Go Premium for a chance to win a PS4. Enter to Win


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

Posted on 2004-08-08
Medium Priority
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 1000 total points
ID: 11749583

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

Featured Post

Important Lessons on Recovering from Petya

In their most recent webinar, Skyport Systems explores ways to isolate and protect critical databases to keep the core of your company safe from harm.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

An Outlet in Cocoa is a persistent reference to a GUI control; it connects a property (a variable) to a control.  For example, it is common to create an Outlet for the text field GUI control and change the text that appears in this field via that Ou…
Preface I don't like visual development tools that are supposed to write a program for me. Even if it is Xcode and I can use Interface Builder. Yes, it is a perfect tool and has helped me a lot, mainly, in the beginning, when my programs were small…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
The goal of this video is to provide viewers with basic examples to understand opening and writing to files in the C programming language.
Suggested Courses

972 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question