nis/nis_error.c

   1 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <syslog.h>
  21 #include <string.h>
  22 #include <libintl.h>
  23 #include <rpcsvc/nis.h>
  24 #include <shlib-compat.h>
  25
  26
  27 #define MF(line) MF1 (line)
  28 #define MF1(line) str##line
  29 static const union msgstr_t
  30 {
  31   struct
  32   {
  33 #define S(s) char MF(__LINE__)[sizeof (s)];
  34 #include "nis_error.h"
  35 #undef S
  36   };
  37   char str[0];
  38 } msgstr =
  39   {
  40     {
  41 #define S(s) s,
  42 #include "nis_error.h"
  43 #undef S
  44     }
  45   };
  46
  47 static const unsigned short int msgidx[] =
  48   {
  49 #define S(s) offsetof (union msgstr_t, MF (__LINE__)),
  50 #include "nis_error.h"
  51 #undef S
  52   };
  53
  54
  55 const char *
  56 nis_sperrno (const nis_error status)
  57 {
  58   if (status >= sizeof (msgidx) / sizeof (msgidx[0]))
  59     return "???";
  60   else
  61     return gettext (msgstr.str + msgidx[status]);
  62 }
  63 libnsl_hidden_nolink_def (nis_sperrno, GLIBC_2_1)
  64
  65 void
  66 nis_perror (const nis_error status, const char *label)
  67 {
  68   fprintf (stderr, "%s: %s\n", label, nis_sperrno (status));
  69 }
  70 libnsl_hidden_nolink_def (nis_perror, GLIBC_2_1)
  71
  72 void
  73 nis_lerror (const nis_error status, const char *label)
  74 {
  75   syslog (LOG_ERR, "%s: %s", label, nis_sperrno (status));
  76 }
  77 libnsl_hidden_nolink_def (nis_lerror, GLIBC_2_1)
  78
  79 char *
  80 nis_sperror_r (const nis_error status, const char *label,
  81                char *buffer, size_t buflen)
  82 {
  83   if (snprintf (buffer, buflen, "%s: %s", label, nis_sperrno (status))
  84       >= buflen)
  85     {
  86       __set_errno (ERANGE);
  87       return NULL;
  88     }
  89
  90   return buffer;
  91 }
  92 libnsl_hidden_nolink_def (nis_sperror_r, GLIBC_2_1)
  93
  94 char *
  95 nis_sperror (const nis_error status, const char *label)
  96 {
  97   static char buffer[NIS_MAXNAMELEN + 1];
  98
  99   return nis_sperror_r (status, label, buffer, sizeof (buffer));
 100 }
 101 libnsl_hidden_nolink_def (nis_sperror, GLIBC_2_1)