/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> 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 u_char *ngx_sprintf_str(u_char *buf, u_char *last, u_char *src, size_t len, ngx_uint_t hexadecimal); 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) { … } size_t ngx_strnlen(u_char *p, size_t n) { … } u_char * ngx_cpystrn(u_char *dst, u_char *src, size_t n) { … } u_char * ngx_pstrdup(ngx_pool_t *pool, ngx_str_t *src) { … } /* * 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 * * %[x|X]V ngx_str_t * * %[x|X]v ngx_variable_value_t * * %[x|X]s null-terminated string * %*[x|X]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 * ngx_cdecl ngx_snprintf(u_char *buf, size_t max, const char *fmt, ...) { … } u_char * ngx_cdecl ngx_slprintf(u_char *buf, u_char *last, const char *fmt, ...) { … } u_char * ngx_vslprintf(u_char *buf, u_char *last, const char *fmt, va_list args) { … } 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 u_char * ngx_sprintf_str(u_char *buf, u_char *last, u_char *src, size_t len, ngx_uint_t hexadecimal) { … } /* * 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_int_t ngx_strncasecmp(u_char *s1, u_char *s2, size_t n) { … } u_char * ngx_strnstr(u_char *s1, char *s2, size_t len) { … } /* * 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 * ngx_strcasestrn(u_char *s1, char *s2, size_t n) { … } /* * 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_int_t ngx_rstrncmp(u_char *s1, u_char *s2, size_t n) { … } ngx_int_t ngx_rstrncasecmp(u_char *s1, u_char *s2, size_t n) { … } ngx_int_t ngx_memn2cmp(u_char *s1, u_char *s2, size_t n1, size_t n2) { … } ngx_int_t ngx_dns_strcmp(u_char *s1, u_char *s2) { … } ngx_int_t ngx_filename_cmp(u_char *s1, u_char *s2, size_t n) { … } ngx_int_t ngx_atoi(u_char *line, size_t n) { … } /* 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) { … } ssize_t ngx_atosz(u_char *line, size_t n) { … } off_t ngx_atoof(u_char *line, size_t n) { … } time_t ngx_atotm(u_char *line, size_t n) { … } ngx_int_t ngx_hextoi(u_char *line, size_t n) { … } u_char * ngx_hex_dump(u_char *dst, u_char *src, size_t len) { … } void ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src) { … } void ngx_encode_base64url(ngx_str_t *dst, ngx_str_t *src) { … } static void ngx_encode_base64_internal(ngx_str_t *dst, ngx_str_t *src, const u_char *basis, ngx_uint_t padding) { … } ngx_int_t ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src) { … } ngx_int_t ngx_decode_base64url(ngx_str_t *dst, ngx_str_t *src) { … } static ngx_int_t ngx_decode_base64_internal(ngx_str_t *dst, ngx_str_t *src, const u_char *basis) { … } /* * 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 ngx_utf8_length(u_char *p, size_t n) { … } u_char * ngx_utf8_cpystrn(u_char *dst, u_char *src, size_t n, size_t len) { … } uintptr_t ngx_escape_uri(u_char *dst, u_char *src, size_t size, ngx_uint_t type) { … } void ngx_unescape_uri(u_char **dst, u_char **src, size_t size, ngx_uint_t type) { … } uintptr_t ngx_escape_html(u_char *dst, u_char *src, size_t size) { … } uintptr_t ngx_escape_json(u_char *dst, u_char *src, size_t size) { … } 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 * ngx_str_rbtree_lookup(ngx_rbtree_t *rbtree, ngx_str_t *val, uint32_t hash) { … } /* 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 *)) { … } void ngx_explicit_memzero(void *buf, size_t n) { … } #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
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