diff -ur pacman-4.2.0.old/src/pacman/callback.c pacman-4.2.0/src/pacman/callback.c
--- pacman-4.2.0.old/src/pacman/callback.c	2014-09-30 09:02:37.000000000 +0530
+++ pacman-4.2.0/src/pacman/callback.c	2014-12-29 17:43:25.580454965 +0530
@@ -369,7 +369,7 @@
 			{
 				alpm_question_install_ignorepkg_t *q = &question->install_ignorepkg;
 				if(!config->op_s_downloadonly) {
-					q->install = yesno(_("%s is in IgnorePkg/IgnoreGroup. Install anyway?"),
+					q->install = yesno(1, 0, _("%s is in IgnorePkg/IgnoreGroup. Install anyway?"),
 							alpm_pkg_get_name(q->pkg));
 				} else {
 					q->install = 1;
@@ -379,7 +379,7 @@
 		case ALPM_QUESTION_REPLACE_PKG:
 			{
 				alpm_question_replace_t *q = &question->replace;
-				q->replace = yesno(_("Replace %s with %s/%s?"),
+				q->replace = yesno(1, 1, _("Replace %s with %s/%s?"),
 						alpm_pkg_get_name(q->oldpkg),
 						alpm_db_get_name(q->newdb),
 						alpm_pkg_get_name(q->newpkg));
@@ -391,12 +391,12 @@
 				/* print conflict only if it contains new information */
 				if(strcmp(q->conflict->package1, q->conflict->reason->name) == 0
 						|| strcmp(q->conflict->package2, q->conflict->reason->name) == 0) {
-					q->remove = noyes(_("%s and %s are in conflict. Remove %s?"),
+					q->remove = yesno(0, 0, _("%s and %s are in conflict. Remove %s?"),
 							q->conflict->package1,
 							q->conflict->package2,
 							q->conflict->package2);
 				} else {
-					q->remove = noyes(_("%s and %s are in conflict (%s). Remove %s?"),
+					q->remove = yesno(0, 0, _("%s and %s are in conflict (%s). Remove %s?"),
 							q->conflict->package1,
 							q->conflict->package2,
 							q->conflict->reason->name,
@@ -420,7 +420,7 @@
 							count));
 				list_display("     ", namelist, getcols());
 				printf("\n");
-				q->skip = noyes(_n(
+				q->skip = yesno(0, 0, _n(
 							"Do you want to skip the above package for this upgrade?",
 							"Do you want to skip the above packages for this upgrade?",
 							count));
@@ -442,7 +442,7 @@
 		case ALPM_QUESTION_CORRUPTED_PKG:
 			{
 				alpm_question_corrupted_t *q = &question->corrupted;
-				q->remove = yesno(_("File %s is corrupted (%s).\n"
+				q->remove = yesno(1, 0, _("File %s is corrupted (%s).\n"
 							"Do you want to delete it?"),
 						q->filepath,
 						alpm_strerror(q->reason));
@@ -456,10 +456,10 @@
 				strftime(created, 12, "%Y-%m-%d", localtime(&time));
 
 				if(q->key->revoked) {
-					q->import = yesno(_("Import PGP key %d%c/%s, \"%s\", created: %s (revoked)?"),
+					q->import = yesno(1, 1, _("Import PGP key %d%c/%s, \"%s\", created: %s (revoked)?"),
 							q->key->length, q->key->pubkey_algo, q->key->fingerprint, q->key->uid, created);
 				} else {
-					q->import = yesno(_("Import PGP key %d%c/%s, \"%s\", created: %s?"),
+					q->import = yesno(1, 1, _("Import PGP key %d%c/%s, \"%s\", created: %s?"),
 							q->key->length, q->key->pubkey_algo, q->key->fingerprint, q->key->uid, created);
 				}
 			}
diff -ur pacman-4.2.0.old/src/pacman/conf.c pacman-4.2.0/src/pacman/conf.c
--- pacman-4.2.0.old/src/pacman/conf.c	2014-12-19 09:18:00.000000000 +0530
+++ pacman-4.2.0/src/pacman/conf.c	2014-12-29 17:43:25.580454965 +0530
@@ -101,6 +101,7 @@
 	newconfig->op = PM_OP_MAIN;
 	newconfig->logmask = ALPM_LOG_ERROR | ALPM_LOG_WARNING;
 	newconfig->configfile = strdup(CONFFILE);
+	newconfig->default_answer = PM_DEFAULT_ANSWER_SMART;
 	newconfig->deltaratio = 0.0;
 	if(alpm_capabilities() & ALPM_CAPABILITY_SIGNATURES) {
 		newconfig->siglevel = ALPM_SIG_PACKAGE | ALPM_SIG_PACKAGE_OPTIONAL |
@@ -519,6 +520,23 @@
 			if(!config->arch) {
 				config_set_arch(value);
 			}
+		} else if(strcmp(key, "DefaultAnswer") == 0) {
+			if (strncasecmp(value, "smart", 5) == 0) {
+				config->default_answer = PM_DEFAULT_ANSWER_SMART;
+			}
+			else if(strncasecmp(value, "safe", 4) == 0) {
+				config->default_answer = PM_DEFAULT_ANSWER_SAFER;
+			}
+			else if(strcasecmp(value, "nodefault") == 0) {
+				config->default_answer = PM_DEFAULT_ANSWER_NODEFAULT;
+			}
+			else {
+				pm_printf(ALPM_LOG_ERROR,
+					_("config file %s, line %d: invalid value for '%s' : '%s'\n"),
+					file, linenum, "DefaultAnswer", value);
+				return 1;
+			}
+			pm_printf(ALPM_LOG_DEBUG, "config: defaultanswer = %s\n", value);
 		} else if(strcmp(key, "UseDelta") == 0) {
 			double ratio;
 			char *endptr;
diff -ur pacman-4.2.0.old/src/pacman/conf.h pacman-4.2.0/src/pacman/conf.h
--- pacman-4.2.0.old/src/pacman/conf.h	2014-10-14 06:14:20.000000000 +0530
+++ pacman-4.2.0/src/pacman/conf.h	2014-12-29 17:43:25.580454965 +0530
@@ -47,6 +47,7 @@
 	unsigned short checkspace;
 	unsigned short usesyslog;
 	unsigned short color;
+	unsigned short default_answer; /* see enum below */
 	double deltaratio;
 	char *arch;
 	char *print_format;
@@ -201,6 +202,12 @@
 	PM_COLOR_ON
 };
 
+enum {
+	PM_DEFAULT_ANSWER_SMART = 0,
+	PM_DEFAULT_ANSWER_SAFER,     /* Use safer (conservative) defaults */
+	PM_DEFAULT_ANSWER_NODEFAULT  /* Neither 'yes' nor 'no' is default */
+};
+
 /* global config variable */
 extern config_t *config;
 
diff -ur pacman-4.2.0.old/src/pacman/remove.c pacman-4.2.0/src/pacman/remove.c
--- pacman-4.2.0.old/src/pacman/remove.c	2014-09-16 10:25:59.000000000 +0530
+++ pacman-4.2.0/src/pacman/remove.c	2014-12-29 17:43:25.580454965 +0530
@@ -145,7 +145,7 @@
 			holdpkg = 1;
 		}
 	}
-	if(holdpkg && (noyes(_("HoldPkg was found in target list. Do you want to continue?")) == 0)) {
+	if(holdpkg && (yesno(0, 0, _("HoldPkg was found in target list. Do you want to continue?")) == 0)) {
 		retval = 1;
 		goto cleanup;
 	}
@@ -165,7 +165,7 @@
 	/* print targets and ask user confirmation */
 	display_targets();
 	printf("\n");
-	if(yesno(_("Do you want to remove these packages?")) == 0) {
+	if(yesno(1, 0, _("Do you want to remove these packages?")) == 0) {
 		retval = 1;
 		goto cleanup;
 	}
diff -ur pacman-4.2.0.old/src/pacman/sync.c pacman-4.2.0/src/pacman/sync.c
--- pacman-4.2.0.old/src/pacman/sync.c	2014-12-19 09:18:00.000000000 +0530
+++ pacman-4.2.0/src/pacman/sync.c	2014-12-29 17:43:25.580454965 +0530
@@ -145,7 +145,7 @@
 
 	dbpath = alpm_option_get_dbpath(config->handle);
 	printf(_("Database directory: %s\n"), dbpath);
-	if(!yesno(_("Do you want to remove unused repositories?"))) {
+	if(!yesno(1, 0, _("Do you want to remove unused repositories?"))) {
 		return 0;
 	}
 	printf(_("removing unused sync repositories...\n"));
@@ -196,13 +196,13 @@
 		printf(_("Cache directory: %s\n"), (const char *)i->data);
 
 		if(level == 1) {
-			if(!yesno(_("Do you want to remove all other packages from cache?"))) {
+			if(!yesno(1, 0, _("Do you want to remove all other packages from cache?"))) {
 				printf("\n");
 				continue;
 			}
 			printf(_("removing old packages from cache...\n"));
 		} else {
-			if(!noyes(_("Do you want to remove ALL files from cache?"))) {
+			if(!yesno(0, 0, _("Do you want to remove ALL files from cache?"))) {
 				printf("\n");
 				continue;
 			}
@@ -822,9 +822,9 @@
 
 	int confirm;
 	if(config->op_s_downloadonly) {
-		confirm = yesno(_("Proceed with download?"));
+		confirm = yesno(1, 0, _("Proceed with download?"));
 	} else {
-		confirm = yesno(_("Proceed with installation?"));
+		confirm = yesno(1, 0, _("Proceed with installation?"));
 	}
 	if(!confirm) {
 		retval = 1;
diff -ur pacman-4.2.0.old/src/pacman/util.c pacman-4.2.0/src/pacman/util.c
--- pacman-4.2.0.old/src/pacman/util.c	2014-10-01 17:23:10.000000000 +0530
+++ pacman-4.2.0/src/pacman/util.c	2014-12-29 17:43:25.583788392 +0530
@@ -1498,6 +1498,7 @@
 	char response[32];
 	FILE *stream;
 	int fd_in = fileno(stdin);
+	const char *yesnostr = "[y/n]";
 
 	if(config->noconfirm) {
 		stream = stdout;
@@ -1513,11 +1514,10 @@
 	fputs(config->colstr.colon, stream);
 	vfprintf(stream, format, args);
 
-	if(preset) {
-		fprintf(stream, " %s ", _("[Y/n]"));
-	} else {
-		fprintf(stream, " %s ", _("[y/N]"));
+	if (config->noconfirm || config->default_answer != PM_DEFAULT_ANSWER_NODEFAULT) {
+		yesnostr = (preset ? "[Y/n]" : "[y/N]");
 	}
+	fprintf(stream, " %s ", _(yesnostr));
 
 	fputs(config->colstr.nocolor, stream);
 	fflush(stream);
@@ -1529,9 +1529,9 @@
 
 	flush_term_input(fd_in);
 
-	if(safe_fgets(response, sizeof(response), stdin)) {
+	while(safe_fgets(response, sizeof(response), stdin)) {
 		size_t len = strtrim(response);
-		if(len == 0) {
+		if(len == 0 && config->default_answer != PM_DEFAULT_ANSWER_NODEFAULT) {
 			return preset;
 		}
 
@@ -1546,29 +1546,26 @@
 		} else if(strcasecmp(response, _("N")) == 0 || strcasecmp(response, _("NO")) == 0) {
 			return 0;
 		}
+		else {
+			fputs(config->colstr.colon, stream);
+			fprintf(stream, "%s %s ", _("You must specify Yes or No"), _(yesnostr));
+			fputs(config->colstr.nocolor, stream);
+			fflush(stream);
+		}
 	}
 	return 0;
 }
 
-int yesno(const char *format, ...)
-{
-	int ret;
-	va_list args;
-
-	va_start(args, format);
-	ret = question(1, format, args);
-	va_end(args);
-
-	return ret;
-}
-
-int noyes(const char *format, ...)
+int yesno(short preset, short safepreset, const char *format, ...)
 {
 	int ret;
 	va_list args;
 
+	if(!config->noconfirm && config->default_answer == PM_DEFAULT_ANSWER_SAFER) {
+		preset = safepreset;
+	}
 	va_start(args, format);
-	ret = question(0, format, args);
+	ret = question(preset ? 1 : 0, format, args);
 	va_end(args);
 
 	return ret;
diff -ur pacman-4.2.0.old/src/pacman/util.h pacman-4.2.0/src/pacman/util.h
--- pacman-4.2.0.old/src/pacman/util.h	2014-09-16 10:25:59.000000000 +0530
+++ pacman-4.2.0/src/pacman/util.h	2014-12-29 17:43:25.583788392 +0530
@@ -73,8 +73,7 @@
 int select_question(int count);
 int multiselect_question(char *array, int count);
 int colon_printf(const char *format, ...) __attribute__((format(printf, 1, 2)));
-int yesno(const char *format, ...) __attribute__((format(printf, 1, 2)));
-int noyes(const char *format, ...) __attribute__((format(printf, 1, 2)));
+int yesno(short preset, short safepreset, const char *format, ...) __attribute__((format(printf, 3, 4)));
 
 int pm_printf(alpm_loglevel_t level, const char *format, ...) __attribute__((format(printf,2,3)));
 int pm_asprintf(char **string, const char *format, ...) __attribute__((format(printf,2,3)));