diff options
Diffstat (limited to 'source4')
| -rw-r--r-- | source4/auth/kerberos/config.mk | 2 | ||||
| -rw-r--r-- | source4/heimdal_build/config.m4 | 73 | ||||
| -rw-r--r-- | source4/heimdal_build/config.mk | 44 | ||||
| -rw-r--r-- | source4/lib/replace/getaddrinfo.c | 502 | ||||
| -rw-r--r-- | source4/lib/replace/getaddrinfo.h | 158 | ||||
| -rw-r--r-- | source4/lib/replace/inet_ntop.c | 191 | ||||
| -rw-r--r-- | source4/lib/replace/inet_ntop.m4 | 1 | ||||
| -rw-r--r-- | source4/lib/replace/inet_pton.c | 213 | ||||
| -rw-r--r-- | source4/lib/replace/inet_pton.m4 | 1 | ||||
| -rw-r--r-- | source4/lib/replace/libreplace.m4 | 43 | ||||
| -rw-r--r-- | source4/lib/replace/replace.h | 21 | ||||
| -rw-r--r-- | source4/lib/replace/system/network.h | 4 |
12 files changed, 1129 insertions, 124 deletions
diff --git a/source4/auth/kerberos/config.mk b/source4/auth/kerberos/config.mk index f75fd99323..87c62fb6ed 100644 --- a/source4/auth/kerberos/config.mk +++ b/source4/auth/kerberos/config.mk @@ -10,6 +10,6 @@ OBJ_FILES = kerberos.o \ gssapi_parse.o \ krb5_init_context.o PUBLIC_DEPENDENCIES = HEIMDAL_KRB5 NDR_KRB5PAC samba-socket LIBCLI_RESOLVE -PRIVATE_DEPENDENCIES = ASN1_UTIL HEIMDAL_ROKEN_ADDRINFO auth_sam CREDENTIALS_KRB5 +PRIVATE_DEPENDENCIES = ASN1_UTIL auth_sam CREDENTIALS_KRB5 # End SUBSYSTEM KERBEROS ################################# diff --git a/source4/heimdal_build/config.m4 b/source4/heimdal_build/config.m4 index 01a620c1c5..8c0959550b 100644 --- a/source4/heimdal_build/config.m4 +++ b/source4/heimdal_build/config.m4 @@ -71,8 +71,6 @@ AC_CHECK_FUNCS([ \ cgetent \ getprogname \ inet_aton \ - inet_ntop \ - inet_pton \ gethostname \ getnameinfo \ iruserok \ @@ -100,8 +98,6 @@ AC_CHECK_FUNCS([ \ errx \ warnx \ flock \ - getaddrinfo \ - freeaddrinfo \ getipnodebyname \ getipnodebyaddr \ freehostent \ @@ -229,49 +225,6 @@ SMB_ENABLE(KERBEROS_LIB, YES) SMB_ENABLE(asn1_compile, YES) SMB_ENABLE(compile_et, YES) -# only add getaddrinfo and related functions if needed -SMB_ENABLE(HEIMDAL_ROKEN_ADDRINFO, NO) -if test t$ac_cv_func_getaddrinfo != tyes; then - SMB_ENABLE(HEIMDAL_ROKEN_ADDRINFO, YES) -fi - -SMB_ENABLE(HEIMDAL_ROKEN_GETNAMEINFO, NO) -if test t$ac_cv_func_getnameinfo != tyes; then - SMB_ENABLE(HEIMDAL_ROKEN_GETNAMEINFO, YES) -fi - -# only add inet_aton if needed -SMB_ENABLE(HEIMDAL_ROKEN_INET_ATON, NO) -if test t$ac_cv_func_inet_aton != tyes; then - SMB_ENABLE(HEIMDAL_ROKEN_INET_ATON, YES) -fi - -SMB_ENABLE(HEIMDAL_ROKEN_INET_NTOP, NO) -if test x"$ac_cv_func_inet_ntop" = x"no"; then - AC_CHECK_LIB_EXT(nsl_s, NSL_LIBS, inet_ntop) - AC_CHECK_LIB_EXT(nsl, NSL_LIBS, inet_ntop) - if test x"$ac_cv_lib_ext_nsl_s_inet_ntop" != x"yes" && - test x"$ac_cv_lib_ext_nsl_inet_ntop" != x"yes"; then - SMB_ENABLE(HEIMDAL_ROKEN_INET_NTOP, YES) - else - SMB_ENABLE(NSL,YES) - fi -fi - -SMB_ENABLE(HEIMDAL_ROKEN_INET_PTON, NO) -if test x"$ac_cv_func_inet_pton" = x"no"; then - AC_CHECK_LIB_EXT(nsl_s, NSL_LIBS, inet_pton) - AC_CHECK_LIB_EXT(nsl, NSL_LIBS, inet_pton) - if test x"$ac_cv_lib_ext_nsl_s_inet_pton" != x"yes" && - test x"$ac_cv_lib_ext_nsl_inet_pton" != x"yes"; then - SMB_ENABLE(HEIMDAL_ROKEN_INET_PTON, YES) - else - SMB_ENABLE(NSL,YES) - fi -fi - -SMB_EXT_LIB(NSL,[${NSL_LIBS}],[],[],[]) - # only add closefrom if needed SMB_ENABLE(HEIMDAL_ROKEN_CLOSEFROM, NO) if test t$ac_cv_func_closefrom != tyes; then @@ -285,29 +238,3 @@ if test t$ac_cv_func_getprogname != tyes; then SMB_ENABLE(HEIMDAL_ROKEN_GETPROGNAME, YES) SMB_ENABLE(HEIMDAL_ROKEN_GETPROGNAME_H, YES) fi - -# only add gai_strerror if needed -SMB_ENABLE(HEIMDAL_ROKEN_GAI_STRERROR, NO) -AC_CHECK_FUNC(gai_strerror) - -if test t$ac_cv_func_gai_strerror != tyes; then - AC_CHECK_LIB_EXT(nsl, GAI_LIBS, gai_strerror) - AC_CHECK_LIB_EXT(socket, GAI_LIBS, gai_strerror) - AC_CHECK_LIB_EXT(xnet, GAI_LIBS, gai_strerror) - - dnl We can't just call AC_CHECK_FUNCS(gai_strerror) here, because the value - dnl has been cached. - if test x"$ac_cv_lib_ext_nsl_gai_strerror" = x"yes" || - test x"$ac_cv_lib_ext_socket_gai_strerror" = x"yes" || - test x"$ac_cv_lib_ext_xnet_gai_strerror" = x"yes"; then - AC_DEFINE(HAVE_GAI_STRERROR,1,[Whether the system has gai_strerror()]) - SMB_ENABLE(GAI, YES) - else - SMB_ENABLE(HEIMDAL_ROKEN_GAI_STRERROR, YES) - fi - -else - AC_DEFINE(HAVE_GAI_STRERROR,1,[Whether gai_strerror() is available]) -fi - -SMB_EXT_LIB(GAI,[${GAI_LIBS}],[${GAI_CFLAGS}],[${GAI_CPPFLAGS}],[${GAI_LDFLAGS}]) diff --git a/source4/heimdal_build/config.mk b/source4/heimdal_build/config.mk index 940d9cdb9c..ce5fa6e98e 100644 --- a/source4/heimdal_build/config.mk +++ b/source4/heimdal_build/config.mk @@ -369,24 +369,6 @@ OBJ_FILES = \ # End SUBSYSTEM HEIMDAL_HX509 ####################### -####################### -# Start SUBSYSTEM HEIMDAL_ROKEN_GAI_STRERROR -[SUBSYSTEM::HEIMDAL_ROKEN_GAI_STRERROR] -CFLAGS = -Iheimdal_build -Iheimdal/lib/roken -Ilib/socket_wrapper -OBJ_FILES = ../heimdal/lib/roken/gai_strerror.o - -[SUBSYSTEM::HEIMDAL_ROKEN_INET_ATON] -CFLAGS = -Iheimdal_build -Iheimdal/lib/roken -Ilib/socket_wrapper -OBJ_FILES = ../heimdal/lib/roken/inet_aton.o - -[SUBSYSTEM::HEIMDAL_ROKEN_INET_NTOP] -CFLAGS = -Iheimdal_build -Iheimdal/lib/roken -Ilib/socket_wrapper -OBJ_FILES = ../heimdal/lib/roken/inet_ntop.o - -[SUBSYSTEM::HEIMDAL_ROKEN_INET_PTON] -CFLAGS = -Iheimdal_build -Iheimdal/lib/roken -Ilib/socket_wrapper -OBJ_FILES = ../heimdal/lib/roken/inet_pton.o - [SUBSYSTEM::HEIMDAL_ROKEN_GETPROGNAME] CFLAGS = -Iheimdal_build -Iheimdal/lib/roken -Ilib/socket_wrapper OBJ_FILES = ../heimdal/lib/roken/getprogname.o @@ -399,24 +381,6 @@ OBJ_FILES = ../heimdal/lib/roken/closefrom.o CFLAGS = -Iheimdal_build -Iheimdal/lib/roken -Ilib/socket_wrapper OBJ_FILES = ../heimdal/lib/roken/getprogname.ho -[SUBSYSTEM::HEIMDAL_ROKEN_GETNAMEINFO] -CFLAGS = -Iheimdal_build -Iheimdal/lib/roken -Ilib/socket_wrapper -OBJ_FILES = ../heimdal/lib/roken/getnameinfo.o - -####################### -# Start SUBSYSTEM HEIMDAL_ROKEN_ADDRINFO -[SUBSYSTEM::HEIMDAL_ROKEN_ADDRINFO] -CFLAGS = -Iheimdal_build -Iheimdal/lib/roken -OBJ_FILES = \ - ../heimdal/lib/roken/getaddrinfo.o \ - ../heimdal/lib/roken/freeaddrinfo.o \ - ../heimdal/lib/roken/getipnodebyaddr.o \ - ../heimdal/lib/roken/getipnodebyname.o \ - ../heimdal/lib/roken/freehostent.o \ - ../heimdal/lib/roken/copyhostent.o \ - ../heimdal/lib/roken/hostent_find_fqdn.o -PRIVATE_DEPENDENCIES = HEIMDAL_ROKEN_INET_PTON EXT_SOCKET - ####################### # Start SUBSYSTEM HEIMDAL_ROKEN [SUBSYSTEM::HEIMDAL_ROKEN] @@ -453,16 +417,8 @@ OBJ_FILES = \ ../heimdal/lib/roken/rtbl.o \ replace.o PUBLIC_DEPENDENCIES = \ - HEIMDAL_ROKEN_ADDRINFO \ - HEIMDAL_ROKEN_GAI_STRERROR \ - HEIMDAL_ROKEN_INET_ATON \ - HEIMDAL_ROKEN_INET_NTOP \ - HEIMDAL_ROKEN_INET_PTON \ HEIMDAL_ROKEN_GETPROGNAME \ HEIMDAL_ROKEN_CLOSEFROM \ - HEIMDAL_ROKEN_GETNAMEINFO \ - GAI \ - NSL \ RESOLV \ EXT_SOCKET # End SUBSYSTEM HEIMDAL_ROKEN diff --git a/source4/lib/replace/getaddrinfo.c b/source4/lib/replace/getaddrinfo.c new file mode 100644 index 0000000000..519c30066b --- /dev/null +++ b/source4/lib/replace/getaddrinfo.c @@ -0,0 +1,502 @@ +/* +PostgreSQL Database Management System +(formerly known as Postgres, then as Postgres95) + +Portions Copyright (c) 1996-2005, The PostgreSQL Global Development Group + +Portions Copyright (c) 1994, The Regents of the University of California + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose, without fee, and without a written agreement +is hereby granted, provided that the above copyright notice and this paragraph +and the following two paragraphs appear in all copies. + +IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR +DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING +LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, +EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF +SUCH DAMAGE. + +THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, +INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY +AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS +ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS +TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. + +*/ + +/*------------------------------------------------------------------------- + * + * getaddrinfo.c + * Support getaddrinfo() on platforms that don't have it. + * + * We also supply getnameinfo() here, assuming that the platform will have + * it if and only if it has getaddrinfo(). If this proves false on some + * platform, we'll need to split this file and provide a separate configure + * test for getnameinfo(). + * + * Copyright (c) 2003-2007, PostgreSQL Global Development Group + * + * Copyright (C) 2007 Jeremy Allison. + * Modified to return multiple IPv4 addresses for Samba. + * + *------------------------------------------------------------------------- + */ + +#include "replace.h" +#include "system/network.h" + +#ifndef SMB_MALLOC +#define SMB_MALLOC(s) malloc(s) +#endif + +#ifndef SMB_STRDUP +#define SMB_STRDUP(s) strdup(s) +#endif + +static int check_hostent_err(struct hostent *hp) +{ + if (!hp) { + switch (h_errno) { + case HOST_NOT_FOUND: + case NO_DATA: + return EAI_NONAME; + case TRY_AGAIN: + return EAI_AGAIN; + case NO_RECOVERY: + default: + return EAI_FAIL; + } + } + if (!hp->h_name || hp->h_addrtype != AF_INET) { + return EAI_FAIL; + } + return 0; +} + +static char *canon_name_from_hostent(struct hostent *hp, + int *perr) +{ + char *ret = NULL; + + *perr = check_hostent_err(hp); + if (*perr) { + return NULL; + } + ret = SMB_STRDUP(hp->h_name); + if (!ret) { + *perr = EAI_MEMORY; + } + return ret; +} + +static char *get_my_canon_name(int *perr) +{ + char name[HOST_NAME_MAX+1]; + + if (gethostname(name, HOST_NAME_MAX) == -1) { + *perr = EAI_FAIL; + return NULL; + } + /* Ensure null termination. */ + name[HOST_NAME_MAX] = '\0'; + return canon_name_from_hostent(gethostbyname(name), perr); +} + +static char *get_canon_name_from_addr(struct in_addr ip, + int *perr) +{ + return canon_name_from_hostent( + gethostbyaddr(&ip, sizeof(ip), AF_INET), + perr); +} + +static struct addrinfo *alloc_entry(const struct addrinfo *hints, + struct in_addr ip, + unsigned short port) +{ + struct sockaddr_in *psin = NULL; + struct addrinfo *ai = SMB_MALLOC(sizeof(*ai)); + + if (!ai) { + return NULL; + } + memset(ai, '\0', sizeof(*ai)); + + psin = SMB_MALLOC(sizeof(*psin)); + if (!psin) { + free(ai); + return NULL; + } + + memset(psin, '\0', sizeof(*psin)); + + psin->sin_family = AF_INET; + psin->sin_port = htons(port); + psin->sin_addr = ip; + + ai->ai_flags = 0; + ai->ai_family = AF_INET; + ai->ai_socktype = hints->ai_socktype; + ai->ai_protocol = hints->ai_protocol; + ai->ai_addrlen = sizeof(*psin); + ai->ai_addr = (struct sockaddr *) psin; + ai->ai_canonname = NULL; + ai->ai_next = NULL; + + return ai; +} + +/* + * get address info for a single ipv4 address. + * + * Bugs: - servname can only be a number, not text. + */ + +static int getaddr_info_single_addr(const char *service, + uint32_t addr, + const struct addrinfo *hints, + struct addrinfo **res) +{ + + struct addrinfo *ai = NULL; + struct in_addr ip; + unsigned short port = 0; + + if (service) { + port = (unsigned short)atoi(service); + } + ip.s_addr = htonl(addr); + + ai = alloc_entry(hints, ip, port); + if (!ai) { + return EAI_MEMORY; + } + + /* If we're asked for the canonical name, + * make sure it returns correctly. */ + if (!(hints->ai_flags & AI_NUMERICSERV) && + hints->ai_flags & AI_CANONNAME) { + int err; + if (addr == INADDR_LOOPBACK || addr == INADDR_ANY) { + ai->ai_canonname = get_my_canon_name(&err); + } else { + ai->ai_canonname = + get_canon_name_from_addr(ip,&err); + } + if (ai->ai_canonname == NULL) { + freeaddrinfo(ai); + return err; + } + } + + *res = ai; + return 0; +} + +/* + * get address info for multiple ipv4 addresses. + * + * Bugs: - servname can only be a number, not text. + */ + +static int getaddr_info_name(const char *node, + const char *service, + const struct addrinfo *hints, + struct addrinfo **res) +{ + struct addrinfo *listp = NULL, *prevp = NULL; + char **pptr = NULL; + int err; + struct hostent *hp = NULL; + unsigned short port = 0; + + if (service) { + port = (unsigned short)atoi(service); + } + + hp = gethostbyname(node); + err = check_hostent_err(hp); + if (err) { + return err; + } + + for(pptr = hp->h_addr_list; *pptr; pptr++) { + struct in_addr ip = *(struct in_addr *)pptr; + struct addrinfo *ai = alloc_entry(hints, ip, port); + + if (!ai) { + freeaddrinfo(listp); + return EAI_MEMORY; + } + + if (!listp) { + listp = ai; + prevp = ai; + ai->ai_canonname = SMB_STRDUP(hp->h_name); + if (!ai->ai_canonname) { + freeaddrinfo(listp); + return EAI_MEMORY; + } + } else { + prevp->ai_next = ai; + prevp = ai; + } + } + *res = listp; + return 0; +} + +/* + * get address info for ipv4 sockets. + * + * Bugs: - servname can only be a number, not text. + */ + +int getaddrinfo(const char *node, + const char *service, + const struct addrinfo * hintp, + struct addrinfo ** res) +{ + struct addrinfo hints; + + /* Setup the hints struct. */ + if (hintp == NULL) { + memset(&hints, 0, sizeof(hints)); + hints.ai_family = AF_INET; + hints.ai_socktype = SOCK_STREAM; + } else { + memcpy(&hints, hintp, sizeof(hints)); + } + + if (hints.ai_family != AF_INET && hints.ai_family != AF_UNSPEC) { + return EAI_FAMILY; + } + + if (hints.ai_socktype == 0) { + hints.ai_socktype = SOCK_STREAM; + } + + if (!node && !service) { + return EAI_NONAME; + } + + if (node) { + if (node[0] == '\0') { + return getaddr_info_single_addr(service, + INADDR_ANY, + &hints, + res); + } else if (hints.ai_flags & AI_NUMERICHOST) { + struct in_addr ip; + if (!inet_aton(node, &ip)) { + return EAI_FAIL; + } + return getaddr_info_single_addr(service, + ntohl(ip.s_addr), + &hints, + res); + } else { + return getaddr_info_name(node, + service, + &hints, + res); + } + } else if (hints.ai_flags & AI_PASSIVE) { + return getaddr_info_single_addr(service, + INADDR_ANY, + &hints, + res); + } + return getaddr_info_single_addr(service, + INADDR_LOOPBACK, + &hints, + res); +} + + +void freeaddrinfo(struct addrinfo *res) +{ + struct addrinfo *next = NULL; + + for (;res; res = next) { + next = res->ai_next; + if (res->ai_canonname) { + free(res->ai_canonname); + } + if (res->ai_addr) { + free(res->ai_addr); + } + free(res); + } +} + + +const char *gai_strerror(int errcode) +{ +#ifdef HAVE_HSTRERROR + int hcode; + + switch (errcode) + { + case EAI_NONAME: + hcode = HOST_NOT_FOUND; + break; + case EAI_AGAIN: + hcode = TRY_AGAIN; + break; + case EAI_FAIL: + default: + hcode = NO_RECOVERY; + break; + } + + return hstrerror(hcode); +#else /* !HAVE_HSTRERROR */ + + switch (errcode) + { + case EAI_NONAME: + return "Unknown host"; + case EAI_AGAIN: + return "Host name lookup failure"; +#ifdef EAI_BADFLAGS + case EAI_BADFLAGS: + return "Invalid argument"; +#endif +#ifdef EAI_FAMILY + case EAI_FAMILY: + return "Address family not supported"; +#endif +#ifdef EAI_MEMORY + case EAI_MEMORY: + return "Not enough memory"; +#endif +#ifdef EAI_NODATA + case EAI_NODATA: + return "No host data of that type was found"; +#endif +#ifdef EAI_SERVICE + case EAI_SERVICE: + return "Class type not found"; +#endif +#ifdef EAI_SOCKTYPE + case EAI_SOCKTYPE: + return "Socket type not supported"; +#endif + default: + return "Unknown server error"; + } +#endif /* HAVE_HSTRERROR */ +} + +static int gethostnameinfo(const struct sockaddr *sa, + char *node, + size_t nodelen, + int flags) +{ + int ret = -1; + char *p = NULL; + + if (!(flags & NI_NUMERICHOST)) { + struct hostent *hp = gethostbyaddr( + &((struct sockaddr_in *)sa)->sin_addr, + sizeof(struct in_addr), + sa->sa_family); + ret = check_hostent_err(hp); + if (ret == 0) { + /* Name looked up successfully. */ + ret = snprintf(node, nodelen, "%s", hp->h_name); + if (ret == -1 || ret > nodelen) { + return EAI_MEMORY; + } + if (flags & NI_NOFQDN) { + p = strchr(node,'.'); + if (p) { + *p = '\0'; + } + } + return 0; + } + + if (flags & NI_NAMEREQD) { + /* If we require a name and didn't get one, + * automatically fail. */ + return ret; + } + /* Otherwise just fall into the numeric host code... */ + } + p = inet_ntoa(((struct sockaddr_in *)sa)->sin_addr); + ret = snprintf(node, nodelen, "%s", p); + if (ret == -1 || ret > nodelen) { + return EAI_MEMORY; + } + return 0; +} + +static int getservicenameinfo(const struct sockaddr *sa, + char *service, + size_t servicelen, + int flags) +{ + int ret = -1; + int port = ntohs(((struct sockaddr_in *)sa)->sin_port); + + if (!(flags & NI_NUMERICSERV)) { + struct servent *se = getservbyport( + port, + (flags & NI_DGRAM) ? "udp" : "tcp"); + if (se && se->s_name) { + /* Service name looked up successfully. */ + ret = snprintf(service, servicelen, "%s", se->s_name); + if (ret == -1 || ret > servicelen) { + return EAI_MEMORY; + } + return 0; + } + /* Otherwise just fall into the numeric service code... */ + } + ret = snprintf(service, servicelen, "%d", port); + if (ret == -1 || ret > servicelen) { + return EAI_MEMORY; + } + return 0; +} + +/* + * Convert an ipv4 address to a hostname. + * + * Bugs: - No IPv6 support. + */ +int getnameinfo(const struct sockaddr *sa, socklen_t salen, + char *node, size_t nodelen, + char *service, size_t servicelen, int flags) +{ + + /* Invalid arguments. */ + if (sa == NULL || (node == NULL && service == NULL)) { + return EAI_FAIL; + } + + if (sa->sa_family != AF_INET) { + return EAI_FAIL; + } + + if (salen < sizeof(struct sockaddr_in)) { + return EAI_FAIL; + } + + /* We don't support those. */ + if ((node && !(flags & NI_NUMERICHOST)) + || (service && !(flags & NI_NUMERICSERV))) + return EAI_FAIL; + + if (node) { + return gethostnameinfo(sa, node, nodelen, flags); + } + + if (service) { + return getservicenameinfo(sa, service, servicelen, flags); + } + return 0; +} diff --git a/source4/lib/replace/getaddrinfo.h b/source4/lib/replace/getaddrinfo.h new file mode 100644 index 0000000000..ed678bd065 --- /dev/null +++ b/source4/lib/replace/getaddrinfo.h @@ -0,0 +1,158 @@ +/* +PostgreSQL Database Management System +(formerly known as Postgres, then as Postgres95) + +Portions Copyright (c) 1996-2005, The PostgreSQL Global Development Group + +Portions Copyright (c) 1994, The Regents of the University of California + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose, without fee, and without a written agreement +is hereby granted, provided that the above copyright notice and this paragraph +and the following two paragraphs appear in all copies. + +IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR +DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING +LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, +EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF +SUCH DAMAGE. + +THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, +INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY +AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS +ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS +TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. + +*/ + +/*------------------------------------------------------------------------- + * + * getaddrinfo.h + * Support getaddrinfo() on platforms that don't have it. + * + * Note: we use our own routines on platforms that don't HAVE_STRUCT_ADDRINFO, + * whether or not the library routine getaddrinfo() can be found. This + * policy is needed because on some platforms a manually installed libbind.a + * may provide getaddrinfo(), yet the system headers may not provide the + * struct definitions needed to call it. To avoid conflict with the libbind + * definition in such cases, we rename our routines to pg_xxx() via macros. + * + * This code will also work on platforms where struct addrinfo is defined + * in the system headers but no getaddrinfo() can be located. + * + * Copyright (c) 2003-2007, PostgreSQL Global Development Group + * + *------------------------------------------------------------------------- + */ +#ifndef GETADDRINFO_H +#define GETADDRINFO_H + + +/* Various macros that ought to be in <netdb.h>, but might not be */ + +#ifndef EAI_FAIL +#define EAI_BADFLAGS (-1) +#define EAI_NONAME (-2) +#define EAI_AGAIN (-3) +#define EAI_FAIL (-4) +#define EAI_FAMILY (-6) +#define EAI_SOCKTYPE (-7) +#define EAI_SERVICE (-8) +#define EAI_MEMORY (-10) +#define EAI_SYSTEM (-11) +#endif /* !EAI_FAIL */ + +#ifndef AI_PASSIVE +#define AI_PASSIVE 0x0001 +#endif + +#ifndef AI_NUMERICHOST +/* + * some platforms don't support AI_NUMERICHOST; define as zero if using + * the system version of getaddrinfo... + */ +#if defined(HAVE_STRUCT_ADDRINFO) && defined(HAVE_GETADDRINFO) +#define AI_NUMERICHOST 0 +#else +#define AI_NUMERICHOST 0x0004 +#endif +#endif + +#ifndef NI_NUMERICHOST +#define NI_NUMERICHOST 1 +#endif + +#ifndef NI_NUMERICSERV +#define NI_NUMERICSERV 2 +#endif + +#ifndef NI_NOFQDN +#define NI_NOFQDN 4 +#endif + +#ifndef NI_NAMEREQD +#define NI_NAMEREQD 8 +#endif + +#ifndef NI_DGRAM +#define NI_DGRAM 16 +#endif + + +#ifndef NI_MAXHOST +#define NI_MAXHOST 1025 +#endif + +#ifndef NI_MAXSERV +#define NI_MAXSERV 32 +#endif + +#ifndef HAVE_STRUCT_ADDRINFO + +struct addrinfo +{ + int ai_flags; + int ai_family; + int ai_socktype; + int ai_protocol; + size_t ai_addrlen; + struct sockaddr *ai_addr; + char *ai_canonname; + struct addrinfo *ai_next; +}; +#endif /* HAVE_STRUCT_ADDRINFO */ + + +#ifndef HAVE_GETADDRINFO + +/* Rename private copies per comments above */ +#ifdef getaddrinfo +#undef getaddrinfo +#endif +#define getaddrinfo pg_getaddrinfo + +#ifdef freeaddrinfo +#undef freeaddrinfo +#endif +#define freeaddrinfo pg_freeaddrinfo + +#ifdef gai_strerror +#undef gai_strerror +#endif +#define gai_strerror pg_gai_strerror + +#ifdef getnameinfo +#undef getnameinfo +#endif +#define getnameinfo pg_getnameinfo + +extern int getaddrinfo(const char *node, const char *service, + const struct addrinfo * hints, struct addrinfo ** res); +extern void freeaddrinfo(struct addrinfo * res); +extern const char *gai_strerror(int errcode); +extern int getnameinfo(const struct sockaddr * sa, socklen_t salen, + char *node, size_t nodelen, + char *service, size_t servicelen, int flags); +#endif /* HAVE_GETADDRINFO */ + +#endif /* GETADDRINFO_H */ diff --git a/source4/lib/replace/inet_ntop.c b/source4/lib/replace/inet_ntop.c new file mode 100644 index 0000000000..fb3d8e90c8 --- /dev/null +++ b/source4/lib/replace/inet_ntop.c @@ -0,0 +1,191 @@ +/* + * Copyright (C) 1996-2001 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. + */ + + +#include "replace.h" +#include "system/network.h" + +#define NS_INT16SZ 2 +#define NS_IN6ADDRSZ 16 + +/* + * WARNING: Don't even consider trying to compile this on a system where + * sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX. + */ + +static const char *inet_ntop4(const unsigned char *src, char *dst, + socklen_t size); + +#ifdef AF_INET6 +static const char *inet_ntop6(const unsigned char *src, char *dst, + socklen_t size); +#endif + +/* char * + * isc_net_ntop(af, src, dst, size) + * convert a network format address to presentation format. + * return: + * pointer to presentation format address (`dst'), or NULL (see errno). + * author: + * Paul Vixie, 1996. + */ +const char * +rep_inet_ntop(int af, const void *src, char *dst, socklen_t size) +{ + switch (af) { + case AF_INET: + return (inet_ntop4(src, dst, size)); +#ifdef AF_INET6 + case AF_INET6: + return (inet_ntop6(src, dst, size)); +#endif + default: + errno = EAFNOSUPPORT; + return (NULL); + } + /* NOTREACHED */ +} + +/* const char * + * inet_ntop4(src, dst, size) + * format an IPv4 address + * return: + * `dst' (as a const) + * notes: + * (1) uses no statics + * (2) takes a unsigned char* not an in_addr as input + * author: + * Paul Vixie, 1996. + */ +static const char * +inet_ntop4(const unsigned char *src, char *dst, socklen_t size) +{ + static const char *fmt = "%u.%u.%u.%u"; + char tmp[sizeof "255.255.255.255"]; + size_t len; + + len = snprintf(tmp, sizeof tmp, fmt, src[0], src[1], src[2], src[3]); + if (len >= size) { + errno = ENOSPC; + return (NULL); + } + memcpy(dst, tmp, len + 1); + + return (dst); +} + +/* const char * + * isc_inet_ntop6(src, dst, size) + * convert IPv6 binary address into presentation (printable) format + * author: + * Paul Vixie, 1996. + */ +#ifdef AF_INET6 +static const char * +inet_ntop6(const unsigned char *src, char *dst, socklen_t size) +{ + /* + * Note that int32_t and int16_t need only be "at least" large enough + * to contain a value of the specified size. On some systems, like + * Crays, there is no such thing as an integer variable with 16 bits. + * Keep this in mind if you think this function should have been coded + * to use pointer overlays. All the world's not a VAX. + */ + char tmp[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"], *tp; + struct { int base, len; } best, cur; + unsigned int words[NS_IN6ADDRSZ / NS_INT16SZ]; + int i, inc; + + /* + * Preprocess: + * Copy the input (bytewise) array into a wordwise array. + * Find the longest run of 0x00's in src[] for :: shorthanding. + */ + memset(words, '\0', sizeof words); + for (i = 0; i < NS_IN6ADDRSZ; i++) + words[i / 2] |= (src[i] << ((1 - (i % 2)) << 3)); + best.base = -1; + best.len = 0; + cur.base = -1; + cur.len = 0; + for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++) { + if (words[i] == 0) { + if (cur.base == -1) + cur.base = i, cur.len = 1; + else + cur.len++; + } else { + if (cur.base != -1) { + if (best.base == -1 || cur.len > best.len) + best = cur; + cur.base = -1; + } + } + } + if (cur.base != -1) { + if (best.base == -1 || cur.len > best.len) + best = cur; + } + if (best.base != -1 && best.len < 2) + best.base = -1; + + /* + * Format the result. + */ + tp = tmp; + for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++) { + /* Are we inside the best run of 0x00's? */ + if (best.base != -1 && i >= best.base && + i < (best.base + best.len)) { + if (i == best.base) + *tp++ = ':'; + continue; + } + /* Are we following an initial run of 0x00s or any real hex? */ + if (i != 0) + *tp++ = ':'; + /* Is this address an encapsulated IPv4? */ + if (i == 6 && best.base == 0 && + (best.len == 6 || (best.len == 5 && words[5] == 0xffff))) { + if (!inet_ntop4(src+12, tp, sizeof tmp - (tp - tmp))) + return (NULL); + tp += strlen(tp); + break; + } + inc = snprintf(tp, 5, "%x", words[i]); + if (inc >= 5) { + abort(); + } + tp += inc; + } + /* Was it a trailing run of 0x00's? */ + if (best.base != -1 && (best.base + best.len) == + (NS_IN6ADDRSZ / NS_INT16SZ)) + *tp++ = ':'; + *tp++ = '\0'; + + /* + * Check for overflow, copy, and we're done. + */ + if ((size_t)(tp - tmp) > size) { + errno = ENOSPC; + return (NULL); + } + memcpy(dst, tmp, tp - tmp); + return (dst); +} +#endif /* AF_INET6 */ diff --git a/source4/lib/replace/inet_ntop.m4 b/source4/lib/replace/inet_ntop.m4 new file mode 100644 index 0000000000..6f39056f1d --- /dev/null +++ b/source4/lib/replace/inet_ntop.m4 @@ -0,0 +1 @@ +AC_CHECK_FUNCS(inet_ntop,[],[LIBREPLACEOBJ="${LIBREPLACEOBJ} inet_ntop.o"]) diff --git a/source4/lib/replace/inet_pton.c b/source4/lib/replace/inet_pton.c new file mode 100644 index 0000000000..80e4865ef4 --- /dev/null +++ b/source4/lib/replace/inet_pton.c @@ -0,0 +1,213 @@ +/* + * Copyright (C) 1996-2001 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. + */ + +#include "replace.h" +#include "system/network.h" + +#define NS_INT16SZ 2 +#define NS_INADDRSZ 4 +#define NS_IN6ADDRSZ 16 + +/* + * WARNING: Don't even consider trying to compile this on a system where + * sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX. + */ + +static int inet_pton4(const char *src, unsigned char *dst); +#ifdef AF_INET6 +static int inet_pton6(const char *src, unsigned char *dst); +#endif + +/* int + * inet_pton(af, src, dst) + * convert from presentation format (which usually means ASCII printable) + * to network format (which is usually some kind of binary format). + * return: + * 1 if the address was valid for the specified address family + * 0 if the address wasn't valid (`dst' is untouched in this case) + * -1 if some other error occurred (`dst' is untouched in this case, too) + * author: + * Paul Vixie, 1996. + */ +int +rep_inet_pton(int af, + const char *src, + void *dst) +{ + switch (af) { + case AF_INET: + return (inet_pton4(src, dst)); +#ifdef AF_INET6 + case AF_INET6: + return (inet_pton6(src, dst)); +#endif + default: + errno = EAFNOSUPPORT; + return (-1); + } + /* NOTREACHED */ +} + +/* int + * inet_pton4(src, dst) + * like inet_aton() but without all the hexadecimal and shorthand. + * return: + * 1 if `src' is a valid dotted quad, else 0. + * notice: + * does not touch `dst' unless it's returning 1. + * author: + * Paul Vixie, 1996. + */ +static int +inet_pton4(src, dst) + const char *src; + unsigned char *dst; +{ + static const char digits[] = "0123456789"; + int saw_digit, octets, ch; + unsigned char tmp[NS_INADDRSZ], *tp; + + saw_digit = 0; + octets = 0; + *(tp = tmp) = 0; + while ((ch = *src++) != '\0') { + const char *pch; + + if ((pch = strchr(digits, ch)) != NULL) { + unsigned int new = *tp * 10 + (pch - digits); + + if (new > 255) + return (0); + *tp = new; + if (! saw_digit) { + if (++octets > 4) + return (0); + saw_digit = 1; + } + } else if (ch == '.' && saw_digit) { + if (octets == 4) + return (0); + *++tp = 0; + saw_digit = 0; + } else + return (0); + } + if (octets < 4) + return (0); + memcpy(dst, tmp, NS_INADDRSZ); + return (1); +} + +/* int + * inet_pton6(src, dst) + * convert presentation level address to network order binary form. + * return: + * 1 if `src' is a valid [RFC1884 2.2] address, else 0. + * notice: + * (1) does not touch `dst' unless it's returning 1. + * (2) :: in a full address is silently ignored. + * credit: + * inspired by Mark Andrews. + * author: + * Paul Vixie, 1996. + */ +#ifdef AF_INET6 +static int +inet_pton6(src, dst) + const char *src; + unsigned char *dst; +{ + static const char xdigits_l[] = "0123456789abcdef", + xdigits_u[] = "0123456789ABCDEF"; + unsigned char tmp[NS_IN6ADDRSZ], *tp, *endp, *colonp; + const char *xdigits, *curtok; + int ch, saw_xdigit; + unsigned int val; + + memset((tp = tmp), '\0', NS_IN6ADDRSZ); + endp = tp + NS_IN6ADDRSZ; + colonp = NULL; + /* Leading :: requires some special handling. */ + if (*src == ':') + if (*++src != ':') + return (0); + curtok = src; + saw_xdigit = 0; + val = 0; + while ((ch = *src++) != '\0') { + const char *pch; + + if ((pch = strchr((xdigits = xdigits_l), ch)) == NULL) + pch = strchr((xdigits = xdigits_u), ch); + if (pch != NULL) { + val <<= 4; + val |= (pch - xdigits); + if (val > 0xffff) + return (0); + saw_xdigit = 1; + continue; + } + if (ch == ':') { + curtok = src; + if (!saw_xdigit) { + if (colonp) + return (0); + colonp = tp; + continue; + } + if (tp + NS_INT16SZ > endp) + return (0); + *tp++ = (unsigned char) (val >> 8) & 0xff; + *tp++ = (unsigned char) val & 0xff; + saw_xdigit = 0; + val = 0; + continue; + } + if (ch == '.' && ((tp + NS_INADDRSZ) <= endp) && + inet_pton4(curtok, tp) > 0) { + tp += NS_INADDRSZ; + saw_xdigit = 0; + break; /* '\0' was seen by inet_pton4(). */ + } + return (0); + } + if (saw_xdigit) { + if (tp + NS_INT16SZ > endp) + return (0); + *tp++ = (unsigned char) (val >> 8) & 0xff; + *tp++ = (unsigned char) val & 0xff; + } + if (colonp != NULL) { + /* + * Since some memmove()'s erroneously fail to handle + * overlapping regions, we'll do the shift by hand. + */ + const int n = tp - colonp; + int i; + + for (i = 1; i <= n; i++) { + endp[- i] = colonp[n - i]; + colonp[n - i] = 0; + } + tp = endp; + } + if (tp != endp) + return (0); + memcpy(dst, tmp, NS_IN6ADDRSZ); + return (1); +} +#endif diff --git a/source4/lib/replace/inet_pton.m4 b/source4/lib/replace/inet_pton.m4 new file mode 100644 index 0000000000..51de9275d0 --- /dev/null +++ b/source4/lib/replace/inet_pton.m4 @@ -0,0 +1 @@ +AC_CHECK_FUNCS(inet_pton,[],[LIBREPLACEOBJ="${LIBREPLACEOBJ} inet_pton.o"]) diff --git a/source4/lib/replace/libreplace.m4 b/source4/lib/replace/libreplace.m4 index a6b1c4f5e6..29ec2acdab 100644 --- a/source4/lib/replace/libreplace.m4 +++ b/source4/lib/replace/libreplace.m4 @@ -137,6 +137,45 @@ if test x"$samba_cv_REPLACE_INET_NTOA" = x"yes"; then AC_DEFINE(REPLACE_INET_NTOA,1,[Whether inet_ntoa should be replaced]) fi +dnl test for struct addrinfo +AC_CACHE_CHECK([for struct addrinfo],samba_cv_HAVE_STRUCT_ADDRINFO,[ +AC_TRY_COMPILE([ +#include <sys/types.h> +#include <sys/socket.h> +#include <netdb.h>], +[ +struct addrinfo ai; +], +samba_cv_HAVE_STRUCT_ADDRINFO=yes,samba_cv_HAVE_STRUCT_ADDRINFO=no)]) +if test x"$samba_cv_HAVE_STRUCT_ADDRINFO" = x"yes"; then + AC_DEFINE(HAVE_STRUCT_ADDRINFO,1,[Whether the system has struct addrinfo]) +fi + +dnl test for getaddrinfo/getnameinfo +AC_CACHE_CHECK([for getaddrinfo],samba_cv_HAVE_GETADDRINFO,[ +AC_TRY_COMPILE([ +#include <sys/socket.h> +#include <sys/types.h> +#include <netdb.h>], +[ +struct sockaddr sa; +struct addrinfo *ai = NULL; +int ret = getaddrinfo(NULL, NULL, NULL, &ai); +if (ret != 0) { + const char *es = gai_strerror(ret); +} +freeaddrinfo(ai); +ret = getnameinfo(&sa, sizeof(sa), + NULL, 0, + NULL, 0, 0); + +], +samba_cv_HAVE_GETADDRINFO=yes,samba_cv_HAVE_GETADDRINFO=no)]) +if test x"$samba_cv_HAVE_GETADDRINFO" = x"yes"; then + AC_DEFINE(HAVE_GETADDRINFO,1,[Whether the system has getaddrinfo and getnameinfo]) +fi + + dnl Provided by replace.c: AC_TRY_COMPILE([ #include <sys/types.h> @@ -304,7 +343,7 @@ AC_TRY_COMPILE([ samba_cv_HAVE_OPEN_O_DIRECT=yes,samba_cv_HAVE_OPEN_O_DIRECT=no)]) if test x"$samba_cv_HAVE_OPEN_O_DIRECT" = x"yes"; then AC_DEFINE(HAVE_OPEN_O_DIRECT,1,[Whether the open(2) accepts O_DIRECT]) -fi +fi dnl Check if the C compiler understands volatile (it should, being ANSI). @@ -322,6 +361,8 @@ m4_include(getpass.m4) m4_include(strptime.m4) m4_include(win32.m4) m4_include(timegm.m4) +m4_include(inet_ntop.m4) +m4_include(inet_pton.m4) m4_include(repdir.m4) AC_CHECK_FUNCS([syslog memset memcpy],,[AC_MSG_ERROR([Required function not found])]) diff --git a/source4/lib/replace/replace.h b/source4/lib/replace/replace.h index af05516e8c..26e39ac603 100644 --- a/source4/lib/replace/replace.h +++ b/source4/lib/replace/replace.h @@ -1,15 +1,16 @@ -/* +/* Unix SMB/CIFS implementation. macros to go along with the lib/replace/ portability layer code Copyright (C) Andrew Tridgell 2005 Copyright (C) Jelmer Vernooij 2006 + Copyright (C) Jeremy Allison 2007. ** NOTE! The following LGPL license applies to the replace ** library. This does NOT imply that all of Samba is released ** under the LGPL - + This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either @@ -71,7 +72,6 @@ #include <stddef.h> #endif - #ifndef HAVE_STRERROR extern char *sys_errlist[]; #define strerror(i) sys_errlist[i] @@ -139,7 +139,7 @@ int setenv(const char *name, const char *value, int overwrite); #ifndef HAVE_UNSETENV #define unsetenv rep_unsetenv -int rep_unsetenv(const char *name); +int rep_unsetenv(const char *name); #endif #ifndef HAVE_SETEUID @@ -163,7 +163,7 @@ char *rep_strcasestr(const char *haystack, const char *needle); #endif #ifndef HAVE_STRTOK_R -#define strtok_r rep_strtok_r +#define strtok_r rep_strtok_r char *rep_strtok_r(char *s, const char *delim, char **save_ptr); #endif @@ -330,6 +330,17 @@ ssize_t rep_pread(int __fd, void *__buf, size_t __nbytes, off_t __offset); ssize_t rep_pwrite(int __fd, const void *__buf, size_t __nbytes, off_t __offset); #endif +#ifndef HAVE_INET_PTON +int rep_inet_pton(int af, const char *src, void *dst); +#define inet_pton rep_inet_pton +#endif + +#ifndef HAVE_INET_NTOP +#include "system/network.h" +const char *rep_inet_ntop(int af, const void *src, char *dst, socklen_t size); +#define inet_ntop rep_inet_ntop +#endif + #ifdef HAVE_LIMITS_H #include <limits.h> #endif diff --git a/source4/lib/replace/system/network.h b/source4/lib/replace/system/network.h index 7469040b28..877f5f25e6 100644 --- a/source4/lib/replace/system/network.h +++ b/source4/lib/replace/system/network.h @@ -49,6 +49,10 @@ #include <netinet/tcp.h> #endif +#if !defined(HAVE_GETADDRINFO) +#include "getaddrinfo.h" +#endif + /* * The next three defines are needed to access the IPTOS_* options * on some systems. |