From 5d8336c182777c36ebff561b420d67fcafb9a9f7 Mon Sep 17 00:00:00 2001 From: Nick Mathewson Date: Tue, 10 Jul 2018 12:50:38 -0400 Subject: [PATCH] Refactor ipv[46].[ch] These are now combined into an inaddr.[ch], since their purpose is to implement functions for struct in_addr and struct in6_addr. The definitions for in6_addr and its allies are now in a separate header, inaddr_st.h. Closes ticket 26532. --- src/core/or/or.h | 3 +- src/lib/net/address.c | 2 +- src/lib/net/address.h | 2 +- src/lib/net/{ipv6.c => inaddr.c} | 57 ++++++++++++++++++++++++----- src/lib/net/{ipv4.h => inaddr.h} | 14 +++++-- src/lib/net/{ipv6.h => inaddr_st.h} | 21 ++++++----- src/lib/net/include.am | 7 ++-- src/lib/net/ipv4.c | 57 ----------------------------- src/tools/tor-gencert.c | 2 +- 9 files changed, 76 insertions(+), 89 deletions(-) rename src/lib/net/{ipv6.c => inaddr.c} (82%) rename src/lib/net/{ipv4.h => inaddr.h} (66%) rename src/lib/net/{ipv6.h => inaddr_st.h} (89%) delete mode 100644 src/lib/net/ipv4.c diff --git a/src/core/or/or.h b/src/core/or/or.h index 6edfd21dfb..a9bef9404a 100644 --- a/src/core/or/or.h +++ b/src/core/or/or.h @@ -49,8 +49,7 @@ #include "lib/log/util_bug.h" #include "lib/malloc/util_malloc.h" #include "lib/net/address.h" -#include "lib/net/ipv4.h" -#include "lib/net/ipv6.h" +#include "lib/net/inaddr.h" #include "lib/net/resolve.h" #include "lib/net/socket.h" #include "lib/string/compat_ctype.h" diff --git a/src/lib/net/address.c b/src/lib/net/address.c index f3eddca7bb..fbdd9591d1 100644 --- a/src/lib/net/address.c +++ b/src/lib/net/address.c @@ -43,7 +43,7 @@ #include "lib/log/torlog.h" #include "lib/log/escape.h" #include "lib/malloc/util_malloc.h" -#include "lib/net/ipv4.h" +#include "lib/net/inaddr.h" #include "lib/string/compat_ctype.h" #include "lib/string/compat_string.h" #include "lib/string/parse_int.h" diff --git a/src/lib/net/address.h b/src/lib/net/address.h index f8ea573c30..444405ec17 100644 --- a/src/lib/net/address.h +++ b/src/lib/net/address.h @@ -14,7 +14,7 @@ #include "orconfig.h" #include "lib/cc/torint.h" #include "lib/log/util_bug.h" -#include "lib/net/ipv6.h" +#include "lib/net/inaddr_st.h" #include "lib/net/nettypes.h" #ifdef HAVE_NETINET_IN_H diff --git a/src/lib/net/ipv6.c b/src/lib/net/inaddr.c similarity index 82% rename from src/lib/net/ipv6.c rename to src/lib/net/inaddr.c index 630d6f1db4..dcd8fcdd65 100644 --- a/src/lib/net/ipv6.c +++ b/src/lib/net/inaddr.c @@ -4,20 +4,20 @@ /* See LICENSE for licensing information */ /** - * \file ipv6.c - * \brief Functions for encoding and decoding IPv6 addresses - * - * (Because these functions are generic, they can also handle IPv4 addresses). + * \file inaddr.c + * \brief Convert in_addr and in6_addr to and from strings. **/ -#include "lib/net/ipv6.h" -#include "lib/net/ipv4.h" -#include "lib/string/util_string.h" -#include "lib/string/compat_string.h" +#include "lib/net/inaddr.h" + +#include "lib/cc/torint.h" +#include "lib/log/util_bug.h" +#include "lib/net/inaddr_st.h" #include "lib/string/compat_ctype.h" +#include "lib/string/compat_string.h" #include "lib/string/printf.h" #include "lib/string/scanf.h" -#include "lib/log/util_bug.h" +#include "lib/string/util_string.h" #ifdef HAVE_ARPA_INET_H #include @@ -26,6 +26,45 @@ #include #include +#ifdef _WIN32 +#include +#endif + +/** Set *addr to the IP address (in dotted-quad notation) stored in *str. + * Return 1 on success, 0 if *str is badly formatted. + * (Like inet_aton(str,addr), but works on Windows and Solaris.) + */ +int +tor_inet_aton(const char *str, struct in_addr* addr) +{ + unsigned a,b,c,d; + char more; + if (tor_sscanf(str, "%3u.%3u.%3u.%3u%c", &a,&b,&c,&d,&more) != 4) + return 0; + if (a > 255) return 0; + if (b > 255) return 0; + if (c > 255) return 0; + if (d > 255) return 0; + addr->s_addr = htonl((a<<24) | (b<<16) | (c<<8) | d); + return 1; +} + +/** Given an IPv4 in_addr struct *in (in network order, as usual), + * write it as a string into the buf_len-byte buffer in + * buf. Returns a non-negative integer on success. + * Returns -1 on failure. + */ +int +tor_inet_ntoa(const struct in_addr *in, char *buf, size_t buf_len) +{ + uint32_t a = ntohl(in->s_addr); + return tor_snprintf(buf, buf_len, "%d.%d.%d.%d", + (int)(uint8_t)((a>>24)&0xff), + (int)(uint8_t)((a>>16)&0xff), + (int)(uint8_t)((a>>8 )&0xff), + (int)(uint8_t)((a )&0xff)); +} + /** Given af==AF_INET and src a struct in_addr, or * af==AF_INET6 and src a struct in6_addr, try to format the * address and store it in the len-byte buffer dst. Returns diff --git a/src/lib/net/ipv4.h b/src/lib/net/inaddr.h similarity index 66% rename from src/lib/net/ipv4.h rename to src/lib/net/inaddr.h index 0127f09e09..121025a126 100644 --- a/src/lib/net/ipv4.h +++ b/src/lib/net/inaddr.h @@ -4,18 +4,24 @@ /* See LICENSE for licensing information */ /** - * \file ipv4.h - * \brief Header for ipv4.c + * \file inaddr.h + * \brief Header for inaddr.c. **/ -#ifndef TOR_IPV4_H -#define TOR_IPV4_H +#ifndef TOR_INADDR_H +#define TOR_INADDR_H + +#include "orconfig.h" #include struct in_addr; + int tor_inet_aton(const char *str, struct in_addr *addr); /** Length of a buffer to allocate to hold the results of tor_inet_ntoa.*/ #define INET_NTOA_BUF_LEN 16 int tor_inet_ntoa(const struct in_addr *in, char *buf, size_t buf_len); +const char *tor_inet_ntop(int af, const void *src, char *dst, size_t len); +int tor_inet_pton(int af, const char *src, void *dst); + #endif diff --git a/src/lib/net/ipv6.h b/src/lib/net/inaddr_st.h similarity index 89% rename from src/lib/net/ipv6.h rename to src/lib/net/inaddr_st.h index 4e5ef4da88..cc72621e99 100644 --- a/src/lib/net/ipv6.h +++ b/src/lib/net/inaddr_st.h @@ -4,25 +4,29 @@ /* See LICENSE for licensing information */ /** - * \file ipv6.h - * \brief Header for ipv6.c + * \file inaddr_st.h + * + * \brief Define in6_addr, its members, and related types on platforms that + * lack it. **/ -#ifndef TOR_IPV6_H -#define TOR_IPV6_H +#ifndef TOR_INADDR_ST_H +#define TOR_INADDR_ST_H -#include "orconfig.h" -#include #ifdef HAVE_NETINET_IN6_H #include #endif + #ifdef _WIN32 #include #include #include #endif + #include "lib/cc/torint.h" +struct in_addr; + /** Implementation of struct in6_addr for platforms that do not have it. * Generally, these platforms are ones without IPv6 support, but we want to * have a working in6_addr there anyway, so we can use it to parse IPv6 @@ -85,7 +89,4 @@ struct sockaddr_in6 { }; #endif /* !defined(HAVE_STRUCT_SOCKADDR_IN6) */ -const char *tor_inet_ntop(int af, const void *src, char *dst, size_t len); -int tor_inet_pton(int af, const char *src, void *dst); - -#endif +#endif /* TOR_INADDR_ST_H */ diff --git a/src/lib/net/include.am b/src/lib/net/include.am index 6fda173614..67db0d5af2 100644 --- a/src/lib/net/include.am +++ b/src/lib/net/include.am @@ -10,8 +10,7 @@ src_lib_libtor_net_a_SOURCES = \ src/lib/net/alertsock.c \ src/lib/net/buffers_net.c \ src/lib/net/gethostname.c \ - src/lib/net/ipv4.c \ - src/lib/net/ipv6.c \ + src/lib/net/inaddr.c \ src/lib/net/resolve.c \ src/lib/net/socket.c @@ -25,8 +24,8 @@ noinst_HEADERS += \ src/lib/net/alertsock.h \ src/lib/net/buffers_net.h \ src/lib/net/gethostname.h \ - src/lib/net/ipv4.h \ - src/lib/net/ipv6.h \ + src/lib/net/inaddr.h \ + src/lib/net/inaddr_st.h \ src/lib/net/nettypes.h \ src/lib/net/resolve.h \ src/lib/net/socket.h \ diff --git a/src/lib/net/ipv4.c b/src/lib/net/ipv4.c deleted file mode 100644 index db1429f49c..0000000000 --- a/src/lib/net/ipv4.c +++ /dev/null @@ -1,57 +0,0 @@ -/* Copyright (c) 2003-2004, Roger Dingledine - * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. - * Copyright (c) 2007-2018, The Tor Project, Inc. */ -/* See LICENSE for licensing information */ - -/** - * \file ipv4.c - * \brief Functions for encoding and decoding IPv4 addresses into strings - **/ - -#include "orconfig.h" -#include "lib/cc/torint.h" -#include "lib/net/ipv4.h" -#include "lib/string/printf.h" -#include "lib/string/scanf.h" - -#ifdef HAVE_ARPA_INET_H -#include -#endif -#ifdef _WIN32 -#include -#endif - -/** Set *addr to the IP address (in dotted-quad notation) stored in *str. - * Return 1 on success, 0 if *str is badly formatted. - * (Like inet_aton(str,addr), but works on Windows and Solaris.) - */ -int -tor_inet_aton(const char *str, struct in_addr* addr) -{ - unsigned a,b,c,d; - char more; - if (tor_sscanf(str, "%3u.%3u.%3u.%3u%c", &a,&b,&c,&d,&more) != 4) - return 0; - if (a > 255) return 0; - if (b > 255) return 0; - if (c > 255) return 0; - if (d > 255) return 0; - addr->s_addr = htonl((a<<24) | (b<<16) | (c<<8) | d); - return 1; -} - -/** Given an IPv4 in_addr struct *in (in network order, as usual), - * write it as a string into the buf_len-byte buffer in - * buf. Returns a non-negative integer on success. - * Returns -1 on failure. - */ -int -tor_inet_ntoa(const struct in_addr *in, char *buf, size_t buf_len) -{ - uint32_t a = ntohl(in->s_addr); - return tor_snprintf(buf, buf_len, "%d.%d.%d.%d", - (int)(uint8_t)((a>>24)&0xff), - (int)(uint8_t)((a>>16)&0xff), - (int)(uint8_t)((a>>8 )&0xff), - (int)(uint8_t)((a )&0xff)); -} diff --git a/src/tools/tor-gencert.c b/src/tools/tor-gencert.c index ce032ed643..c1cda07972 100644 --- a/src/tools/tor-gencert.c +++ b/src/tools/tor-gencert.c @@ -41,7 +41,7 @@ ENABLE_GCC_WARNING(redundant-decls) #include "lib/log/torlog.h" #include "lib/malloc/util_malloc.h" #include "lib/net/address.h" -#include "lib/net/ipv4.h" +#include "lib/net/inaddr.h" #include "lib/string/compat_string.h" #include "lib/string/printf.h" -- 2.47.3