113 lines
2.4 KiB
C
113 lines
2.4 KiB
C
/* clib.c: Functions which we normally expect to find in the C library.
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$Id: clib.c,v 1.2 1996/10/03 16:58:31 karl Exp $
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This file is part of GNU Info, a program for reading online documentation
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stored in Info format.
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Copyright (C) 1995 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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Written by Brian Fox (bfox@ai.mit.edu). */
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#include <stdio.h>
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#if defined (HAVE_UNISTD_H)
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#include <unistd.h>
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#endif
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#if defined (HAVE_STDLIB_H)
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#include <stdlib.h>
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#endif
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#if defined (HAVE_STRING_H)
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#include <string.h>
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#endif
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#include <sys/errno.h>
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extern void *xmalloc (), *xrealloc ();
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#include "general.h"
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#if !defined (errno)
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extern int errno;
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#endif
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#if !defined (HAVE_STRERROR)
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extern char *sys_errlist[];
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extern int sys_nerr;
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char *
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strerror (num)
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int num;
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{
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if (num >= sys_nerr)
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return ("");
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else
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return (sys_errlist[num]);
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}
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#endif /* !HAVE_STRERROR */
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#if !defined (HAVE_STRCASECMP)
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/* This Unix doesn't have the strcasecmp () function. */
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int
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strcasecmp (string1, string2)
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char *string1, *string2;
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{
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char ch1, ch2;
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for (;;)
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{
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ch1 = *string1++;
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ch2 = *string2++;
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if (!(ch1 | ch2))
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return (0);
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ch1 = info_toupper (ch1);
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ch2 = info_toupper (ch2);
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if (ch1 != ch2)
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return (ch1 - ch2);
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}
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}
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/* Compare at most COUNT characters from string1 to string2. Case
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doesn't matter. */
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int
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strncasecmp (string1, string2, count)
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char *string1, *string2;
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int count;
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{
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register char ch1, ch2;
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while (count)
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{
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ch1 = *string1++;
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ch2 = *string2++;
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ch1 = info_toupper (ch1);
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ch2 = info_toupper (ch2);
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if (ch1 == ch2)
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count--;
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else
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break;
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}
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return (count);
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}
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#endif /* !STRCASECMP */
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