URI 0 |
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194 #define NGX_ESCAPE_ARGS 1 |
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195 #define NGX_ESCAPE_URI_COMPONENT 2 |
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196 #define NGX_ESCAPE_HTML 3 |
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197 #define NGX_ESCAPE_REFRESH 4 |
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198 #define NGX_ESCAPE_MEMCACHED 5 |
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199 #define NGX_ESCAPE_MAIL_AUTH 6 |
601 | 200 |
1593 | 201 #define NGX_UNESCAPE_URI 1 |
202 #define NGX_UNESCAPE_REDIRECT 2 | |
461 | 203 |
485 | 204 uintptr_t ngx_escape_uri(u_char *dst, u_char *src, size_t size, |
493 | 205 ngx_uint_t type); |
601 | 206 void ngx_unescape_uri(u_char **dst, u_char **src, size_t size, ngx_uint_t type); |
1544 | 207 uintptr_t ngx_escape_html(u_char *dst, u_char *src, size_t size); |
208 | |
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209 |
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210 typedef struct { |
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211 ngx_rbtree_node_t node; |
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212 ngx_str_t str; |
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213 } ngx_str_node_t; |
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214 |
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215 |
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216 void ngx_str_rbtree_insert_value(ngx_rbtree_node_t *temp, |
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217 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); |
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218 ngx_str_node_t *ngx_str_rbtree_lookup(ngx_rbtree_t *rbtree, ngx_str_t *name, |
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219 uint32_t hash); |
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220 |
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221 |
1208 | 222 void ngx_sort(void *base, size_t n, size_t size, |
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223 ngx_int_t (*cmp)(const void *, const void *)); |
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224 #define ngx_qsort qsort |
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225 |
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226 |
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227 #define ngx_value_helper(n) #n |
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228 #define ngx_value(n) ngx_value_helper(n) |
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229 |
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230 |
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231 #endif /* _NGX_STRING_H_INCLUDED_ */ |