/[winpt]/trunk/Src/wptGPG.cpp
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revision 41 by twoaday, Fri Oct 28 07:15:26 2005 UTC revision 248 by twoaday, Fri Jul 28 11:11:09 2006 UTC
# Line 1  Line 1 
1  /* wptGPG.cpp - GnuPG configuration  /* wptGPG.cpp - GnuPG configuration
2   *      Copyright (C) 2001-2005 Timo Schulz   *      Copyright (C) 2001-2006 Timo Schulz
3   *   *
4   * This file is part of WinPT.   * This file is part of WinPT.
5   *   *
# Line 17  Line 17 
17   * along with WinPT; if not, write to the Free Software Foundation,   * along with WinPT; if not, write to the Free Software Foundation,
18   * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA   * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19   */   */
20    #ifdef HAVE_CONFIG_H
21    #include <config.h>
22    #endif
23    
24  #include <windows.h>  #include <windows.h>
25  #include <string.h>  #include <string.h>
26  #include <stdio.h>  #include <stdio.h>
# Line 26  Line 30 
30  #include <time.h>  #include <time.h>
31    
32  #include "wptGPG.h"  #include "wptGPG.h"
33  #include "wptGPGCmds.h"  #include "wptGpgCmds.h"
34  #include "wptGPGOptSkel.h"  #include "wptGPGOptSkel.h"
35  #include "wptTypes.h"  #include "wptTypes.h"
36  #include "wptNLS.h"  #include "wptNLS.h"
# Line 35  Line 39 
39  #include "wptW32API.h"  #include "wptW32API.h"
40  #include "wptCrypto.h"  #include "wptCrypto.h"
41    
42  #define GPG_CONF "gpg.conf"  #define GPG_CONF        "gpg.conf"
43    #define GPG_REG_EXE     "gpgProgram"    /* registry name for the binary. */
44    #define GPG_REG_HOME    "HomeDir"       /* registry name of the home dir. */
45    
46  struct gpg_watcher_s {  struct gpg_watcher_s {
47      FILETIME    last_access;      FILETIME    last_access;
# Line 56  static int check_keyring (char ** r_path Line 62  static int check_keyring (char ** r_path
62    
63    
64  /* Return the application data folder of the current user. */  /* Return the application data folder of the current user. */
65  static char*  char*
66  multi_gnupg_path (void)  multi_gnupg_path (int strict)
67  {  {
68      static char buf[256+64];      static char buf[256+64];
69      BOOL ec;      BOOL ec;
# Line 66  multi_gnupg_path (void) Line 72  multi_gnupg_path (void)
72      memset (buf, 0, sizeof (buf));      memset (buf, 0, sizeof (buf));
73      /* XXX: ec should be NOERROR (MSDN) but NOERROR is defined as '0' !? */      /* XXX: ec should be NOERROR (MSDN) but NOERROR is defined as '0' !? */
74      ec = SHGetSpecialFolderPath (HWND_DESKTOP, buf, CSIDL_APPDATA, TRUE);      ec = SHGetSpecialFolderPath (HWND_DESKTOP, buf, CSIDL_APPDATA, TRUE);
75      if (ec != 1)      if (ec != 1) {
76            log_debug ("multi_gnupg_path: SHGetSpecialFolderPath() failed\r\n",
77                       (int)GetLastError ());
78          return NULL;          return NULL;
79        }
80      strcat (buf, "\\gnupg");      strcat (buf, "\\gnupg");
81      if (access (buf, 00))      if (strict && access (buf, 00))
82          return NULL;          return NULL;
83      return m_strdup (buf);      return m_strdup (buf);
84  }  }
85    
86    
87  /* Return the full path of the GnuPG application. First the registry is scanned  /* Return the full path to the GPG home directory. First the 'HomeDir' entry
88     for the entry 'HomeDir'. If it wasn't set, the default dir C:\GNUPG is used.     from the registry is used. Then the default $APPDATA\gnupg path. */
 */  
89  char*  char*
90  get_gnupg_path (void)  get_gnupg_path (void)
91  {  {
92      char *p = NULL, *path = NULL;      char *path;
93        
94      p = get_reg_entry_gpg ("HomeDir");      path = get_reg_entry_gpg (GPG_REG_HOME);
95      if (p) {      if (path && dir_exist_check (path) == 0)
         path = m_strdup (p);  
         free_if_alloc (p);  
96          return path;          return path;
97      }      free_if_alloc (path);
98      else      path = multi_gnupg_path (1);
99          return multi_gnupg_path ();      return path;
     return m_strdup ("c:\\gnupg");  
100  }  }
101    
102    
# Line 100  get_gnupg_path (void) Line 105  get_gnupg_path (void)
105  char*  char*
106  get_gnupg_cfgfile (void)  get_gnupg_cfgfile (void)
107  {      {    
108      char *p = NULL, *optfile = NULL, *path = NULL;      char *p = NULL;
109        char *optfile = NULL;
110        char *path = NULL;
111      size_t nlen = 0;      size_t nlen = 0;
112    
113      path = get_gnupg_path ();      path = get_gnupg_path ();
114      if (!path)      if (!path)
115          return NULL;          return NULL;
116      p = get_reg_entry_gpg ("OptFile");      nlen = strlen (path) + 64;
117      if (p && !strcmp (p, "")) {      optfile = new char[nlen + 1];
118          nlen = strlen (path) + 64;      if (!optfile)
119          optfile = new char[nlen + 1];          BUG (NULL);    
120          if (!optfile)      _snprintf (optfile, nlen, "%s\\"GPG_CONF, path);
121              BUG (0);  
         _snprintf (optfile, nlen, "%s\\"GPG_CONF, path);  
     }  
     else if (p) {  
         nlen = strlen( p ) + 4;  
         optfile = new char[nlen + 1];  
         if (!optfile)  
             BUG (NULL);  
         _snprintf (optfile, nlen, "%s", p);  
     }  
     else {  
         nlen = strlen (path) + 64;  
         optfile = new char[nlen + 1];  
         if( !optfile)  
             BUG (NULL);  
         _snprintf (optfile, nlen, "%s\\"GPG_CONF, path);  
     }  
122      free_if_alloc (path);      free_if_alloc (path);
123      free_if_alloc (p);      free_if_alloc (p);
124      return optfile;      return optfile;
# Line 147  get_gnupg_keyring (int pub, int strict) Line 138  get_gnupg_keyring (int pub, int strict)
138      if (!path)      if (!path)
139          return NULL;          return NULL;
140      keyring = make_filename (path, pub? "pubring" : "secring", "gpg");      keyring = make_filename (path, pub? "pubring" : "secring", "gpg");
141      if (!strict && !file_exist_check (keyring)) {      if (strict && !file_exist_check (keyring)) {
142          free_if_alloc (path);          free_if_alloc (path);
143          return keyring;          return keyring;
144      }      }
145      if (file_exist_check (keyring) || get_file_size (keyring) == 0) {      else if (!strict) {
146            free_if_alloc (path);
147            return keyring;
148        }
149        if (file_exist_check (keyring) || pub && get_file_size (keyring) == 0) {
150          free_if_alloc (keyring);          free_if_alloc (keyring);
151          optfile = make_filename (path, GPG_CONF, NULL);          optfile = make_filename (path, GPG_CONF, NULL);
152          keyring = get_gnupg_keyring_from_options (optfile, pub);          keyring = get_gnupg_keyring_from_options (optfile, pub);
# Line 168  get_gnupg_keyring (int pub, int strict) Line 163  get_gnupg_keyring (int pub, int strict)
163  char*  char*
164  get_gnupg_prog (void)  get_gnupg_prog (void)
165  {      {    
166      char *p;      char *path;
167      char *pgm = NULL;      char *pgm;
     size_t nlen = 0;  
168    
169      p = get_reg_entry_gpg ("gpgProgram");      pgm = get_reg_entry_gpg (GPG_REG_EXE);
170      if (!p) {      if (pgm)
171          char *path = get_gnupg_path ();          return pgm;
172          if (!path)      path = get_gnupg_path ();
173              return NULL;      if (!path)
174          pgm = make_filename (path, "gpg", "exe");          return NULL;    
175          free_if_alloc (path);      pgm = make_filename (path, "gpg", "exe");
176      }      free_if_alloc (path);    
     else {  
         pgm = m_strdup (p);  
         free_if_alloc (p);  
     }  
177      return pgm;      return pgm;
178  }  }
179    
# Line 193  get_gnupg_prog (void) Line 183  get_gnupg_prog (void)
183     Return value: the keyid of the secret key. */     Return value: the keyid of the secret key. */
184  static char *  static char *
185  default_key_from_cache (int *ret_no_useable)  default_key_from_cache (int *ret_no_useable)
186  {  {    
187      const char * s;      gpgme_key_t key, pk;
188      char * keyid = NULL;      gpg_keycache_t sec, pub;
189      gpgme_key_t key;      const char *s;
190      gpg_keycache_t sec = keycache_get_ctx (0);      char *keyid = NULL;
191    
192      if (!sec)      sec = keycache_get_ctx (0);
193          BUG (0);      pub = keycache_get_ctx (1);
194      gpg_keycache_rewind (sec);      gpg_keycache_rewind (sec);
195      while (!gpg_keycache_next_key (sec, 1, &key)) {      while (!gpg_keycache_next_key (sec, 1, &key)) {
196          if (key_is_useable (key)) {          if (key_is_useable (key) && !get_pubkey (key->subkeys->keyid, &pk)) {
197              s = key->subkeys->keyid;              s = key->subkeys->keyid;
198              if (s)                  if (s)
199                  keyid = m_strdup (s+8);                  keyid = m_strdup (s+8);
200              break;              break;
201          }          }
202      }      }
203      if (!keyid) {      if (!keyid)
204          *ret_no_useable = 1;          *ret_no_useable = 1;
         msg_box (NULL, _("No useable secret key found."), _("GPG Error"), MB_ERR);  
     }  
205      return keyid;      return keyid;
206  }  }
207    
# Line 227  gnupg_load_config (void) Line 215  gnupg_load_config (void)
215      int rc;      int rc;
216      gpg_optfile_t opt;      gpg_optfile_t opt;
217      gpg_option_t o;      gpg_option_t o;
218      char *conf = get_gnupg_cfgfile ();      char *conf;
219        
220        conf = get_gnupg_cfgfile ();
221      if (!conf)      if (!conf)
222          return -1;          return -1;
223      rc = parse_gpg_options (conf, &opt);      rc = parse_gpg_options (conf, &opt);
# Line 238  gnupg_load_config (void) Line 228  gnupg_load_config (void)
228      o = find_option (opt, "ask-cert-level");      o = find_option (opt, "ask-cert-level");
229      if (o)      if (o)
230          reg_prefs.gpg.ask_cert_level = 1;          reg_prefs.gpg.ask_cert_level = 1;
231        o = find_option (opt, "ask-cert-expire");
232        if (o)
233            reg_prefs.gpg.ask_cert_expire = 1;
234      release_gpg_options (opt);      release_gpg_options (opt);
235      free_if_alloc (conf);      free_if_alloc (conf);
236      return 0;      return 0;
237  }  }
238    
239    
240    /* handle the case the user added a '!' to force a subkey. */
241    static char*
242    extract_keyid (const char *val)
243    {    
244        size_t len = strlen (val);
245    
246        if (len > 1 && val[len-1] == '!') {
247            char *p = new char[len+1];
248            if (!p)
249                BUG (0);
250            memset (p, 0, len+1);
251            memcpy (p, val, len-1);
252            return p;
253        }
254        return m_strdup (val);
255    }
256    
257    
258  char*  char*
259  get_gnupg_default_key (void)  get_gnupg_default_key (void)
260  {      {    
261      gpg_optfile_t opt = NULL;      gpg_optfile_t opt = NULL;
262      gpg_option_t e;      gpg_option_t e;
263      char * keyid = NULL, * optfile = NULL;      char *keyid = NULL, *optfile = NULL;
264      int no_usable=0, rc = 0;      int no_usable=0, rc = 0;
265    
266      optfile = get_gnupg_cfgfile ();      optfile = get_gnupg_cfgfile ();
# Line 257  get_gnupg_default_key (void) Line 268  get_gnupg_default_key (void)
268          return default_key_from_cache (&no_usable);          return default_key_from_cache (&no_usable);
269      rc = parse_gpg_options (optfile, &opt);      rc = parse_gpg_options (optfile, &opt);
270      if (rc) {      if (rc) {
271          free_if_alloc( optfile );          free_if_alloc (optfile);
272          return default_key_from_cache( &no_usable );          return default_key_from_cache (&no_usable);
     }  
     e = find_option( opt, "default-key" );  
     if ( e )  
         keyid = m_strdup( e->val );  
     if( !e ) {  
         e = find_option( opt, "local-user" );  
         if( e )  
             keyid = m_strdup( e->val );  
     }  
     if( !e ) {  
         e = find_option( opt, "encrypt-to" );  
         if( e )  
             keyid = m_strdup( e->val );  
273      }      }
274        e = find_option (opt, "default-key");
275        if (!e)
276            e = find_option (opt, "local-user");
277        if (e)
278            keyid = extract_keyid (e->val);
279    
280      free_if_alloc (optfile);      free_if_alloc (optfile);
281      release_gpg_options (opt);      release_gpg_options (opt);
   
282      if (!keyid)      if (!keyid)
283          keyid = default_key_from_cache (&no_usable);          keyid = default_key_from_cache (&no_usable);
284      return keyid;      return keyid;
285  } /* get_gnupg_default_key */  }
286    
287    
288    /* Check if GPG4WIN is available and if so, use the
289       install path to figure out where the gpg.exe is. */
290    char*
291    check_for_gpg4win (void)
292    {
293        return get_reg_entry_gpg4win ("gpg.exe");
294    }
295    
296    
297  /* Check if the gpg application (exe file) is available. */  /* Check if the gpg application (exe file) is available. */
298  int  int
299  check_gnupg_prog (void)  check_gnupg_prog (void)
300  {  {
301      char *pgm = NULL;      char *gpgexe = NULL;
302      int rc = 0;      int rc = 0;
303    
304      pgm = get_gnupg_prog ();      gpgexe = get_gnupg_prog ();
305      if (!pgm)      if (!gpgexe || file_exist_check (gpgexe)) {
306          rc = WPTERR_GPG_EXEFILE;          free_if_alloc (gpgexe);
307      if (file_exist_check (pgm))          gpgexe = check_for_gpg4win ();
308          rc = WPTERR_GPG_EXEFILE;          if (!gpgexe || file_exist_check (gpgexe))
309      free_if_alloc (pgm);              rc = WPTERR_GPG_EXEFILE;
310            else
311                set_reg_entry_gpg (GPG_REG_EXE, gpgexe);
312        }
313        free_if_alloc (gpgexe);
314      return rc;      return rc;
315  }  }
316    
317    
318  static int  static int
319  parse_version_nr (const char * buf, int *major, int *minor, int *patch)  parse_version_nr (const char *buf, int *major, int *minor, int *patch)
320  {  {
321      char tmp[8];      char tmp[8];
322      int i;      int i;
# Line 309  parse_version_nr (const char * buf, int Line 325  parse_version_nr (const char * buf, int
325      while (buf && *buf != '.' && i < 8)      while (buf && *buf != '.' && i < 8)
326          tmp[i++] = *buf++;          tmp[i++] = *buf++;
327      tmp[i] = 0; buf++;      tmp[i] = 0; buf++;
328      *major = atol( tmp );      *major = atoi (tmp);
329      i=0;      i=0;
330      while (buf && *buf != '.' && i < 8)      while (buf && *buf != '.' && i < 8)
331          tmp[i++] = *buf++;          tmp[i++] = *buf++;
332      tmp[i] = 0; buf++;      tmp[i] = 0; buf++;
333      *minor = atol (tmp);      *minor = atoi (tmp);
334      i=0;      i=0;
335      while (buf && isdigit( *buf ) && i < 8)      while (buf && isdigit (*buf) && i < 8)
336          tmp[i++] = *buf++;          tmp[i++] = *buf++;
337      tmp[i] = 0;      tmp[i] = 0;
338      *patch = atol (tmp);      *patch = atoi (tmp);
339      return 0;      return 0;
340  }  }
341    
# Line 328  parse_version_nr (const char * buf, int Line 344  parse_version_nr (const char * buf, int
344     version given in @r_major.@r_minor.@r_patch. On success these     version given in @r_major.@r_minor.@r_patch. On success these
345     variables contain the GPG version which is installed. */     variables contain the GPG version which is installed. */
346  int  int
347  check_gnupg_engine (int *r_major, int *r_minor, int *r_patch)  check_gnupg_engine (const char *need_gpg_ver,
348                        int *r_major, int *r_minor, int *r_patch)
349  {  {
350      gpgme_ctx_t ctx;      gpgme_ctx_t ctx;
351      gpgme_engine_info_t inf;      gpgme_engine_info_t inf;
352      char * eng = NULL;      char *eng = NULL;
353      int major=0, minor=0, patch=0;      int major=0, minor=0, patch=0;
354      int rc;      int need_major = 0, need_minor = 0, need_patch = 0;
355                int rc = 1;
356    
357        /* Convert the needed GPG version to the integer format. */
358        if (parse_version_nr (need_gpg_ver,
359                              &need_major, &need_minor, &need_patch))
360            return 1;
361        
362      gpgme_new (&ctx);      gpgme_new (&ctx);
363      inf = gpgme_ctx_get_engine_info (ctx);      inf = gpgme_ctx_get_engine_info (ctx);
364      if (!inf) {      if (!inf) {
365          gpgme_release (ctx);          gpgme_release (ctx);
366          return -1;          return -1;
367      }      }
368    
369      /* We need to exec GPG again to find out if IDEA is available. */      /* We need to exec GPG again to find out if IDEA is available. */
370      if (gpg_get_version (&eng))      if (gpg_get_version (&eng)) {
371            gpgme_release (ctx);
372          return -1;          return -1;
373        }
374      if (strstr (eng, "IDEA"))      if (strstr (eng, "IDEA"))
375          idea_available = 1;          idea_available = 1;
376      free (eng);      safe_free (eng);
377      rc = parse_version_nr( inf->version, &major, &minor, &patch );      if (parse_version_nr (inf->version, &major, &minor, &patch)) {
     if( rc ) {  
378          gpgme_release (ctx);          gpgme_release (ctx);
379          return rc;          return 1;
380      }      }
381      if (major < *r_major || minor < *r_minor)      gpgme_release (ctx);
382          rc = 1;  
383      else {      if (major > need_major)
         if (patch < *r_patch)  
             rc = 1;  
384          rc = 0;          rc = 0;
385      }      else if (major == need_major && minor > need_minor)      
386            rc = 0;
387        else if (major == need_major && minor == need_minor &&
388                 patch >= need_patch)
389            rc = 0;
390    
391        /* Return the current GPG version. */
392      *r_major = major;      *r_major = major;
393      *r_minor = minor;      *r_minor = minor;
394      *r_patch = patch;      *r_patch = patch;
# Line 372  check_gnupg_cfgfile (const char *fname, Line 401  check_gnupg_cfgfile (const char *fname,
401  {  {
402      gpg_optfile_t opt;          gpg_optfile_t opt;    
403      gpg_option_t e;      gpg_option_t e;
     int rc = 0;  
404    
405      *r_secrings = 0;      *r_secrings = 0;
406      *r_pubrings = 0;      *r_pubrings = 0;
     rc = parse_gpg_options( fname, &opt );  
     if( rc )  
         return WPTERR_FILE_OPEN;  
407    
408      for( e = opt->list; e; e = e->next ) {      if (parse_gpg_options (fname, &opt))
409          if( !strcmp( e->name, "secret-keyring" ) ) {          return WPTERR_FILE_OPEN;
410              if( !file_exist_check( e->val ) )      for (e = opt->list; e; e = e->next) {
411            if (!strcmp( e->name, "secret-keyring")) {
412                if (!file_exist_check (e->val))
413                  r_secrings[0]++;                  r_secrings[0]++;
414          }          }
415          else if( !strcmp( e->name, "keyring" ) ) {          else if (!strcmp (e->name, "keyring")) {
416              if( !file_exist_check( e->val ) )              if (!file_exist_check (e->val))
417                  r_pubrings[0]++;                  r_pubrings[0]++;
418          }          }
419      }      }
420      release_gpg_options( opt );      release_gpg_options (opt);
421      return 0;      return 0;
422  } /* check_gnupg_cfgfile */  }
423    
424    
425  /*  /* Usually GPG creates the pubring.gpg, secring.gpg on
426   * Check if both keyrings are located in the gnupg home directory.     the first start, but to make sure they always exist
427   */     create them empty if needed. */
428    static void
429    create_empty_keyring (int _pub)
430    {
431        char *name;
432        FILE *fp;
433    
434        name = get_gnupg_keyring (_pub, 0);
435        if (name && file_exist_check (name) != 0) {
436            fp = fopen (name, "ab");
437            if (fp != NULL)
438                fclose (fp);
439        }
440        free_if_alloc (name);
441    }
442    
443    
444    /* Check if both keyrings are located in the gnupg home directory. */
445  int  int
446  gnupg_access_files (void)  gnupg_access_files (void)
447  {  {
# Line 406  gnupg_access_files (void) Line 450  gnupg_access_files (void)
450      int secrings = 0, pubrings = 0;      int secrings = 0, pubrings = 0;
451      char *optfile;      char *optfile;
452    
453        create_empty_keyring (1);
454      if (gnupg_access_keyring (1))      if (gnupg_access_keyring (1))
455          rc = WPTERR_GPG_KEYRINGS;          rc = WPTERR_GPG_KEYRINGS;
456      else      else
457          pubring_ok = 1;          pubring_ok = 1;
458    
459        create_empty_keyring (0);
460      if (gnupg_access_keyring (0))      if (gnupg_access_keyring (0))
461          rc = WPTERR_GPG_KEYRINGS;          rc = WPTERR_GPG_KEYRINGS;
462      else      else
463          secring_ok = 1;          secring_ok = 1;
464    
465      if (!pubring_ok || !secring_ok) {      if (!pubring_ok || !secring_ok) {
466          optfile = get_gnupg_cfgfile ();          optfile = get_gnupg_cfgfile ();
467          if (!optfile)          if (!optfile)
468              return WPTERR_GPG_KEYRINGS;              return WPTERR_GPG_KEYRINGS;
469          rc = file_exist_check (optfile);          rc = file_exist_check (optfile);
470          if (!rc && get_file_size(optfile) > 0) {          if (!rc && get_file_size (optfile) > 0) {
471              rc = check_gnupg_cfgfile (optfile, &secrings, &pubrings);              rc = check_gnupg_cfgfile (optfile, &secrings, &pubrings);
472              if (!rc && secrings && pubrings) {              if (!rc && secrings > 0 && pubrings > 0) {
473                  free_if_alloc (optfile);                  free_if_alloc (optfile);
474                  return 0; /* found two keyrings in the option file */                  return 0; /* found two keyrings in the option file */
475              }              }
# Line 438  gnupg_access_files (void) Line 485  gnupg_access_files (void)
485          rc = WPTERR_GPG_KEYRINGS;          rc = WPTERR_GPG_KEYRINGS;
486      }      }
487      return rc;      return rc;
488  } /* gnupg_access_files */  }
489    
490    
491  static int  static int
# Line 447  create_gpg_options (void) Line 494  create_gpg_options (void)
494      FILE *fp;      FILE *fp;
495      char *s, *optfile;      char *s, *optfile;
496    
497      s = get_gnupg_path( );      s = get_gnupg_path ();
498      if( s == NULL )      if (!s)
499          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
500      optfile = make_filename( s, GPG_CONF, NULL );      optfile = make_filename (s, GPG_CONF, NULL);
501      fp = fopen( optfile, "wb" );      fp = fopen (optfile, "wb");
502      if( fp == NULL ) {        if (!fp) {
503          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
504          goto fail;          goto fail;
505      }      }
506      fwrite( options_skel, 1, strlen( options_skel ), fp );      fwrite (options_skel, 1, strlen (options_skel), fp);
507      fclose( fp );      fclose (fp);
508    
509  fail:  fail:
510      free_if_alloc( s );      free_if_alloc (s);
511      free_if_alloc( optfile );      free_if_alloc (optfile);
512      return 0;      return 0;
513  } /* create_gpg_options */  }
514    
515    
516  /*  /* Return the contents of the options file as a char buf. */
517   * Return the contents of the options file as a char buf.  char*
  */  
 char *  
518  get_gnupg_config (void)  get_gnupg_config (void)
519  {  {
520      FILE * fp;      FILE *fp;
521      char * p = NULL, * optfile = NULL;      char *p = NULL, *optfile = NULL;
522      int fsize, rc = 0;      int fsize, rc = 0;
523                    
524      optfile = get_gnupg_cfgfile ();      optfile = get_gnupg_cfgfile ();
525      if( optfile == NULL )      if (optfile == NULL)
526          return NULL;          return NULL;
527      fsize = get_file_size( optfile );      fsize = get_file_size (optfile);
528      if( !fsize ) {      if (!fsize) {
529          rc = create_gpg_options( );          rc = create_gpg_options ();
530          if ( rc )          if (rc)
531              return NULL;              return NULL;
532          fsize = get_file_size( optfile );          fsize = get_file_size (optfile);
533      }      }
534      if( fsize > 100000 )      if (fsize > 100000)
535          goto leave; /* too large */          goto leave; /* too large */
536      p = new char[fsize+1];      p = new char[fsize+1];
537      if( p == NULL )      if (!p)
538          BUG( NULL );          BUG (NULL);
539      fp = fopen( optfile, "rb" );      fp = fopen( optfile, "rb" );
540      if( fp == NULL ) {      if (!fp) {
541          free_if_alloc( p );          free_if_alloc (p);
542          return NULL;          return NULL;
543      }      }
544      fread( p, 1, fsize, fp );      fread (p, 1, fsize, fp);
545      fclose( fp );      fclose (fp);
546      p[fsize] = '\0';      p[fsize] = '\0';
547      free_if_alloc( optfile );      free_if_alloc (optfile);
548    
549  leave:  leave:
550      return p;      return p;
551  } /* get_gnupg_config */  }
552    
553    
554    /* Set the default key in the gpg.conf.
555       If @key is NULL, the entry will be deleted. */
556  int  int
557  set_gnupg_default_key (const char * key)  set_gnupg_default_key (const char *key)
558  {  {
559      gpg_optfile_t opt;      gpg_optfile_t opt;
560      gpg_option_t e;      gpg_option_t e;
# Line 516  set_gnupg_default_key (const char * key) Line 563  set_gnupg_default_key (const char * key)
563    
564      optfile = get_gnupg_cfgfile ();      optfile = get_gnupg_cfgfile ();
565      if (!optfile)      if (!optfile)
566          return -1;          return WPTERR_FILE_OPEN;
567      rc = parse_gpg_options (optfile, &opt);      rc = parse_gpg_options (optfile, &opt);
568      if( rc ) {      if (rc) {
569          free_if_alloc (optfile);          free_if_alloc (optfile);
570          return -1;          return WPTERR_GENERAL;
571      }      }
572      e = find_option (opt, "default-key");      e = find_option (opt, "default-key");
573      if (e) {      if (e && !key)
574            e->used = 0;
575        else if (e) {
576          free_if_alloc (e->val);          free_if_alloc (e->val);
577          e->val = m_strdup (key);          e->val = m_strdup (key);
578          e->used = 1;          e->used = 1;
579      }      }
580      else      else if (key)
581          add_entry (opt, ENTRY_MULTI, "default-key", key);          add_entry (opt, ENTRY_MULTI, "default-key", key);
582      rc = commit_gpg_options (optfile, opt);      rc = commit_gpg_options (optfile, opt);
583    
# Line 536  set_gnupg_default_key (const char * key) Line 585  set_gnupg_default_key (const char * key)
585      release_gpg_options (opt);      release_gpg_options (opt);
586    
587      return rc;      return rc;
588  } /* set_gnupg_default_key */  }
589    
590    
591  /*  /* Set the contents of the options file. */
  * Set the contents of the options file.  
  */  
592  int  int
593  set_gnupg_options( const char *buf, size_t buflen )  set_gnupg_options (const char *buf, size_t buflen)
594  {  {
595      FILE *fp;        FILE *fp;  
596      char *optfile = NULL;      char *optfile = NULL;
597    
598      optfile = get_gnupg_cfgfile( );      optfile = get_gnupg_cfgfile ();
599      if( optfile == NULL )      if (!optfile)
600          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
601    
602      fp = fopen( optfile, "wb" );      fp = fopen (optfile, "wb");
603      if( fp == NULL ) {      if (!fp) {
604          free_if_alloc( optfile );          free_if_alloc (optfile);
605          return WPTERR_FILE_CREAT;          return WPTERR_FILE_CREAT;
606      }      }
607      fwrite( buf, 1, buflen, fp );      fwrite (buf, 1, buflen, fp);
608      fclose( fp );      fclose (fp);
609      free_if_alloc( optfile );      free_if_alloc (optfile);
610      return 0;      return 0;
611  } /* set_gnupg_options */  }
612    
613    
614  /*  /*
615   * Check if the line contains a valid GPG argument.   * Check if the line contains a valid GPG argument.
616   */   */
617  static int  static int
618  check_line( const char *buf )  check_line (const char *buf)
619  {  {
620      int j, len;      int j, len;
621      int rc = 0;      int rc = 0;
622    
623      if( *buf == '#' || *buf == '\r' || *buf == '\n' )      if (*buf == '#' || *buf == '\r' || *buf == '\n')
624          return 1;          return 1;
625      rc = 0;      rc = 0;
626      for ( j = 0; valid_gpg_args[j]; j++ ) {      for (j = 0; valid_gpg_args[j]; j++) {
627          len = strlen( valid_gpg_args[j] );          len = strlen (valid_gpg_args[j]);
628          if( !strncmp( valid_gpg_args[j], buf, len ) )          if (!strncmp (valid_gpg_args[j], buf, len))
629              rc = 1;                  rc = 1;
630      }      }
631    
632      return rc;      return rc;
633  } /* check_line */  }
634    
635    
636  int  int
637  check_gnupg_options( const char *buf )  check_gnupg_options (const char *buf)
638  {  {
639      char line[1024];      char line[1024];
640      int nbytes = 0;      int nbytes = 0;
# Line 605  check_gnupg_options( const char *buf ) Line 653  check_gnupg_options( const char *buf )
653      }      }
654    
655      return 0;      return 0;
656  } /* check_gnupg_options */  }
657    
658    
659  /* Store the last access of the file inside the watcher @ctx. */  /* Store the last access of the file inside the watcher @ctx. */
# Line 618  get_last_gnupg_access (gpg_watcher_s *ct Line 666  get_last_gnupg_access (gpg_watcher_s *ct
666    
667      path = get_gnupg_path ();      path = get_gnupg_path ();
668      file =  make_filename (path, ctx->object, NULL);      file =  make_filename (path, ctx->object, NULL);
669      fd = CreateFile (file, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_ALWAYS, 0, NULL);      fd = CreateFile (file, GENERIC_READ, FILE_SHARE_READ, NULL,
670                         OPEN_ALWAYS, 0, NULL);
671      if (fd == INVALID_HANDLE_VALUE) {      if (fd == INVALID_HANDLE_VALUE) {
672          free_if_alloc (path);          free_if_alloc (path);
673          free_if_alloc (file);          free_if_alloc (file);
# Line 641  check_last_gnupg_access (gpg_watcher_s * Line 690  check_last_gnupg_access (gpg_watcher_s *
690      if (ctx->last_access.dwHighDateTime != ctx->access.dwHighDateTime &&      if (ctx->last_access.dwHighDateTime != ctx->access.dwHighDateTime &&
691          ctx->last_access.dwLowDateTime != ctx->access.dwLowDateTime)          ctx->last_access.dwLowDateTime != ctx->access.dwLowDateTime)
692          ctx->modified = 1;          ctx->modified = 1;
693        
694        /* XXX: find a better way. without it, winpt --keymanager loads
695                the key cache twice. */
696        if (ctx->last_access.dwLowDateTime == 0)
697            ctx->modified = 0;
698    
699      ctx->last_access.dwLowDateTime = ctx->access.dwLowDateTime;      ctx->last_access.dwLowDateTime = ctx->access.dwLowDateTime;
700      ctx->last_access.dwHighDateTime = ctx->access.dwHighDateTime;      ctx->last_access.dwHighDateTime = ctx->access.dwHighDateTime;
# Line 656  init_gnupg_table (void) Line 710  init_gnupg_table (void)
710    
711      for (j = 0; j < gpg_table_count; j++) {      for (j = 0; j < gpg_table_count; j++) {
712          p = gpg_table[j].object = m_strdup (gpg_objs[j]);          p = gpg_table[j].object = m_strdup (gpg_objs[j]);
         if (!p)  
             BUG (NULL);  
713          memset (&gpg_table[j].access, 0, sizeof (FILETIME));          memset (&gpg_table[j].access, 0, sizeof (FILETIME));
714          memset (&gpg_table[j].last_access, 0, sizeof (FILETIME));          memset (&gpg_table[j].last_access, 0, sizeof (FILETIME));
715          gpg_table[j].modified = 0;          gpg_table[j].modified = 0;
# Line 747  get_gnupg_keyring_from_options (const ch Line 799  get_gnupg_keyring_from_options (const ch
799    
800  /* XXX: does not work with write-protected floppies */  /* XXX: does not work with write-protected floppies */
801  static int  static int
802  my_access (const char * fname)  my_access (const char *fname)
803  {  {
804      HANDLE hd;      HANDLE hd;
805      hd = CreateFile (fname, GENERIC_WRITE, FILE_SHARE_WRITE,      hd = CreateFile (fname, GENERIC_WRITE, FILE_SHARE_WRITE,
# Line 759  my_access (const char * fname) Line 811  my_access (const char * fname)
811  }  }
812    
813    
814    /* Check the file permissions of the public keyring.
815       If @showmsg is 1 output a message in case of errors.
816       Return value: 1 if read-only attribute
817                     2 if file is opened by another process exclusively. */
818  int  int
819  gpg_check_permissions (int showmsg)  gpg_check_permissions (int showmsg)
820  {  {
821      char * p, * name = NULL;      char *p = NULL;
822        char *name = NULL;
823      int failed = 0, ans=0, attrs=0;      int failed = 0, ans=0, attrs=0;
824    
825      p = get_gnupg_path ();      p = get_gnupg_path ();
826      check_keyring (&p);      if (p && check_keyring (&p)) {
     if (p) {  
827          name = make_filename (p, "pubring", "gpg");          name = make_filename (p, "pubring", "gpg");
         free_if_alloc (p);  
828          if ((attrs=GetFileAttributes (name)) & FILE_ATTRIBUTE_READONLY) {          if ((attrs=GetFileAttributes (name)) & FILE_ATTRIBUTE_READONLY) {
829              ans = msg_box (NULL,              ans = msg_box (NULL,
830                             _("The selected keyring has the read-only file\n"                             _("The selected keyring has the read-only file\n"
# Line 785  gpg_check_permissions (int showmsg) Line 840  gpg_check_permissions (int showmsg)
840                  }                  }
841              }              }
842              else if (ans == IDNO) {              else if (ans == IDNO) {
843                  /*                  /* All commands with write access will be disabled. */
                 msg_box (NULL, _("All commands with write access to the keyring\n"  
                                  "will be disabled."), _("GPG Information"), MB_INFO);  
                 */  
844                  failed = 1;                  failed = 1;
845              }              }
846          }          }
# Line 804  gpg_check_permissions (int showmsg) Line 856  gpg_check_permissions (int showmsg)
856              failed = 2;              failed = 2;
857          }          }
858      }      }
859        free_if_alloc (p);
860      free_if_alloc (name);      free_if_alloc (name);
861      return failed;      return failed;
862  } /* gpg_check_permissions */  }
863    
864    
865  /* Check the GPG home dir. If all methods failed, try to  /* Check the GPG home dir. First try to read the 'HomeDir' registry entry,
866     create the default folder. */     then check for $APPDATA\gnupg. Create the dir if it does not exists. */
867  static int  int
868  check_homedir (void)  gnupg_check_homedir (void)
869  {        {      
870      char *homedir = NULL;      char *homedir = NULL;
871      int yes = 0;      int val = 0;
872        int rc = 0;
873    
874      homedir = get_reg_entry_gpg ("HomeDir");      homedir = get_reg_entry_gpg (GPG_REG_HOME);
     if (!homedir)  
         homedir = multi_gnupg_path ();  
875      if (!homedir)      if (!homedir)
876          homedir = m_strdup ("c:\\gnupg");          homedir = multi_gnupg_path (0);
877      if (homedir) {      if (homedir) {
878          if (GetFileAttributes (homedir) == 0xFFFFFFFF) {          if (GetFileAttributes (homedir) == 0xFFFFFFFF) {
879              yes = log_box (_("Preferences"), MB_YESNO,              val = log_box (_("Preferences"), MB_YESNO,
880                             _("%s does not exit.\n"                             _("%s does not exit.\n"
881                               "Do you want to create this directory?"), homedir);                               "Do you want to create this directory?"), homedir);
882              if (yes == IDYES) {              if (val == IDYES) {
883                  BOOL ec = CreateDirectory (homedir, NULL);                  if (!CreateDirectory (homedir, NULL))
884                  free_if_alloc (homedir);                      rc = WPTERR_DIR_CREAT;
                 if (ec == FALSE)  
                     return WPTERR_DIR_CREAT;  
                 return 0;  
885              }              }
886              return WPTERR_DIR_OPEN;              else
887          }                  rc = WPTERR_DIR_OPEN;
         free_if_alloc (homedir);  
     }  
     return 0;  
 }  
   
   
 int  
 gnupg_check_homedir (void)  
 {        
     char *homedir = NULL;  
     char *prog = NULL;  
     int rc = 0, ec = 0;  
       
     rc = check_homedir ();  
     if (rc)  
         return rc;  
     if ((homedir = get_reg_entry_gpg ("HomeDir")) &&  
         !(prog = get_reg_entry_gpg ("gpgProgram" ))) {  
         prog = make_filename (homedir, "gpg", "exe");  
         if (file_exist_check (prog) == 0) {  
             rc = set_reg_entry_gpg ("gpgProgram", prog);  
             if (rc)  
                 goto fail;  
888          }          }
889          free_if_alloc (homedir);          free_if_alloc (homedir);
         free_if_alloc (prog);  
         return rc;  
890      }      }
     if ((prog = get_reg_entry_gpg ("gpgProgram"))  
         && file_exist_check (prog)) {  
         free_if_alloc (prog);  
         homedir = get_reg_entry_gpg ("HomeDir");  
         if (!homedir) {  
             rc = WPTERR_GENERAL;  
             goto fail;  
         }  
         prog = make_filename (homedir, "gpg", "exe");  
         if (file_exist_check (prog) == 0) {  
             rc = set_reg_entry_gpg ("gpgProgram", prog);  
             if (rc)  
                 goto fail;  
             free_if_alloc (prog);  
             return rc;  
         }  
     }  
       
     /* Change the return code if homedir doesn't exist or if the program  
        doesn't exist. Note that exist_checks return 0 to suggest existance. */  
     if ((!homedir || dir_exist_check (homedir)))  
         rc = WPTERR_GENERAL;  
       
 fail:  
     free_if_alloc (homedir);  
     free_if_alloc (prog);  
891      return rc;      return rc;
892  } /* gnupg_check_homedir */  }
893    
894    
895  int  int
# Line 907  gnupg_copy_keyrings (void) Line 905  gnupg_copy_keyrings (void)
905          return WPTERR_GENERAL;          return WPTERR_GENERAL;
906      hwnd = GetDesktopWindow ();      hwnd = GetDesktopWindow ();
907    
908      pring = get_filename_dlg (hwnd, FILE_OPEN, _("Please choose your public keyring"),      pring = get_fileopen_dlg (hwnd, _("Please choose your Public Keyring"),
909                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"),NULL);                                "GPG Keyrings (*.gpg)\0*.gpg\0\0",NULL);
910      if (!pring) {      if (!pring) {
911          msg_box (hwnd, _("No keyring was chosen. Exit."), _("WinPT Error"), MB_ERR);          msg_box (hwnd, _("No keyring was chosen. Exit."),
912                     _("WinPT Error"), MB_ERR);
913          free_if_alloc (path);          free_if_alloc (path);
914          return WPTERR_GENERAL;          return WPTERR_GENERAL;
915      }      }
916      file = make_filename (path, "pubring", "gpg");      file = make_filename (path, "pubring", "gpg");
917      if (file_exist_check (file) == 0) {      if (file_exist_check (file) == 0) {
918          id = msg_box (hwnd, _("Overwrite old public keyring?"), "WinPT", MB_INFO|MB_YESNO);          id = msg_box (hwnd, _("Overwrite old public keyring?"),
919                          "WinPT", MB_INFO|MB_YESNO);
920          if (id == IDNO)          if (id == IDNO)
921              goto fail;              goto fail;
922      }      }
# Line 927  gnupg_copy_keyrings (void) Line 927  gnupg_copy_keyrings (void)
927      }      }
928      free_if_alloc (file);      free_if_alloc (file);
929    
930      sring = get_filename_dlg (hwnd, FILE_OPEN, _("Please choose your secret keyring"),      sring = get_fileopen_dlg (hwnd, _("Please choose your Secret Keyring"),
931                                _("GPG Keyrings (*.gpg)\0*.gpg\0\0"), NULL);                                "GPG Keyrings (*.gpg)\0*.gpg\0\0", NULL);
932      if (!sring) {      if (!sring) {
933          msg_box( NULL, _("No keyring was chosen. Exit."), _("WinPT Error"), MB_ERR );          msg_box (NULL, _("No keyring was chosen. Exit."),
934                     _("WinPT Error"), MB_ERR);
935          return WPTERR_GENERAL;          return WPTERR_GENERAL;
936      }      }
937      file = make_filename (path, "secring", "gpg");      file = make_filename (path, "secring", "gpg");
938      if (file_exist_check (file) == 0) {      if (file_exist_check (file) == 0) {
939          id = msg_box (hwnd, _("Overwrite old secret keyring?"), "WinPT", MB_INFO|MB_YESNO);          id = msg_box (hwnd, _("Overwrite old secret keyring?"),
940          if( id == IDNO )                        "WinPT", MB_INFO|MB_YESNO);
941            if (id == IDNO)
942              goto fail;              goto fail;
943      }      }
944      if (!CopyFile (sring, file, FALSE)) {      if (!CopyFile (sring, file, FALSE)) {
945          msg_box( NULL, _("Could not copy file."), _("WinPT Error"), MB_ERR);          msg_box (NULL, _("Could not copy file."), _("WinPT Error"), MB_ERR);
946          rc = WPTERR_FILE_READ;          rc = WPTERR_FILE_READ;
947      }      }
948    
# Line 948  fail: Line 950  fail:
950      free_if_alloc (file);      free_if_alloc (file);
951      free_if_alloc (path);      free_if_alloc (path);
952      return rc;      return rc;
953  } /* gnupg_import_keyrings */  }
954    
955    
956    /* Backup the gpg.conf file. */
957  void  void
958  gnupg_backup_options (void)  gnupg_backup_options (void)
959  {  {
# Line 958  gnupg_backup_options (void) Line 961  gnupg_backup_options (void)
961      char bak[512];      char bak[512];
962    
963      cfgfile = get_gnupg_cfgfile ();      cfgfile = get_gnupg_cfgfile ();
964      if (cfgfile == NULL)      if (!cfgfile)
965          return;          return;
966      _snprintf (bak, DIM (bak)-1, "%s.bak", cfgfile);      _snprintf (bak, DIM (bak)-1, "%s.bak", cfgfile);
967      CopyFile (cfgfile, bak, FALSE);      CopyFile (cfgfile, bak, FALSE);
968      free_if_alloc (cfgfile);      free_if_alloc (cfgfile);
969  } /* gnupg_backup_options */  }
   
970    
971    
972  static int  static int
973  backup_one_file (const char *srcpath, const char *srcn,  backup_one_file (const char *srcpath, const char *srcn,
974                   const char *dstpath, const char *dstn)                   const char *dstpath, const char *dstn)
975  {  {
976      char * src, * dst;      char *src, *dst;
977      BOOL rc;      BOOL rc;
978    
979      src = make_filename (srcpath, srcn, "gpg");      src = make_filename (srcpath, srcn, "gpg");
# Line 983  backup_one_file (const char *srcpath, co Line 985  backup_one_file (const char *srcpath, co
985      rc = CopyFile (src, dst, FALSE);      rc = CopyFile (src, dst, FALSE);
986      free_if_alloc (src);      free_if_alloc (src);
987      free_if_alloc (dst);      free_if_alloc (dst);
988      if (!rc)      if (!rc) {
     {  
989          log_box (_("Backup"), MB_ERR, _("Backup keyring \"%s\" failed"), srcn);          log_box (_("Backup"), MB_ERR, _("Backup keyring \"%s\" failed"), srcn);
990          return WPTERR_GENERAL;          return WPTERR_GENERAL;
991      }      }
992      return 0;      return 0;
993  } /* backup_one_file */  }
994    
995    
996    /* Figure out first public keyring which is not empty.
997       Return value: 1 on success. */
998  static int  static int
999  check_keyring (char ** r_path)  check_keyring (char **r_path)
1000  {  {
1001      char * p;      char *p;
1002      char * opt, * name;      char *opt;
1003        char *name;
1004    
1005      if (!*r_path)      if (!*r_path)
1006          return 0;          return 0;
1007      p = make_filename (*r_path, "pubring", "gpg");      p = make_filename (*r_path, "pubring", "gpg");
1008      if (!p || get_file_size (p) > 0)      if (!p || get_file_size (p) <= 0)
1009          return 0;          return 0;
1010    
1011      opt = get_gnupg_cfgfile ();      opt = get_gnupg_cfgfile ();
# Line 1013  check_keyring (char ** r_path) Line 1017  check_keyring (char ** r_path)
1017      if (!name)      if (!name)
1018          return 0;          return 0;
1019      p = strrchr (name, '\\');      p = strrchr (name, '\\');
1020      if (!p)      if (!p) {
     {  
1021          free_if_alloc (name);          free_if_alloc (name);
1022          return 0;                return 0;      
1023      }      }
# Line 1027  check_keyring (char ** r_path) Line 1030  check_keyring (char ** r_path)
1030  }  }
1031    
1032    
1033    /* Return a temp name based on the day of the week. */
1034  static char*  static char*
1035  get_backup_name (const char *templ)  get_backup_name (const char *templ)
1036  {  {
1037      struct tm *tm;      struct tm *tm;
1038      char *p;      char *p;
1039        time_t t;
1040    
1041      time_t t = time (NULL);      t = time (NULL);
1042      tm = localtime (&t);      tm = localtime (&t);
1043      p = new char [strlen (templ) + 8 + 1];      p = new char [strlen (templ) + 8 + 1];
1044      if (!p)      if (!p)
# Line 1043  get_backup_name (const char *templ) Line 1048  get_backup_name (const char *templ)
1048  }  }
1049    
1050    
1051    /* Make backups of all keyrings. The public key ring is rotated like
1052       this pubring-%d.gpg.
1053       If @auto_backup is false, no action is performed.
1054       @include_secr indicated if the backup includes the secret keyring. */
1055  void  void
1056  gnupg_backup_keyrings (void)  gnupg_backup_keyrings (int auto_backup, int backup_mode, int include_secr)
1057  {  {
1058      char *srcpath = NULL, *dstpath = NULL;      char *srcpath = NULL, *dstpath = NULL;
1059      char *name=NULL;      char *name=NULL;
1060      int rc, bakmode=0;      int rc;
1061    
1062      if (!reg_prefs.auto_backup)      if (!auto_backup)
1063          return;          return;
1064      bakmode = reg_prefs.backup.mode;      srcpath = get_gnupg_path ();
     srcpath =  get_gnupg_path ();  
1065      check_keyring (&srcpath);      check_keyring (&srcpath);
1066      if (bakmode == 1) {      if (backup_mode == 1) {
1067          dstpath = get_gnupg_path ();          dstpath = multi_gnupg_path (1);
1068          check_keyring (&dstpath);          check_keyring (&dstpath);
1069      }      }
1070      else if (bakmode == 2) {      else if (backup_mode == 2) {
1071          char * tmpfile;          char *tmpfile;
1072          FILE * fp;          FILE *fp;
1073    
1074          dstpath = m_strdup (reg_prefs.backup.path);          dstpath = m_strdup (reg_prefs.backup.path);
         if (!dstpath)  
             BUG (0);  
1075          tmpfile = make_filename (reg_prefs.backup.path, "test", "tmp");          tmpfile = make_filename (reg_prefs.backup.path, "test", "tmp");
1076          fp = fopen (tmpfile, "wb");          fp = fopen (tmpfile, "wb");
1077          if (!fp)          if (!fp)
1078              rc = log_box (_("Backup"), MB_WARN|MB_RETRYCANCEL,              rc = log_box (_("Backup"), MB_WARN|MB_RETRYCANCEL,
1079                            _("The backup drive '%s' does not seems to accessable.\n"                            _("The backup drive '%s' does not seems to be accessable.\n"
1080                              "Please insert/check the drive to continue."), dstpath);                              "Please insert/check the drive to continue."), dstpath);
1081          else {          else {
1082              rc = 0;              rc = 0;
1083              fclose (fp);              fclose (fp);
1084              unlink (tmpfile);              remove (tmpfile);
1085          }          }
1086          free_if_alloc (tmpfile);          free_if_alloc (tmpfile);
1087          if (!fp || rc == IDCANCEL)          if (!fp || rc == IDCANCEL)
1088              return;              return;
1089      }      }
1090      else {      else {
1091          log_box (_("Backup"), MB_ERR, _("Invalid backup mode %d"), bakmode);          log_box (_("Backup"), MB_ERR, _("Invalid backup mode %d"), backup_mode);
1092          return;          return;
1093      }      }
1094      name = get_backup_name ("pubring-bak");      name = get_backup_name ("pubring-bak");
1095      rc = backup_one_file (srcpath, "pubring", dstpath, name);      rc = backup_one_file (srcpath, "pubring", dstpath, name);
1096      if (!rc)      if (!rc && include_secr)
1097          rc = backup_one_file (srcpath, "secring", dstpath, "secring-bak");          rc = backup_one_file (srcpath, "secring", dstpath, "secring-bak");
1098      free_if_alloc (name);      free_if_alloc (name);
1099      free_if_alloc (srcpath);      free_if_alloc (srcpath);
1100      free_if_alloc (dstpath);      free_if_alloc (dstpath);
1101  } /* gnupg_backup_keyrings */  }
1102    
1103    
1104  /* Display GPG error from file if possible. */  /* Display GPG error from file if possible. */
1105  void  void
1106  gnupg_display_error (void)  gnupg_display_error (void)
1107  {        {      
1108      char tmpath[512], * errstr;      char tmpath[512], *errstr;
1109      size_t size = 0;      size_t size = 0;
1110      FILE * fp;      FILE *fp;
1111    
1112      GetTempPath (sizeof tmpath - 32, (tmpath));      get_temp_name (tmpath, sizeof (tmpath), "gpg_stderr");
     strcat (tmpath, "gpg_stderr");  
1113      size = get_file_size (tmpath);      size = get_file_size (tmpath);
1114      if (file_exist_check (tmpath) || size <= 0)      if (file_exist_check (tmpath) || size <= 0)
1115          return;          return;
1116      fp = fopen( tmpath, "rb" );      fp = fopen( tmpath, "rb" );
1117      if (!fp) {      if (!fp) {
1118          msg_box( NULL, _("No GPG error description available."), _("GPG Error"), MB_INFO );          msg_box (NULL, _("No GPG error description available."),
1119                     _("GPG Error"), MB_INFO);
1120          return;          return;
1121      }      }
1122      errstr = new char[size+1];      errstr = new char[size+1];
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