diff options
Diffstat (limited to 'usr/src/lib/libast/common/comp/strncasecmp.c')
| -rw-r--r-- | usr/src/lib/libast/common/comp/strncasecmp.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/usr/src/lib/libast/common/comp/strncasecmp.c b/usr/src/lib/libast/common/comp/strncasecmp.c new file mode 100644 index 0000000000..a49159154e --- /dev/null +++ b/usr/src/lib/libast/common/comp/strncasecmp.c @@ -0,0 +1,62 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1985-2007 AT&T Knowledge Ventures * +* and is licensed under the * +* Common Public License, Version 1.0 * +* by AT&T Knowledge Ventures * +* * +* A copy of the License is available at * +* http://www.opensource.org/licenses/cpl1.0.txt * +* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * +* * +* 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_strncasecmp + +NoN(strncasecmp) + +#else + +#include <ctype.h> + +#undef strncasecmp + +int +strncasecmp(register const char* a, register const char* b, size_t n) +{ + register const char* e; + register int ac; + register int bc; + register int d; + + e = a + n; + for (;;) + { + if (a >= e) + return 0; + 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 |