bootstrap-initrd

commit: fa3c8dc0ab7411a1d9b1db3bd043c228b689aaa7
parent 5d0060926e2f20e59fc1687f7417669fec0f4c8f
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Fri,  3 May 2024 14:31:08 +0200

grep-stub.c: Handle case insensitive substring

Diffstat:
M
grep-stub.c
7
+++++--

1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/grep-stub.c b/grep-stub.c
@@ -3,6 +3,7 @@
 // SPDX-License-Identifier: MPL-2.0
 
 #define _POSIX_C_SOURCE 200809L
+#define _GNU_SOURCE // strcasestr
 
 #include <assert.h>
 #include <errno.h>
@@ -30,6 +31,8 @@ static regex_t *patterns_r   = NULL;
 static bool fixed_str = false, invert = false, count_only = false, opt_n = false;
 static bool multiple_files = false;
 
+static char *(*find_substring)(const char *, const char *) = &strstr;
+
 static int
 do_grep(FILE *stream, char *filename)
 {
@@ -50,8 +53,7 @@ do_grep(FILE *stream, char *filename)
 		{
 			for(struct char_list *pattern = patterns; pattern != NULL; pattern = pattern->next)
 			{
-				// FIXME: Case insensitive (strcasestr)
-				if(strstr(line, pattern->data) != NULL)
+				if(find_substring(line, pattern->data) != NULL)
 				{
 					found = true;
 					break;
@@ -178,6 +180,7 @@ main(int argc, char *argv[])
 			break;
 		case 'i':
 			regcomp_flags |= REG_ICASE;
+			find_substring = &strcasestr;
 			break;
 		case 'l':
 			// (standard input)