I want to make this program run on solaris machine .... what changes can i do .....

Posted on 2004-08-08
Last Modified: 2013-12-05
Hi guys,

 The following program is for getting credentials......

 I have some problems facing when run on solaris machine ......

Program is following :---->

#include   <stdio.h>
#include   <stdlib.h>
#include   <sys/socket.h>
#include   <errno.h>
#include   <sys/types.h>
#include   <sys/uio.h>
#include   <signal.h>
#include   <time.h>
#include   <sys/types.h>
#include   <stdlib.h>
#include   <pthread.h>
#include   <sys/param.h>
#include   <sys/cred.h>

ssize_t recv_cred(int, void *, size_t, struct cred *);

  int             fd[2], on, n;
  char            buf[100];
  struct cred    cred;
  if (socketpair(AF_UNIX, SOCK_STREAM, 0, fd) < 0)
    perror("Socketpair Error");
  /* must set the socket option on the *receiving* socket */
  on = 1;
  setsockopt(fd[1], 0, LOCAL_CREDS, &on, sizeof(on));
  write(fd[0], "hello, world\n", 13);
  if ( (n = recv_cred(fd[1], buf, sizeof(buf), &cred)) < 0)
    perror("Recv_Cred Error");
  else if (n == 0)
    perror("Recv_Cred, Unexpected EOF");
  buf[n] = 0;                     /* null terminate */
  printf("data: %s", buf);
  if (cred.cr_ngroups == 0)
    printf("[No CREDENTIALS Returned]\n");
      printf(" Real User ID = %d\n", cred.cr_ruid);
      printf(" Real Group ID = %d\n", cred.cr_rgid);
      //      printf(" Login Name = %-*s\n", MAXLOGNAME, cred.cr_login);
      printf(" Effective User ID = %d\n", cred.cr_uid);
      printf(" Effective Group ID = %d\n", cred.cr_gid);
      printf(" %d Supplementary Groups:", cred.cr_ngroups - 1);
      for (n = 1; n < cred.cr_ngroups; n++)   /* [0] is the egid */
      printf(" %d", cred.cr_groups[n]);

#define CONTROL_LEN     (sizeof(struct cmsghdr) + sizeof(struct cred))

recv_cred(int fd, void *ptr, size_t nbytes, struct cred *credptr)
  struct msghdr   msg;
  struct iovec    iov[1];
  char            control[CONTROL_LEN + 20];
  int             n;
  msg.msg_name = NULL;
  msg.msg_namelen = 0;
  iov[0].iov_base = ptr;
  iov[0].iov_len = nbytes;
  msg.msg_iov = iov;
  msg.msg_iovlen = 1;

  msg.msg_control = control;
  msg.msg_controllen = sizeof(control);
  msg.msg_flags = 0;

  if ( (n = recvmsg(fd, &msg, 0)) < 0)
  credptr->cr_ngroups = 0;       /* indicates no credentials returned */
  if (credptr && msg.msg_controllen > 0)
      struct cmsghdr  *cmptr = (struct cmsghdr *) control;
      if (cmptr->cmsg_len != sizeof(struct cmsghdr) + sizeof(struct cred))
      err_quit("control length = %d", cmptr->cmsg_len);
      if (cmptr->cmsg_level != SOL_SOCKET)
      err_quit("control level != SOL_SOCKET");
      if (cmptr->cmsg_type != SCM_CREDS)
      err_quit("control type != SCM_CREDS");
      memcpy(credptr, CMSG_DATA(cmptr), sizeof(struct cred));


To compile on soalris :

 cc -o tfcred02 tfcred02.c -lsocket -lnsl -lrt

To Run :


Am getting some errors:

They are following :---->

[ab1221@eagles ~/AdvNetProg/Assign3]$ cc -o tfcred02 tfcred02.c -lsocket -lnsl -lrt

tfcred02.c: In function `main':
tfcred02.c:30: error: `LOCAL_CREDS' undeclared (first use in this function)
tfcred02.c:30: error: (Each undeclared identifier is reported only once
tfcred02.c:30: error: for each function it appears in.)
tfcred02.c: In function `recv_cred':
tfcred02.c:86: error: structure has no member named `msg_control'
tfcred02.c:87: error: structure has no member named `msg_controllen'
tfcred02.c:88: error: structure has no member named `msg_flags'
tfcred02.c:95: error: structure has no member named `msg_controllen'
tfcred02.c:105: error: `SCM_CREDS' undeclared (first use in this function)
tfcred02.c:108: warning: passing arg 2 of `memcpy' makes pointer from integer without a cast

[ab1221@eagles ~/AdvNetProg/Assign3]$

Pls help me in this program..


Question by:amankhan
1 Comment

Accepted Solution

realrael earned 500 total points
Comment Utility

did you write this on an windows pc? basically, i think you're using this structure that goes fine with a windows box, but not compatible with solaris. for you to be able to compile this, you have to use the exact structure that's being used in unix. you could look at the source files and see what the actual structures are. from there you could figure out what adjustments you have to do in code. - rael

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