Index: contrib/netbsd-tests/usr.bin/grep/t_grep.sh
===================================================================
--- contrib/netbsd-tests/usr.bin/grep/t_grep.sh
+++ contrib/netbsd-tests/usr.bin/grep/t_grep.sh
@@ -214,6 +214,32 @@
 	atf_check -o file:"$(atf_get_srcdir)/d_zgrep.out" zgrep -h line d_input.gz
 }
 
+atf_test_case zgrep_combined_flags
+zgrep_combined_flags_head()
+{
+	atf_set "descr" "Checks for zgrep wrapper problems with combined flags (PR 247126)"
+}
+zgrep_combined_flags_body()
+{
+	echo 'foo bar' > test
+
+	atf_check -o inline:"foo bar\n" zgrep -we foo test
+}
+
+atf_test_case zgrep_fflag
+zgrep_fflag_head()
+{
+	atf_set "descr" "Checks for zgrep wrapper problems with -f FILE (PR 247126)"
+}
+zgrep_fflag_body()
+{
+	echo foo > pattern
+	echo foobar > test
+
+	# Avoid hang on reading from stdin in the failure case
+	atf_check -o inline:"foobar\n" zgrep -f pattern test </dev/null
+}
+
 atf_test_case nonexistent
 nonexistent_head()
 {
@@ -826,6 +852,8 @@
 	atf_add_test_case file_exp
 	atf_add_test_case egrep
 	atf_add_test_case zgrep
+	atf_add_test_case zgrep_combined_flags
+	atf_add_test_case zgrep_fflag
 	atf_add_test_case nonexistent
 	atf_add_test_case context2
 # Begin FreeBSD
Index: usr.bin/grep/zgrep.sh
===================================================================
--- usr.bin/grep/zgrep.sh
+++ usr.bin/grep/zgrep.sh
@@ -75,18 +75,26 @@
 do
     case $1 in
     # from GNU grep-2.5.1 -- keep in sync!
-	-[ABCDXdefm])
+	--)
+	    shift
+	    endofopts=1
+	    ;;
+	--*)
+	    grep_args="${grep_args} $1"
+	    shift
+	    ;;
+	-*[ABCDXdefm])
 	    if [ $# -lt 2 ]
 		then
 		echo "${prg}: missing argument for $1 flag" >&2
 		exit 1
 	    fi
 	    case $1 in
-		-e)
-		    pattern="$2"
+		-*[ef])
+		    # -e: the pattern is the next argument
+		    # -f: the pattern(s) is/are in a file
+		    pattern=""
 		    pattern_found=1
-		    shift 2
-		    break
 		    ;;
 		*)
 		    ;;
@@ -94,10 +102,6 @@
 	    grep_args="${grep_args} $1 $2"
 	    shift 2
 	    ;;
-	--)
-	    shift
-	    endofopts=1
-	    ;;
 	-)
 	    hyphen=1
 	    shift
@@ -143,15 +147,24 @@
 if [ $# -lt 1 ]
 then
     # ... on stdin
-    ${cattool} ${catargs} - | ${grep} ${grep_args} -- "${pattern}" - || ret=$?
+    if [ -n "${pattern}" ]; then
+	${cattool} ${catargs} - | ${grep} ${grep_args} -- "${pattern}" - || ret=$?
+    else
+	${cattool} ${catargs} - | ${grep} ${grep_args} -- - || ret=$?
+    fi
 else
     # ... on all files given on the command line
     if [ ${silent} -lt 1 -a $# -gt 1 ]; then
 	grep_args="-H ${grep_args}"
     fi
     for file; do
-	${cattool} ${catargs} -- "${file}" |
-	    ${grep} --label="${file}" ${grep_args} -- "${pattern}" - || ret=$?
+	if [ -n "${pattern}" ]; then
+	    ${cattool} ${catargs} -- "${file}" |
+		${grep} --label="${file}" ${grep_args} -- "${pattern}" - || ret=$?
+	else
+	    ${cattool} ${catargs} -- "${file}" |
+		${grep} --label="${file}" ${grep_args} -- - || ret=$?
+	fi
     done
 fi