added conversation callback support for transactions

16 files changed, 151 insertions, 67 deletions

diff --git a/lib/libalpm/alpm.c b/lib/libalpm/alpm.c
index d0e31e52..2b6c2f5f 100644
--- a/lib/libalpm/alpm.c
+++ b/lib/libalpm/alpm.c
@@ -545,7 +545,7 @@ void *alpm_trans_getinfo(unsigned char parm)
 	return(data);
 }
 
-int alpm_trans_init(unsigned char type, unsigned char flags, alpm_trans_cb_event event)
+int alpm_trans_init(unsigned char type, unsigned char flags, alpm_trans_cb_event event, alpm_trans_cb_conv conv)
 {
 	/* Sanity checks */
 	ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));
@@ -557,7 +557,7 @@ int alpm_trans_init(unsigned char type, unsigned char flags, alpm_trans_cb_event
 		RET_ERR(PM_ERR_MEMORY, -1);
 	}
 
-	return(trans_init(handle->trans, type, flags, event));
+	return(trans_init(handle->trans, type, flags, event, conv));
 }
 
 int alpm_trans_sysupgrade()
diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h
index 68e8b7b0..3ab747e3 100644
--- a/lib/libalpm/alpm.h
+++ b/lib/libalpm/alpm.h
@@ -211,7 +211,7 @@ enum {
 #define PM_TRANS_FLAG_RECURSE 0x20
 #define PM_TRANS_FLAG_DBONLY  0x40
 
-/* Events */
+/* Transaction Events */
 enum {
 	PM_TRANS_EVT_CHECKDEPS_START = 1,
 	PM_TRANS_EVT_CHECKDEPS_DONE,
@@ -229,11 +229,19 @@ enum {
 	PM_TRANS_EVT_UPGRADE_DONE
 };
 
-/* Event callback */
+/* Transaction Conversations (ie, questions) */
+enum {
+	PM_TRANS_CONV_INSTALL_IGNOREPKG,
+	PM_TRANS_CONV_REPLACE_PKG,
+	PM_TRANS_CONV_LOCAL_NEWER,
+	PM_TRANS_CONV_LOCAL_UPTODATE
+};
+
+/* Transaction Event callback */
 typedef void (*alpm_trans_cb_event)(unsigned char, void *, void *);
 
-/* Conversation callback */
-typedef void (*alpm_trans_cb_conv)(unsigned char, void *, void *);
+/* Transaction Conversation callback */
+typedef void (*alpm_trans_cb_conv)(unsigned char, void *, void *, void *, int *);
 
 /* Info parameters */
 enum {
@@ -244,7 +252,7 @@ enum {
 };
 
 void *alpm_trans_getinfo(unsigned char parm);
-int alpm_trans_init(unsigned char type, unsigned char flags, alpm_trans_cb_event cb_event);
+int alpm_trans_init(unsigned char type, unsigned char flags, alpm_trans_cb_event cb_event, alpm_trans_cb_conv conv);
 int alpm_trans_sysupgrade();
 int alpm_trans_addtarget(char *target);
 int alpm_trans_prepare(PM_LIST **data);
diff --git a/lib/libalpm/deps.c b/lib/libalpm/deps.c
index 9a35e665..b92d2a45 100644
--- a/lib/libalpm/deps.c
+++ b/lib/libalpm/deps.c
@@ -543,7 +543,7 @@ PMList* removedeps(pmdb_t *db, PMList *targs)
  *
  * make sure *list and *trail are already initialized
  */
-int resolvedeps(pmdb_t *local, PMList *dbs_sync, pmpkg_t *syncpkg, PMList *list, PMList *trail)
+int resolvedeps(pmdb_t *local, PMList *dbs_sync, pmpkg_t *syncpkg, PMList *list, PMList *trail, pmtrans_t *trans)
 {
 	PMList *i, *j;
 	PMList *targ;
@@ -632,13 +632,13 @@ int resolvedeps(pmdb_t *local, PMList *dbs_sync, pmpkg_t *syncpkg, PMList *list,
 					}
 				}
 				if(found) {
-					/* ORE
-					usedep = yesno("%s requires %s, but it is in IgnorePkg.  Install anyway? [Y/n] ",
-						miss->target, sync->pkg->name);*/
+					pmpkg_t *dummypkg = pkg_dummy(miss->target, NULL);
+					QUESTION(trans, PM_TRANS_CONV_INSTALL_IGNOREPKG, dummypkg, sync, NULL, &usedep);
+					FREEPKG(dummypkg);
 				}
 				if(usedep) {
 					trail = pm_list_add(trail, sync);
-					if(resolvedeps(local, dbs_sync, sync, list, trail)) {
+					if(resolvedeps(local, dbs_sync, sync, list, trail, trans)) {
 						goto error;
 					}
 					_alpm_log(PM_LOG_FLOW2, "adding dependency %s-%s", sync->name, sync->version);
diff --git a/lib/libalpm/deps.h b/lib/libalpm/deps.h
index cc0d891b..44718808 100644
--- a/lib/libalpm/deps.h
+++ b/lib/libalpm/deps.h
@@ -40,7 +40,7 @@ PMList *sortbydeps(PMList *targets, int mode);
 PMList *checkdeps(pmdb_t *db, unsigned char op, PMList *packages);
 int splitdep(char *depstr, pmdepend_t *depend);
 PMList *removedeps(pmdb_t *db, PMList *targs);
-int resolvedeps(pmdb_t *local, PMList *dbs_sync, pmpkg_t *syncpkg, PMList *list, PMList *trail);
+int resolvedeps(pmdb_t *local, PMList *dbs_sync, pmpkg_t *syncpkg, PMList *list, PMList *trail, pmtrans_t *trans);
 
 #endif /* _ALPM_DEPS_H */
 
diff --git a/lib/libalpm/package.c b/lib/libalpm/package.c
index 3b0669fc..93f234e7 100644
--- a/lib/libalpm/package.c
+++ b/lib/libalpm/package.c
@@ -132,6 +132,27 @@ void pkg_free(pmpkg_t *pkg)
 	return;
 }
 
+/* Create a dummy package struct that only contains the package
+ * name and version.  This is useful when we're only passing
+ * name/version data, but it needs to be wrapped in a pmpkg_t
+ */
+pmpkg_t* pkg_dummy(const char *name, const char *version)
+{
+	pmpkg_t *pkg = pkg_new();
+	if(pkg == NULL) {
+		return(NULL);
+	}
+
+	if(name) {
+		STRNCPY(pkg->name, name, PKG_NAME_LEN-1);
+	}
+	if(version) {
+		STRNCPY(pkg->version, version, PKG_VERSION_LEN-1);
+	}
+
+	return(pkg);
+}
+
 /* Parses the package description file for the current package
  *
  * Returns: 0 on success, 1 on error
diff --git a/lib/libalpm/package.h b/lib/libalpm/package.h
index a6b8b224..41566143 100644
--- a/lib/libalpm/package.h
+++ b/lib/libalpm/package.h
@@ -89,6 +89,7 @@ do { \
 pmpkg_t* pkg_new();
 pmpkg_t *pkg_dup(pmpkg_t *pkg);
 void pkg_free(pmpkg_t *pkg);
+pmpkg_t* pkg_dummy(const char *name, const char *version);
 pmpkg_t *pkg_load(char *pkgfile);
 int pkg_isin(pmpkg_t *needle, PMList *haystack);
 int pkg_splitname(char *target, char *name, char *version);
diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c
index 27c4dac5..3fa33452 100644
--- a/lib/libalpm/sync.c
+++ b/lib/libalpm/sync.c
@@ -154,37 +154,43 @@ int sync_sysupgrade(pmtrans_t *trans, pmdb_t *db_local, PMList *dbs_sync)
 						if(pm_list_is_strin(lpkg->name, handle->ignorepkg)) {
 							_alpm_log(PM_LOG_WARNING, "%s-%s: ignoring package upgrade (to be replaced by %s-%s)",
 								lpkg->name, lpkg->version, spkg->name, spkg->version);
-						} else /* ORE if(yesno(":: Replace %s with %s from \"%s\"? [Y/n] ", lpkg->name, spkg->name, ((pmdb_t *)i->data)->treename)) */ {
-							/* if confirmed, add this to the 'final' list, designating 'lpkg' as
-							 * the package to replace.
-							 */
-							pmsyncpkg_t *sync;
-							pmpkg_t *dummy = pkg_new();
-							if(dummy == NULL) {
-								pm_errno = PM_ERR_MEMORY;
-								goto error;
-							}
-							STRNCPY(dummy->name, lpkg->name, PKG_NAME_LEN);
-							dummy->requiredby = _alpm_list_strdup(lpkg->requiredby);
-							/* check if spkg->name is already in the packages list. */
-							sync = find_pkginsync(spkg->name, trans->packages);
-							if(sync) {
-								/* found it -- just append to the replaces list */
-								sync->data = pm_list_add(sync->data, dummy);
-							} else {
-								/* none found -- enter pkg into the final sync list */
-								sync = sync_new(PM_SYNC_TYPE_REPLACE, spkg, NULL);
-								if(sync == NULL) {
-									FREEPKG(dummy);
+						} else {
+							/* get confirmation for the replacement */
+							int doreplace = 0;
+							QUESTION(trans, PM_TRANS_CONV_REPLACE_PKG, lpkg, spkg, ((pmdb_t *)i->data)->treename, &doreplace);
+
+							if(doreplace) {
+								/* if confirmed, add this to the 'final' list, designating 'lpkg' as
+								 * the package to replace.
+								 */
+								pmsyncpkg_t *sync;
+								pmpkg_t *dummy = pkg_dummy(lpkg->name, NULL);
+								if(dummy == NULL) {
 									pm_errno = PM_ERR_MEMORY;
 									goto error;
 								}
-								sync->data = pm_list_add(sync->data, dummy);
-								trans->packages = pm_list_add(trans->packages, sync);
+								dummy->requiredby = _alpm_list_strdup(lpkg->requiredby);
+								/* check if spkg->name is already in the packages list. */
+								sync = find_pkginsync(spkg->name, trans->packages);
+								if(sync) {
+									/* found it -- just append to the replaces list */
+									sync->data = pm_list_add(sync->data, dummy);
+								} else {
+									/* none found -- enter pkg into the final sync list */
+									sync = sync_new(PM_SYNC_TYPE_REPLACE, spkg, NULL);
+									if(sync == NULL) {
+										FREEPKG(dummy);
+										pm_errno = PM_ERR_MEMORY;
+										goto error;
+									}
+									sync->data = pm_list_add(sync->data, dummy);
+									trans->packages = pm_list_add(trans->packages, sync);
+								}
+								_alpm_log(PM_LOG_DEBUG, "%s-%s elected for upgrade (to be replaced by %s-%s)",
+								          lpkg->name, lpkg->version, spkg->name, spkg->version);
 							}
-							_alpm_log(PM_LOG_DEBUG, "%s-%s elected for upgrade (to be replaced by %s-%s)",
-							          lpkg->name, lpkg->version, spkg->name, spkg->version);
 						}
+						break;
 					}
 				}
 			}
@@ -288,19 +294,21 @@ int sync_addtarget(pmtrans_t *trans, pmdb_t *db_local, PMList *dbs_sync, char *n
 	if(local) {
 		cmp = alpm_pkg_vercmp(local->version, spkg->version);
 		if(cmp > 0) {
-			/* local version is newer - get confirmation first */
-			/* ORE
-			if(!yesno(":: %s-%s: local version is newer.  Upgrade anyway? [Y/n] ", lpkgname, lpkgver)) {
-			}*/
-			_alpm_log(PM_LOG_WARNING, "%s-%s: local version is newer -- skipping", local->name, local->version);
-			return(0);
+			/* local version is newer -- get confirmation before adding */
+			int resp = 0;
+			QUESTION(trans, PM_TRANS_CONV_LOCAL_NEWER, local, NULL, NULL, &resp);
+			if(!resp) {
+				_alpm_log(PM_LOG_WARNING, "%s-%s: local version is newer -- skipping", local->name, local->version);
+				return(0);
+			}
 		} else if(cmp == 0) {
-			/* versions are identical */
-			/* ORE
-			if(!yesno(":: %s-%s: is up to date.  Upgrade anyway? [Y/n] ", lpkgname, lpkgver)) {
-			}*/
-			_alpm_log(PM_LOG_WARNING, "%s-%s is up to date -- skipping", local->name, local->version);
-			return(0);
+			/* versions are identical -- get confirmation before adding */
+			int resp = 0;
+			QUESTION(trans, PM_TRANS_CONV_LOCAL_UPTODATE, local, NULL, NULL, &resp);
+			if(!resp) {
+				_alpm_log(PM_LOG_WARNING, "%s-%s is up to date -- skipping", local->name, local->version);
+				return(0);
+			}
 		}
 	}
 
@@ -353,7 +361,7 @@ int sync_prepare(pmtrans_t *trans, pmdb_t *db_local, PMList *dbs_sync, PMList **
 			pmsyncpkg_t *sync = i->data;
 			pmpkg_t *spkg = sync->pkg;
 			_alpm_log(PM_LOG_FLOW1, "resolving dependencies for package %s", spkg->name);
-			if(resolvedeps(db_local, dbs_sync, spkg, list, trail) == -1) {
+			if(resolvedeps(db_local, dbs_sync, spkg, list, trail, trans) == -1) {
 				/* pm_errno is set by resolvedeps */
 				goto error;
 			}
@@ -523,6 +531,7 @@ int sync_commit(pmtrans_t *trans, pmdb_t *db_local)
 	}
 	FREETRANS(tr);
 
+	fprintf(stderr, "HERE\n"); fflush(stdout);
 	/* install targets */
 	_alpm_log(PM_LOG_FLOW1, "installing packages");
 	tr = trans_new();
@@ -531,7 +540,7 @@ int sync_commit(pmtrans_t *trans, pmdb_t *db_local)
 		pm_errno = PM_ERR_XXX;
 		goto error;
 	}
-	if(trans_init(tr, PM_TRANS_TYPE_UPGRADE, trans->flags | PM_TRANS_FLAG_NODEPS, NULL) == -1) {
+	if(trans_init(tr, PM_TRANS_TYPE_UPGRADE, trans->flags | PM_TRANS_FLAG_NODEPS, NULL, NULL) == -1) {
 		_alpm_log(PM_LOG_ERROR, "could not initialize transaction");
 		pm_errno = PM_ERR_XXX;
 		goto error;
diff --git a/lib/libalpm/trans.c b/lib/libalpm/trans.c
index 43f134e0..12d35806 100644
--- a/lib/libalpm/trans.c
+++ b/lib/libalpm/trans.c
@@ -50,6 +50,7 @@ pmtrans_t *trans_new()
 	trans->type = 0;
 	trans->flags = 0;
 	trans->cb_event = NULL;
+	trans->cb_conv = NULL;
 	trans->state = STATE_IDLE;
 
 	return(trans);
@@ -77,7 +78,7 @@ void trans_free(pmtrans_t *trans)
 	free(trans);
 }
 
-int trans_init(pmtrans_t *trans, unsigned char type, unsigned char flags, alpm_trans_cb_event event)
+int trans_init(pmtrans_t *trans, unsigned char type, unsigned char flags, alpm_trans_cb_event event, alpm_trans_cb_conv conv)
 {
 	/* Sanity checks */
 	if(trans == NULL) {
@@ -91,6 +92,7 @@ int trans_init(pmtrans_t *trans, unsigned char type, unsigned char flags, alpm_t
 	trans->type = type;
 	trans->flags = flags;
 	trans->cb_event = event;
+	trans->cb_conv = conv;
 	trans->state = STATE_INITIALIZED;
 
 	return(0);
diff --git a/lib/libalpm/trans.h b/lib/libalpm/trans.h
index 8518e5aa..b9ca04a8 100644
--- a/lib/libalpm/trans.h
+++ b/lib/libalpm/trans.h
@@ -38,6 +38,7 @@ typedef struct __pmtrans_t {
 	PMList *packages;    /* PMList of (pmpkg_t *) or (pmsyncpkg_t *) */
 	PMList *skiplist;    /* PMList of (char *) */
 	alpm_trans_cb_event cb_event;
+	alpm_trans_cb_conv cb_conv;
 } pmtrans_t;
 
 #define FREETRANS(p) \
@@ -49,14 +50,20 @@ do { \
 } while (0)
 #define EVENT(t, e, d1, d2) \
 do { \
-	if((t) && (t)->cb_event) { \
+	if((t) && (t)->cb_conv) { \
 		(t)->cb_event(e, d1, d2); \
 	} \
 } while(0)
+#define QUESTION(t, e, d1, d2, d3, r) \
+do { \
+	if((t) && (t)->cb_event) { \
+		(t)->cb_conv(e, d1, d2, d3, r); \
+	} \
+} while(0)
 
 pmtrans_t *trans_new();
 void trans_free(pmtrans_t *trans);
-int trans_init(pmtrans_t *trans, unsigned char type, unsigned char flags, alpm_trans_cb_event event);
+int trans_init(pmtrans_t *trans, unsigned char type, unsigned char flags, alpm_trans_cb_event event, alpm_trans_cb_conv conv);
 int trans_sysupgrade(pmtrans_t *trans);
 int trans_addtarget(pmtrans_t *trans, char *target);
 int trans_prepare(pmtrans_t *trans, PMList **data);
diff --git a/lib/libalpm/util.c b/lib/libalpm/util.c
index 6b2b60a6..680c4095 100644
--- a/lib/libalpm/util.c
+++ b/lib/libalpm/util.c
@@ -376,7 +376,7 @@ int _alpm_runscriptlet(char *root, char *installfn, char *script, char *ver, cha
 			snprintf(cpath, PATH_MAX, "%s/chroot", dirs[i]);
 			if(!stat(cpath, &buf)) {
 				chrootbin = strdup(cpath);
-				_alpm_log(PM_LOG_DEBUG, "found chroot binary: %s", chrootbin);
+				_alpm_log(PM_LOG_FLOW2, "found chroot binary: %s", chrootbin);
 			}
 		}
 		if(chrootbin == NULL) {
@@ -421,11 +421,11 @@ int _alpm_runscriptlet(char *root, char *installfn, char *script, char *ver, cha
 
 	_alpm_log(PM_LOG_FLOW2, "executing %s script...", script);
 	if(oldver) {
-		snprintf(cmdline, PATH_MAX, "echo \"umask 0022; source %s %s %s %s\" | chroot %s /bin/sh",
-				scriptpath, script, ver, oldver, root);
+		snprintf(cmdline, PATH_MAX, "echo \"umask 0022; source %s %s %s %s\" | %s %s /bin/sh",
+				scriptpath, script, ver, oldver, chrootbin, root);
 	} else {
-		snprintf(cmdline, PATH_MAX, "echo \"umask 0022; source %s %s %s\" | chroot %s /bin/sh",
-				scriptpath, script, ver, root);
+		snprintf(cmdline, PATH_MAX, "echo \"umask 0022; source %s %s %s\" | %s %s /bin/sh",
+				scriptpath, script, ver, chrootbin, root);
 	}
 	_alpm_log(PM_LOG_DEBUG, "%s", cmdline);
 	system(cmdline);
diff --git a/src/pacman/add.c b/src/pacman/add.c
index d5fb73db..bf262b0e 100644
--- a/src/pacman/add.c
+++ b/src/pacman/add.c
@@ -59,7 +59,7 @@ int pacman_add(list_t *targets)
 	/* Step 1: create a new transaction
 	 */
 	if(alpm_trans_init((pmo_upgrade == 0) ? PM_TRANS_TYPE_ADD : PM_TRANS_TYPE_UPGRADE,
-	                   pmo_flags, cb_trans) == -1) {
+	                   pmo_flags, cb_trans_evt, cb_trans_conv) == -1) {
 		ERR(NL, "%s\n", alpm_strerror(pm_errno));
 		return(1);
 	}
diff --git a/src/pacman/pacman.c b/src/pacman/pacman.c
index eb5a8da8..983d8402 100644
--- a/src/pacman/pacman.c
+++ b/src/pacman/pacman.c
@@ -287,7 +287,7 @@ int pacman_deptest(list_t *targets)
 
 	/* we create a transaction to hold a dummy package to be able to use
 	 * deps checkings from alpm_trans_prepare() */
-	if(alpm_trans_init(PM_TRANS_TYPE_ADD, 0, NULL) == -1) {
+	if(alpm_trans_init(PM_TRANS_TYPE_ADD, 0, NULL, NULL) == -1) {
 		ERR(NL, "%s", alpm_strerror(pm_errno));
 		return(1);
 	}
diff --git a/src/pacman/remove.c b/src/pacman/remove.c
index 586ffac8..fd292151 100644
--- a/src/pacman/remove.c
+++ b/src/pacman/remove.c
@@ -73,7 +73,7 @@ int pacman_remove(list_t *targets)
 
 	/* Step 1: create a new transaction
 	 */
-	if(alpm_trans_init(PM_TRANS_TYPE_REMOVE, pmo_flags, cb_trans) == -1) {
+	if(alpm_trans_init(PM_TRANS_TYPE_REMOVE, pmo_flags, cb_trans_evt, cb_trans_conv) == -1) {
 		ERR(NL, "failed to init transaction (%s)\n", alpm_strerror(pm_errno));
 		goto error;
 	}
diff --git a/src/pacman/sync.c b/src/pacman/sync.c
index 39c5a0d5..0e6d77d9 100644
--- a/src/pacman/sync.c
+++ b/src/pacman/sync.c
@@ -424,7 +424,7 @@ int pacman_sync(list_t *targets)
 
 	/* Step 1: create a new transaction...
 	 */
-	if(alpm_trans_init(PM_TRANS_TYPE_SYNC, pmo_flags, cb_trans) == -1) {
+	if(alpm_trans_init(PM_TRANS_TYPE_SYNC, pmo_flags, cb_trans_evt, cb_trans_conv) == -1) {
 		ERR(NL, "failed to init transaction (%s)\n", alpm_strerror(pm_errno));
 		retval = 1;
 		goto cleanup;
diff --git a/src/pacman/trans.c b/src/pacman/trans.c
index 90341770..2840fca2 100644
--- a/src/pacman/trans.c
+++ b/src/pacman/trans.c
@@ -36,7 +36,7 @@
 
 /* Callback to handle transaction events
  */
-void cb_trans(unsigned char event, void *data1, void *data2)
+void cb_trans_evt(unsigned char event, void *data1, void *data2)
 {
 	char str[LOG_STR_LEN] = "";
 
@@ -93,4 +93,37 @@ void cb_trans(unsigned char event, void *data1, void *data2)
 	}
 }
 
+void cb_trans_conv(unsigned char event, void *data1, void *data2, void *data3, int *response)
+{
+	char str[LOG_STR_LEN] = "";
+
+	switch(event) {
+		case PM_TRANS_CONV_INSTALL_IGNOREPKG:
+			snprintf(str, LOG_STR_LEN, ":: %s requires %s, but it is in IgnorePkg.  Install anyway? [Y/n] ",
+					(char *)alpm_pkg_getinfo(data1, PM_PKG_NAME),
+					(char *)alpm_pkg_getinfo(data2, PM_PKG_NAME));
+			*response = yesno(str);
+		break;
+		case PM_TRANS_CONV_REPLACE_PKG:
+			snprintf(str, LOG_STR_LEN, ":: Replace %s with %s from \"%s\"? [Y/n] ",
+					(char *)alpm_pkg_getinfo(data1, PM_PKG_NAME),
+					(char *)alpm_pkg_getinfo(data2, PM_PKG_NAME),
+					(char *)data3);
+			*response = yesno(str);
+		break;
+		case PM_TRANS_CONV_LOCAL_NEWER:
+			snprintf(str, LOG_STR_LEN, ":: %s-%s: local version is newer. Upgrade anyway? [Y/n] ",
+					(char *)alpm_pkg_getinfo(data1, PM_PKG_NAME),
+					(char *)alpm_pkg_getinfo(data1, PM_PKG_VERSION));
+			*response = yesno(str);
+		break;
+		case PM_TRANS_CONV_LOCAL_UPTODATE:
+			snprintf(str, LOG_STR_LEN, ":: %s-%s: local version is up to date. Upgrade anyway? [Y/n] ",
+					(char *)alpm_pkg_getinfo(data1, PM_PKG_NAME),
+					(char *)alpm_pkg_getinfo(data1, PM_PKG_VERSION));
+			*response = yesno(str);
+		break;
+	}
+}
+
 /* vim: set ts=2 sw=2 noet: */
diff --git a/src/pacman/trans.h b/src/pacman/trans.h
index a1df6488..f98282cb 100644
--- a/src/pacman/trans.h
+++ b/src/pacman/trans.h
@@ -22,7 +22,10 @@
 #define _PM_TRANS_H
 
 /* callback to handle messages/notifications from pacman transactions */
-void cb_trans(unsigned char event, void *data1, void *data2);
+void cb_trans_evt(unsigned char event, void *data1, void *data2);
+
+/* callback to handle questions from pacman transactions (yes/no) */
+void cb_trans_conv(unsigned char event, void *data1, void *data2, void *data3, int *response);
 
 #endif /* _PM_TRANS_H */