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common: New function get_assuan_server_version.
* common/asshelp.c: Include membuf.h. (get_assuan_server_version): New. * g10/call-agent.c (agent_get_version): Use new function. -- Signed-off-by: Werner Koch <wk@gnupg.org>
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@ -42,6 +42,7 @@
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#include "exechelp.h"
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#include "sysutils.h"
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#include "status.h"
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#include "membuf.h"
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#include "asshelp.h"
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/* The type we use for lock_agent_spawning. */
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@ -699,3 +700,40 @@ start_new_dirmngr (assuan_context_t *r_ctx,
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*r_ctx = ctx;
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return 0;
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}
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/* Return the version of a server using "GETINFO version". On success
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0 is returned and R_VERSION receives a malloced string with the
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version which must be freed by the caller. On error NULL is stored
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at R_VERSION and an error code returned. Mode is in general 0 but
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certian values may be used to modify the used version command:
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MODE == 0 = Use "GETINFO version"
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MODE == 2 - Use "SCD GETINFO version"
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*/
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gpg_error_t
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get_assuan_server_version (assuan_context_t ctx, int mode, char **r_version)
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{
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gpg_error_t err;
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membuf_t data;
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init_membuf (&data, 64);
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err = assuan_transact (ctx,
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mode == 2? "SCD GETINFO version"
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/**/ : "GETINFO version",
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put_membuf_cb, &data,
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NULL, NULL, NULL, NULL);
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if (err)
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{
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xfree (get_membuf (&data, NULL));
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*r_version = NULL;
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}
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else
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{
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put_membuf (&data, "", 1);
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*r_version = get_membuf (&data, NULL);
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if (!*r_version)
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err = gpg_error_from_syserror ();
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}
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return err;
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}
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@ -74,6 +74,10 @@ start_new_dirmngr (assuan_context_t *r_ctx,
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gpg_error_t (*status_cb)(ctrl_t, int, ...),
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ctrl_t status_cb_arg);
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/* Return the version of a server using "GETINFO version". */
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gpg_error_t get_assuan_server_version (assuan_context_t ctx,
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int mode, char **r_version);
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/*-- asshelp2.c --*/
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@ -2408,27 +2408,11 @@ gpg_error_t
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agent_get_version (ctrl_t ctrl, char **r_version)
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{
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gpg_error_t err;
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membuf_t data;
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err = start_agent (ctrl, 0);
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if (err)
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return err;
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init_membuf (&data, 64);
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err = assuan_transact (agent_ctx, "GETINFO version",
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put_membuf_cb, &data,
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NULL, NULL, NULL, NULL);
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if (err)
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{
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xfree (get_membuf (&data, NULL));
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*r_version = NULL;
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}
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else
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{
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put_membuf (&data, "", 1);
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*r_version = get_membuf (&data, NULL);
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if (!*r_version)
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err = gpg_error_from_syserror ();
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}
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err = get_assuan_server_version (agent_ctx, 0, r_version);
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return err;
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}
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