Changed the scdaemon to handle concurrent sessions. Adjusted

gpg-agent accordingly. Code cleanups.

1 files changed, 51 insertions, 50 deletions

diff --git a/scd/app-common.h b/scd/app-common.h
index 594f93850..517286c49 100644
--- a/scd/app-common.h
+++ b/scd/app-common.h
@@ -46,56 +46,56 @@ struct app_ctx_s {
   struct app_local_s *app_local;  /* Local to the application. */
   struct {
     void (*deinit) (app_t app);
-    int (*learn_status) (app_t app, ctrl_t ctrl);
-    int (*readcert) (app_t app, const char *certid,
+    gpg_error_t (*learn_status) (app_t app, ctrl_t ctrl);
+    gpg_error_t (*readcert) (app_t app, const char *certid,
                      unsigned char **cert, size_t *certlen);
-    int (*readkey) (app_t app, const char *certid,
+    gpg_error_t (*readkey) (app_t app, const char *certid,
                     unsigned char **pk, size_t *pklen);
-    int (*getattr) (app_t app, ctrl_t ctrl, const char *name);
-    int (*setattr) (app_t app, const char *name,
-                    int (*pincb)(void*, const char *, char **),
+    gpg_error_t (*getattr) (app_t app, ctrl_t ctrl, const char *name);
+    gpg_error_t (*setattr) (app_t app, const char *name,
+                    gpg_error_t (*pincb)(void*, const char *, char **),
                     void *pincb_arg,
                     const unsigned char *value, size_t valuelen);
-    int (*sign) (app_t app,
+    gpg_error_t (*sign) (app_t app,
                  const char *keyidstr, int hashalgo,
-                 int (pincb)(void*, const char *, char **),
+                 gpg_error_t (*pincb)(void*, const char *, char **),
                  void *pincb_arg,
                  const void *indata, size_t indatalen,
                  unsigned char **outdata, size_t *outdatalen );
-    int (*auth) (app_t app, const char *keyidstr,
-                 int (*pincb)(void*, const char *, char **),
+    gpg_error_t (*auth) (app_t app, const char *keyidstr,
+                 gpg_error_t (*pincb)(void*, const char *, char **),
                  void *pincb_arg,
                  const void *indata, size_t indatalen,
                  unsigned char **outdata, size_t *outdatalen);
-    int (*decipher) (app_t app, const char *keyidstr,
-                     int (pincb)(void*, const char *, char **),
+    gpg_error_t (*decipher) (app_t app, const char *keyidstr,
+                     gpg_error_t (*pincb)(void*, const char *, char **),
                      void *pincb_arg,
                      const void *indata, size_t indatalen,
                      unsigned char **outdata, size_t *outdatalen);
-    int (*genkey) (app_t app, ctrl_t ctrl,
+    gpg_error_t (*genkey) (app_t app, ctrl_t ctrl,
                    const char *keynostr, unsigned int flags,
-                   int (*pincb)(void*, const char *, char **),
+                   gpg_error_t (*pincb)(void*, const char *, char **),
                    void *pincb_arg);
-    int (*change_pin) (app_t app, ctrl_t ctrl,
+    gpg_error_t (*change_pin) (app_t app, ctrl_t ctrl,
                        const char *chvnostr, int reset_mode,
-                       int (*pincb)(void*, const char *, char **),
+                       gpg_error_t (*pincb)(void*, const char *, char **),
                        void *pincb_arg);
-    int (*check_pin) (app_t app, const char *keyidstr,
-                      int (pincb)(void*, const char *, char **),
+    gpg_error_t (*check_pin) (app_t app, const char *keyidstr,
+                      gpg_error_t (*pincb)(void*, const char *, char **),
                       void *pincb_arg);
   } fnc;
 
 };
 
 #if GNUPG_MAJOR_VERSION == 1
-int app_select_openpgp (app_t app);
-int app_get_serial_and_stamp (app_t app, char **serial, time_t *stamp);
-int app_openpgp_storekey (app_t app, int keyno,
+gpg_error_t app_select_openpgp (app_t app);
+gpg_error_t app_get_serial_and_stamp (app_t app, char **serial, time_t *stamp);
+gpg_error_t app_openpgp_storekey (app_t app, int keyno,
                           unsigned char *template, size_t template_len,
                           time_t created_at,
                           const unsigned char *m, size_t mlen,
                           const unsigned char *e, size_t elen,
-                          int (*pincb)(void*, const char *, char **),
+                          gpg_error_t (*pincb)(void*, const char *, char **),
                           void *pincb_arg);
 #else
 /*-- app-help.c --*/
@@ -107,72 +107,73 @@ size_t app_help_read_length_of_cert (int slot, int fid, size_t *r_certoff);
 gpg_error_t select_application (ctrl_t ctrl, int slot, const char *name,
                                 app_t *r_app);
 void release_application (app_t app);
-int app_munge_serialno (app_t app);
-int app_get_serial_and_stamp (app_t app, char **serial, time_t *stamp);
-int app_write_learn_status (app_t app, ctrl_t ctrl);
-int app_readcert (app_t app, const char *certid,
+gpg_error_t app_munge_serialno (app_t app);
+gpg_error_t app_get_serial_and_stamp (app_t app, char **serial, time_t *stamp);
+gpg_error_t app_write_learn_status (app_t app, ctrl_t ctrl);
+gpg_error_t app_readcert (app_t app, const char *certid,
                   unsigned char **cert, size_t *certlen);
-int app_readkey (app_t app, const char *keyid,
+gpg_error_t app_readkey (app_t app, const char *keyid,
                  unsigned char **pk, size_t *pklen);
-int app_getattr (app_t app, ctrl_t ctrl, const char *name);
-int app_setattr (app_t app, const char *name,
-                 int (*pincb)(void*, const char *, char **),
+gpg_error_t app_getattr (app_t app, ctrl_t ctrl, const char *name);
+gpg_error_t app_setattr (app_t app, const char *name,
+                 gpg_error_t (*pincb)(void*, const char *, char **),
                  void *pincb_arg,
                  const unsigned char *value, size_t valuelen);
-int app_sign (app_t app, const char *keyidstr, int hashalgo,
-              int (pincb)(void*, const char *, char **),
+gpg_error_t app_sign (app_t app, const char *keyidstr, int hashalgo,
+              gpg_error_t (*pincb)(void*, const char *, char **),
               void *pincb_arg,
               const void *indata, size_t indatalen,
               unsigned char **outdata, size_t *outdatalen );
-int app_auth (app_t app, const char *keyidstr,
-              int (*pincb)(void*, const char *, char **),
+gpg_error_t app_auth (app_t app, const char *keyidstr,
+              gpg_error_t (*pincb)(void*, const char *, char **),
               void *pincb_arg,
               const void *indata, size_t indatalen,
               unsigned char **outdata, size_t *outdatalen);
-int app_decipher (app_t app, const char *keyidstr,
-                  int (pincb)(void*, const char *, char **),
+gpg_error_t app_decipher (app_t app, const char *keyidstr,
+                  gpg_error_t (*pincb)(void*, const char *, char **),
                   void *pincb_arg,
                   const void *indata, size_t indatalen,
                   unsigned char **outdata, size_t *outdatalen );
-int app_genkey (app_t app, ctrl_t ctrl,
+gpg_error_t app_genkey (app_t app, ctrl_t ctrl,
                 const char *keynostr, unsigned int flags,
-                int (*pincb)(void*, const char *, char **),
+                gpg_error_t (*pincb)(void*, const char *, char **),
                 void *pincb_arg);
-int app_get_challenge (app_t app, size_t nbytes, unsigned char *buffer);
-int app_change_pin (app_t app, ctrl_t ctrl,
+gpg_error_t app_get_challenge (app_t app, size_t nbytes,
+                               unsigned char *buffer);
+gpg_error_t app_change_pin (app_t app, ctrl_t ctrl,
                     const char *chvnostr, int reset_mode,
-                    int (*pincb)(void*, const char *, char **),
+                    gpg_error_t (*pincb)(void*, const char *, char **),
                     void *pincb_arg);
-int app_check_pin (app_t app, const char *keyidstr,
-                   int (*pincb)(void*, const char *, char **),
+gpg_error_t app_check_pin (app_t app, const char *keyidstr,
+                   gpg_error_t (*pincb)(void*, const char *, char **),
                    void *pincb_arg);
 
 
 /*-- app-openpgp.c --*/
-int app_select_openpgp (app_t app);
+gpg_error_t app_select_openpgp (app_t app);
 
-int app_openpgp_cardinfo (app_t app,
+gpg_error_t app_openpgp_cardinfo (app_t app,
                           char **serialno,
                           char **disp_name,
                           char **pubkey_url,
                           unsigned char **fpr1,
                           unsigned char **fpr2,
                           unsigned char **fpr3);
-int app_openpgp_storekey (app_t app, int keyno,
+gpg_error_t app_openpgp_storekey (app_t app, int keyno,
                           unsigned char *template, size_t template_len,
                           time_t created_at,
                           const unsigned char *m, size_t mlen,
                           const unsigned char *e, size_t elen,
-                          int (*pincb)(void*, const char *, char **),
+                          gpg_error_t (*pincb)(void*, const char *, char **),
                           void *pincb_arg);
-int app_openpgp_readkey (app_t app, int keyno,
+gpg_error_t app_openpgp_readkey (app_t app, int keyno,
                          unsigned char **m, size_t *mlen,
                          unsigned char **e, size_t *elen);
 /*-- app-nks.c --*/
-int app_select_nks (app_t app);
+gpg_error_t app_select_nks (app_t app);
 
 /*-- app-dinsig.c --*/
-int app_select_dinsig (app_t app);
+gpg_error_t app_select_dinsig (app_t app);
 
 /*-- app-p15.c --*/
 gpg_error_t app_select_p15 (app_t app);