Re: GNet lib

#include <stdio.h>
#include <string.h>
#include <alloca.h>
#define METHOD_SIZE (sizeof("http://") - 1)
int get_host(const char *url, unsigned int len, char **res, unsigned int size)
{
 unsigned int i;
 /* chaine vide */
 if ( 0 > len )
 return 0;
 /* chaine ne contenant meme pas la methode ... */
 if ( METHOD_SIZE > len )
 return 0;
 for ( i = METHOD_SIZE; i < len; i++ ) {
 if ( '/' == url[i] )
 break;
 }
 /* pas assez de memoire pour contenir le resultat */
 if ( size < len )
 return -1;
 len = i - METHOD_SIZE;
 memcpy(*res, &url[METHOD_SIZE], len );
 return len;
}
int main(int ac, char *av[])
{
 char *host = 0;
 int len = 0;
 if ( ac < 2 )
 return 1;
 host = (char *) alloca(32);
 len = get_host(av[1], strlen(av[1]), &host, 32);
 if ( 0 < len )
 printf("host: %.*s\n", len, host);
 else
 printf("ret: %d\n", len);
 return 0;
}