X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fstpncpy.c;h=37018e8bf7cd4ad02e34b8f1ac5240aa34496e9c;hb=1276a2c5f24c0c932426aca9c899fa524d2443f2;hp=243cbc7bb669076d82db9bde60ee7dcdd48453b4;hpb=1080617a7d04cdf1a1d3b1e390859af371d485d7;p=gnulib.git diff --git a/lib/stpncpy.c b/lib/stpncpy.c index 243cbc7bb..37018e8bf 100644 --- a/lib/stpncpy.c +++ b/lib/stpncpy.c @@ -1,11 +1,12 @@ -/* Copyright (C) 1993, 1995-1997, 2002-2003 Free Software Foundation, Inc. +/* Copyright (C) 1993, 1995-1997, 2002-2003, 2005-2007, 2009-2014 Free Software + * Foundation, Inc. NOTE: The canonical source of this file is maintained with the GNU C Library. Bugs can be reported to bug-glibc@gnu.org. - This program is free software; you can redistribute it and/or modify it + This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the - Free Software Foundation; either version 2, or (at your option) any + Free Software Foundation; either version 3 of the License, or any later version. This program is distributed in the hope that it will be useful, @@ -14,33 +15,23 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, - USA. */ + along with this program. If not, see . */ /* This is almost copied from strncpy.c, written by Torbjorn Granlund. */ -#ifdef HAVE_CONFIG_H -# include -#endif +#include /* Specification. */ -#include "stpncpy.h" - -#ifdef _LIBC -# include -#else -# include -#endif +#include #ifndef weak_alias # define __stpncpy stpncpy #endif -/* Copy no more than N characters of SRC to DEST, returning the address of - the terminating '\0' in DEST, if any, or else DEST + N. */ +/* Copy no more than N bytes of SRC to DST, returning a pointer past the + last non-NUL byte written into DST. */ char * -__stpncpy (char *dest, const char *src, size_t n) +(__stpncpy) (char *dest, const char *src, size_t n) { char c; char *s = dest; @@ -50,26 +41,26 @@ __stpncpy (char *dest, const char *src, size_t n) size_t n4 = n >> 2; for (;;) - { - c = *src++; - *dest++ = c; - if (c == '\0') - break; - c = *src++; - *dest++ = c; - if (c == '\0') - break; - c = *src++; - *dest++ = c; - if (c == '\0') - break; - c = *src++; - *dest++ = c; - if (c == '\0') - break; - if (--n4 == 0) - goto last_chars; - } + { + c = *src++; + *dest++ = c; + if (c == '\0') + break; + c = *src++; + *dest++ = c; + if (c == '\0') + break; + c = *src++; + *dest++ = c; + if (c == '\0') + break; + c = *src++; + *dest++ = c; + if (c == '\0') + break; + if (--n4 == 0) + goto last_chars; + } n -= dest - s; goto zero_fill; } @@ -85,9 +76,9 @@ __stpncpy (char *dest, const char *src, size_t n) --n; *dest++ = c; if (c == '\0') - break; + break; if (n == 0) - return dest; + return dest; } zero_fill: