mirror of git://git.gnupg.org/gnupg.git
906 lines
20 KiB
C
906 lines
20 KiB
C
/* gpgsplit.c - An OpenPGP packet splitting tool
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* Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* GnuPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <https://www.gnu.org/licenses/>.
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#include <config.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <unistd.h>
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#include <assert.h>
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#include <sys/types.h>
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#ifdef HAVE_DOSISH_SYSTEM
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# include <fcntl.h> /* for setmode() */
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#endif
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#ifdef HAVE_ZIP
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# include <zlib.h>
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#endif
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#define INCLUDED_BY_MAIN_MODULE 1
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#include "../common/util.h"
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#include "../common/openpgpdefs.h"
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#ifdef HAVE_BZIP2
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# include <bzlib.h>
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#endif /* HAVE_BZIP2 */
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static int opt_verbose;
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static const char *opt_prefix = "";
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static int opt_uncompress;
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static int opt_secret_to_public;
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static int opt_no_split;
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static void g10_exit( int rc );
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static void split_packets (const char *fname);
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enum cmd_and_opt_values {
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aNull = 0,
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oVerbose = 'v',
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oPrefix = 'p',
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oUncompress = 500,
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oSecretToPublic,
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oNoSplit,
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aTest
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};
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static gpgrt_opt_t opts[] = {
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{ 301, NULL, 0, "@Options:\n " },
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{ oVerbose, "verbose", 0, "verbose" },
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{ oPrefix, "prefix", 2, "|STRING|Prepend filenames with STRING" },
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{ oUncompress, "uncompress", 0, "uncompress a packet"},
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{ oSecretToPublic, "secret-to-public", 0, "convert secret keys to public keys"},
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{ oNoSplit, "no-split", 0, "write to stdout and don't actually split"},
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ARGPARSE_end ()
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};
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static const char *
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my_strusage (int level)
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{
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const char *p;
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switch (level)
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{
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case 9: p = "GPL-3.0-or-later"; break;
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case 11: p = "gpgsplit (@GNUPG@)";
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break;
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case 13: p = VERSION; break;
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case 14: p = GNUPG_DEF_COPYRIGHT_LINE; break;
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case 17: p = PRINTABLE_OS_NAME; break;
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case 19: p = "Please report bugs to <@EMAIL@>.\n"; break;
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case 1:
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case 40: p =
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"Usage: gpgsplit [options] [files] (-h for help)";
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break;
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case 41: p =
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"Syntax: gpgsplit [options] [files]\n"
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"Split an OpenPGP message into packets\n";
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break;
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default: p = NULL;
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}
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return p;
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}
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int
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main (int argc, char **argv)
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{
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gpgrt_argparse_t pargs;
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#ifdef HAVE_DOSISH_SYSTEM
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setmode( fileno(stdin), O_BINARY );
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setmode( fileno(stdout), O_BINARY );
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#endif
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log_set_prefix ("gpgsplit", GPGRT_LOG_WITH_PREFIX);
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gpgrt_set_strusage (my_strusage);
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/* Register our string mapper with gpgrt. Usually done in
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* init_common_subsystems, but we don't need that here. */
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gpgrt_set_fixed_string_mapper (map_static_macro_string);
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pargs.argc = &argc;
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pargs.argv = &argv;
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pargs.flags= ARGPARSE_FLAG_KEEP;
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while (gpgrt_argparse (NULL, &pargs, opts))
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{
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switch (pargs.r_opt)
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{
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case oVerbose: opt_verbose = 1; break;
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case oPrefix: opt_prefix = pargs.r.ret_str; break;
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case oUncompress: opt_uncompress = 1; break;
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case oSecretToPublic: opt_secret_to_public = 1; break;
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case oNoSplit: opt_no_split = 1; break;
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default : pargs.err = 2; break;
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}
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}
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gpgrt_argparse (NULL, &pargs, NULL); /* Release internal state. */
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if (log_get_errorcount(0))
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g10_exit (2);
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if (!argc)
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split_packets (NULL);
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else
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{
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for ( ;argc; argc--, argv++)
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split_packets (*argv);
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}
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g10_exit (0);
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return 0;
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}
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static void
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g10_exit (int rc)
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{
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rc = rc? rc : log_get_errorcount(0)? 2 : 0;
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exit(rc );
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}
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static const char *
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pkttype_to_string (int pkttype)
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{
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const char *s;
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switch (pkttype)
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{
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case PKT_PUBKEY_ENC : s = "pk_enc"; break;
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case PKT_SIGNATURE : s = "sig"; break;
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case PKT_SYMKEY_ENC : s = "sym_enc"; break;
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case PKT_ONEPASS_SIG : s = "onepass_sig"; break;
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case PKT_SECRET_KEY : s = "secret_key"; break;
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case PKT_PUBLIC_KEY : s = "public_key"; break;
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case PKT_SECRET_SUBKEY : s = "secret_subkey"; break;
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case PKT_COMPRESSED :
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s = opt_uncompress? "uncompressed":"compressed";
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break;
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case PKT_ENCRYPTED : s = "encrypted"; break;
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case PKT_MARKER : s = "marker"; break;
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case PKT_PLAINTEXT : s = "plaintext"; break;
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case PKT_RING_TRUST : s = "ring_trust"; break;
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case PKT_USER_ID : s = "user_id"; break;
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case PKT_PUBLIC_SUBKEY : s = "public_subkey"; break;
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case PKT_OLD_COMMENT : s = "old_comment"; break;
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case PKT_ATTRIBUTE : s = "attribute"; break;
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case PKT_ENCRYPTED_MDC : s = "encrypted_mdc"; break;
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case PKT_MDC : s = "mdc"; break;
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case PKT_COMMENT : s = "comment"; break;
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case PKT_GPG_CONTROL : s = "gpg_control"; break;
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default: s = "unknown"; break;
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}
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return s;
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}
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/*
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* Create a new filename and a return a pointer to a statically
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* allocated buffer
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*/
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static char *
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create_filename (int pkttype)
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{
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static unsigned int partno = 0;
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static char *name;
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if (!name)
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name = xmalloc (strlen (opt_prefix) + 100 );
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assert (pkttype < 1000 && pkttype >= 0 );
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partno++;
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sprintf (name, "%s%06u-%03d" EXTSEP_S "%.40s",
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opt_prefix, partno, pkttype, pkttype_to_string (pkttype));
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return name;
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}
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static int
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read_u16 (FILE *fp, size_t *rn)
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{
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int c;
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if ( (c = getc (fp)) == EOF )
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return -1;
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*rn = c << 8;
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if ( (c = getc (fp)) == EOF )
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return -1;
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*rn |= c;
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return 0;
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}
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static int
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read_u32 (FILE *fp, unsigned long *rn)
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{
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size_t tmp;
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if (read_u16 (fp, &tmp))
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return -1;
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*rn = tmp << 16;
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if (read_u16 (fp, &tmp))
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return -1;
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*rn |= tmp;
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return 0;
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}
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static int
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write_old_header (FILE *fp, int pkttype, unsigned int len)
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{
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int ctb = (0x80 | ((pkttype & 15)<<2));
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if (len < 256)
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;
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else if (len < 65536)
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ctb |= 1;
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else
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ctb |= 2;
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if ( putc ( ctb, fp) == EOF )
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return -1;
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if ( (ctb & 2) )
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{
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if (putc ((len>>24), fp) == EOF)
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return -1;
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if (putc ((len>>16), fp) == EOF)
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return -1;
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}
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if ( (ctb & 3) )
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{
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if (putc ((len>>8), fp) == EOF)
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return -1;
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}
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if (putc ((len&0xff), fp) == EOF)
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return -1;
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return 0;
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}
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static int
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write_new_header (FILE *fp, int pkttype, unsigned int len)
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{
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if ( putc ((0xc0 | (pkttype & 0x3f)), fp) == EOF )
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return -1;
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if (len < 192)
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{
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if (putc (len, fp) == EOF)
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return -1;
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}
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else if (len < 8384)
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{
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len -= 192;
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if (putc ((len/256)+192, fp) == EOF)
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return -1;
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if (putc ((len%256), fp) == EOF)
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return -1;
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}
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else
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{
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if (putc ( 0xff, fp) == EOF)
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return -1;
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if (putc ( (len >> 24), fp) == EOF)
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return -1;
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if (putc ( (len >> 16), fp) == EOF)
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return -1;
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if (putc ( (len >> 8), fp) == EOF)
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return -1;
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if (putc ( (len & 0xff), fp) == EOF)
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return -1;
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}
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return 0;
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}
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/* Return the length of the public key given BUF of BUFLEN with a
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secret key. */
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static int
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public_key_length (const unsigned char *buf, size_t buflen)
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{
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const unsigned char *s;
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int nmpis;
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/* byte version number (3 or 4)
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u32 creation time
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[u16 valid days (version 3 only)]
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byte algorithm
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n MPIs (n and e) */
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if (!buflen)
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return 0;
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if (buf[0] < 2 || buf[0] > 4)
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return 0; /* wrong version number */
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if (buflen < (buf[0] == 4? 6:8))
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return 0;
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s = buf + (buf[0] == 4? 6:8);
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buflen -= (buf[0] == 4? 6:8);
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switch (s[-1])
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{
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case 1:
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case 2:
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case 3:
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nmpis = 2;
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break;
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case 16:
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case 20:
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nmpis = 3;
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break;
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case 17:
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nmpis = 4;
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break;
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default:
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return 0;
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}
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for (; nmpis; nmpis--)
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{
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unsigned int nbits, nbytes;
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if (buflen < 2)
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return 0;
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nbits = (s[0] << 8) | s[1];
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s += 2; buflen -= 2;
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nbytes = (nbits+7) / 8;
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if (buflen < nbytes)
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return 0;
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s += nbytes; buflen -= nbytes;
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}
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return s - buf;
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}
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#ifdef HAVE_ZIP
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static int
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handle_zlib(int algo,FILE *fpin,FILE *fpout)
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{
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z_stream zs;
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byte *inbuf, *outbuf;
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unsigned int inbufsize, outbufsize;
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int c,zinit_done, zrc, nread, count;
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size_t n;
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memset (&zs, 0, sizeof zs);
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inbufsize = 2048;
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inbuf = xmalloc (inbufsize);
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outbufsize = 8192;
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outbuf = xmalloc (outbufsize);
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zs.avail_in = 0;
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zinit_done = 0;
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do
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{
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if (zs.avail_in < inbufsize)
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{
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n = zs.avail_in;
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if (!n)
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zs.next_in = (Bytef *) inbuf;
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count = inbufsize - n;
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for (nread=0;
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nread < count && (c=getc (fpin)) != EOF;
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nread++)
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inbuf[n+nread] = c;
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n += nread;
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if (nread < count && algo == 1)
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{
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inbuf[n] = 0xFF; /* chew dummy byte */
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n++;
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}
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zs.avail_in = n;
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}
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zs.next_out = (Bytef *) outbuf;
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zs.avail_out = outbufsize;
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if (!zinit_done)
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{
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zrc = (algo == 1? inflateInit2 ( &zs, -13)
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: inflateInit ( &zs ));
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if (zrc != Z_OK)
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{
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log_fatal ("zlib problem: %s\n", zs.msg? zs.msg :
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zrc == Z_MEM_ERROR ? "out of core" :
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zrc == Z_VERSION_ERROR ?
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"invalid lib version" :
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"unknown error" );
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}
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zinit_done = 1;
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}
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else
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{
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#ifdef Z_SYNC_FLUSH
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zrc = inflate (&zs, Z_SYNC_FLUSH);
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#else
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zrc = inflate (&zs, Z_PARTIAL_FLUSH);
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#endif
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if (zrc == Z_STREAM_END)
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; /* eof */
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else if (zrc != Z_OK && zrc != Z_BUF_ERROR)
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{
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if (zs.msg)
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log_fatal ("zlib inflate problem: %s\n", zs.msg );
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else
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log_fatal ("zlib inflate problem: rc=%d\n", zrc );
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}
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for (n=0; n < outbufsize - zs.avail_out; n++)
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{
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if (putc (outbuf[n], fpout) == EOF )
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return 1;
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}
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}
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}
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while (zrc != Z_STREAM_END && zrc != Z_BUF_ERROR);
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{
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int i;
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fputs ("Left over bytes:", stderr);
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for (i=0; i < zs.avail_in; i++)
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fprintf (stderr, " %02X", zs.next_in[i]);
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putc ('\n', stderr);
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}
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inflateEnd (&zs);
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return 0;
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}
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#endif /*HAVE_ZIP*/
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#ifdef HAVE_BZIP2
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static int
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handle_bzip2(int algo,FILE *fpin,FILE *fpout)
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{
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bz_stream bzs;
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byte *inbuf, *outbuf;
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unsigned int inbufsize, outbufsize;
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int c,zinit_done, zrc, nread, count;
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size_t n;
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memset (&bzs, 0, sizeof bzs);
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inbufsize = 2048;
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inbuf = xmalloc (inbufsize);
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outbufsize = 8192;
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outbuf = xmalloc (outbufsize);
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bzs.avail_in = 0;
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zinit_done = 0;
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do
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{
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if (bzs.avail_in < inbufsize)
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{
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n = bzs.avail_in;
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if (!n)
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bzs.next_in = inbuf;
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count = inbufsize - n;
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for (nread=0;
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nread < count && (c=getc (fpin)) != EOF;
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nread++)
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inbuf[n+nread] = c;
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n += nread;
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if (nread < count && algo == 1)
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{
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inbuf[n] = 0xFF; /* chew dummy byte */
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n++;
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}
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bzs.avail_in = n;
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}
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bzs.next_out = outbuf;
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bzs.avail_out = outbufsize;
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if (!zinit_done)
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{
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zrc = BZ2_bzDecompressInit(&bzs,0,0);
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if (zrc != BZ_OK)
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log_fatal ("bz2lib problem: %d\n",zrc);
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zinit_done = 1;
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}
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else
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{
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zrc = BZ2_bzDecompress(&bzs);
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if (zrc == BZ_STREAM_END)
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; /* eof */
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else if (zrc != BZ_OK && zrc != BZ_PARAM_ERROR)
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log_fatal ("bz2lib inflate problem: %d\n", zrc );
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for (n=0; n < outbufsize - bzs.avail_out; n++)
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{
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if (putc (outbuf[n], fpout) == EOF )
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return 1;
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}
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}
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}
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while (zrc != BZ_STREAM_END && zrc != BZ_PARAM_ERROR);
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BZ2_bzDecompressEnd(&bzs);
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return 0;
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}
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#endif /* HAVE_BZIP2 */
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/* hdr must point to a buffer large enough to hold all header bytes */
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static int
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write_part (FILE *fpin, unsigned long pktlen,
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int pkttype, int partial, unsigned char *hdr, size_t hdrlen)
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{
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|
FILE *fpout;
|
|
int c, first;
|
|
unsigned char *p;
|
|
const char *outname = create_filename (pkttype);
|
|
|
|
if (opt_no_split)
|
|
fpout = stdout;
|
|
else
|
|
{
|
|
if (opt_verbose)
|
|
log_info ("writing '%s'\n", outname);
|
|
fpout = fopen (outname, "wb");
|
|
if (!fpout)
|
|
{
|
|
log_error ("error creating '%s': %s\n", outname, strerror(errno));
|
|
/* stop right now, otherwise we would mess up the sequence
|
|
of the part numbers */
|
|
g10_exit (1);
|
|
}
|
|
}
|
|
|
|
if (opt_secret_to_public
|
|
&& (pkttype == PKT_SECRET_KEY || pkttype == PKT_SECRET_SUBKEY))
|
|
{
|
|
unsigned char *blob = xmalloc (pktlen);
|
|
int i, len;
|
|
|
|
pkttype = pkttype == PKT_SECRET_KEY? PKT_PUBLIC_KEY:PKT_PUBLIC_SUBKEY;
|
|
|
|
for (i=0; i < pktlen; i++)
|
|
{
|
|
c = getc (fpin);
|
|
if (c == EOF)
|
|
{
|
|
xfree (blob);
|
|
goto read_error;
|
|
}
|
|
blob[i] = c;
|
|
}
|
|
len = public_key_length (blob, pktlen);
|
|
if (!len)
|
|
{
|
|
log_error ("error calculating public key length\n");
|
|
g10_exit (1);
|
|
}
|
|
if ( (hdr[0] & 0x40) )
|
|
{
|
|
if (write_new_header (fpout, pkttype, len))
|
|
{
|
|
xfree (blob);
|
|
goto write_error;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (write_old_header (fpout, pkttype, len))
|
|
{
|
|
xfree (blob);
|
|
goto write_error;
|
|
}
|
|
}
|
|
|
|
for (i=0; i < len; i++)
|
|
{
|
|
if ( putc (blob[i], fpout) == EOF )
|
|
{
|
|
xfree (blob);
|
|
goto write_error;
|
|
}
|
|
}
|
|
|
|
xfree (blob);
|
|
goto ready;
|
|
}
|
|
|
|
|
|
if (!opt_uncompress)
|
|
{
|
|
for (p=hdr; hdrlen; p++, hdrlen--)
|
|
{
|
|
if ( putc (*p, fpout) == EOF )
|
|
goto write_error;
|
|
}
|
|
}
|
|
|
|
first = 1;
|
|
while (partial)
|
|
{
|
|
size_t partlen;
|
|
|
|
if (partial == 1)
|
|
{ /* openpgp */
|
|
if (first )
|
|
{
|
|
c = pktlen;
|
|
assert( c >= 224 && c < 255 );
|
|
first = 0;
|
|
}
|
|
else if ((c = getc (fpin)) == EOF )
|
|
goto read_error;
|
|
else
|
|
hdr[hdrlen++] = c;
|
|
|
|
if (c < 192)
|
|
{
|
|
pktlen = c;
|
|
partial = 0; /* (last segment may follow) */
|
|
}
|
|
else if (c < 224 )
|
|
{
|
|
pktlen = (c - 192) * 256;
|
|
if ((c = getc (fpin)) == EOF)
|
|
goto read_error;
|
|
hdr[hdrlen++] = c;
|
|
pktlen += c + 192;
|
|
partial = 0;
|
|
}
|
|
else if (c == 255)
|
|
{
|
|
if (read_u32 (fpin, &pktlen))
|
|
goto read_error;
|
|
hdr[hdrlen++] = pktlen >> 24;
|
|
hdr[hdrlen++] = pktlen >> 16;
|
|
hdr[hdrlen++] = pktlen >> 8;
|
|
hdr[hdrlen++] = pktlen;
|
|
partial = 0;
|
|
}
|
|
else
|
|
{ /* next partial body length */
|
|
for (p=hdr; hdrlen; p++, hdrlen--)
|
|
{
|
|
if ( putc (*p, fpout) == EOF )
|
|
goto write_error;
|
|
}
|
|
partlen = 1 << (c & 0x1f);
|
|
for (; partlen; partlen--)
|
|
{
|
|
if ((c = getc (fpin)) == EOF)
|
|
goto read_error;
|
|
if ( putc (c, fpout) == EOF )
|
|
goto write_error;
|
|
}
|
|
}
|
|
}
|
|
else if (partial == 2)
|
|
{ /* old gnupg */
|
|
assert (!pktlen);
|
|
if ( read_u16 (fpin, &partlen) )
|
|
goto read_error;
|
|
hdr[hdrlen++] = partlen >> 8;
|
|
hdr[hdrlen++] = partlen;
|
|
for (p=hdr; hdrlen; p++, hdrlen--)
|
|
{
|
|
if ( putc (*p, fpout) == EOF )
|
|
goto write_error;
|
|
}
|
|
if (!partlen)
|
|
partial = 0; /* end of packet */
|
|
for (; partlen; partlen--)
|
|
{
|
|
c = getc (fpin);
|
|
if (c == EOF)
|
|
goto read_error;
|
|
if ( putc (c, fpout) == EOF )
|
|
goto write_error;
|
|
}
|
|
}
|
|
else
|
|
{ /* compressed: read to end */
|
|
pktlen = 0;
|
|
partial = 0;
|
|
hdrlen = 0;
|
|
if (opt_uncompress)
|
|
{
|
|
if ((c = getc (fpin)) == EOF)
|
|
goto read_error;
|
|
|
|
if (0)
|
|
;
|
|
#ifdef HAVE_ZIP
|
|
else if(c==1 || c==2)
|
|
{
|
|
if(handle_zlib(c,fpin,fpout))
|
|
goto write_error;
|
|
}
|
|
#endif /* HAVE_ZIP */
|
|
#ifdef HAVE_BZIP2
|
|
else if(c==3)
|
|
{
|
|
if(handle_bzip2(c,fpin,fpout))
|
|
goto write_error;
|
|
}
|
|
#endif /* HAVE_BZIP2 */
|
|
else
|
|
{
|
|
log_error("invalid compression algorithm (%d)\n",c);
|
|
goto read_error;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
while ( (c=getc (fpin)) != EOF )
|
|
{
|
|
if ( putc (c, fpout) == EOF )
|
|
goto write_error;
|
|
}
|
|
}
|
|
if (!feof (fpin))
|
|
goto read_error;
|
|
}
|
|
}
|
|
|
|
for (p=hdr; hdrlen; p++, hdrlen--)
|
|
{
|
|
if ( putc (*p, fpout) == EOF )
|
|
goto write_error;
|
|
}
|
|
|
|
/* standard packet or last segment of partial length encoded packet */
|
|
for (; pktlen; pktlen--)
|
|
{
|
|
c = getc (fpin);
|
|
if (c == EOF)
|
|
goto read_error;
|
|
if ( putc (c, fpout) == EOF )
|
|
goto write_error;
|
|
}
|
|
|
|
ready:
|
|
if ( !opt_no_split && fclose (fpout) )
|
|
log_error ("error closing '%s': %s\n", outname, strerror (errno));
|
|
return 0;
|
|
|
|
write_error:
|
|
log_error ("error writing '%s': %s\n", outname, strerror (errno));
|
|
if (!opt_no_split)
|
|
fclose (fpout);
|
|
return 2;
|
|
|
|
read_error:
|
|
if (!opt_no_split)
|
|
{
|
|
int save = errno;
|
|
fclose (fpout);
|
|
errno = save;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
do_split (FILE *fp)
|
|
{
|
|
int c, ctb, pkttype;
|
|
unsigned long pktlen = 0;
|
|
int partial = 0;
|
|
unsigned char header[20];
|
|
int header_idx = 0;
|
|
|
|
ctb = getc (fp);
|
|
if (ctb == EOF)
|
|
return 3; /* ready */
|
|
header[header_idx++] = ctb;
|
|
|
|
if (!(ctb & 0x80))
|
|
{
|
|
log_error("invalid CTB %02x\n", ctb );
|
|
return 1;
|
|
}
|
|
if ( (ctb & 0x40) )
|
|
{ /* new CTB */
|
|
pkttype = (ctb & 0x3f);
|
|
if( (c = getc (fp)) == EOF )
|
|
return -1;
|
|
header[header_idx++] = c;
|
|
|
|
if ( c < 192 )
|
|
pktlen = c;
|
|
else if ( c < 224 )
|
|
{
|
|
pktlen = (c - 192) * 256;
|
|
if( (c = getc (fp)) == EOF )
|
|
return -1;
|
|
header[header_idx++] = c;
|
|
pktlen += c + 192;
|
|
}
|
|
else if ( c == 255 )
|
|
{
|
|
if (read_u32 (fp, &pktlen))
|
|
return -1;
|
|
header[header_idx++] = pktlen >> 24;
|
|
header[header_idx++] = pktlen >> 16;
|
|
header[header_idx++] = pktlen >> 8;
|
|
header[header_idx++] = pktlen;
|
|
}
|
|
else
|
|
{ /* partial body length */
|
|
pktlen = c;
|
|
partial = 1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
int lenbytes;
|
|
|
|
pkttype = (ctb>>2)&0xf;
|
|
lenbytes = ((ctb&3)==3)? 0 : (1<<(ctb & 3));
|
|
if (!lenbytes )
|
|
{
|
|
pktlen = 0; /* don't know the value */
|
|
if( pkttype == PKT_COMPRESSED )
|
|
partial = 3;
|
|
else
|
|
partial = 2; /* the old GnuPG partial length encoding */
|
|
}
|
|
else
|
|
{
|
|
for ( ; lenbytes; lenbytes-- )
|
|
{
|
|
pktlen <<= 8;
|
|
if( (c = getc (fp)) == EOF )
|
|
return -1;
|
|
header[header_idx++] = c;
|
|
|
|
pktlen |= c;
|
|
}
|
|
}
|
|
}
|
|
|
|
return write_part (fp, pktlen, pkttype, partial, header, header_idx);
|
|
}
|
|
|
|
|
|
static void
|
|
split_packets (const char *fname)
|
|
{
|
|
FILE *fp;
|
|
int rc;
|
|
|
|
if (!fname || !strcmp (fname, "-"))
|
|
{
|
|
fp = stdin;
|
|
fname = "-";
|
|
}
|
|
else if ( !(fp = fopen (fname,"rb")) )
|
|
{
|
|
log_error ("can't open '%s': %s\n", fname, strerror (errno));
|
|
return;
|
|
}
|
|
|
|
while ( !(rc = do_split (fp)) )
|
|
;
|
|
if ( rc > 0 )
|
|
; /* error already handled */
|
|
else if ( ferror (fp) )
|
|
log_error ("error reading '%s': %s\n", fname, strerror (errno));
|
|
else
|
|
log_error ("premature EOF while reading '%s'\n", fname );
|
|
|
|
if ( fp != stdin )
|
|
fclose (fp);
|
|
}
|