diff options
Diffstat (limited to 'usr/src/lib/libast/common/string/fmtip6.c')
| -rw-r--r-- | usr/src/lib/libast/common/string/fmtip6.c | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/usr/src/lib/libast/common/string/fmtip6.c b/usr/src/lib/libast/common/string/fmtip6.c deleted file mode 100644 index 5b1133a12d..0000000000 --- a/usr/src/lib/libast/common/string/fmtip6.c +++ /dev/null @@ -1,175 +0,0 @@ -/*********************************************************************** -* * -* This software is part of the ast package * -* Copyright (c) 1985-2010 AT&T Intellectual Property * -* and is licensed under the * -* Common Public License, Version 1.0 * -* by AT&T Intellectual Property * -* * -* 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 - -#if _PACKAGE_ast -#include <ast.h> -#endif - -#include <ip6.h> - -#if !_PACKAGE_ast - -/* - * return a pointer to n bytes from a circular re-use buffer - */ - -static char* -fmtbuf(int n) -{ - char* b; - - static char buf[1024]; - static char* p = buf; - - if ((&buf[sizeof(buf)] - p) < n) - p = buf; - b = p; - p += n; - return b; -} - -#endif - -/* - * copy p to s, then convert 0<=n<=999 to text - * next char in s returned - * caller ensures that s can take strlen(p)+3 bytes - */ - -static char* -dec(char* s, char* p, int n) -{ - while (*s = *p++) - s++; - if (n >= 100) - *s++ = '0' + ((n / 100) % 10); - if (n >= 10) - *s++ = '0' + ((n / 10) % 10); - *s++ = '0' + (n % 10); - return s; -} - -/* - * return pointer to normalized ipv6 address addr - * with optional prefix bits if 0 < bits <= 128 - * return value in short-term circular buffer - */ - -char* -fmtip6(unsigned char* addr, int bits) -{ - register unsigned char* a = addr; - register int n = IP6ADDR; - register int i; - register int z; - register int k; - register int m; - unsigned char r[IP6ADDR]; - char* b; - char* s; - - static const char dig[] = "0123456789ABCDEF"; - - s = b = fmtbuf(44); - r[m = z = 0] = 0; - if (a[0] == 0x20 && a[1] == 0x02 && (a[2] || a[3] || a[4] || a[5])) - { - z = 6; - s = dec(s, "2002:", a[2]); - s = dec(s, ".", a[3]); - s = dec(s, ".", a[4]); - s = dec(s, ".", a[5]); - } - for (i = z; i < n; i += 2) - { - for (k = i; i < n - 1 && !a[i] && !a[i + 1]; i += 2); - if ((r[k] = i - k) > r[m] || r[k] == r[m] && i >= (n - 1)) - m = k; - } - if (!m) - switch (r[m]) - { - case 0: - m = -1; - break; - case 14: - if (!a[14] && a[15] <= 15) - break; - /*FALLTHROUGH*/ - case 12: - s = dec(s, "::", a[12]); - s = dec(s, ".", a[13]); - s = dec(s, ".", a[14]); - s = dec(s, ".", a[15]); - n = 0; - break; - case 10: - if (a[10] == 0xFF && a[11] == 0xFF) - { - s = dec(s, "::FFFF:", a[12]); - s = dec(s, ".", a[13]); - s = dec(s, ".", a[14]); - s = dec(s, ".", a[15]); - n = 0; - } - break; - } - for (i = z; i < n; i++) - { - if (i == m) - { - *s++ = ':'; - *s++ = ':'; - if ((i += r[m]) >= n) - { - z = 1; - break; - } - z = 0; - } - else if (i && !(i & 1)) - { - if (z) - z = 0; - else - *s++ = '0'; - *s++ = ':'; - } - if ((k = (a[i] >> 4) & 0xf) || z) - { - z = 1; - *s++ = dig[k]; - } - if ((k = a[i] & 0xf) || z) - { - z = 1; - *s++ = dig[k]; - } - } - if (!z && *(s - 1) == ':') - *s++ = '0'; - if (bits > 0 && bits <= 128) - s = dec(s, "/", bits); - *s = 0; - return b; -} |