diff options
Diffstat (limited to 'src/libfreeswan/rangetoa.c')
-rw-r--r-- | src/libfreeswan/rangetoa.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/libfreeswan/rangetoa.c b/src/libfreeswan/rangetoa.c new file mode 100644 index 000000000..e63b432f8 --- /dev/null +++ b/src/libfreeswan/rangetoa.c @@ -0,0 +1,61 @@ +/* + * convert binary form of address range to ASCII + * Copyright (C) 1998, 1999 Henry Spencer. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/lgpl.txt>. + * + * This library is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public + * License for more details. + * + * RCSID $Id: rangetoa.c,v 1.1 2004/03/15 20:35:26 as Exp $ + */ +#include "internal.h" +#include "freeswan.h" + +/* + - rangetoa - convert address range to ASCII + */ +size_t /* space needed for full conversion */ +rangetoa(addrs, format, dst, dstlen) +struct in_addr addrs[2]; +int format; /* character */ +char *dst; /* need not be valid if dstlen is 0 */ +size_t dstlen; +{ + size_t len; + size_t rest; + int n; + char *p; + + switch (format) { + case 0: + break; + default: + return 0; + break; + } + + len = addrtoa(addrs[0], 0, dst, dstlen); + if (len < dstlen) + for (p = dst + len - 1, n = 3; len < dstlen && n > 0; + p++, len++, n--) + *p = '.'; + else + p = NULL; + if (len < dstlen) + rest = dstlen - len; + else { + if (dstlen > 0) + *(dst + dstlen - 1) = '\0'; + rest = 0; + } + + len += addrtoa(addrs[1], 0, p, rest); + + return len; +} |