mirror of
https://gitlab.gnome.org/GNOME/glib.git
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784 lines
17 KiB
C
784 lines
17 KiB
C
/* GLIB - Library of useful routines for C programming
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <locale.h>
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#include <ctype.h> /* For tolower() */
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#include "glib.h"
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/* do not include <unistd.h> in this place since it
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* inteferes with g_strsignal() on some OSes
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*/
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gchar*
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g_strdup (const gchar *str)
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{
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gchar *new_str;
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new_str = NULL;
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if (str)
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{
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new_str = g_new (char, strlen (str) + 1);
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strcpy (new_str, str);
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}
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return new_str;
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}
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gchar*
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g_strndup (const gchar *str, gulong n)
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{
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char *new_str;
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new_str = NULL;
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if (str)
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{
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new_str = g_new (char, n + 1);
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strncpy (new_str, str, n);
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new_str[n] = '\0';
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}
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return new_str;
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}
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gchar*
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g_strconcat (const gchar *string1, ...)
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{
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guint l;
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va_list args;
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gchar *s;
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gchar *concat;
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g_return_val_if_fail (string1 != NULL, NULL);
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l = 1 + strlen (string1);
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va_start (args, string1);
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s = va_arg (args, gchar*);
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while (s)
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{
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l += strlen (s);
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s = va_arg (args, gchar*);
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}
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va_end (args);
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concat = g_new (gchar, l);
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concat[0] = 0;
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strcat (concat, string1);
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va_start (args, string1);
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s = va_arg (args, gchar*);
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while (s)
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{
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strcat (concat, s);
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s = va_arg (args, gchar*);
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}
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va_end (args);
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return concat;
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}
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gdouble
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g_strtod (const gchar *nptr,
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gchar **endptr)
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{
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gchar *fail_pos_1;
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gchar *fail_pos_2;
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gdouble val_1;
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gdouble val_2 = 0;
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g_return_val_if_fail (nptr != NULL, 0);
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fail_pos_1 = NULL;
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fail_pos_2 = NULL;
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val_1 = strtod (nptr, &fail_pos_1);
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if (fail_pos_1 && fail_pos_1[0] != 0)
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{
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gchar *old_locale;
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old_locale = setlocale (LC_NUMERIC, "C");
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val_2 = strtod (nptr, &fail_pos_2);
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setlocale (LC_NUMERIC, old_locale);
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}
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if (!fail_pos_1 || fail_pos_1[0] == 0 || fail_pos_1 >= fail_pos_2)
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{
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if (endptr)
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*endptr = fail_pos_1;
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return val_1;
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}
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else
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{
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if (endptr)
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*endptr = fail_pos_2;
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return val_2;
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}
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}
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gchar*
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g_strerror (gint errnum)
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{
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static char msg[64];
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#ifdef HAVE_STRERROR
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return strerror (errnum);
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#elif NO_SYS_ERRLIST
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switch (errnum)
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{
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#ifdef E2BIG
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case E2BIG: return "argument list too long";
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#endif
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#ifdef EACCES
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case EACCES: return "permission denied";
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#endif
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#ifdef EADDRINUSE
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case EADDRINUSE: return "address already in use";
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#endif
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#ifdef EADDRNOTAVAIL
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case EADDRNOTAVAIL: return "can't assign requested address";
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#endif
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#ifdef EADV
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case EADV: return "advertise error";
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#endif
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#ifdef EAFNOSUPPORT
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case EAFNOSUPPORT: return "address family not supported by protocol family";
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#endif
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#ifdef EAGAIN
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case EAGAIN: return "try again";
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#endif
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#ifdef EALIGN
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case EALIGN: return "EALIGN";
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#endif
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#ifdef EALREADY
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case EALREADY: return "operation already in progress";
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#endif
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#ifdef EBADE
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case EBADE: return "bad exchange descriptor";
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#endif
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#ifdef EBADF
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case EBADF: return "bad file number";
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#endif
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#ifdef EBADFD
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case EBADFD: return "file descriptor in bad state";
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#endif
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#ifdef EBADMSG
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case EBADMSG: return "not a data message";
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#endif
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#ifdef EBADR
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case EBADR: return "bad request descriptor";
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#endif
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#ifdef EBADRPC
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case EBADRPC: return "RPC structure is bad";
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#endif
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#ifdef EBADRQC
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case EBADRQC: return "bad request code";
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#endif
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#ifdef EBADSLT
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case EBADSLT: return "invalid slot";
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#endif
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#ifdef EBFONT
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case EBFONT: return "bad font file format";
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#endif
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#ifdef EBUSY
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case EBUSY: return "mount device busy";
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#endif
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#ifdef ECHILD
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case ECHILD: return "no children";
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#endif
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#ifdef ECHRNG
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case ECHRNG: return "channel number out of range";
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#endif
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#ifdef ECOMM
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case ECOMM: return "communication error on send";
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#endif
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#ifdef ECONNABORTED
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case ECONNABORTED: return "software caused connection abort";
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#endif
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#ifdef ECONNREFUSED
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case ECONNREFUSED: return "connection refused";
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#endif
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#ifdef ECONNRESET
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case ECONNRESET: return "connection reset by peer";
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#endif
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#if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK))
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case EDEADLK: return "resource deadlock avoided";
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#endif
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#ifdef EDEADLOCK
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case EDEADLOCK: return "resource deadlock avoided";
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#endif
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#ifdef EDESTADDRREQ
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case EDESTADDRREQ: return "destination address required";
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#endif
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#ifdef EDIRTY
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case EDIRTY: return "mounting a dirty fs w/o force";
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#endif
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#ifdef EDOM
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case EDOM: return "math argument out of range";
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#endif
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#ifdef EDOTDOT
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case EDOTDOT: return "cross mount point";
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#endif
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#ifdef EDQUOT
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case EDQUOT: return "disk quota exceeded";
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#endif
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#ifdef EDUPPKG
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case EDUPPKG: return "duplicate package name";
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#endif
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#ifdef EEXIST
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case EEXIST: return "file already exists";
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#endif
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#ifdef EFAULT
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case EFAULT: return "bad address in system call argument";
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#endif
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#ifdef EFBIG
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case EFBIG: return "file too large";
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#endif
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#ifdef EHOSTDOWN
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case EHOSTDOWN: return "host is down";
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#endif
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#ifdef EHOSTUNREACH
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case EHOSTUNREACH: return "host is unreachable";
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#endif
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#ifdef EIDRM
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case EIDRM: return "identifier removed";
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#endif
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#ifdef EINIT
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case EINIT: return "initialization error";
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#endif
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#ifdef EINPROGRESS
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case EINPROGRESS: return "operation now in progress";
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#endif
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#ifdef EINTR
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case EINTR: return "interrupted system call";
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#endif
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#ifdef EINVAL
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case EINVAL: return "invalid argument";
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#endif
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#ifdef EIO
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case EIO: return "I/O error";
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#endif
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#ifdef EISCONN
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case EISCONN: return "socket is already connected";
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#endif
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#ifdef EISDIR
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case EISDIR: return "illegal operation on a directory";
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#endif
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#ifdef EISNAME
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case EISNAM: return "is a name file";
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#endif
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#ifdef ELBIN
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case ELBIN: return "ELBIN";
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#endif
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#ifdef EL2HLT
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case EL2HLT: return "level 2 halted";
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#endif
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#ifdef EL2NSYNC
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case EL2NSYNC: return "level 2 not synchronized";
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#endif
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#ifdef EL3HLT
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case EL3HLT: return "level 3 halted";
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#endif
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#ifdef EL3RST
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case EL3RST: return "level 3 reset";
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#endif
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#ifdef ELIBACC
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case ELIBACC: return "can not access a needed shared library";
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#endif
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#ifdef ELIBBAD
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case ELIBBAD: return "accessing a corrupted shared library";
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#endif
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#ifdef ELIBEXEC
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case ELIBEXEC: return "can not exec a shared library directly";
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#endif
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#ifdef ELIBMAX
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case ELIBMAX: return "attempting to link in more shared libraries than system limit";
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#endif
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#ifdef ELIBSCN
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case ELIBSCN: return ".lib section in a.out corrupted";
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#endif
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#ifdef ELNRNG
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case ELNRNG: return "link number out of range";
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#endif
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#ifdef ELOOP
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case ELOOP: return "too many levels of symbolic links";
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#endif
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#ifdef EMFILE
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case EMFILE: return "too many open files";
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#endif
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#ifdef EMLINK
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case EMLINK: return "too many links";
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#endif
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#ifdef EMSGSIZE
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case EMSGSIZE: return "message too long";
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#endif
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#ifdef EMULTIHOP
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case EMULTIHOP: return "multihop attempted";
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#endif
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#ifdef ENAMETOOLONG
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case ENAMETOOLONG: return "file name too long";
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#endif
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#ifdef ENAVAIL
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case ENAVAIL: return "not available";
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#endif
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#ifdef ENET
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case ENET: return "ENET";
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#endif
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#ifdef ENETDOWN
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case ENETDOWN: return "network is down";
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#endif
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#ifdef ENETRESET
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case ENETRESET: return "network dropped connection on reset";
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#endif
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#ifdef ENETUNREACH
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case ENETUNREACH: return "network is unreachable";
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#endif
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#ifdef ENFILE
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case ENFILE: return "file table overflow";
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#endif
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#ifdef ENOANO
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case ENOANO: return "anode table overflow";
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#endif
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#if defined(ENOBUFS) && (!defined(ENOSR) || (ENOBUFS != ENOSR))
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case ENOBUFS: return "no buffer space available";
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#endif
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#ifdef ENOCSI
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case ENOCSI: return "no CSI structure available";
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#endif
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#ifdef ENODATA
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case ENODATA: return "no data available";
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#endif
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#ifdef ENODEV
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case ENODEV: return "no such device";
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#endif
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#ifdef ENOENT
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case ENOENT: return "no such file or directory";
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#endif
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#ifdef ENOEXEC
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case ENOEXEC: return "exec format error";
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#endif
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#ifdef ENOLCK
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case ENOLCK: return "no locks available";
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#endif
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#ifdef ENOLINK
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case ENOLINK: return "link has be severed";
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#endif
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#ifdef ENOMEM
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case ENOMEM: return "not enough memory";
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#endif
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#ifdef ENOMSG
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case ENOMSG: return "no message of desired type";
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#endif
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#ifdef ENONET
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case ENONET: return "machine is not on the network";
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#endif
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#ifdef ENOPKG
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case ENOPKG: return "package not installed";
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#endif
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#ifdef ENOPROTOOPT
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case ENOPROTOOPT: return "bad proocol option";
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#endif
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#ifdef ENOSPC
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case ENOSPC: return "no space left on device";
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#endif
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#ifdef ENOSR
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case ENOSR: return "out of stream resources";
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#endif
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#ifdef ENOSTR
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case ENOSTR: return "not a stream device";
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#endif
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#ifdef ENOSYM
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case ENOSYM: return "unresolved symbol name";
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#endif
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#ifdef ENOSYS
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case ENOSYS: return "function not implemented";
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#endif
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#ifdef ENOTBLK
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case ENOTBLK: return "block device required";
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#endif
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#ifdef ENOTCONN
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case ENOTCONN: return "socket is not connected";
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#endif
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#ifdef ENOTDIR
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case ENOTDIR: return "not a directory";
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#endif
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#ifdef ENOTEMPTY
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case ENOTEMPTY: return "directory not empty";
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#endif
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#ifdef ENOTNAM
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case ENOTNAM: return "not a name file";
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#endif
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#ifdef ENOTSOCK
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case ENOTSOCK: return "socket operation on non-socket";
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#endif
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#ifdef ENOTTY
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case ENOTTY: return "inappropriate device for ioctl";
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#endif
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#ifdef ENOTUNIQ
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case ENOTUNIQ: return "name not unique on network";
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#endif
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#ifdef ENXIO
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case ENXIO: return "no such device or address";
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#endif
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#ifdef EOPNOTSUPP
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case EOPNOTSUPP: return "operation not supported on socket";
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#endif
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#ifdef EPERM
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case EPERM: return "not owner";
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#endif
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#ifdef EPFNOSUPPORT
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case EPFNOSUPPORT: return "protocol family not supported";
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#endif
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#ifdef EPIPE
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case EPIPE: return "broken pipe";
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#endif
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#ifdef EPROCLIM
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case EPROCLIM: return "too many processes";
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#endif
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#ifdef EPROCUNAVAIL
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case EPROCUNAVAIL: return "bad procedure for program";
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#endif
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#ifdef EPROGMISMATCH
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case EPROGMISMATCH: return "program version wrong";
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#endif
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#ifdef EPROGUNAVAIL
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case EPROGUNAVAIL: return "RPC program not available";
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#endif
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#ifdef EPROTO
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case EPROTO: return "protocol error";
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#endif
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#ifdef EPROTONOSUPPORT
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case EPROTONOSUPPORT: return "protocol not suppored";
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#endif
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#ifdef EPROTOTYPE
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case EPROTOTYPE: return "protocol wrong type for socket";
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#endif
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#ifdef ERANGE
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case ERANGE: return "math result unrepresentable";
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#endif
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#if defined(EREFUSED) && (!defined(ECONNREFUSED) || (EREFUSED != ECONNREFUSED))
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case EREFUSED: return "EREFUSED";
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#endif
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#ifdef EREMCHG
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case EREMCHG: return "remote address changed";
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#endif
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#ifdef EREMDEV
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case EREMDEV: return "remote device";
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#endif
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#ifdef EREMOTE
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case EREMOTE: return "pathname hit remote file system";
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#endif
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#ifdef EREMOTEIO
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case EREMOTEIO: return "remote i/o error";
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#endif
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#ifdef EREMOTERELEASE
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case EREMOTERELEASE: return "EREMOTERELEASE";
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|
#endif
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|
#ifdef EROFS
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case EROFS: return "read-only file system";
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|
#endif
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#ifdef ERPCMISMATCH
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case ERPCMISMATCH: return "RPC version is wrong";
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#endif
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#ifdef ERREMOTE
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case ERREMOTE: return "object is remote";
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|
#endif
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|
#ifdef ESHUTDOWN
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case ESHUTDOWN: return "can't send afer socket shutdown";
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#endif
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#ifdef ESOCKTNOSUPPORT
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case ESOCKTNOSUPPORT: return "socket type not supported";
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#endif
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|
#ifdef ESPIPE
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case ESPIPE: return "invalid seek";
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|
#endif
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|
#ifdef ESRCH
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case ESRCH: return "no such process";
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|
#endif
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|
#ifdef ESRMNT
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case ESRMNT: return "srmount error";
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|
#endif
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|
#ifdef ESTALE
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|
case ESTALE: return "stale remote file handle";
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|
#endif
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|
#ifdef ESUCCESS
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|
case ESUCCESS: return "Error 0";
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|
#endif
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|
#ifdef ETIME
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case ETIME: return "timer expired";
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#endif
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#ifdef ETIMEDOUT
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case ETIMEDOUT: return "connection timed out";
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#endif
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|
#ifdef ETOOMANYREFS
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case ETOOMANYREFS: return "too many references: can't splice";
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|
#endif
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|
#ifdef ETXTBSY
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case ETXTBSY: return "text file or pseudo-device busy";
|
|
#endif
|
|
#ifdef EUCLEAN
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|
case EUCLEAN: return "structure needs cleaning";
|
|
#endif
|
|
#ifdef EUNATCH
|
|
case EUNATCH: return "protocol driver not attached";
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|
#endif
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#ifdef EUSERS
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|
case EUSERS: return "too many users";
|
|
#endif
|
|
#ifdef EVERSION
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|
case EVERSION: return "version mismatch";
|
|
#endif
|
|
#if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN))
|
|
case EWOULDBLOCK: return "operation would block";
|
|
#endif
|
|
#ifdef EXDEV
|
|
case EXDEV: return "cross-domain link";
|
|
#endif
|
|
#ifdef EXFULL
|
|
case EXFULL: return "message tables full";
|
|
#endif
|
|
}
|
|
#else /* NO_SYS_ERRLIST */
|
|
extern int sys_nerr;
|
|
extern char *sys_errlist[];
|
|
|
|
if ((errnum > 0) && (errnum <= sys_nerr))
|
|
return sys_errlist [errnum];
|
|
#endif /* NO_SYS_ERRLIST */
|
|
|
|
sprintf (msg, "unknown error (%d)", errnum);
|
|
return msg;
|
|
}
|
|
|
|
gchar*
|
|
g_strsignal (gint signum)
|
|
{
|
|
static char msg[64];
|
|
|
|
#ifdef HAVE_STRSIGNAL
|
|
extern char *strsignal (int sig);
|
|
return strsignal (signum);
|
|
#elif NO_SYS_SIGLIST
|
|
switch (signum)
|
|
{
|
|
#ifdef SIGHUP
|
|
case SIGHUP: return "Hangup";
|
|
#endif
|
|
#ifdef SIGINT
|
|
case SIGINT: return "Interrupt";
|
|
#endif
|
|
#ifdef SIGQUIT
|
|
case SIGQUIT: return "Quit";
|
|
#endif
|
|
#ifdef SIGILL
|
|
case SIGILL: return "Illegal instruction";
|
|
#endif
|
|
#ifdef SIGTRAP
|
|
case SIGTRAP: return "Trace/breakpoint trap";
|
|
#endif
|
|
#ifdef SIGABRT
|
|
case SIGABRT: return "IOT trap/Abort";
|
|
#endif
|
|
#ifdef SIGBUS
|
|
case SIGBUS: return "Bus error";
|
|
#endif
|
|
#ifdef SIGFPE
|
|
case SIGFPE: return "Floating point exception";
|
|
#endif
|
|
#ifdef SIGKILL
|
|
case SIGKILL: return "Killed";
|
|
#endif
|
|
#ifdef SIGUSR1
|
|
case SIGUSR1: return "User defined signal 1";
|
|
#endif
|
|
#ifdef SIGSEGV
|
|
case SIGSEGV: return "Segmentation fault";
|
|
#endif
|
|
#ifdef SIGUSR2
|
|
case SIGUSR2: return "User defined signal 2";
|
|
#endif
|
|
#ifdef SIGPIPE
|
|
case SIGPIPE: return "Broken pipe";
|
|
#endif
|
|
#ifdef SIGALRM
|
|
case SIGALRM: return "Alarm clock";
|
|
#endif
|
|
#ifdef SIGTERM
|
|
case SIGTERM: return "Terminated";
|
|
#endif
|
|
#ifdef SIGSTKFLT
|
|
case SIGSTKFLT: return "Stack fault";
|
|
#endif
|
|
#ifdef SIGCHLD
|
|
case SIGCHLD: return "Child exited";
|
|
#endif
|
|
#ifdef SIGCONT
|
|
case SIGCONT: return "Continued";
|
|
#endif
|
|
#ifdef SIGSTOP
|
|
case SIGSTOP: return "Stopped (signal)";
|
|
#endif
|
|
#ifdef SIGTSTP
|
|
case SIGTSTP: return "Stopped";
|
|
#endif
|
|
#ifdef SIGTTIN
|
|
case SIGTTIN: return "Stopped (tty input)";
|
|
#endif
|
|
#ifdef SIGTTOU
|
|
case SIGTTOU: return "Stopped (tty output)";
|
|
#endif
|
|
#ifdef SIGURG
|
|
case SIGURG: return "Urgent condition";
|
|
#endif
|
|
#ifdef SIGXCPU
|
|
case SIGXCPU: return "CPU time limit exceeded";
|
|
#endif
|
|
#ifdef SIGXFSZ
|
|
case SIGXFSZ: return "File size limit exceeded";
|
|
#endif
|
|
#ifdef SIGVTALRM
|
|
case SIGVTALRM: return "Virtual time alarm";
|
|
#endif
|
|
#ifdef SIGPROF
|
|
case SIGPROF: return "Profile signal";
|
|
#endif
|
|
#ifdef SIGWINCH
|
|
case SIGWINCH: return "Window size changed";
|
|
#endif
|
|
#ifdef SIGIO
|
|
case SIGIO: return "Possible I/O";
|
|
#endif
|
|
#ifdef SIGPWR
|
|
case SIGPWR: return "Power failure";
|
|
#endif
|
|
#ifdef SIGUNUSED
|
|
case SIGUNUSED: return "Unused signal";
|
|
#endif
|
|
}
|
|
#else /* NO_SYS_SIGLIST */
|
|
extern char *sys_siglist[];
|
|
return sys_siglist [signum];
|
|
#endif /* NO_SYS_SIGLIST */
|
|
|
|
sprintf (msg, "unknown signal (%d)", signum);
|
|
return msg;
|
|
}
|
|
|
|
void
|
|
g_strdown (gchar *string)
|
|
{
|
|
register gchar *s;
|
|
|
|
g_return_if_fail (string != NULL);
|
|
|
|
s = string;
|
|
|
|
while (*s)
|
|
{
|
|
*s = tolower (*s);
|
|
s++;
|
|
}
|
|
}
|
|
|
|
void
|
|
g_strup (gchar *string)
|
|
{
|
|
register gchar *s;
|
|
|
|
g_return_if_fail (string != NULL);
|
|
|
|
s = string;
|
|
|
|
while (*s)
|
|
{
|
|
*s = toupper (*s);
|
|
s++;
|
|
}
|
|
}
|
|
|
|
void
|
|
g_strreverse (gchar *string)
|
|
{
|
|
g_return_if_fail (string != NULL);
|
|
|
|
if (*string)
|
|
{
|
|
register gchar *h, *t;
|
|
|
|
h = string;
|
|
t = string + strlen (string) - 1;
|
|
|
|
while (h < t)
|
|
{
|
|
register gchar c;
|
|
|
|
c = *h;
|
|
*h = *t;
|
|
h++;
|
|
*t = c;
|
|
t--;
|
|
}
|
|
}
|
|
}
|
|
|
|
gint
|
|
g_strcasecmp (const gchar *s1,
|
|
const gchar *s2)
|
|
{
|
|
#ifdef HAVE_STRCASECMP
|
|
return strcasecmp (s1, s2);
|
|
#else
|
|
gint c1, c2;
|
|
|
|
while (*s1 && *s2)
|
|
{
|
|
/* According to A. Cox, some platforms have islower's that
|
|
* don't work right on non-uppercase
|
|
*/
|
|
c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
|
|
c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
|
|
if (c1 != c2)
|
|
return (c1 - c2);
|
|
s1++; s2++;
|
|
}
|
|
|
|
return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
|
|
#endif
|
|
}
|
|
|
|
void
|
|
g_strdelimit (gchar *string,
|
|
const gchar *delimiters,
|
|
gchar new_delim)
|
|
{
|
|
register gchar *c;
|
|
|
|
g_return_if_fail (string != NULL);
|
|
|
|
if (!delimiters)
|
|
delimiters = G_STR_DELIMITERS;
|
|
|
|
for (c = string; *c; c++)
|
|
{
|
|
if (strchr (delimiters, *c))
|
|
*c = new_delim;
|
|
}
|
|
}
|