73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/*
|
|
* rest-util.c
|
|
*
|
|
* Created on: Oct 26, 2010
|
|
* Author: dogan
|
|
*/
|
|
|
|
#include <stddef.h> /*for size_t*/
|
|
#include <ctype.h> /*for isxdigit*/
|
|
#include <string.h>
|
|
|
|
/*Copied from mangoose http server*/
|
|
size_t
|
|
decode(const char *src, size_t srclen, char *dst, size_t dstlen, int is_form)
|
|
{
|
|
size_t i, j;
|
|
int a, b;
|
|
#define HEXTOI(x) (isdigit(x) ? x - '0' : x - 'W')
|
|
|
|
for (i = j = 0; i < srclen && j < dstlen - 1; i++, j++) {
|
|
if (src[i] == '%' &&
|
|
isxdigit(* (unsigned char *) (src + i + 1)) &&
|
|
isxdigit(* (unsigned char *) (src + i + 2))) {
|
|
a = tolower(* (unsigned char *) (src + i + 1));
|
|
b = tolower(* (unsigned char *) (src + i + 2));
|
|
dst[j] = ((HEXTOI(a) << 4) | HEXTOI(b)) & 0xff;
|
|
i += 2;
|
|
} else if (is_form && src[i] == '+') {
|
|
dst[j] = ' ';
|
|
} else {
|
|
dst[j] = src[i];
|
|
}
|
|
}
|
|
|
|
dst[j] = '\0'; /* Null-terminate the destination */
|
|
|
|
return ( i == srclen );
|
|
}
|
|
|
|
/*Copied from mangoose http server*/
|
|
int
|
|
get_variable(const char *name, const char *buffer, size_t buflen, char* output, size_t output_len, int decode_type)
|
|
{
|
|
const char *start = NULL, *end = NULL, *end_of_value;
|
|
size_t var_len = 0;
|
|
|
|
/*initialize the output buffer first*/
|
|
*output = 0;
|
|
|
|
var_len = strlen(name);
|
|
end = buffer + buflen;
|
|
|
|
for (start = buffer; start + var_len < end; start++)
|
|
{
|
|
if ((start == buffer || start[-1] == '&') && start[var_len] == '=' &&
|
|
! strncmp(name, start, var_len))
|
|
{
|
|
/* Point p to variable value */
|
|
start += var_len + 1;
|
|
|
|
/* Point s to the end of the value */
|
|
end_of_value = (const char *) memchr(start, '&', end - start);
|
|
if (end_of_value == NULL)
|
|
{
|
|
end_of_value = end;
|
|
}
|
|
|
|
return decode(start, end_of_value - start, output, output_len, decode_type);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|