move gpg2ssh stuff into it's own subdirectory to reduce some cluter

1 files changed, 0 insertions, 291 deletions

diff --git a/gpg2ssh.c b/gpg2ssh.c
deleted file mode 100644
index a1e94df..0000000
--- a/gpg2ssh.c
+++ /dev/null
@@ -1,291 +0,0 @@
-#include "gnutls-helpers.h"
-
-#include <gnutls/openpgp.h>
-#include <gnutls/x509.h>
-
-/* for waitpid() */
-#include <sys/types.h>
-#include <sys/wait.h>
-
-/* 
-   Author: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
-   Date: Tue, 08 Apr 2008
-   License: GPL v3 or later
-
-   monkeysphere public key translator: execute this with an GPG
-   certificate (public key(s) + userid(s)) on stdin.  It currently
-   only works with RSA keys.
-
-   It will spit out a version of the first key capable of being used
-   for authentication on stdout.  The output format should be suitable
-   for appending a known_hosts file.
-
-   Requirements: I've only built this so far with GnuTLS v2.3.4 --
-   version 2.2.0 does not contain the appropriate pieces.
-
- */
-
-int main(int argc, char* argv[]) {
-  gnutls_datum_t data;
-  int ret;
-  gnutls_openpgp_crt_t openpgp_crt;
-  gnutls_openpgp_keyid_t keyid;
-  printable_keyid p_keyid;
-  unsigned int keyidx;
-  unsigned int usage, bits;
-  gnutls_pk_algorithm_t algo;
-
-  gnutls_datum_t m, e, p, q, g, y;
-  gnutls_datum_t algolabel;
-
-  char output_data[10240];
-  char userid[10240];
-  size_t uidsz = sizeof(userid);
-
-  const gnutls_datum_t* all[5];
-  int pipefd;
-  pid_t child_pid;
-  char* const args[] = {"/usr/bin/base64", "--wrap=0", NULL};
-  const char* algoname;
-  int mpicount;
-  int pipestatus;
-
-  init_gnutls();
-  
-  init_datum(&data);
-
-  init_datum(&m);
-  init_datum(&e);
-  init_datum(&p);
-  init_datum(&q);
-  init_datum(&g);
-  init_datum(&y);
-
-  init_datum(&algolabel);
-
-  init_keyid(keyid);
-
-  /* slurp in the private key from stdin */
-  if (ret = set_datum_fd(&data, 0), ret) {
-    err("didn't read file descriptor 0\n");
-    return 1;
-  }
-
-
-  if (ret = gnutls_openpgp_crt_init(&openpgp_crt), ret) {
-    err("Failed to initialize OpenPGP certificate (error: %d)\n", ret);
-    return 1;
-  }
-
-  /* format could be either: GNUTLS_OPENPGP_FMT_RAW,
-     GNUTLS_OPENPGP_FMT_BASE64; if MONKEYSPHERE_RAW is set, use RAW,
-     otherwise, use BASE64: */
-
-  /* FIXME: we should be auto-detecting the input format, and
-     translating it as needed. */
-
-  if (getenv("MONKEYSPHERE_RAW")) {
-    err("assuming RAW formatted certificate\n");
-    if (ret = gnutls_openpgp_crt_import(openpgp_crt, &data, GNUTLS_OPENPGP_FMT_RAW), ret) {
-      err("failed to import the OpenPGP certificate in RAW format (error: %d)\n", ret);
-      return ret;
-    }
-  } else {
-    err("assuming BASE64 formatted certificate\n");
-    if (ret = gnutls_openpgp_crt_import (openpgp_crt, &data, GNUTLS_OPENPGP_FMT_BASE64), ret) {
-      err("failed to import the OpenPGP certificate in BASE64 format (error: %d)\n", ret);
-      return ret;
-    }
-  }
-
-  if (gnutls_openpgp_crt_get_revoked_status(openpgp_crt)) {
-    err("the primary key was revoked!\n");
-    return 1;
-  }
-
-  /* FIXME: We're currently looking at the primary key or maybe the
-     first authentication-capable subkey.  
-
-     Instead, we should be iterating through the primary key and all
-     subkeys: for each one with the authentication usage flag set of a
-     algorithm we can handle, we should output matching UserIDs and
-     the SSH version of the key. */
-     
-
-  if (ret = gnutls_openpgp_crt_get_key_usage(openpgp_crt, &usage), ret) {
-    err("failed to get the usage flags for the primary key (error: %d)\n", ret);
-    return ret;
-  }
-  if (usage & GNUTLS_KEY_KEY_AGREEMENT) {
-    err("the primary key can be used for authentication\n");
-
-    algo = gnutls_openpgp_crt_get_pk_algorithm(openpgp_crt, &bits);
-    if (algo < 0) {
-      err("failed to get the algorithm of the OpenPGP public key (error: %d)\n", algo);
-      return algo;
-    } else if (algo == GNUTLS_PK_RSA) {
-      
-      err("OpenPGP RSA certificate, with %d bits\n", bits);
-      ret = gnutls_openpgp_crt_get_pk_rsa_raw(openpgp_crt, &m, &e);
-      if (GNUTLS_E_SUCCESS != ret) {
-	err ("failed to export RSA key parameters (error: %d)\n", ret);
-	return 1;
-      }
-    } else if (algo == GNUTLS_PK_DSA) {
-      err("OpenPGP DSA Key, with %d bits\n", bits);
-      ret = gnutls_openpgp_crt_get_pk_dsa_raw(openpgp_crt, &p, &q, &g, &y);
-      if (GNUTLS_E_SUCCESS != ret) {
-	err ("failed to export DSA key parameters (error: %d)\n", ret);
-	return 1;
-      }
-    } else {
-      err("OpenPGP Key was not RSA or DSA -- can't deal! (actual algorithm was: %d)\n", algo);
-      return 1;
-    }
-    
-  } else {
-    err("primary key is only good for: 0x%08x.  Trying subkeys...\n", usage);
-    
-    if (ret = gnutls_openpgp_crt_get_auth_subkey(openpgp_crt, keyid, 0), ret) {
-      err("failed to find a subkey capable of authentication (error: %d)\n", ret);
-      return ret;
-    }
-    make_keyid_printable(p_keyid, keyid);
-    err("found authentication subkey %.16s\n", p_keyid);
-
-    ret = gnutls_openpgp_crt_get_subkey_idx(openpgp_crt, keyid);
-    if (ret < 0) {
-      err("could not get the index of subkey %.16s (error: %d)\n", ret);
-      return ret;
-    }
-    keyidx = ret;
-
-    if (gnutls_openpgp_crt_get_subkey_revoked_status(openpgp_crt, keyidx)) {
-      err("The authentication subkey was revoked!\n");
-      return 1;
-    }
-
-    if (ret = gnutls_openpgp_crt_get_subkey_usage(openpgp_crt, keyidx, &usage), ret) {
-      err("could not figure out usage of subkey %.16s (error: %d)\n", p_keyid, ret);
-      return ret;
-    }
-    if ((usage & GNUTLS_KEY_KEY_AGREEMENT) == 0) {
-      err("could not find a subkey with authentication privileges.\n");
-      return 1;
-    }
-
-    /* switch, based on the algorithm in question, to extract the MPI
-       components: */
-
-    algo = gnutls_openpgp_crt_get_subkey_pk_algorithm(openpgp_crt, keyidx, &bits);
-    if (algo < 0) {
-      err("failed to get the algorithm of the authentication subkey (error: %d)\n", algo);
-      return algo;
-    } else if (algo == GNUTLS_PK_RSA) {
-      
-      err("OpenPGP RSA subkey, with %d bits\n", bits);
-      ret = gnutls_openpgp_crt_get_subkey_pk_rsa_raw(openpgp_crt, keyidx, &m, &e);
-      if (GNUTLS_E_SUCCESS != ret) {
-	err ("failed to export RSA subkey parameters (error: %d)\n", ret);
-	return 1;
-      }
-    } else if (algo == GNUTLS_PK_DSA) {
-      err("OpenPGP DSA subkey, with %d bits\n", bits);
-      ret = gnutls_openpgp_crt_get_subkey_pk_dsa_raw(openpgp_crt, keyidx, &p, &q, &g, &y);
-      if (GNUTLS_E_SUCCESS != ret) {
-	err ("failed to export DSA subkey parameters (error: %d)\n", ret);
-	return 1;
-      }
-    } else {
-      err("OpenPGP subkey was not RSA or DSA -- can't deal! (actual algorithm was: %d)\n", algo);
-      return 1;
-    }
-  } 
-
-  /* make sure userid is NULL-terminated */
-  userid[sizeof(userid) - 1] = 0;
-  uidsz--;
-
-  /* FIXME: we're just choosing the first UserID from the certificate:
-     instead, we should be selecting every User ID that is adequately
-     signed and matches the spec, and aggregating them with commas for
-     known_hosts output */
-
-  if (ret = gnutls_openpgp_crt_get_name(openpgp_crt, 0, userid, &uidsz), ret) {
-    err("Failed to fetch the first UserID (error: %d)\n", ret);
-    return ret;
-  }
-
-  if (ret = validate_ssh_host_userid(userid), ret) {
-    err("bad userid: not a valid ssh host.\n");
-    return ret;
-  }
-
-  /* remove ssh:// from the beginning of userid */
-  memmove(userid, userid + strlen("ssh://"), 1 + strlen(userid) - strlen("ssh://"));
-  
-
-  /* now we have algo, and the various MPI data are set.  Can we
-     export them cleanly? */
-
-  /* for the moment, we'll just dump the info raw, and pipe it
-     externally through coreutils' /usr/bin/base64 */
-
-  if (algo == GNUTLS_PK_RSA) {
-    algoname = "ssh-rsa";
-    mpicount = 3;
-
-    all[0] = &algolabel;
-    all[1] = &e;
-    all[2] = &m;
-  } else if (algo == GNUTLS_PK_DSA) {
-    algoname = "ssh-dss";
-    mpicount = 5;
-
-    all[0] = &algolabel;
-    all[1] = &p;
-    all[2] = &q;
-    all[3] = &g;
-    all[4] = &y;
-  } else {
-    err("no idea what this algorithm is: %d\n", algo);
-    return 1;
-  }
-
-  if (ret = datum_from_string(&algolabel, algoname), ret) {
-    err("couldn't label string (error: %d)\n", ret);
-    return ret;
-  }
-
-  snprintf(output_data, sizeof(output_data), "%s %s ", userid, algoname);
-
-  pipefd = create_writing_pipe(&child_pid, args[0], args);
-  if (pipefd < 0) {
-    err("failed to create a writing pipe (returned %d)\n", pipefd);
-    return pipefd;
-  }
-    
-  write(1, output_data, strlen(output_data));
-
-  if (0 != write_data_fd_with_length(pipefd, all, mpicount)) {
-    err("was not able to write out RSA key data\n");
-    return 1;
-  }
-  close(pipefd);
-  if (child_pid != waitpid(child_pid, &pipestatus, 0)) {
-    err("could not wait for child process to return for some reason.\n");
-    return 1;
-  }
-  if (pipestatus != 0) {
-    err("base64 pipe died with return code %d\n", pipestatus);
-    return pipestatus;
-  }
-
-  write(1, "\n", 1);
-
-
-
-  gnutls_openpgp_crt_deinit(openpgp_crt);
-  gnutls_global_deinit();
-  return 0;
-}