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#include <pwd.h>
#include <grp.h>
#include <unistd.h>
#include <stdio.h>
#include "bonnie.h"
int bon_setugid(CPCCHAR userName, CPCCHAR groupName, bool quiet)
{
int id = 0;
uid_t userId = 0;
gid_t groupId = 0;
bool setGroup = false;
struct passwd *pw;
struct group *gr;
if(userName)
{
if(sscanf(userName, "%d", &id) == 1)
{
userId = uid_t(id);
pw = getpwuid(userId);
if(pw)
{
groupId = pw->pw_gid;
setGroup = true;
}
else
{
gr = getgrnam("nogroup");
if(gr)
{
groupId = gr->gr_gid;
setGroup = true;
}
}
}
else
{
pw = getpwnam(userName);
if(!pw)
{
fprintf(stderr, "Can't find user %s\n", userName);
return 1;
}
userId = pw->pw_uid;
groupId = pw->pw_gid;
setGroup = true;
}
}
if(groupName)
{
if(sscanf(groupName, "%d", &id) == 1)
{
groupId = gid_t(id);
setGroup = true;
}
else
{
gr = getgrnam(groupName);
if(!gr)
{
fprintf(stderr, "Can't find group %s\n", groupName);
return 1;
}
groupId = gr->gr_gid;
setGroup = true;
}
}
if(setGroup)
{
if(setgid(groupId))
{
fprintf(stderr, "Can't set gid to %d.\n", int(groupId));
return 1;
}
}
if(setuid(userId))
{
fprintf(stderr, "Can't set uid to %d.\n", int(userId));
return 1;
}
if(!quiet)
fprintf(stderr, "Using uid:%d, gid:%d.\n", int(getuid()), int(getgid()));
return 0;
}
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