userdb/userdb2.c

   1 /*
   2 ** Copyright 1998 - 2007 Double Precision, Inc.
   3 ** See COPYING for distribution information.
   4 */
   5
   6 #if     HAVE_CONFIG_H
   7 #include        "config.h"
   8 #endif
   9 #include        "dbobj.h"
  10 #include        "userdb.h"
  11 #include        <string.h>
  12 #include        <stdlib.h>
  13 #include        <stdio.h>
  14 #include        <errno.h>
  15
  16
  17 extern int userdb_debug_level;
  18
  19 char    *userdbshadow(const char *sh, const char *u)
  20 {
  21 struct dbobj d;
  22 char    *p,*q;
  23 size_t  l;
  24
  25         dbobj_init(&d);
  26
  27         if (dbobj_open(&d, sh, "R"))
  28         {
  29                 if (userdb_debug_level)
  30                         fprintf(stderr,
  31                                 "DEBUG: userdbshadow: unable to open %s\n", sh);
  32                 return (0);
  33         }
  34
  35         q=dbobj_fetch(&d, u, strlen(u), &l, "");
  36         dbobj_close(&d);
  37         if (!q)
  38         {
  39                 if (userdb_debug_level)
  40                         fprintf(stderr,
  41                                 "DEBUG: userdbshadow: entry not found\n");
  42                 errno=ENOENT;
  43                 return(0);
  44         }
  45
  46         p=malloc(l+1);
  47         if (!p)
  48         {
  49                 free(q);
  50                 return (0);
  51         }
  52
  53         if (l)  memcpy(p, q, l);
  54         free(q);
  55         p[l]=0;
  56         return (p);
  57 }