From f4d8ff9598ed8d57bd3c73748b3077ccae4a8f88 Mon Sep 17 00:00:00 2001
From: sin <sin@2f30.org>
Date: Thu, 20 Nov 2014 17:38:31 +0000
Subject: [PATCH] Properly handle -F and -i

---
 grep.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/grep.c b/grep.c
index b2c41b7..1c28928 100644
--- a/grep.c
+++ b/grep.c
@@ -20,6 +20,7 @@ static int Hflag;
 static int eflag;
 static int fflag;
 static int hflag;
+static int iflag;
 static int sflag;
 static int vflag;
 static int xflag;
@@ -78,6 +79,7 @@ main(int argc, char *argv[])
 		break;
 	case 'i':
 		flags |= REG_ICASE;
+		iflag = 1;
 		break;
 	case 's':
 		sflag = 1;
@@ -197,10 +199,17 @@ grep(FILE *fp, const char *str)
 				if (regexec(&pnode->preg, buf, 0, NULL, 0) ^ vflag)
 					continue;
 			} else {
-				if (!xflag)
-					match = strstr(buf, pnode->pattern) ? Match : NoMatch;
-				else
-					match = strcmp(buf, pnode->pattern);
+				if (!xflag) {
+					if ((iflag ? strcasestr : strstr)(buf, pnode->pattern))
+						match = Match;
+					else
+						match = NoMatch;
+				} else {
+					if (!(iflag ? strcasecmp : strcmp)(buf, pnode->pattern))
+						match = Match;
+					else
+						match = NoMatch;
+				}
 				if (match ^ vflag)
 					continue;
 			}