longip ... probleme

Réponse acceptée !
Faut aussi corriger deux/trois trucs...

#include <stdlib.h> #include <stdio.h> #include <string.h> int main(void) { char ip[16]; strcpy(ip,"127.1.2.3"); char *ip1 = strtok(ip,"."); char *ip2 = strtok(0,"."); char *ip3 = strtok(0,"."); char *ip4 = strtok(0,"."); unsigned long ip5 = (unsigned long) atoi(ip1)*256*256*256; unsigned long ip6 = (unsigned long) atoi(ip2)*256*256; unsigned long ip7 = (unsigned long) atoi(ip3)*256; unsigned long ip8 = (unsigned long) atoi(ip4); printf("%lu\n", ip5 + ip6 + ip7 + ip8); return 0; }

Réponse acceptée !
Salut,
voici deux fonctions qui font la meme chose (en mieux je pense):

// avec atoi (bof)
unsigned long _ip(char * ip)
{
BYTE tmp[4];
char * c = ip;
for(int i = 0; i < 4; i++)
{
tmp[i] = atoi(c);
while(*c != '.' && *c) c++; c++;
}
return *((unsigned long*)tmp);
}


// sans atoi
unsigned long __ip(char * ip)
{
BYTE tmp[4];
char * c = ip;
for(BYTE *b = tmp, *f = b + 4; b < f; b++)
{
*b = 0;
while(*c != '.' && *c)
{
*b *= 10;
*b += (*c++ - '0');
}
c++;
}
return *((unsigned long*)tmp);
}