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authorIgor Pashev <pashev.igor@gmail.com>2012-06-24 22:28:35 +0000
committerIgor Pashev <pashev.igor@gmail.com>2012-06-24 22:28:35 +0000
commit3950ffe2a485479f6561c27364d3d7df5a21d124 (patch)
tree468c6e14449d1b1e279222ec32f676b0311917d2 /src/lib/libast/comp/strcasecmp.c
downloadksh-upstream.tar.gz
Imported Upstream version 93u+upstream
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diff --git a/src/lib/libast/comp/strcasecmp.c b/src/lib/libast/comp/strcasecmp.c
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+++ b/src/lib/libast/comp/strcasecmp.c
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+/***********************************************************************
+* *
+* This software is part of the ast package *
+* Copyright (c) 1985-2011 AT&T Intellectual Property *
+* and is licensed under the *
+* Eclipse Public License, Version 1.0 *
+* by AT&T Intellectual Property *
+* *
+* A copy of the License is available at *
+* http://www.eclipse.org/org/documents/epl-v10.html *
+* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
+* *
+* Information and Software Systems Research *
+* AT&T Research *
+* Florham Park NJ *
+* *
+* Glenn Fowler <gsf@research.att.com> *
+* David Korn <dgk@research.att.com> *
+* Phong Vo <kpv@research.att.com> *
+* *
+***********************************************************************/
+#pragma prototyped
+
+#include <ast.h>
+
+#if _lib_strcasecmp
+
+NoN(strcasecmp)
+
+#else
+
+#include <ctype.h>
+
+#undef strcasecmp
+
+int
+strcasecmp(register const char* a, register const char* b)
+{
+ register int ac;
+ register int bc;
+ register int d;
+
+ for (;;)
+ {
+ ac = *a++;
+ if (isupper(ac))
+ ac = tolower(ac);
+ bc = *b++;
+ if (isupper(bc))
+ bc = tolower(bc);
+ if (d = ac - bc)
+ return d;
+ if (!ac)
+ return 0;
+ }
+}
+
+#endif