| 갑자기 필요해졌는데 –_-, 괜찮은 소스코드가 없었다. 그렇다고 내가 만든건 아니고 qDecoder 에서 decode 부분을 –_-( qDecoder에서는 한글이 인코딩이 안되네) 또 어디에서(어디더라, ) encode 부분을 가져와서 간단하게 인터페이스만 살짝 바꾼 버전이다. 고로 –_- 아무것도 내가 한건 없다라고 보면 될듯 MAC에서는 NSString 이 기본적으로 해주는데, c 쪽은 다 직접 해줘야 한다라는 –_- #include <stdio.h>
#include <string.h>
#include <memory.h>
static const unsigned char hexchars[] = "0123456789ABCDEF"; char *url_encode(char const *s, int len, int *new_length)
{
register unsigned char c;
unsigned char *to, *start;
unsigned char const *from, *end; from = s;
end = s + len;
start = to = (unsigned char *) malloc(3 * len + 1); while (from < end) {
c = *from++;
if (c == ' ') {
*to++ = '+';
#ifndef CHARSET_EBCDIC
} else if ((c < '0' && c != '-' && c != '.') ||
(c < 'A' && c > '9') ||
(c > 'Z' && c < 'a' && c != '_') ||
(c > 'z')) {
to[0] = '%';
to[1] = hexchars[c >> 4];
to[2] = hexchars[c & 15];
to += 3;
#else /*CHARSET_EBCDIC*/
} else if (!isalnum(c) && strchr("_-.", c) == NULL) {
/* Allow only alphanumeric chars and '_', '-', '.'; escape the rest */
to[0] = '%';
to[1] = hexchars[os_toascii[c] >> 4];
to[2] = hexchars[os_toascii[c] & 15];
to += 3; #endif /*CHARSET_EBCDIC*/
} else {
*to++ = c;
}
} *to = 0;
if (new_length) {
*new_length = to - start;
} return (char *) start;
} /**
* Decode URL encoded string.
*
* @param str a pointer of URL encoded string.
*
* @return the length of bytes stored in str in case of successful, otherwise returns NULL
*
* @note
* This modify str directly. And the 'str' is always terminated by NULL character.
*/
static char _x2c(char hex_up, char hex_low)
{
char digit; digit = 16 * (hex_up >= 'A'
? ((hex_up & 0xdf) - 'A') + 10 : (hex_up - '0'));
digit += (hex_low >= 'A'
? ((hex_low & 0xdf) - 'A') + 10 : (hex_low - '0'));
return (digit);
} int url_decode(char *str, char *target, int size) {
char *pEncPt, *pBinPt, *pTarPt; if (str == NULL || target == NULL || size == 0 ) {
return 0;
} pBinPt = str;
pTarPt = target; for(pEncPt = str; *pEncPt != '\0'; pEncPt++) {
if( (pTarPt - target) >= size )
{
pTarPt--;
break;
} switch (*pEncPt) {
case '+': {
*pTarPt++ = ' ';
break;
}
case '%': {
*pTarPt++ = _x2c(*(pEncPt + 1), *(pEncPt + 2));
pEncPt += 2;
break;
}
default: {
*pTarPt++ = *pEncPt;
break;
}
}
}
*pTarPt = '\0'; return (pTarPt - target);
} int main()
{
int i, n;
unsigned char dest[256] = {0x00,};
unsigned char test[256] = {0x00,};
char *pTarget;
unsigned char *str[] = {
"안녕하세요",
"hello world 안녕하세요\n",
"hello\%20world\%20\%be\%c8",
"A B C D E F G",
NULL
}; int count = 0;
char *pDest = str[count];
while( NULL != pDest){
printf("Original : %d %s\r\n", strlen(pDest), pDest);
pTarget = url_encode(pDest, strlen(pDest), NULL);
printf("encode : %d %s\n", strlen(pTarget), pTarget); n = url_decode(pTarget, test, 256);
test[n] = 0;
printf("decode : %d %s\n", n, test); free(pTarget);
count++;
pDest = str[count];
} return 0;
} |
