From 9e27a29040b46a10a4f9529370739b6bcfddd753 Mon Sep 17 00:00:00 2001 From: ueno Date: Sat, 7 Oct 2000 19:01:05 +0000 Subject: [PATCH] Importing starttls 0.4+. --- .cvsignore | 13 + .saves-6404-localhost | 2 + COPYING | 340 ++++++++++++++++++++++ ChangeLog | 49 ++++ INSTALL | 182 ++++++++++++ Makefile.am | 14 + README | 10 + bootstrap | 7 + configure.in | 86 ++++++ getaddrinfo.c | 124 ++++++++ getaddrinfo.h | 69 +++++ getopt.c | 755 +++++++++++++++++++++++++++++++++++++++++++++++++ getopt.h | 125 ++++++++ getopt1.c | 183 ++++++++++++ starttls.c | 359 +++++++++++++++++++++++ starttls.el | 86 ++++++ 16 files changed, 2404 insertions(+) create mode 100644 .cvsignore create mode 100644 .saves-6404-localhost create mode 100644 AUTHORS create mode 100644 COPYING create mode 100644 ChangeLog create mode 100644 INSTALL create mode 100644 Makefile.am create mode 100644 NEWS create mode 100644 README create mode 100755 bootstrap create mode 100644 configure.in create mode 100644 getaddrinfo.c create mode 100644 getaddrinfo.h create mode 100644 getopt.c create mode 100644 getopt.h create mode 100644 getopt1.c create mode 100644 starttls.c create mode 100644 starttls.el diff --git a/.cvsignore b/.cvsignore new file mode 100644 index 0000000..92fe7ed --- /dev/null +++ b/.cvsignore @@ -0,0 +1,13 @@ +Makefile +Makefile.in +starttls +aclocal.m4 +configure +config.log +config.status +config.cache +install-sh +mkinstalldirs +missing +elisp-comp + diff --git a/.saves-6404-localhost b/.saves-6404-localhost new file mode 100644 index 0000000..a9b9f49 --- /dev/null +++ b/.saves-6404-localhost @@ -0,0 +1,2 @@ +/home/ueno/starttls-0.4/ChangeLog +/home/ueno/.xemacs/autosave/#\!home\!ueno\!starttls-0.4\!ChangeLog# diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 0000000..e69de29 diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..d60c31a --- /dev/null +++ b/COPYING @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/ChangeLog b/ChangeLog new file mode 100644 index 0000000..44ad9e5 --- /dev/null +++ b/ChangeLog @@ -0,0 +1,49 @@ +2000-10-07 Daiki Ueno + + * .cvsignore: Add `aclocal.m4', `install-sh', `mkinstalldirs', + `missing' and `elisp-comp'. + + * bootstrap: New file. + + * starttls.c: Change author's mail address. + (main): Fix optstring + +2000-08-29 Kenichi OKADA + + * configure.in (AM_INIT_AUTOMAKE): Up. + +2000-08-12 Kenichi OKADA + + * VERSION 0.4 released. + (README): Update + +2000-08-12 Kenichi OKADA + + * starttls.c (main): Use `optind'. + * starttls.el (starttls-open-stream): Put `starttls-extra-args' on + the last arg. + +2000-08-11 Kenichi OKADA + + * VERSION 0.3 released. + +2000-08-11 Kenichi OKADA + + * starttls.c (main): Define optstrings. + New option `--force'. + * starttls.el (starttls-open-ssl-stream): New function. + (starttls-open-stream): Move `starttls-extra-args'. + +2000-08-11 Kenichi OKADA + + * starttls.c: Delete duplicated includes. + +2000-08-10 Kenichi OKADA + + * starttls.c (main): Change `sizeof buffer` to + `BUFSIZ/8' or `BUFSIZ/2'. + +2000-08-10 Kenichi OKADA + + * configure.in: explicate $prefix. + Auto detect OpenSSL libraries. diff --git a/INSTALL b/INSTALL new file mode 100644 index 0000000..b42a17a --- /dev/null +++ b/INSTALL @@ -0,0 +1,182 @@ +Basic Installation +================== + + These are generic installation instructions. + + The `configure' shell script attempts to guess correct values for +various system-dependent variables used during compilation. It uses +those values to create a `Makefile' in each directory of the package. +It may also create one or more `.h' files containing system-dependent +definitions. Finally, it creates a shell script `config.status' that +you can run in the future to recreate the current configuration, a file +`config.cache' that saves the results of its tests to speed up +reconfiguring, and a file `config.log' containing compiler output +(useful mainly for debugging `configure'). + + If you need to do unusual things to compile the package, please try +to figure out how `configure' could check whether to do them, and mail +diffs or instructions to the address given in the `README' so they can +be considered for the next release. If at some point `config.cache' +contains results you don't want to keep, you may remove or edit it. + + The file `configure.in' is used to create `configure' by a program +called `autoconf'. You only need `configure.in' if you want to change +it or regenerate `configure' using a newer version of `autoconf'. + +The simplest way to compile this package is: + + 1. `cd' to the directory containing the package's source code and type + `./configure' to configure the package for your system. If you're + using `csh' on an old version of System V, you might need to type + `sh ./configure' instead to prevent `csh' from trying to execute + `configure' itself. + + Running `configure' takes awhile. While running, it prints some + messages telling which features it is checking for. + + 2. Type `make' to compile the package. + + 3. Optionally, type `make check' to run any self-tests that come with + the package. + + 4. Type `make install' to install the programs and any data files and + documentation. + + 5. You can remove the program binaries and object files from the + source code directory by typing `make clean'. To also remove the + files that `configure' created (so you can compile the package for + a different kind of computer), type `make distclean'. There is + also a `make maintainer-clean' target, but that is intended mainly + for the package's developers. If you use it, you may have to get + all sorts of other programs in order to regenerate files that came + with the distribution. + +Compilers and Options +===================== + + Some systems require unusual options for compilation or linking that +the `configure' script does not know about. You can give `configure' +initial values for variables by setting them in the environment. Using +a Bourne-compatible shell, you can do that on the command line like +this: + CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure + +Or on systems that have the `env' program, you can do it like this: + env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure + +Compiling For Multiple Architectures +==================================== + + You can compile the package for more than one kind of computer at the +same time, by placing the object files for each architecture in their +own directory. To do this, you must use a version of `make' that +supports the `VPATH' variable, such as GNU `make'. `cd' to the +directory where you want the object files and executables to go and run +the `configure' script. `configure' automatically checks for the +source code in the directory that `configure' is in and in `..'. + + If you have to use a `make' that does not supports the `VPATH' +variable, you have to compile the package for one architecture at a time +in the source code directory. After you have installed the package for +one architecture, use `make distclean' before reconfiguring for another +architecture. + +Installation Names +================== + + By default, `make install' will install the package's files in +`/usr/local/bin', `/usr/local/man', etc. You can specify an +installation prefix other than `/usr/local' by giving `configure' the +option `--prefix=PATH'. + + You can specify separate installation prefixes for +architecture-specific files and architecture-independent files. If you +give `configure' the option `--exec-prefix=PATH', the package will use +PATH as the prefix for installing programs and libraries. +Documentation and other data files will still use the regular prefix. + + In addition, if you use an unusual directory layout you can give +options like `--bindir=PATH' to specify different values for particular +kinds of files. Run `configure --help' for a list of the directories +you can set and what kinds of files go in them. + + If the package supports it, you can cause programs to be installed +with an extra prefix or suffix on their names by giving `configure' the +option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. + +Optional Features +================= + + Some packages pay attention to `--enable-FEATURE' options to +`configure', where FEATURE indicates an optional part of the package. +They may also pay attention to `--with-PACKAGE' options, where PACKAGE +is something like `gnu-as' or `x' (for the X Window System). The +`README' should mention any `--enable-' and `--with-' options that the +package recognizes. + + For packages that use the X Window System, `configure' can usually +find the X include and library files automatically, but if it doesn't, +you can use the `configure' options `--x-includes=DIR' and +`--x-libraries=DIR' to specify their locations. + +Specifying the System Type +========================== + + There may be some features `configure' can not figure out +automatically, but needs to determine by the type of host the package +will run on. Usually `configure' can figure that out, but if it prints +a message saying it can not guess the host type, give it the +`--host=TYPE' option. TYPE can either be a short name for the system +type, such as `sun4', or a canonical name with three fields: + CPU-COMPANY-SYSTEM + +See the file `config.sub' for the possible values of each field. If +`config.sub' isn't included in this package, then this package doesn't +need to know the host type. + + If you are building compiler tools for cross-compiling, you can also +use the `--target=TYPE' option to select the type of system they will +produce code for and the `--build=TYPE' option to select the type of +system on which you are compiling the package. + +Sharing Defaults +================ + + If you want to set default values for `configure' scripts to share, +you can create a site shell script called `config.site' that gives +default values for variables like `CC', `cache_file', and `prefix'. +`configure' looks for `PREFIX/share/config.site' if it exists, then +`PREFIX/etc/config.site' if it exists. Or, you can set the +`CONFIG_SITE' environment variable to the location of the site script. +A warning: not all `configure' scripts look for a site script. + +Operation Controls +================== + + `configure' recognizes the following options to control how it +operates. + +`--cache-file=FILE' + Use and save the results of the tests in FILE instead of + `./config.cache'. Set FILE to `/dev/null' to disable caching, for + debugging `configure'. + +`--help' + Print a summary of the options to `configure', and exit. + +`--quiet' +`--silent' +`-q' + Do not print messages saying which checks are being made. To + suppress all normal output, redirect it to `/dev/null' (any error + messages will still be shown). + +`--srcdir=DIR' + Look for the package's source code in directory DIR. Usually + `configure' can determine that directory automatically. + +`--version' + Print the version of Autoconf used to generate the `configure' + script, and exit. + +`configure' also accepts some other, not widely useful, options. diff --git a/Makefile.am b/Makefile.am new file mode 100644 index 0000000..bd817b3 --- /dev/null +++ b/Makefile.am @@ -0,0 +1,14 @@ +## Process this file with automake to produce Makefile.in + +DEFS = -I$(srcdir) $(CFLAGS) @DEFS@ +LIBS = -L. -lutil @LIBS@ +CLEANFILES = starttls +EXTRA_DIST = starttls.el getaddrinfo.c getopt.c getopt1.c + +noinst_LIBRARIES = libutil.a +bin_PROGRAMS= starttls +lisp_LISP = starttls.el + +noinst_HEADERS = getaddrinfo.h getopt.h +libutil_a_SOURCES = getaddrinfo.c getopt.c getopt1.c +starttls_SOURCES = starttls.c diff --git a/NEWS b/NEWS new file mode 100644 index 0000000..e69de29 diff --git a/README b/README new file mode 100644 index 0000000..c0e5cfd --- /dev/null +++ b/README @@ -0,0 +1,10 @@ + +* To obtain updates to this software, ftp directly from + ftp://ftp.opaopa.org/pub/elisp/ + +or + +cvs -d :pserver:guest@opaopa.org:/cvsroot login +Pass: guest +cvs -d :pserver:guest@opaopa.org:/cvsroot co starttls + diff --git a/bootstrap b/bootstrap new file mode 100755 index 0000000..c67fa95 --- /dev/null +++ b/bootstrap @@ -0,0 +1,7 @@ +#! /bin/sh + +aclocal +automake --gnu --add-missing +autoconf + +exit 0 diff --git a/configure.in b/configure.in new file mode 100644 index 0000000..a5716fb --- /dev/null +++ b/configure.in @@ -0,0 +1,86 @@ +AC_INIT(starttls.el) +AM_INIT_AUTOMAKE(starttls, 0.4) + +test x"$prefix" = xNONE && prefix="$ac_default_prefix" + +AM_PATH_LISPDIR + +AC_PROG_CC +AC_ISC_POSIX +AC_PROG_INSTALL +AC_PROG_MAKE_SET +AC_PROG_RANLIB + +AC_CHECK_HEADERS(libgen.h sys/select.h socks.h netinet6/in6.h) + +AC_CHECK_LIB(nsl, gethostbyname) +AC_CHECK_LIB(socket, socket) + +AC_CHECK_TYPE(fd_set, int) + +dnl checking if the system supports ipv6 address space or not +AC_CACHE_CHECK([for struct in6_addr], ac_cv_struct_in6_addr, +[AC_TRY_COMPILE([#include +#include +#include +#include ], [struct in6_addr v6; v6.s6_addr32[3];], +ac_cv_struct_in6_addr=yes, ac_cv_struct_in6_addr=no)]) +test "x$ac_cv_struct_in6_addr" = "xyes" && AC_DEFINE(HAVE_IN6_ADDR) + +dnl checking if the system supports tcp over ipv6 support or not +AC_CACHE_CHECK([for struct sockaddr_in6], ac_cv_struct_sockaddr_in6, +[AC_TRY_COMPILE([#include +#include +#include +#include ], [struct sockaddr_in6 v6; v6.sin6_addr;], +ac_cv_struct_sockaddr_in6=yes, ac_cv_struct_sockaddr_in6=no)]) +test "x$ac_cv_struct_sockaddr_in6" = "xyes" && AC_DEFINE(HAVE_SOCKADDR_IN6) + +dnl +dnl Test for OpenSSL +dnl +AC_ARG_WITH(openssl,[ --with-openssl=PATH use OpenSSL from PATH]) + +case "$with_openssl" in + yes|"") + with_openssl=${prefix}/ssl +esac + +CPPFLAGS="${CPPFLAGS} -I${with_openssl}/include" +AC_CHECK_HEADER(openssl/ssl.h,,with_openssl="no") + +LDFLAGS="${LDFLAGS} -L${with_openssl}/lib" +AC_CHECK_LIB(crypto,BIO_accept,LIBS=" -lcrypto ${LIBS}",with_openssl="no") +AC_CHECK_LIB(ssl,SSL_CTX_new,LIBS=" -lssl ${LIBS}",with_openssl="no") + +AC_MSG_CHECKING(for openssl) +AC_MSG_RESULT($with_openssl) + +if test "$with_openssl" != "no"; then + AC_DEFINE(HAVE_SSL) +else +AC_MSG_ERROR("Unable to find openssl libraries.") +exit 1; +fi + +dnl +dnl Test for BIND8 +dnl +AC_ARG_WITH(bind8, [ --with-bind=PATH use BIND], + with_bind="${withval}") +case "$with_bind" in + ""|no) with_bind="no";; + yes) + AC_CHECK_HEADERS(port_before.h port_after.h);; + *) + CPPFLAGS="${CPPFLAGS} -I${with_bind}/include" + LIBS="${LIBS} -L${with_bind}/lib";; +esac + +if test "$with_bind" != "no"; then + AC_CHECK_LIB(bind, getaddrinfo) +fi + +AC_CHECK_FUNCS(basename getaddrinfo) + +AC_OUTPUT(Makefile) diff --git a/getaddrinfo.c b/getaddrinfo.c new file mode 100644 index 0000000..18eeccf --- /dev/null +++ b/getaddrinfo.c @@ -0,0 +1,124 @@ +/* + * getaddrinfo(2) emulation. + * Copyright (C) 1988, 1989, 1992, 1993 Free Software Foundation, Inc. + + * Author: Daiki Ueno + +This file is not part of any package. + +GNU Emacs is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Emacs is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Emacs; see the file COPYING. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. + */ + +#ifndef HAVE_GETADDRINFO + +#include +#include +#include +#include +#include + +#ifdef HAVE_NETINET6_IN6_H +# include +#endif /* HAVE_NETINET6_IN6_H */ + +#include "getaddrinfo.h" + +int getaddrinfo (hostname, servname, hints, res) + const char *hostname; + const char *servname; + const struct addrinfo *hints; + struct addrinfo **res; +{ + struct hostent *host = NULL; + struct servent *serv = NULL; + struct protoent *proto; + int port = 0; + +#if (defined (HAVE_SOCKADDR_IN6) && defined (INET6)) + struct sockaddr_in6 *sin = + (struct sockaddr_in6 *) calloc (1, sizeof (struct sockaddr_in6)); +#else /* (defined (HAVE_SOCKADDR_IN6) && defined (INET6)) */ + struct sockaddr_in *sin = + (struct sockaddr_in *) calloc (1, sizeof (struct sockaddr_in)); +#endif /* !(defined (HAVE_SOCKADDR_IN6) && defined (INET6)) */ + + struct addrinfo *ai = *res = + (struct addrinfo *) calloc (1, sizeof (struct addrinfo)); + + if ((~ hints->ai_flags & AI_PASSIVE) && hostname && + (host = gethostbyname (hostname)) == NULL) { + perror ("gethostbyname"); + return EAI_NONAME; + } + + if (hints->ai_protocol && + (proto = getprotobynumber (hints->ai_protocol)) == NULL) { + perror ("getprotobynumber"); + return EAI_NONAME; + } + + if (servname) + if (isdigit (servname[0])) + port = atoi (servname); + else { + if ((serv = getservbyname (servname, proto->p_name)) == NULL) { + perror ("getservbyname"); + return EAI_NONAME; + } + port = serv->s_port; + } + +#if (defined (HAVE_SOCKADDR_IN6) && defined (INET6)) + if (host) + memcpy (&sin->sin6_addr, host->h_addr, host->h_length); + sin->sin6_port = htons (port); +#else /* (defined (HAVE_SOCKADDR_IN6) && defined (INET6)) */ + if (host) + memcpy (&sin->sin_addr, host->h_addr, host->h_length); + sin->sin_port = htons (port); +#endif /* !(defined (HAVE_SOCKADDR_IN6) && defined (INET6)) */ + + if (hints->ai_family == AF_UNSPEC) + ai->ai_family = host->h_addrtype; + else + ai->ai_family = hints->ai_family; +#if (defined (HAVE_SOCKADDR_IN6) && defined (INET6)) + sin->sin6_family = ai->ai_family; +#else /* (defined (HAVE_SOCKADDR_IN6) && defined (INET6)) */ + sin->sin_family = ai->ai_family; +#endif /* !(defined (HAVE_SOCKADDR_IN6) && defined (INET6)) */ + + ai->ai_protocol = hints->ai_protocol; + ai->ai_socktype = hints->ai_socktype; + ai->ai_addrlen = sizeof (*sin); + ai->ai_addr = (struct sockaddr *)sin; + + return 0; +} + +void freeaddrinfo (ai) + struct addrinfo *ai; +{ + struct addrinfo *p; + + while (ai != NULL) { + p = ai; + ai = ai->ai_next; + free (p); + } +} + +#endif /* HAVE_GETADDRINFO */ diff --git a/getaddrinfo.h b/getaddrinfo.h new file mode 100644 index 0000000..4989653 --- /dev/null +++ b/getaddrinfo.h @@ -0,0 +1,69 @@ +/* + * getaddrinfo(2) emulation. + * Copyright (C) 1988, 1989, 1992, 1993 Free Software Foundation, Inc. + + * Author: Daiki Ueno + +This file is not part of any package. + +GNU Emacs is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Emacs is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Emacs; see the file COPYING. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. + */ +struct addrinfo { + int ai_flags; + int ai_family; + int ai_socktype; + int ai_protocol; + size_t ai_addrlen; + char *ai_canonname; + struct sockaddr *ai_addr; + struct addrinfo *ai_next; +}; + +/* Possible values for `ai_flags' field in `addrinfo' structure. */ +# define AI_PASSIVE 1 /* Socket address is intended for `bind'. */ +# define AI_CANONNAME 2 /* Request for canonical name. */ +# define AI_NUMERICHOST 4 /* Don't use name resolution. */ +# define AI_MASK 7 + +/* Error values for `getaddrinfo' function. */ +#define EAI_BADFLAGS -1 /* Invalid value for `ai_flags' field. */ +#define EAI_NONAME -2 /* NAME or SERVICE is unknown. */ +#define EAI_AGAIN -3 /* Temporary failure in name resolution. */ +#define EAI_FAIL -4 /* Non-recoverable failure in name res. */ +#define EAI_NODATA -5 /* No address associated with NAME. */ +#define EAI_FAMILY -6 /* `ai_family' not supported. */ +#define EAI_SOCKTYPE -7 /* `ai_socktype' not supported. */ +#define EAI_SERVICE -8 /* SERVICE not supported for `ai_socktype'. */ +#define EAI_ADDRFAMILY -9 /* Address family for NAME not supported. */ +#define EAI_MEMORY -10 /* Memory allocation failure. */ +#define EAI_SYSTEM -11 /* System error returned in `errno'. */ + +#define NI_MAXHOST 1025 +#define NI_MAXSERV 32 + +#define NI_NUMERICHOST 1 /* Don't try to look up hostname. */ +#define NI_NUMERICSERV 2 /* Don't convert port number to name. */ +#define NI_NOFQDN 4 /* Only return nodename portion. */ +#define NI_NAMEREQD 8 /* Don't return numeric addresses. */ +#define NI_DGRAM 16 /* Look up UDP service rather than TCP. */ + +extern int getaddrinfo (const char *, const char *, const struct addrinfo *, + struct addrinfo **); + +extern void freeaddrinfo (struct addrinfo *ai); + + + diff --git a/getopt.c b/getopt.c new file mode 100644 index 0000000..b5caccd --- /dev/null +++ b/getopt.c @@ -0,0 +1,755 @@ +/* Getopt for GNU. + NOTE: getopt is now part of the C library, so if you don't know what + "Keep this file name-space clean" means, talk to roland@gnu.ai.mit.edu + before changing it! + + Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94 + Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by the + Free Software Foundation; either version 2, or (at your option) any + later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. */ + +/* This tells Alpha OSF/1 not to define a getopt prototype in . + Ditto for AIX 3.2 and . */ +#ifndef _NO_PROTO +#define _NO_PROTO +#endif + +#ifdef HAVE_CONFIG_H +#if defined (emacs) || defined (CONFIG_BROKETS) +/* We use instead of "config.h" so that a compilation + using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h + (which it would do because it found this file in $srcdir). */ +#include +#else +#include "config.h" +#endif +#endif + +#ifndef __STDC__ +/* This is a separate conditional since some stdc systems + reject `defined (const)'. */ +#ifndef const +#define const +#endif +#endif + +#include + +#ifdef HAVE_STRING_H +#include +#endif + +/* Comment out all this code if we are using the GNU C Library, and are not + actually compiling the library itself. This code is part of the GNU C + Library, but also included in many other GNU distributions. Compiling + and linking in this code is a waste when using the GNU C library + (especially if it is a shared library). Rather than having every GNU + program understand `configure --with-gnu-libc' and omit the object files, + it is simpler to just do this in the source for each such file. */ + +#if defined (_LIBC) || !defined (__GNU_LIBRARY__) + + +/* This needs to come after some library #include + to get __GNU_LIBRARY__ defined. */ +#ifdef __GNU_LIBRARY__ +/* Don't include stdlib.h for non-GNU C libraries because some of them + contain conflicting prototypes for getopt. */ +#include +#endif /* GNU C library. */ + +/* This version of `getopt' appears to the caller like standard Unix `getopt' + but it behaves differently for the user, since it allows the user + to intersperse the options with the other arguments. + + As `getopt' works, it permutes the elements of ARGV so that, + when it is done, all the options precede everything else. Thus + all application programs are extended to handle flexible argument order. + + Setting the environment variable POSIXLY_CORRECT disables permutation. + Then the behavior is completely standard. + + GNU application programs can use a third alternative mode in which + they can distinguish the relative order of options and other arguments. */ + +#include "getopt.h" + +/* For communication from `getopt' to the caller. + When `getopt' finds an option that takes an argument, + the argument value is returned here. + Also, when `ordering' is RETURN_IN_ORDER, + each non-option ARGV-element is returned here. */ + +char *optarg = NULL; + +/* Index in ARGV of the next element to be scanned. + This is used for communication to and from the caller + and for communication between successive calls to `getopt'. + + On entry to `getopt', zero means this is the first call; initialize. + + When `getopt' returns EOF, this is the index of the first of the + non-option elements that the caller should itself scan. + + Otherwise, `optind' communicates from one call to the next + how much of ARGV has been scanned so far. */ + +/* XXX 1003.2 says this must be 1 before any call. */ +int optind = 0; + +/* The next char to be scanned in the option-element + in which the last option character we returned was found. + This allows us to pick up the scan where we left off. + + If this is zero, or a null string, it means resume the scan + by advancing to the next ARGV-element. */ + +static char *nextchar; + +/* Callers store zero here to inhibit the error message + for unrecognized options. */ + +int opterr = 1; + +/* Set to an option character which was unrecognized. + This must be initialized on some systems to avoid linking in the + system's own getopt implementation. */ + +int optopt = '?'; + +/* Describe how to deal with options that follow non-option ARGV-elements. + + If the caller did not specify anything, + the default is REQUIRE_ORDER if the environment variable + POSIXLY_CORRECT is defined, PERMUTE otherwise. + + REQUIRE_ORDER means don't recognize them as options; + stop option processing when the first non-option is seen. + This is what Unix does. + This mode of operation is selected by either setting the environment + variable POSIXLY_CORRECT, or using `+' as the first character + of the list of option characters. + + PERMUTE is the default. We permute the contents of ARGV as we scan, + so that eventually all the non-options are at the end. This allows options + to be given in any order, even with programs that were not written to + expect this. + + RETURN_IN_ORDER is an option available to programs that were written + to expect options and other ARGV-elements in any order and that care about + the ordering of the two. We describe each non-option ARGV-element + as if it were the argument of an option with character code 1. + Using `-' as the first character of the list of option characters + selects this mode of operation. + + The special argument `--' forces an end of option-scanning regardless + of the value of `ordering'. In the case of RETURN_IN_ORDER, only + `--' can cause `getopt' to return EOF with `optind' != ARGC. */ + +static enum +{ + REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER +} ordering; + +/* Value of POSIXLY_CORRECT environment variable. */ +static char *posixly_correct; + +#ifdef __GNU_LIBRARY__ +/* We want to avoid inclusion of string.h with non-GNU libraries + because there are many ways it can cause trouble. + On some systems, it contains special magic macros that don't work + in GCC. */ +#include +#define my_index strchr +#else + +/* Avoid depending on library functions or files + whose names are inconsistent. */ + +char *getenv (); + +static char * +my_index (str, chr) + const char *str; + int chr; +{ + while (*str) + { + if (*str == chr) + return (char *) str; + str++; + } + return 0; +} + +/* If using GCC, we can safely declare strlen this way. + If not using GCC, it is ok not to declare it. */ +#ifdef __GNUC__ +/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h. + That was relevant to code that was here before. */ +#ifndef __STDC__ +/* gcc with -traditional declares the built-in strlen to return int, + and has done so at least since version 2.4.5. -- rms. */ +extern int strlen (const char *); +#endif /* not __STDC__ */ +#endif /* __GNUC__ */ + +#endif /* not __GNU_LIBRARY__ */ + +/* Handle permutation of arguments. */ + +/* Describe the part of ARGV that contains non-options that have + been skipped. `first_nonopt' is the index in ARGV of the first of them; + `last_nonopt' is the index after the last of them. */ + +static int first_nonopt; +static int last_nonopt; + +/* Exchange two adjacent subsequences of ARGV. + One subsequence is elements [first_nonopt,last_nonopt) + which contains all the non-options that have been skipped so far. + The other is elements [last_nonopt,optind), which contains all + the options processed since those non-options were skipped. + + `first_nonopt' and `last_nonopt' are relocated so that they describe + the new indices of the non-options in ARGV after they are moved. */ + +static void +exchange (argv) + char **argv; +{ + int bottom = first_nonopt; + int middle = last_nonopt; + int top = optind; + char *tem; + + /* Exchange the shorter segment with the far end of the longer segment. + That puts the shorter segment into the right place. + It leaves the longer segment in the right place overall, + but it consists of two parts that need to be swapped next. */ + + while (top > middle && middle > bottom) + { + if (top - middle > middle - bottom) + { + /* Bottom segment is the short one. */ + int len = middle - bottom; + register int i; + + /* Swap it with the top part of the top segment. */ + for (i = 0; i < len; i++) + { + tem = argv[bottom + i]; + argv[bottom + i] = argv[top - (middle - bottom) + i]; + argv[top - (middle - bottom) + i] = tem; + } + /* Exclude the moved bottom segment from further swapping. */ + top -= len; + } + else + { + /* Top segment is the short one. */ + int len = top - middle; + register int i; + + /* Swap it with the bottom part of the bottom segment. */ + for (i = 0; i < len; i++) + { + tem = argv[bottom + i]; + argv[bottom + i] = argv[middle + i]; + argv[middle + i] = tem; + } + /* Exclude the moved top segment from further swapping. */ + bottom += len; + } + } + + /* Update records for the slots the non-options now occupy. */ + + first_nonopt += (optind - last_nonopt); + last_nonopt = optind; +} + +/* Initialize the internal data when the first call is made. */ + +static const char * +_getopt_initialize (optstring) + const char *optstring; +{ + /* Start processing options with ARGV-element 1 (since ARGV-element 0 + is the program name); the sequence of previously skipped + non-option ARGV-elements is empty. */ + + first_nonopt = last_nonopt = optind = 1; + + nextchar = NULL; + + posixly_correct = getenv ("POSIXLY_CORRECT"); + + /* Determine how to handle the ordering of options and nonoptions. */ + + if (optstring[0] == '-') + { + ordering = RETURN_IN_ORDER; + ++optstring; + } + else if (optstring[0] == '+') + { + ordering = REQUIRE_ORDER; + ++optstring; + } + else if (posixly_correct != NULL) + ordering = REQUIRE_ORDER; + else + ordering = PERMUTE; + + return optstring; +} + +/* Scan elements of ARGV (whose length is ARGC) for option characters + given in OPTSTRING. + + If an element of ARGV starts with '-', and is not exactly "-" or "--", + then it is an option element. The characters of this element + (aside from the initial '-') are option characters. If `getopt' + is called repeatedly, it returns successively each of the option characters + from each of the option elements. + + If `getopt' finds another option character, it returns that character, + updating `optind' and `nextchar' so that the next call to `getopt' can + resume the scan with the following option character or ARGV-element. + + If there are no more option characters, `getopt' returns `EOF'. + Then `optind' is the index in ARGV of the first ARGV-element + that is not an option. (The ARGV-elements have been permuted + so that those that are not options now come last.) + + OPTSTRING is a string containing the legitimate option characters. + If an option character is seen that is not listed in OPTSTRING, + return '?' after printing an error message. If you set `opterr' to + zero, the error message is suppressed but we still return '?'. + + If a char in OPTSTRING is followed by a colon, that means it wants an arg, + so the following text in the same ARGV-element, or the text of the following + ARGV-element, is returned in `optarg'. Two colons mean an option that + wants an optional arg; if there is text in the current ARGV-element, + it is returned in `optarg', otherwise `optarg' is set to zero. + + If OPTSTRING starts with `-' or `+', it requests different methods of + handling the non-option ARGV-elements. + See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above. + + Long-named options begin with `--' instead of `-'. + Their names may be abbreviated as long as the abbreviation is unique + or is an exact match for some defined option. If they have an + argument, it follows the option name in the same ARGV-element, separated + from the option name by a `=', or else the in next ARGV-element. + When `getopt' finds a long-named option, it returns 0 if that option's + `flag' field is nonzero, the value of the option's `val' field + if the `flag' field is zero. + + The elements of ARGV aren't really const, because we permute them. + But we pretend they're const in the prototype to be compatible + with other systems. + + LONGOPTS is a vector of `struct option' terminated by an + element containing a name which is zero. + + LONGIND returns the index in LONGOPT of the long-named option found. + It is only valid when a long-named option has been found by the most + recent call. + + If LONG_ONLY is nonzero, '-' as well as '--' can introduce + long-named options. */ + +int +_getopt_internal (argc, argv, optstring, longopts, longind, long_only) + int argc; + char *const *argv; + const char *optstring; + const struct option *longopts; + int *longind; + int long_only; +{ + optarg = NULL; + + if (optind == 0) + optstring = _getopt_initialize (optstring); + + if (nextchar == NULL || *nextchar == '\0') + { + /* Advance to the next ARGV-element. */ + + if (ordering == PERMUTE) + { + /* If we have just processed some options following some non-options, + exchange them so that the options come first. */ + + if (first_nonopt != last_nonopt && last_nonopt != optind) + exchange ((char **) argv); + else if (last_nonopt != optind) + first_nonopt = optind; + + /* Skip any additional non-options + and extend the range of non-options previously skipped. */ + + while (optind < argc + && (argv[optind][0] != '-' || argv[optind][1] == '\0')) + optind++; + last_nonopt = optind; + } + + /* The special ARGV-element `--' means premature end of options. + Skip it like a null option, + then exchange with previous non-options as if it were an option, + then skip everything else like a non-option. */ + + if (optind != argc && !strcmp (argv[optind], "--")) + { + optind++; + + if (first_nonopt != last_nonopt && last_nonopt != optind) + exchange ((char **) argv); + else if (first_nonopt == last_nonopt) + first_nonopt = optind; + last_nonopt = argc; + + optind = argc; + } + + /* If we have done all the ARGV-elements, stop the scan + and back over any non-options that we skipped and permuted. */ + + if (optind == argc) + { + /* Set the next-arg-index to point at the non-options + that we previously skipped, so the caller will digest them. */ + if (first_nonopt != last_nonopt) + optind = first_nonopt; + return EOF; + } + + /* If we have come to a non-option and did not permute it, + either stop the scan or describe it to the caller and pass it by. */ + + if ((argv[optind][0] != '-' || argv[optind][1] == '\0')) + { + if (ordering == REQUIRE_ORDER) + return EOF; + optarg = argv[optind++]; + return 1; + } + + /* We have found another option-ARGV-element. + Skip the initial punctuation. */ + + nextchar = (argv[optind] + 1 + + (longopts != NULL && argv[optind][1] == '-')); + } + + /* Decode the current option-ARGV-element. */ + + /* Check whether the ARGV-element is a long option. + + If long_only and the ARGV-element has the form "-f", where f is + a valid short option, don't consider it an abbreviated form of + a long option that starts with f. Otherwise there would be no + way to give the -f short option. + + On the other hand, if there's a long option "fubar" and + the ARGV-element is "-fu", do consider that an abbreviation of + the long option, just like "--fu", and not "-f" with arg "u". + + This distinction seems to be the most useful approach. */ + + if (longopts != NULL + && (argv[optind][1] == '-' + || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1]))))) + { + char *nameend; + const struct option *p; + const struct option *pfound = NULL; + int exact = 0; + int ambig = 0; + int indfound; + int option_index; + + for (nameend = nextchar; *nameend && *nameend != '='; nameend++) + /* Do nothing. */ ; + + /* Test all long options for either exact match + or abbreviated matches. */ + for (p = longopts, option_index = 0; p->name; p++, option_index++) + if (!strncmp (p->name, nextchar, nameend - nextchar)) + { + if (nameend - nextchar == (int) strlen (p->name)) + { + /* Exact match found. */ + pfound = p; + indfound = option_index; + exact = 1; + break; + } + else if (pfound == NULL) + { + /* First nonexact match found. */ + pfound = p; + indfound = option_index; + } + else + /* Second or later nonexact match found. */ + ambig = 1; + } + + if (ambig && !exact) + { + if (opterr) + fprintf (stderr, "%s: option `%s' is ambiguous\n", + argv[0], argv[optind]); + nextchar += strlen (nextchar); + optind++; + return '?'; + } + + if (pfound != NULL) + { + option_index = indfound; + optind++; + if (*nameend) + { + /* Don't test has_arg with >, because some C compilers don't + allow it to be used on enums. */ + if (pfound->has_arg) + optarg = nameend + 1; + else + { + if (opterr) + { + if (argv[optind - 1][1] == '-') + /* --option */ + fprintf (stderr, + "%s: option `--%s' doesn't allow an argument\n", + argv[0], pfound->name); + else + /* +option or -option */ + fprintf (stderr, + "%s: option `%c%s' doesn't allow an argument\n", + argv[0], argv[optind - 1][0], pfound->name); + } + nextchar += strlen (nextchar); + return '?'; + } + } + else if (pfound->has_arg == 1) + { + if (optind < argc) + optarg = argv[optind++]; + else + { + if (opterr) + fprintf (stderr, "%s: option `%s' requires an argument\n", + argv[0], argv[optind - 1]); + nextchar += strlen (nextchar); + return optstring[0] == ':' ? ':' : '?'; + } + } + nextchar += strlen (nextchar); + if (longind != NULL) + *longind = option_index; + if (pfound->flag) + { + *(pfound->flag) = pfound->val; + return 0; + } + return pfound->val; + } + + /* Can't find it as a long option. If this is not getopt_long_only, + or the option starts with '--' or is not a valid short + option, then it's an error. + Otherwise interpret it as a short option. */ + if (!long_only || argv[optind][1] == '-' + || my_index (optstring, *nextchar) == NULL) + { + if (opterr) + { + if (argv[optind][1] == '-') + /* --option */ + fprintf (stderr, "%s: unrecognized option `--%s'\n", + argv[0], nextchar); + else + /* +option or -option */ + fprintf (stderr, "%s: unrecognized option `%c%s'\n", + argv[0], argv[optind][0], nextchar); + } + nextchar = (char *) ""; + optind++; + return '?'; + } + } + + /* Look at and handle the next short option-character. */ + + { + char c = *nextchar++; + char *temp = my_index (optstring, c); + + /* Increment `optind' when we start to process its last character. */ + if (*nextchar == '\0') + ++optind; + + if (temp == NULL || c == ':') + { + if (opterr) + { + if (posixly_correct) + /* 1003.2 specifies the format of this message. */ + fprintf (stderr, "%s: illegal option -- %c\n", argv[0], c); + else + fprintf (stderr, "%s: invalid option -- %c\n", argv[0], c); + } + optopt = c; + return '?'; + } + if (temp[1] == ':') + { + if (temp[2] == ':') + { + /* This is an option that accepts an argument optionally. */ + if (*nextchar != '\0') + { + optarg = nextchar; + optind++; + } + else + optarg = NULL; + nextchar = NULL; + } + else + { + /* This is an option that requires an argument. */ + if (*nextchar != '\0') + { + optarg = nextchar; + /* If we end this ARGV-element by taking the rest as an arg, + we must advance to the next element now. */ + optind++; + } + else if (optind == argc) + { + if (opterr) + { + /* 1003.2 specifies the format of this message. */ + fprintf (stderr, "%s: option requires an argument -- %c\n", + argv[0], c); + } + optopt = c; + if (optstring[0] == ':') + c = ':'; + else + c = '?'; + } + else + /* We already incremented `optind' once; + increment it again when taking next ARGV-elt as argument. */ + optarg = argv[optind++]; + nextchar = NULL; + } + } + return c; + } +} + +int +getopt (argc, argv, optstring) + int argc; + char *const *argv; + const char *optstring; +{ + return _getopt_internal (argc, argv, optstring, + (const struct option *) 0, + (int *) 0, + 0); +} + +#endif /* _LIBC or not __GNU_LIBRARY__. */ + +#ifdef TEST + +/* Compile with -DTEST to make an executable for use in testing + the above definition of `getopt'. */ + +int +main (argc, argv) + int argc; + char **argv; +{ + int c; + int digit_optind = 0; + + while (1) + { + int this_option_optind = optind ? optind : 1; + + c = getopt (argc, argv, "abc:d:0123456789"); + if (c == EOF) + break; + + switch (c) + { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + if (digit_optind != 0 && digit_optind != this_option_optind) + printf ("digits occur in two different argv-elements.\n"); + digit_optind = this_option_optind; + printf ("option %c\n", c); + break; + + case 'a': + printf ("option a\n"); + break; + + case 'b': + printf ("option b\n"); + break; + + case 'c': + printf ("option c with value `%s'\n", optarg); + break; + + case '?': + break; + + default: + printf ("?? getopt returned character code 0%o ??\n", c); + } + } + + if (optind < argc) + { + printf ("non-option ARGV-elements: "); + while (optind < argc) + printf ("%s ", argv[optind++]); + printf ("\n"); + } + + exit (0); +} + +#endif /* TEST */ diff --git a/getopt.h b/getopt.h new file mode 100644 index 0000000..c872f41 --- /dev/null +++ b/getopt.h @@ -0,0 +1,125 @@ +/* Declarations for getopt. + Copyright (C) 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by the + Free Software Foundation; either version 2, or (at your option) any + later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. */ + +#ifndef _GETOPT_H +#define _GETOPT_H 1 + +#ifdef __cplusplus +extern "C" { +#endif + +/* For communication from `getopt' to the caller. + When `getopt' finds an option that takes an argument, + the argument value is returned here. + Also, when `ordering' is RETURN_IN_ORDER, + each non-option ARGV-element is returned here. */ + +extern char *optarg; + +/* Index in ARGV of the next element to be scanned. + This is used for communication to and from the caller + and for communication between successive calls to `getopt'. + + On entry to `getopt', zero means this is the first call; initialize. + + When `getopt' returns EOF, this is the index of the first of the + non-option elements that the caller should itself scan. + + Otherwise, `optind' communicates from one call to the next + how much of ARGV has been scanned so far. */ + +extern int optind; + +/* Callers store zero here to inhibit the error message `getopt' prints + for unrecognized options. */ + +extern int opterr; + +/* Set to an option character which was unrecognized. */ + +extern int optopt; + +/* Describe the long-named options requested by the application. + The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector + of `struct option' terminated by an element containing a name which is + zero. + + The field `has_arg' is: + no_argument (or 0) if the option does not take an argument, + required_argument (or 1) if the option requires an argument, + optional_argument (or 2) if the option takes an optional argument. + + If the field `flag' is not NULL, it points to a variable that is set + to the value given in the field `val' when the option is found, but + left unchanged if the option is not found. + + To have a long-named option do something other than set an `int' to + a compiled-in constant, such as set a value from `optarg', set the + option's `flag' field to zero and its `val' field to a nonzero + value (the equivalent single-letter option character, if there is + one). For long options that have a zero `flag' field, `getopt' + returns the contents of the `val' field. */ + +struct option +{ +#if __STDC__ + const char *name; +#else + char *name; +#endif + /* has_arg can't be an enum because some compilers complain about + type mismatches in all the code that assumes it is an int. */ + int has_arg; + int *flag; + int val; +}; + +/* Names for the values of the `has_arg' field of `struct option'. */ + +#define no_argument 0 +#define required_argument 1 +#define optional_argument 2 + +#if __STDC__ +#if defined(__GNU_LIBRARY__) +/* Many other libraries have conflicting prototypes for getopt, with + differences in the consts, in stdlib.h. To avoid compilation + errors, only prototype getopt for the GNU C library. */ +extern int getopt (int argc, char *const *argv, const char *shortopts); +#else /* not __GNU_LIBRARY__ */ +extern int getopt (); +#endif /* not __GNU_LIBRARY__ */ +extern int getopt_long (int argc, char *const *argv, const char *shortopts, + const struct option *longopts, int *longind); +extern int getopt_long_only (int argc, char *const *argv, + const char *shortopts, + const struct option *longopts, int *longind); + +/* Internal only. Users should not call this directly. */ +extern int _getopt_internal (int argc, char *const *argv, + const char *shortopts, + const struct option *longopts, int *longind, + int long_only); +#else /* not __STDC__ */ +extern int getopt (); +extern int getopt_long (); +extern int getopt_long_only (); + +extern int _getopt_internal (); +#endif /* not __STDC__ */ + +#ifdef __cplusplus +} +#endif + +#endif /* _GETOPT_H */ diff --git a/getopt1.c b/getopt1.c new file mode 100644 index 0000000..a4f1976 --- /dev/null +++ b/getopt1.c @@ -0,0 +1,183 @@ +/* getopt_long and getopt_long_only entry points for GNU getopt. + Copyright (C) 1987, 88, 89, 90, 91, 92, 1993 + Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by the + Free Software Foundation; either version 2, or (at your option) any + later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. */ + +#ifdef HAVE_CONFIG_H +#if defined (emacs) || defined (CONFIG_BROKETS) +/* We use instead of "config.h" so that a compilation + using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h + (which it would do because it found this file in $srcdir). */ +#include +#else +#include "config.h" +#endif +#endif + +#include "getopt.h" + +#ifndef __STDC__ +/* This is a separate conditional since some stdc systems + reject `defined (const)'. */ +#ifndef const +#define const +#endif +#endif + +#include + +/* Comment out all this code if we are using the GNU C Library, and are not + actually compiling the library itself. This code is part of the GNU C + Library, but also included in many other GNU distributions. Compiling + and linking in this code is a waste when using the GNU C library + (especially if it is a shared library). Rather than having every GNU + program understand `configure --with-gnu-libc' and omit the object files, + it is simpler to just do this in the source for each such file. */ + +#if defined (_LIBC) || !defined (__GNU_LIBRARY__) + + +/* This needs to come after some library #include + to get __GNU_LIBRARY__ defined. */ +#ifdef __GNU_LIBRARY__ +#include +#else +char *getenv (); +#endif + +#ifndef NULL +#define NULL 0 +#endif + +int +getopt_long (argc, argv, options, long_options, opt_index) + int argc; + char *const *argv; + const char *options; + const struct option *long_options; + int *opt_index; +{ + return _getopt_internal (argc, argv, options, long_options, opt_index, 0); +} + +/* Like getopt_long, but '-' as well as '--' can indicate a long option. + If an option that starts with '-' (not '--') doesn't match a long option, + but does match a short option, it is parsed as a short option + instead. */ + +int +getopt_long_only (argc, argv, options, long_options, opt_index) + int argc; + char *const *argv; + const char *options; + const struct option *long_options; + int *opt_index; +{ + return _getopt_internal (argc, argv, options, long_options, opt_index, 1); +} + + +#endif /* _LIBC or not __GNU_LIBRARY__. */ + +#ifdef TEST + +#include + +int +main (argc, argv) + int argc; + char **argv; +{ + int c; + int digit_optind = 0; + + while (1) + { + int this_option_optind = optind ? optind : 1; + int option_index = 0; + static struct option long_options[] = + { + {"add", 1, 0, 0}, + {"append", 0, 0, 0}, + {"delete", 1, 0, 0}, + {"verbose", 0, 0, 0}, + {"create", 0, 0, 0}, + {"file", 1, 0, 0}, + {0, 0, 0, 0} + }; + + c = getopt_long (argc, argv, "abc:d:0123456789", + long_options, &option_index); + if (c == EOF) + break; + + switch (c) + { + case 0: + printf ("option %s", long_options[option_index].name); + if (optarg) + printf (" with arg %s", optarg); + printf ("\n"); + break; + + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + if (digit_optind != 0 && digit_optind != this_option_optind) + printf ("digits occur in two different argv-elements.\n"); + digit_optind = this_option_optind; + printf ("option %c\n", c); + break; + + case 'a': + printf ("option a\n"); + break; + + case 'b': + printf ("option b\n"); + break; + + case 'c': + printf ("option c with value `%s'\n", optarg); + break; + + case 'd': + printf ("option d with value `%s'\n", optarg); + break; + + case '?': + break; + + default: + printf ("?? getopt returned character code 0%o ??\n", c); + } + } + + if (optind < argc) + { + printf ("non-option ARGV-elements: "); + while (optind < argc) + printf ("%s ", argv[optind++]); + printf ("\n"); + } + + exit (0); +} + +#endif /* TEST */ diff --git a/starttls.c b/starttls.c new file mode 100644 index 0000000..778ab48 --- /dev/null +++ b/starttls.c @@ -0,0 +1,359 @@ +/* TLSv1 filter for STARTTLS extension. + + Copyright (C) 1999, 2000 Daiki Ueno + + Author: Daiki Ueno + Kenichi OKADA + Created: 1999-11-19 + Keywords: TLS, OpenSSL + + This file is not part of any package. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with GNU Emacs; see the file COPYING. If not, write to the + Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. + +*/ + +/* + How to compile: (OpenSSL is required) + + gcc -I/usr/local/ssl/include -o starttls starttls.c \ + -L/usr/local/ssl/lib -lssl -lcrypto + +*/ + +#include +#include +#include +#include + +#include + +/* OpenSSL library. */ + +#include +#include +#include +#include +#include +#include + +#ifdef HAVE_SOCKS_H +#include +#endif + +#ifndef HAVE_GETADDRINFO +#include "getaddrinfo.h" +#endif /* !HAVE_GETADDRINFO */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#define _GNU_SOURCE +#include + +#ifdef HAVE_BASENAME +# ifdef HAVE_LIBGEN_H +# include +# ifdef basename +# undef basename +# endif +# endif +# include +#else +inline char * +basename(path) + const char *path; +{ + char *p = rindex((path), '/'); + return p ? p + 1 : (path); +} +#endif + +#define true 1 + +static SSL_CTX *tls_ctx = NULL; +static SSL *tls_conn = NULL; +static int tls_fd; + +static char *opt_cert_file = NULL, *opt_key_file = NULL; +static int opt_verify = 0; +static int opt_force; + +static int +tls_ssl_ctx_new (cert_file, key_file) + const char *cert_file, *key_file; +{ + SSL_load_error_strings (); + SSLeay_add_ssl_algorithms (); + + tls_ctx = SSL_CTX_new (TLSv1_client_method()); + if (!tls_ctx) + return -1; + + SSL_CTX_set_options (tls_ctx, SSL_OP_ALL /* Work around all known bugs */); + + if (cert_file) + { + if (SSL_CTX_use_certificate_file (tls_ctx, cert_file, + SSL_FILETYPE_PEM) <= 0) + return -1; + if (!key_file) + key_file = cert_file; + if (SSL_CTX_use_PrivateKey_file (tls_ctx, key_file, + SSL_FILETYPE_PEM) <= 0) + return -1; + if (!SSL_CTX_check_private_key (tls_ctx)) + return -1; + } + + SSL_CTX_set_verify (tls_ctx, SSL_VERIFY_NONE, NULL); + + return 0; +} + +static int +tls_ssl_new(ctx, s) + SSL_CTX *ctx; + int s; +{ + SSL_SESSION *session; + SSL_CIPHER *cipher; + X509 *peer; + + tls_conn = (SSL *) SSL_new (ctx); + if (!tls_conn) + return -1; + SSL_clear(tls_conn); + + if (!SSL_set_fd (tls_conn, s)) + return -1; + + SSL_set_connect_state (tls_conn); + + if (SSL_connect (tls_conn) <= 0) + { + session = SSL_get_session (tls_conn); + if (session) + SSL_CTX_remove_session (ctx, session); + if (tls_conn!=NULL) + SSL_free (tls_conn); + return -1; + } + + return 0; +} + +static int +tls_connect (hostname, service) + const char *hostname, *service; +{ + struct protoent *proto; + struct addrinfo *in, hints; + int server, false = 0; + + proto = getprotobyname ("tcp"); + if (!proto) + return -1; + + memset (&hints, 0, sizeof (hints)); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + hints.ai_protocol = proto->p_proto; + + if (getaddrinfo (hostname, service, &hints, &in) < 0) + return -1; + + server = socket (in->ai_family, in->ai_socktype, 0); + if (server < 0) + return -1; + + if (setsockopt (server, SOL_SOCKET, SO_KEEPALIVE, + (const char *) &false, sizeof (false))) + return -1; + + if (connect (server, in->ai_addr, in->ai_addrlen) < 0) + { + close (server); + return -1; + } + + return server; +} + +static void +tls_negotiate (sig) + int sig; +{ + if (tls_ssl_ctx_new (opt_cert_file, opt_key_file) == -1) + return; + + (void) tls_ssl_new (tls_ctx, tls_fd); /* Negotiation has done. */ +} + +static void +usage (progname) + const char *progname; +{ + printf ("%s (%s) %s\n" + "Copyright (C) 1999 Free Software Foundation, Inc.\n" + "This program comes with ABSOLUTELY NO WARRANTY.\n" + "This is free software, and you are welcome to redistribute it\n" + "under certain conditions. See the file COPYING for details.\n\n" + "Usage: %s [options] host port\n\n" + "Options:\n\n" + " --cert-file [file] specify certificate file\n" + " --key-file [file] specify private key file\n" + " --verify [level] set verification level\n" + " --force force negotiate\n", + progname, PACKAGE, VERSION, progname); +} + +int +main (argc, argv) + int argc; + char **argv; +{ + int in = fileno (stdin), out = fileno (stdout), + nbuffer, wrote; + fd_set readfds, writefds; + char buffer[BUFSIZ], *retry; + struct sigaction act; + + int this_option_optind = optind ? optind : 1; + int option_index = 0, c; + static struct option long_options[] = + { + {"cert-file", 1, 0, 'c'}, + {"key-file", 1, 0, 'k'}, + {"verify", 1, 0, 'v'}, + {"force", 0, 0, 'f'}, + {0, 0, 0, 0} + }; + + while (1) + { + c = getopt_long (argc, argv, "c:k:v:f", long_options, &option_index); + if (c == -1) + break; + + switch (c) + { + case 'c': + opt_cert_file = optarg; + break; + case 'k': + opt_key_file = optarg; + break; + case 'v': + opt_verify = atoi (optarg); + break; + case 'f': + opt_force = true; + break; + default: + usage (basename (argv[0])); + return 1; + } + } + + if (optind+2 != argc) + { + usage (basename (argv[0])); + return 1; + } + + tls_fd = tls_connect (argv[optind], argv[optind+1]); + if (tls_fd < 0) + { + perror ("tls_connect"); + return 1; + } + + memset (&act, 0, sizeof (act)); + act.sa_handler = tls_negotiate; + sigemptyset (&act.sa_mask); + act.sa_flags = SA_RESTART|SA_RESETHAND; + sigaction (SIGALRM, &act, NULL); + + if (opt_force == true) + tls_negotiate(); + + while (1) + { + FD_SET (tls_fd, &readfds); + FD_SET (in, &readfds); + if (select (tls_fd+1, &readfds, NULL, NULL, NULL) == -1 + && errno != EINTR ) + { + perror ("select"); + return 1; + } + if (FD_ISSET (in, &readfds)) + { + nbuffer = read (in, buffer, BUFSIZ/2); + + if (nbuffer == 0) + goto finish; + for (retry = buffer; nbuffer > 0; nbuffer -= wrote, retry += wrote) + { + FD_SET (tls_fd, &writefds); + if (select (tls_fd+1, NULL, &writefds, NULL, NULL) == -1) + { + perror ("select"); + return 1; + } + if (tls_conn) + wrote = SSL_write (tls_conn, retry, nbuffer); + else + wrote = write (tls_fd, retry, nbuffer); + if (wrote < 0) goto finish; + } + } + if (FD_ISSET (tls_fd, &readfds)) + { + if (tls_conn) + nbuffer = SSL_read (tls_conn, buffer, BUFSIZ/8); + else + nbuffer = read (tls_fd, buffer, BUFSIZ/2); + if (nbuffer == 0) + goto finish; + for (retry = buffer; nbuffer > 0; nbuffer -= wrote, retry += wrote) + { + FD_SET (out, &writefds); + if (select (out+1, NULL, &writefds, NULL, NULL) == -1) + { + perror ("select"); + return 1; + } + wrote = write (out, retry, nbuffer); + if (wrote < 0) goto finish; + } + } + } + + finish: + close (in); + close (out); + + return 0; +} diff --git a/starttls.el b/starttls.el new file mode 100644 index 0000000..a1323c3 --- /dev/null +++ b/starttls.el @@ -0,0 +1,86 @@ +;;; starttls.el --- TLSv1 functions + +;; Copyright (C) 1999 Daiki Ueno + +;; Author: Daiki Ueno +;; Kenichi OKADA +;; Created: 1999/11/20 +;; Keywords: TLS, SSL, OpenSSL + +;; This file is not part of any package. + +;; This program is free software; you can redistribute it and/or +;; modify it under the terms of the GNU General Public License as +;; published by the Free Software Foundation; either version 2, or (at +;; your option) any later version. + +;; This program is distributed in the hope that it will be useful, but +;; WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +;; General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with GNU Emacs; see the file COPYING. If not, write to the +;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, +;; Boston, MA 02111-1307, USA. + +;;; Commentary: + +;; This module defines some utility functions for TLSv1 functions. + +;; [RFC 2246] "The TLS Protocol Version 1.0" +;; by Christopher Allen and +;; Tim Dierks (1999/01) + +;; [RFC 2595] "Using TLS with IMAP, POP3 and ACAP" +;; by Chris Newman (1999/06) + +;;; Code: + +(defgroup starttls nil + "Support for `Transport Layer Security' protocol." + :group 'ssl) + +(defcustom starttls-program "starttls" + "The program to run in a subprocess to open an TLSv1 connection." + :group 'starttls) + +(defcustom starttls-extra-args nil + "Extra arguments to `starttls-program'" + :group 'starttls) + +(defun starttls-negotiate (process) + (signal-process (process-id process) 'SIGALRM)) + +(defun starttls-open-stream (name buffer host service) + "Open a TLS connection for a service to a host. +Returns a subprocess-object to represent the connection. +Input and output work as for subprocesses; `delete-process' closes it. +Args are NAME BUFFER HOST SERVICE. +NAME is name for process. It is modified if necessary to make it unique. +BUFFER is the buffer (or `buffer-name') to associate with the process. + Process output goes at end of that buffer, unless you specify + an output stream or filter function to handle the output. + BUFFER may be also nil, meaning that this process is not associated + with any buffer +Third arg is name of the host to connect to, or its IP address. +Fourth arg SERVICE is name of the service desired, or an integer +specifying a port number to connect to." + + (let* ((process-connection-type nil) + (process (apply #'start-process + name buffer starttls-program + host (format "%s" service) + starttls-extra-args))) + (process-kill-without-query process) + process)) + +(defun starttls-open-ssl-stream (name buffer host service) + "This function is compatible with the function `open-ssl-stream'." + (let* ((starttls-extra-args + (cons "--force" starttls-extra-args))) + (starttls-open-stream name buffer host service))) + +(provide 'starttls) + +;;; starttls.el ends here -- 1.7.10.4