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https://git.code.sf.net/p/quake/quakeforge
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112 lines
2.2 KiB
C
112 lines
2.2 KiB
C
/*
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string.c
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A string helper function
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Copyright (C) 2001 Adam Olsen
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) 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.
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See the 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:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include "qstring.h"
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#ifdef IRIX
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#define _vsnprintf vsnprintf
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#endif
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/*
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Q_strcasestr
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case-insensitive version of strstr
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*/
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const char *
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Q_strcasestr (const char *haystack, const char *needle)
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{
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size_t len = strlen (needle);
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while (*haystack) {
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if (!strncasecmp (haystack, needle, len))
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return haystack;
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haystack++;
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}
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return 0;
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}
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/*
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Q_strnlen
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strlen with a cutoff
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*/
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size_t
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Q_strnlen (const char *s, size_t maxlen)
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{
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size_t i;
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for (i = 0; i < maxlen && s[i]; i++);
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return i;
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}
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char *
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Q_strndup (const char *s, size_t n)
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{
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size_t l = strnlen (s, n);
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char *str = malloc (l + 1);
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strncpy (str, s, l);
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str[l] = 0;
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return str;
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}
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#if defined(HAVE__VSNPRINTF) && !defined(HAVE_VSNPRINTF)
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size_t
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Q_snprintfz (char *dest, size_t size, const char *fmt, ...)
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{
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int len;
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va_list argptr;
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va_start (argptr, fmt);
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len = _vsnprintf (dest, size - 1, fmt, argptr);
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va_end (argptr);
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if (len < 0 && size) // the string didn't fit into the buffer
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dest[size - 1] = 0;
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return len;
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}
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size_t
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Q_vsnprintfz (char *dest, size_t size, const char *fmt, va_list argptr)
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{
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int len;
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len = _vsnprintf (dest, size - 1, fmt, argptr);
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if (len < 0 && size) // the string didn't fit into the buffer
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dest[size - 1] = 0;
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return len;
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}
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#endif
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