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Diffstat (limited to 'src/lib/libast/string/strlcat.c')
| -rw-r--r-- | src/lib/libast/string/strlcat.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/lib/libast/string/strlcat.c b/src/lib/libast/string/strlcat.c new file mode 100644 index 0000000..f5f17af --- /dev/null +++ b/src/lib/libast/string/strlcat.c @@ -0,0 +1,83 @@ +/*********************************************************************** +* * +* 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 +/* + * strlcat implementation + */ + +#define strlcat ______strlcat + +#include <ast.h> + +#undef strlcat + +#undef _def_map_ast +#include <ast_map.h> + +#if _lib_strlcat + +NoN(strlcat) + +#else + +/* + * append t onto s limiting total size of s to n + * s 0 terminated if n>0 + * min(n,strlen(s))+strlen(t) returned + */ + +#if defined(__EXPORT__) +#define extern __EXPORT__ +#endif + +extern size_t +strlcat(register char* s, register const char* t, register size_t n) +{ + register size_t m; + const char* o = t; + + if (m = n) + { + while (n && *s) + { + n--; + s++; + } + m -= n; + if (n) + do + { + if (!--n) + { + *s = 0; + break; + } + } while (*s++ = *t++); + else + *s = 0; + } + if (!n) + while (*t++); + return (t - o) + m - 1; +} + +#endif |