mirror of
https://kernel.googlesource.com/pub/scm/network/tftp/tftp-hpa
synced 2025-04-26 01:49:52 +03:00
77fbfeebee
Implement is_numeric_ipv6() as a state machine, so we can avoid in-place modification. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
121 lines
3.7 KiB
C
121 lines
3.7 KiB
C
/*
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Prototypes for read-ahead/write-behind subroutines for tftp user and
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* server.
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*/
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#ifndef TFTPSUBS_H
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#define TFTPSUBS_H
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#include "config.h"
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union sock_addr {
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struct sockaddr sa;
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struct sockaddr_in si;
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#ifdef HAVE_IPV6
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struct sockaddr_in6 s6;
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#endif
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};
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#define SOCKLEN(sock) \
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(((union sock_addr*)sock)->sa.sa_family == AF_INET ? \
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(sizeof(struct sockaddr_in)) : \
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(sizeof(union sock_addr)))
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#ifdef HAVE_IPV6
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#define SOCKPORT(sock) \
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(((union sock_addr*)sock)->sa.sa_family == AF_INET ? \
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((union sock_addr*)sock)->si.sin_port : \
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((union sock_addr*)sock)->s6.sin6_port)
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#else
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#define SOCKPORT(sock) \
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(((union sock_addr*)sock)->si.sin_port)
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#endif
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#ifdef HAVE_IPV6
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#define SOCKADDR_P(sock) \
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(((union sock_addr*)sock)->sa.sa_family == AF_INET ? \
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(void *)&((union sock_addr*)sock)->si.sin_addr : \
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(void *)&((union sock_addr*)sock)->s6.sin6_addr)
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#else
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#define SOCKADDR_P(sock) \
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(void *)&((union sock_addr*)sock)->si.sin_addr
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#endif
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#ifdef HAVE_IPV6
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int is_numeric_ipv6(const char *);
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char *strip_address(char *);
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#else
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#define is_numeric_ipv6(a) 0
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#define strip_address(a) (a)
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#endif
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static inline int sa_set_port(union sock_addr *s, u_short port)
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{
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switch (s->sa.sa_family) {
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case AF_INET:
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s->si.sin_port = port;
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break;
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#ifdef HAVE_IPV6
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case AF_INET6:
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s->s6.sin6_port = port;
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break;
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#endif
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default:
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return -1;
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}
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return 0;
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}
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int set_sock_addr(char *, union sock_addr *, char **);
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struct tftphdr;
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struct tftphdr *r_init(void);
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void read_ahead(FILE *, int);
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int readit(FILE *, struct tftphdr **, int);
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int synchnet(int);
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struct tftphdr *w_init(void);
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int write_behind(FILE *, int);
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int writeit(FILE *, struct tftphdr **, int, int);
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extern int segsize;
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#define MAX_SEGSIZE 65464
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int pick_port_bind(int sockfd, union sock_addr *myaddr,
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unsigned int from, unsigned int to);
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#endif
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