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* gpgsplit.c: New options --secret-to-public and --no-split.
GNUified the indentation style.
This commit is contained in:
Werner Koch
parent
7e5f9547c5
commit
fc9aa1ecae
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@ -1,3 +1,8 @@
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2002-10-23 Werner Koch <wk@gnupg.org>
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* gpgsplit.c: New options --secret-to-public and --no-split.
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GNUified the indentation style.
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2002-09-25 David Shaw <dshaw@jabberwocky.com>
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* Makefile.am: Link bftest with EGDLIBS (i.e. NETLIBS) as EGD uses
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376
tools/gpgsplit.c
376
tools/gpgsplit.c
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@ -31,11 +31,11 @@
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#include <unistd.h>
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#include <assert.h>
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#ifdef HAVE_DOSISH_SYSTEM
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#include <fcntl.h> /* for setmode() */
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# include <fcntl.h> /* for setmode() */
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#endif
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#include <zlib.h>
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#ifdef __riscos__
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#include <unixlib/local.h>
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# include <unixlib/local.h>
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#endif /* __riscos__ */
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#define INCLUDED_BY_MAIN_MODULE 1
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@ -45,16 +45,23 @@
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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 { aNull = 0,
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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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aTest };
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oSecretToPublic,
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oNoSplit,
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aTest
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};
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static ARGPARSE_OPTS opts[] = {
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@ -64,6 +71,8 @@ static ARGPARSE_OPTS opts[] = {
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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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{0} };
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@ -71,7 +80,8 @@ const char *
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strusage( int level )
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{
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const char *p;
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switch( level ) {
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switch (level)
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{
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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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@ -100,34 +110,39 @@ main( int argc, char **argv )
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{
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ARGPARSE_ARGS pargs;
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#ifdef __riscos__
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#ifdef __riscos__
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/* set global RISC OS specific properties */
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__riscosify_control = __RISCOSIFY_NO_PROCESS;
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#endif /* __riscos__ */
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#ifdef HAVE_DOSISH_SYSTEM
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#endif /* __riscos__ */
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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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#endif
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log_set_name("gpgsplit");
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pargs.argc = &argc;
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pargs.argv = &argv;
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pargs.flags= 1; /* do not remove the args */
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while( optfile_parse( NULL, NULL, NULL, &pargs, opts) ) {
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switch( pargs.r_opt ) {
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while (optfile_parse( NULL, NULL, 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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if( log_get_errorcount(0) )
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g10_exit(2);
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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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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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@ -138,7 +153,7 @@ main( int argc, char **argv )
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static void
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g10_exit( int rc )
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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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@ -148,7 +163,9 @@ 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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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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@ -225,8 +242,131 @@ read_u32 (FILE *fp, unsigned long *rn)
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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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/* hdr must pint to a buffer large enough to hold all header bytes */
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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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/* 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 ( const char *fname, FILE *fpin, unsigned long pktlen,
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int pkttype, int partial, unsigned char *hdr, size_t hdrlen)
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@ -236,53 +376,107 @@ write_part ( const char *fname, FILE *fpin, unsigned long pktlen,
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unsigned char *p;
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const char *outname = create_filename (pkttype);
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/* fixme: should we check that this file does not yet exist? */
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if (opt_no_split)
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fpout = stdout;
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else
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{
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if (opt_verbose)
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log_info ("writing `%s'\n", outname);
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fpout = fopen (outname, "wb");
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if (!fpout) {
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if (!fpout)
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{
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log_error ("error creating `%s': %s\n", outname, strerror(errno));
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/* stop right now, otherwise we would mess up the sequence of
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* the part numbers */
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/* stop right now, otherwise we would mess up the sequence
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of the part numbers */
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g10_exit (1);
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}
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}
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if (!opt_uncompress) {
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for (p=hdr; hdrlen; p++, hdrlen--) {
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if (opt_secret_to_public
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&& (pkttype == PKT_SECRET_KEY || pkttype == PKT_SECRET_SUBKEY))
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{
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unsigned char *blob = m_alloc (pktlen);
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int i, len;
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pkttype = pkttype == PKT_SECRET_KEY? PKT_PUBLIC_KEY:PKT_PUBLIC_SUBKEY;
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for (i=0; i < pktlen; i++)
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{
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c = getc (fpin);
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if (c == EOF)
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goto read_error;
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blob[i] = c;
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}
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len = public_key_length (blob, pktlen);
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if (!len)
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{
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log_error ("error calcualting public key length\n");
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g10_exit (1);
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}
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if ( (hdr[0] & 0x40) )
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{
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if (write_new_header (fpout, pkttype, len))
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goto write_error;
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}
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else
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{
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if (write_old_header (fpout, pkttype, len))
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goto write_error;
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}
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for (i=0; i < len; i++)
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{
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if ( putc (blob[i], fpout) == EOF )
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goto write_error;
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}
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goto ready;
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}
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if (!opt_uncompress)
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{
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for (p=hdr; hdrlen; p++, hdrlen--)
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{
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if ( putc (*p, fpout) == EOF )
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goto write_error;
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}
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}
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first = 1;
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while (partial) {
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while (partial)
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{
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size_t partlen;
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if (partial == 1) { /* openpgp */
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if( first ) {
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if (partial == 1)
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{ /* openpgp */
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if (first )
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{
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c = pktlen;
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assert( c >= 224 && c < 255 );
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first = 0;
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}
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else if( (c = getc (fpin)) == EOF ) {
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else if ((c = getc (fpin)) == EOF )
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goto read_error;
|
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}
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else
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hdr[hdrlen++] = c;
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|
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if( c < 192 ) {
|
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if (c < 192)
|
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{
|
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pktlen = c;
|
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partial = 0; /* (last segment may follow) */
|
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}
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else if( c < 224 ) {
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else if (c < 224 )
|
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{
|
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pktlen = (c - 192) * 256;
|
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if( (c = getc (fpin)) == EOF )
|
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if ((c = getc (fpin)) == EOF)
|
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goto read_error;
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hdr[hdrlen++] = c;
|
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pktlen += c + 192;
|
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partial = 0;
|
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}
|
||||
else if( c == 255 ) {
|
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else if (c == 255)
|
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{
|
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if (read_u32 (fpin, &pktlen))
|
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goto read_error;
|
||||
hdr[hdrlen++] = pktlen >> 24;
|
||||
|
|
@ -291,13 +485,16 @@ write_part ( const char *fname, FILE *fpin, unsigned long pktlen,
|
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hdr[hdrlen++] = pktlen;
|
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partial = 0;
|
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}
|
||||
else { /* next partial body length */
|
||||
for (p=hdr; hdrlen; p++, hdrlen--) {
|
||||
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--) {
|
||||
for (; partlen; partlen--)
|
||||
{
|
||||
if ((c = getc (fpin)) == EOF)
|
||||
goto read_error;
|
||||
if ( putc (c, fpout) == EOF )
|
||||
|
|
@ -305,19 +502,22 @@ write_part ( const char *fname, FILE *fpin, unsigned long pktlen,
|
|||
}
|
||||
}
|
||||
}
|
||||
else if (partial == 2) { /* old gnupg */
|
||||
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--) {
|
||||
for (p=hdr; hdrlen; p++, hdrlen--)
|
||||
{
|
||||
if ( putc (*p, fpout) == EOF )
|
||||
goto write_error;
|
||||
}
|
||||
if (!partlen)
|
||||
partial = 0; /* end of packet */
|
||||
for (; partlen; partlen--) {
|
||||
for (; partlen; partlen--)
|
||||
{
|
||||
c = getc (fpin);
|
||||
if (c == EOF)
|
||||
goto read_error;
|
||||
|
|
@ -325,11 +525,13 @@ write_part ( const char *fname, FILE *fpin, unsigned long pktlen,
|
|||
goto write_error;
|
||||
}
|
||||
}
|
||||
else { /* compressed: read to end */
|
||||
else
|
||||
{ /* compressed: read to end */
|
||||
pktlen = 0;
|
||||
partial = 0;
|
||||
hdrlen = 0;
|
||||
if (opt_uncompress) {
|
||||
if (opt_uncompress)
|
||||
{
|
||||
z_stream zs;
|
||||
byte *inbuf, *outbuf;
|
||||
unsigned int inbufsize, outbufsize;
|
||||
|
|
@ -348,19 +550,22 @@ write_part ( const char *fname, FILE *fpin, unsigned long pktlen,
|
|||
zs.avail_in = 0;
|
||||
zinit_done = 0;
|
||||
|
||||
do {
|
||||
if (zs.avail_in < inbufsize) {
|
||||
do
|
||||
{
|
||||
if (zs.avail_in < inbufsize)
|
||||
{
|
||||
n = zs.avail_in;
|
||||
if (!n)
|
||||
zs.next_in = (Bytef *) inbuf;
|
||||
count = inbufsize - n;
|
||||
for (nread=0;
|
||||
nread < count && (c=getc (fpin)) != EOF;
|
||||
nread++) {
|
||||
nread++)
|
||||
inbuf[n+nread] = c;
|
||||
}
|
||||
|
||||
n += nread;
|
||||
if (nread < count && algo == 1) {
|
||||
if (nread < count && algo == 1)
|
||||
{
|
||||
inbuf[n] = 0xFF; /* chew dummy byte */
|
||||
n++;
|
||||
}
|
||||
|
|
@ -369,10 +574,12 @@ write_part ( const char *fname, FILE *fpin, unsigned long pktlen,
|
|||
zs.next_out = (Bytef *) outbuf;
|
||||
zs.avail_out = outbufsize;
|
||||
|
||||
if (!zinit_done) {
|
||||
zrc = algo == 1? inflateInit2 ( &zs, -13)
|
||||
: inflateInit ( &zs );
|
||||
if (zrc != Z_OK) {
|
||||
if (!zinit_done)
|
||||
{
|
||||
zrc = (algo == 1? inflateInit2 ( &zs, -13)
|
||||
: inflateInit ( &zs ));
|
||||
if (zrc != Z_OK)
|
||||
{
|
||||
log_fatal ("zlib problem: %s\n", zs.msg? zs.msg :
|
||||
zrc == Z_MEM_ERROR ? "out of core" :
|
||||
zrc == Z_VERSION_ERROR ?
|
||||
|
|
@ -381,7 +588,8 @@ write_part ( const char *fname, FILE *fpin, unsigned long pktlen,
|
|||
}
|
||||
zinit_done = 1;
|
||||
}
|
||||
else {
|
||||
else
|
||||
{
|
||||
#ifdef Z_SYNC_FLUSH
|
||||
zrc = inflate (&zs, Z_SYNC_FLUSH);
|
||||
#else
|
||||
|
|
@ -389,22 +597,27 @@ write_part ( const char *fname, FILE *fpin, unsigned long pktlen,
|
|||
#endif
|
||||
if (zrc == Z_STREAM_END)
|
||||
; /* eof */
|
||||
else if (zrc != Z_OK && zrc != Z_BUF_ERROR) {
|
||||
else if (zrc != Z_OK && zrc != Z_BUF_ERROR)
|
||||
{
|
||||
if (zs.msg)
|
||||
log_fatal ("zlib inflate problem: %s\n", zs.msg );
|
||||
else
|
||||
log_fatal ("zlib inflate problem: rc=%d\n", zrc );
|
||||
}
|
||||
for (n=0; n < outbufsize - zs.avail_out; n++) {
|
||||
for (n=0; n < outbufsize - zs.avail_out; n++)
|
||||
{
|
||||
if (putc (outbuf[n], fpout) == EOF )
|
||||
goto write_error;
|
||||
}
|
||||
}
|
||||
} while (zrc != Z_STREAM_END && zrc != Z_BUF_ERROR);
|
||||
}
|
||||
while (zrc != Z_STREAM_END && zrc != Z_BUF_ERROR);
|
||||
inflateEnd (&zs);
|
||||
}
|
||||
else {
|
||||
while ( (c=getc (fpin)) != EOF ) {
|
||||
else
|
||||
{
|
||||
while ( (c=getc (fpin)) != EOF )
|
||||
{
|
||||
if ( putc (c, fpout) == EOF )
|
||||
goto write_error;
|
||||
}
|
||||
|
|
@ -412,15 +625,17 @@ write_part ( const char *fname, FILE *fpin, unsigned long pktlen,
|
|||
if (!feof (fpin))
|
||||
goto read_error;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
for (p=hdr; hdrlen; p++, hdrlen--) {
|
||||
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--) {
|
||||
for (; pktlen; pktlen--)
|
||||
{
|
||||
c = getc (fpin);
|
||||
if (c == EOF)
|
||||
goto read_error;
|
||||
|
|
@ -428,17 +643,20 @@ write_part ( const char *fname, FILE *fpin, unsigned long pktlen,
|
|||
goto write_error;
|
||||
}
|
||||
|
||||
|
||||
if ( fclose (fpout) )
|
||||
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: {
|
||||
read_error:
|
||||
if (!opt_no_split)
|
||||
{
|
||||
int save = errno;
|
||||
fclose (fpout);
|
||||
errno = save;
|
||||
|
|
@ -462,26 +680,30 @@ do_split (const char *fname, FILE *fp)
|
|||
return 3; /* ready */
|
||||
header[header_idx++] = ctb;
|
||||
|
||||
if( !(ctb & 0x80) ) {
|
||||
if (!(ctb & 0x80))
|
||||
{
|
||||
log_error("invalid CTB %02x\n", ctb );
|
||||
return 1;
|
||||
}
|
||||
if ( (ctb & 0x40) ) { /* new CTB */
|
||||
if ( (ctb & 0x40) )
|
||||
{ /* new CTB */
|
||||
pkttype = (ctb & 0x3f);
|
||||
if( (c = getc (fp)) == EOF )
|
||||
return -1;
|
||||
header[header_idx++] = c;
|
||||
|
||||
if( c < 192 )
|
||||
if ( c < 192 )
|
||||
pktlen = c;
|
||||
else if( c < 224 ) {
|
||||
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 ) {
|
||||
else if ( c == 255 )
|
||||
{
|
||||
if (read_u32 (fp, &pktlen))
|
||||
return -1;
|
||||
header[header_idx++] = pktlen >> 24;
|
||||
|
|
@ -489,25 +711,30 @@ do_split (const char *fname, FILE *fp)
|
|||
header[header_idx++] = pktlen >> 8;
|
||||
header[header_idx++] = pktlen;
|
||||
}
|
||||
else { /* partial body length */
|
||||
else
|
||||
{ /* partial body length */
|
||||
pktlen = c;
|
||||
partial = 1;
|
||||
}
|
||||
}
|
||||
else {
|
||||
else
|
||||
{
|
||||
int lenbytes;
|
||||
|
||||
pkttype = (ctb>>2)&0xf;
|
||||
lenbytes = ((ctb&3)==3)? 0 : (1<<(ctb & 3));
|
||||
if( !lenbytes ) {
|
||||
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-- ) {
|
||||
else
|
||||
{
|
||||
for ( ; lenbytes; lenbytes-- )
|
||||
{
|
||||
pktlen <<= 8;
|
||||
if( (c = getc (fp)) == EOF )
|
||||
return -1;
|
||||
|
|
@ -529,11 +756,13 @@ split_packets (const char *fname)
|
|||
FILE *fp;
|
||||
int rc;
|
||||
|
||||
if (!fname || !strcmp (fname, "-")) {
|
||||
if (!fname || !strcmp (fname, "-"))
|
||||
{
|
||||
fp = stdin;
|
||||
fname = "-";
|
||||
}
|
||||
else if ( !(fp = fopen (fname,"rb")) ) {
|
||||
else if ( !(fp = fopen (fname,"rb")) )
|
||||
{
|
||||
log_error ("can't open `%s': %s\n", fname, strerror (errno));
|
||||
return;
|
||||
}
|
||||
|
|
@ -550,4 +779,3 @@ split_packets (const char *fname)
|
|||
if ( fp != stdin )
|
||||
fclose (fp);
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user