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/*
* Copyright (C) Igor Sysoev
*/
#ifndef _NGX_STRING_H_INCLUDED_
#define _NGX_STRING_H_INCLUDED_
#include <ngx_config.h>
#include <ngx_core.h>
typedef struct {
size_t len;
u_char *data;
} ngx_str_t;
#define ngx_string(str) { sizeof(str) - 1, (u_char *) str }
#define ngx_null_string { 0, NULL }
#define ngx_tolower(c) (u_char) ((c >= 'A' && c <= 'Z') ? (c | 0x20) : c)
#define ngx_toupper(c) (u_char) ((c >= 'a' && c <= 'z') ? (c & ~0x20) : c)
#if (NGX_WIN32)
#define ngx_strncasecmp(s1, s2, n) \
strnicmp((const char *) s1, (const char *) s2, n)
#define ngx_strcasecmp(s1, s2) \
stricmp((const char *) s1, (const char *) s2)
#else
#define ngx_strncasecmp(s1, s2, n) \
strncasecmp((const char *) s1, (const char *) s2, n)
#define ngx_strcasecmp(s1, s2) \
strcasecmp((const char *) s1, (const char *) s2)
#endif
#define ngx_strncmp(s1, s2, n) strncmp((const char *) s1, (const char *) s2, n)
/* msvc and icc7 compile strcmp() to inline loop */
#define ngx_strcmp(s1, s2) strcmp((const char *) s1, (const char *) s2)
#define ngx_strstr(s1, s2) strstr((const char *) s1, (const char *) s2)
#define ngx_strlen(s) strlen((const char *) s)
/*
* msvc and icc7 compile memset() to the inline "rep stos"
* while ZeroMemory() and bzero() are the calls.
* icc7 may also inline several mov's of a zeroed register for small blocks.
*/
#define ngx_memzero(buf, n) (void) memset(buf, 0, n)
#define ngx_memset(buf, c, n) (void) memset(buf, c, n)
/*
* gcc3, msvc, and icc7 compile memcpy() to the inline "rep movs".
* gcc3 compiles memcpy(d, s, 4) to the inline "mov"es.
* icc8 compile memcpy(d, s, 4) to the inline "mov"es or XMM moves.
*/
#define ngx_memcpy(dst, src, n) (void) memcpy(dst, src, n)
#define ngx_cpymem(dst, src, n) ((u_char *) memcpy(dst, src, n)) + (n)
#if ( __INTEL_COMPILER >= 800 )
/*
* the simple inline cycle copies the variable length strings up to 16
* bytes faster than icc8 autodetecting _intel_fast_memcpy()
*/
static ngx_inline u_char *
ngx_copy(u_char *dst, u_char *src, size_t len)
{
if (len < 17) {
while (len) {
*dst++ = *src++;
len--;
}
return dst;
} else {
return ngx_cpymem(dst, src, len);
}
}
#else
#define ngx_copy ngx_cpymem
#endif
/* msvc and icc7 compile memcmp() to the inline loop */
#define ngx_memcmp memcmp
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);
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_vsnprintf(u_char *buf, size_t max, const char *fmt, va_list args);
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_atoi(u_char *line, size_t n);
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);
void ngx_md5_text(u_char *text, u_char *md5);
#define ngx_base64_encoded_length(len) (((len + 2) / 3) * 4)
#define ngx_base64_decoded_length(len) (((len + 3) / 4) * 3)
void ngx_encode_base64(ngx_str_t *dst, ngx_str_t *src);
ngx_int_t ngx_decode_base64(ngx_str_t *dst, ngx_str_t *src);
size_t ngx_utf_length(ngx_str_t *utf);
u_char * ngx_utf_cpystrn(u_char *dst, u_char *src, size_t n);
#define NGX_ESCAPE_URI 0
#define NGX_ESCAPE_ARGS 1
#define NGX_ESCAPE_HTML 2
uintptr_t ngx_escape_uri(u_char *dst, u_char *src, size_t size,
ngx_uint_t type);
#define ngx_qsort qsort
#define ngx_value_helper(n) #n
#define ngx_value(n) ngx_value_helper(n)
#endif /* _NGX_STRING_H_INCLUDED_ */
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