44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
/*
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* busybox library eXtended function
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*
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* Copyright (C) 2001 Larry Doolittle, <ldoolitt@recycle.lbl.gov>
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*
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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 of the License, or
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* (at your option) any later version.
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*
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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 GNU
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* General Public License for more details.
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*
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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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*
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*/
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#include <string.h>
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/* Find out if the last character of a string matches the one given Don't
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* underrun the buffer if the string length is 0. Also avoids a possible
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* space-hogging inline of strlen() per usage.
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*/
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char *
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last_char_is (const char *s, int c)
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{
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char *sret;
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if (!s)
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return NULL;
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sret = (char *) s + strlen (s) - 1;
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if (sret >= s && *sret == c)
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{
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return sret;
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}
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else
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{
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return NULL;
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}
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}
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