osprey/libf/pxf/pxfgetpwuid.c

Go to the documentation of this file.

/*

  Copyright (C) 2000, 2001 Silicon Graphics, Inc.  All Rights Reserved.

  This program is free software; you can redistribute it and/or modify it
  under the terms of version 2.1 of the GNU Lesser General Public License 
  as published by the Free Software Foundation.

  This program is distributed in the hope that it would be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  

  Further, this software is distributed without any warranty that it is
  free of the rightful claim of any third person regarding infringement 
  or the like.  Any license provided herein, whether implied or 
  otherwise, applies only to this software file.  Patent licenses, if
  any, provided herein do not apply to combinations of this program with 
  other software, or any other product whatsoever.  

  You should have received a copy of the GNU Lesser General Public 
  License along with this program; if not, write the Free Software 
  Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, 
  USA.

  Contact information:  Silicon Graphics, Inc., 1600 Amphitheatre Pky,
  Mountain View, CA 94043, or:

  http://www.sgi.com

  For further information regarding this notice, see:

  http://oss.sgi.com/projects/GenInfo/NoticeExplan

*/


#pragma ident "@(#) libf/pxf/pxfgetpwuid.c  92.3  10/29/99 21:41:49"


#include <fortran.h>
#include <errno.h>
#include <liberrno.h>
#include <malloc.h>
#include <pwd.h>
#include <string.h>
#ifdef  _LITTLE_ENDIAN
#include <sys/types.h>
#endif
#include "pxfstruct.h"
#include "table.h"


/*
 *  PXFGETPWUID  -- get password information using user ID
 *  (section 9.2.2 of Posix 1003.9-1992)
 *
 *  Call from Fortran:
 *
 *     SUBROUTINE PXFGETPWUID(IUID,JPASSWD,IERROR)
 *     INTEGER IUID,JPASSWD,IERROR
 *
 *  Where:
 *
 *  IUID     is an input integer variable containing the user ID for which
 *           password information is desired.
 *
 *  JPASSWD  is a output handle of type 'passwd' created with
 *           PXFSTRUCTCREATE.
 *
 *  IERROR   is an output integer variable that will contain
 *           the status:
 *
 *            zero    - PXFGETPWUID was successful.
 *
 *            nonzero - PXFGETPWUID was not successful.
 *
 *           PXFGETPWUID may return any of the following error
 *           values:
 *
 *            ENOENT If an entry matching the user ID in IUID is not found.
 * 
 *            EBADHANDLE If JPASSWD is invalid.
 *
 */


#ifdef _UNICOS
void
PXFGETPWUID(
#else
void
_PXFGETPWUID(
#endif
       _f_int *IUID,
       _f_int *JPASSWD,
       _f_int *IERROR
)
{
  char *cname;
  struct passwd *passwdsrc, passwdtemp, *cjpasswd;
  struct pxfhandle pxfhand;

  pxfhand = _pxfhandle_table_lookup(&_pxfhandle_table, *JPASSWD);
  if (pxfhand.pxfstructptr == NULL || pxfhand.pxftype != PXF_PASSWD) {
    *IERROR = EBADHANDLE;
    return;
  }
  cjpasswd = (struct passwd *)pxfhand.pxfstructptr;

  /* make call to getpwuid */
  if ((passwdsrc = getpwuid((uid_t)*IUID)) != NULL) {
    
    /* copy the structures components since static storage is used */
    /* component: pw_name (login name) */
    passwdtemp.pw_name =
      (char *) malloc((strlen(passwdsrc->pw_name)+1)*sizeof(char));
    if (passwdtemp.pw_name == NULL) {
      *IERROR = ENOMEM;
      return;
    }
    (void)strcpy(passwdtemp.pw_name, passwdsrc->pw_name);
    
    /* component: pw_uid (user ID) */
    passwdtemp.pw_uid = passwdsrc->pw_uid;
    
    /* component: pw_gid (group ID) */
    passwdtemp.pw_gid = passwdsrc->pw_gid;
    
    /* component: pw_dir (default login directory) */
    passwdtemp.pw_dir =
      (char *) malloc((strlen(passwdsrc->pw_dir)+1)*sizeof(char));
    if (passwdtemp.pw_dir == NULL) {
      *IERROR = ENOMEM;
      free(passwdtemp.pw_name);
      return;
    }
    (void)strcpy(passwdtemp.pw_dir, passwdsrc->pw_dir);
    
    /* component: pw_shell (default login shell) */
    passwdtemp.pw_shell =
      (char *) malloc((strlen(passwdsrc->pw_shell)+1)*sizeof(char));
    if (passwdtemp.pw_shell == NULL) {
      *IERROR = ENOMEM;
      free(passwdtemp.pw_name);
      free(passwdtemp.pw_dir);
      return;
    }
    (void)strcpy(passwdtemp.pw_shell, passwdsrc->pw_shell);
    
    /* components not supported in Posix 1003.9-1992, but supported in target OSes */
    /* component: pw_passwd (encrypted password) */
    passwdtemp.pw_passwd =
      (char *)malloc((strlen(passwdsrc->pw_passwd)+1)*sizeof(char));
    if (passwdtemp.pw_passwd == NULL) {
      *IERROR = ENOMEM;
      free(passwdtemp.pw_name);
      free(passwdtemp.pw_dir);
      free(passwdtemp.pw_shell);
      return;
    }
    (void)strcpy(passwdtemp.pw_passwd, passwdsrc->pw_passwd);
    
#ifndef _LITTLE_ENDIAN
    /* component: pw_age (password age) */
    passwdtemp.pw_age =
      (char *)malloc((strlen(passwdsrc->pw_age)+1)*sizeof(char));
    if (passwdtemp.pw_age == NULL) {
      *IERROR = ENOMEM;
      free(passwdtemp.pw_name);
      free(passwdtemp.pw_dir);
      free(passwdtemp.pw_shell);
      free(passwdtemp.pw_passwd);
      return;
    }
    (void)strcpy(passwdtemp.pw_age, passwdsrc->pw_age);
    
    /* component: pw_comment (comment) */
    passwdtemp.pw_comment =
      (char *)malloc((strlen(passwdsrc->pw_comment)+1)*sizeof(char));
    if (passwdtemp.pw_comment == NULL) {
      *IERROR = ENOMEM;
      free(passwdtemp.pw_name);
      free(passwdtemp.pw_dir);
      free(passwdtemp.pw_shell);
      free(passwdtemp.pw_passwd);
      free(passwdtemp.pw_age);
      return;
    }
    (void)strcpy(passwdtemp.pw_comment, passwdsrc->pw_comment);
#endif  /* not _LITTLE_ENDIAN */
    
    /* component: pw_gecos */
    passwdtemp.pw_gecos =
      (char *)malloc((strlen(passwdsrc->pw_gecos)+1)*sizeof(char));
    if (passwdtemp.pw_gecos == NULL) {
      *IERROR = ENOMEM;
      free(passwdtemp.pw_name);
      free(passwdtemp.pw_dir);
      free(passwdtemp.pw_shell);
      free(passwdtemp.pw_passwd);
#ifndef _LITTLE_ENDIAN
      free(passwdtemp.pw_age);
#endif  /* not _LITTLE_ENDIAN */
      free(passwdtemp.pw_gecos);
      return;
    }
    (void)strcpy(passwdtemp.pw_gecos, passwdsrc->pw_gecos);
    
  } else {
    *IERROR = errno;
    return;
  }
  
  /* free all components for the jpasswd handle. NOTE: free() as defined in ANSI C
   * checks for a NULL pointer so this extra check does not need to be performed. */
  free(cjpasswd->pw_name);
  free(cjpasswd->pw_passwd);
#ifndef _LITTLE_ENDIAN
  free(cjpasswd->pw_age);
  free(cjpasswd->pw_comment);
#endif  /* not _LITTLE_ENDIAN */
  free(cjpasswd->pw_gecos);
  free(cjpasswd->pw_dir);
  free(cjpasswd->pw_shell);
  
  *cjpasswd = passwdtemp;
}

#ifndef _UNICOS
void
pxfgetpwuid_(
       _f_int *IUID,
       _f_int *JPASSWD,
       _f_int *IERROR
)
{
  _PXFGETPWUID(IUID,JPASSWD,IERROR);
}
#endif

---