diff options
Diffstat (limited to 'agent/query.c')
| -rw-r--r-- | agent/query.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/agent/query.c b/agent/query.c index 145aaca00..b514f6f5e 100644 --- a/agent/query.c +++ b/agent/query.c @@ -41,6 +41,14 @@ #define MAX_OPEN_FDS 20 #endif + +/* Because access to the pinentry must be serialized (it is and shall + be a global mutual dialog) we should better timeout further + requests after some time. 2 minutes seem to be a reasonable + time. */ +#define LOCK_TIMEOUT (1*60) + + static ASSUAN_CONTEXT entry_ctx = NULL; #ifdef USE_GNU_PTH static pth_mutex_t entry_lock = PTH_MUTEX_INIT; @@ -104,11 +112,23 @@ start_pinentry (CTRL ctrl) int i; #ifdef USE_GNU_PTH - if (!pth_mutex_acquire (&entry_lock, 0, NULL)) + { + pth_event_t evt; + + evt = pth_event (PTH_EVENT_TIME, pth_timeout (LOCK_TIMEOUT, 0)); + if (!pth_mutex_acquire (&entry_lock, 0, evt)) { - log_error ("failed to acquire the entry lock\n"); - return gpg_error (GPG_ERR_INTERNAL); + if (pth_event_occurred (evt)) + rc = gpg_error (GPG_ERR_TIMEOUT); + else + rc = gpg_error (GPG_ERR_INTERNAL); + pth_event_free (evt, PTH_FREE_THIS); + log_error (_("failed to acquire the pinentry lock: %s\n"), + gpg_strerror (rc)); + return rc; } + pth_event_free (evt, PTH_FREE_THIS); + } #endif if (entry_ctx) |