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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [libnetworking/] [libc/] [nsap_addr.c] - Rev 173
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/* * Copyright (c) 1996, 1998 by Internet Software Consortium. * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS * SOFTWARE. */ #if defined(LIBC_SCCS) && !defined(lint) static char rcsid[] = "$Id: nsap_addr.c,v 1.2 2001-09-27 12:01:53 chris Exp $"; #endif /* LIBC_SCCS and not lint */ #include <sys/types.h> #include <sys/param.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #include <arpa/nameser.h> #include <ctype.h> #include <resolv.h> static char xtob(c) register int c; { return (c - (((c >= '0') && (c <= '9')) ? '0' : '7')); } u_int inet_nsap_addr(ascii, binary, maxlen) const char *ascii; u_char *binary; int maxlen; { u_char c, nib; u_int len = 0; while ((c = *ascii++) != '\0' && len < (u_int)maxlen) { if (c == '.' || c == '+' || c == '/') continue; if (!isascii(c)) return (0); if (islower(c)) c = toupper(c); if (isxdigit(c)) { nib = xtob(c); c = *ascii++; if (c != '\0') { c = toupper(c); if (isxdigit(c)) { *binary++ = (nib << 4) | xtob(c); len++; } else return (0); } else return (0); } else return (0); } return (len); } char * inet_nsap_ntoa(binlen, binary, ascii) int binlen; register const u_char *binary; register char *ascii; { register int nib; int i; static char tmpbuf[255*3]; char *start; if (ascii) start = ascii; else { ascii = tmpbuf; start = tmpbuf; } if (binlen > 255) binlen = 255; for (i = 0; i < binlen; i++) { nib = *binary >> 4; *ascii++ = nib + (nib < 10 ? '0' : '7'); nib = *binary++ & 0x0f; *ascii++ = nib + (nib < 10 ? '0' : '7'); if (((i % 2) == 0 && (i + 1) < binlen)) *ascii++ = '.'; } *ascii = '\0'; return (start); }