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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#define F "fichier"
typedef struct{
unsigned char ip[4];
}t_ip;
typedef struct{
t_ip *tabIP;
size_t nbIP;
size_t sizeIP;
}t_route;
static void purge(FILE *fp)
{
int c;
while ((c = fgetc(fp)) != '\n' && c != EOF)
{
}
}
static void clean (char *s, FILE *fp)
{
char *p = strchr (s, '\n');
if (p != NULL)
{
*p = 0;
}
else
{
purge (fp);
}
}
int main()
{
FILE *fp = fopen(F, "r");
t_route trace;
trace.tabIP = NULL;
trace.nbIP = 0;
trace.sizeIP = 0;
int j = 0;
if (fp != NULL)
{
char line[BUFSIZ];
while (fgets(line, sizeof line, fp) != NULL)
{
clean(line, fp);
char *p = strtok(line, " ");
if (p != NULL)
{
p = strtok(NULL, " ");
if (p != NULL)
{
if(trace.nbIP == trace.sizeIP)
{
trace.sizeIP += 1;
trace.tabIP = realloc(trace.tabIP, (trace.sizeIP) * sizeof(*trace.tabIP));
if (trace.tabIP == NULL)
{
perror("erreur allocation");
exit(1);
}
}
char ip[4];
sscanf(p, "%d.%d.%d.%d", ip, ip + 1, ip + 2, ip + 3);
trace.tabIP[trace.nbIP].ip[0] = ip[0];
trace.tabIP[trace.nbIP].ip[1] = ip[1];
trace.tabIP[trace.nbIP].ip[2] = ip[2];
trace.tabIP[trace.nbIP].ip[3] = ip[3];
trace.nbIP++;
}
else
{
printf ("format error\n");
break;
}
}
else
{
printf ("format error\n");
break;
}
}
fclose (fp), fp = NULL;
}
else
{
perror (F);
}
for(j=0; j<trace.sizeIP; j++)
{
printf("%d.%d.%d.%d ",trace.tabIP[j].ip[0],trace.tabIP[j].ip[1],
trace.tabIP[j].ip[2],trace.tabIP[j].ip[3]);
printf("\n");
}
return 0;
} |
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