Annotation of ircnowd/src/portab/strlcpy.c, Revision 1.1
1.1 ! tomglok 1: /*
! 2: * ngIRCd -- The Next Generation IRC Daemon
! 3: * Copyright (c)2001-2014 Alexander Barton (alex@barton.de) and Contributors.
! 4: *
! 5: * This program is free software; you can redistribute it and/or modify
! 6: * it under the terms of the GNU General Public License as published by
! 7: * the Free Software Foundation; either version 2 of the License, or
! 8: * (at your option) any later version.
! 9: * Please read the file COPYING, README and AUTHORS for more information.
! 10: */
! 11:
! 12: #include "portab.h"
! 13:
! 14: /**
! 15: * @file
! 16: * strlcpy() and strlcat() replacement functions.
! 17: *
! 18: * See <http://www.openbsd.org/papers/strlcpy-paper.ps> for details.
! 19: *
! 20: * Code partially borrowed from compat.c of rsync, written by Andrew
! 21: * Tridgell (1998) and Martin Pool (2002):
! 22: * <http://cvs.samba.org/cgi-bin/cvsweb/rsync/lib/compat.c>
! 23: */
! 24:
! 25: #include <string.h>
! 26: #include <sys/types.h>
! 27:
! 28: #ifndef HAVE_STRLCAT
! 29:
! 30: GLOBAL size_t
! 31: strlcat( char *dst, const char *src, size_t size )
! 32: {
! 33: /* Like strncat() but does not 0 fill the buffer and
! 34: * always null terminates. */
! 35:
! 36: size_t len1 = strlen( dst );
! 37: size_t len2 = strlen( src );
! 38: size_t ret = len1 + len2;
! 39:
! 40: if( size && ( len1 < size - 1 )) {
! 41: if( len2 >= size - len1 )
! 42: len2 = size - len1 - 1;
! 43: memcpy( dst + len1, src, len2 );
! 44: dst[len1 + len2] = 0;
! 45: }
! 46: return ret;
! 47: } /* strlcat */
! 48:
! 49: #endif
! 50:
! 51: #ifndef HAVE_STRLCPY
! 52:
! 53: GLOBAL size_t
! 54: strlcpy( char *dst, const char *src, size_t size )
! 55: {
! 56: /* Like strncpy but does not 0 fill the buffer and
! 57: * always null terminates. */
! 58:
! 59: size_t len = strlen( src );
! 60: size_t ret = len;
! 61:
! 62: if( size > 0 ) {
! 63: if( len >= size ) len = size - 1;
! 64: memcpy( dst, src, len );
! 65: dst[len] = 0;
! 66: }
! 67: return ret;
! 68: } /* strlcpy */
! 69:
! 70: #endif
! 71:
! 72: /* -eof- */
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