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#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include "Csnprintf.h"
gid_t *
Cdecode_groups(char *groups, int *nbgids)
{
char *dp;
gid_t *gids;
int i = 0;
char *p;
p = groups;
while (*p) {
if (*p == ',') i++;
p++;
}
i++;
if ((gids = calloc (i, sizeof(gid_t))) == NULL)
return (NULL);
*nbgids = i;
i = 0;
p = groups;
while (1) {
gids[i++] = strtol (p, &dp, 10);
if (*dp == '\0') break;
p = dp + 1;
}
return (gids);
}
char *
Cencode_groups(int nbgids, gid_t *gids, char *groups, size_t bufsize)
{
int i;
int n;
char *p;
p = groups;
for (i = 0; i < nbgids; i++) {
if (p != groups) {
if (1 >= bufsize - (p - groups))
return (NULL);
*p++ = ',';
}
n = Csnprintf (p, bufsize - (p - groups), "%d", gids[i]);
if (n >= bufsize - (p - groups))
return (NULL);
p += n;
}
return (groups);
}
Cgroupmatch(gid_t gid, int nbgids, gid_t *gids)
{
int i;
for (i = 0; i < nbgids; i++) {
if (gid == gids[i])
return (1);
}
return (0);
}
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