systemd/0690-efi-string-Add-startswith8.patch
Jan Macku bed495948c systemd-252-28
Resolves: RHEL-1086,RHEL-16952
2024-02-20 16:13:49 +01:00

80 lines
2.8 KiB
Diff

From 3684d9be497c5cb5164435238b970931c93b41e6 Mon Sep 17 00:00:00 2001
From: Daan De Meyer <daan.j.demeyer@gmail.com>
Date: Mon, 30 Jan 2023 16:25:23 +0100
Subject: [PATCH] efi-string: Add startswith8()
startswith() from string-util-fundamental.h is defined for sd_char
which is char16_t, so let's add an implementation for char as well.
(cherry picked from commit ad36d31ea578622883c3b5297c971374096a504a)
Related: RHEL-16952
---
src/boot/efi/efi-string.c | 15 +++++++++++++++
src/boot/efi/efi-string.h | 2 ++
src/boot/efi/test-efi-string.c | 12 ++++++++++++
3 files changed, 29 insertions(+)
diff --git a/src/boot/efi/efi-string.c b/src/boot/efi/efi-string.c
index cf0d71e986..6b84af69e6 100644
--- a/src/boot/efi/efi-string.c
+++ b/src/boot/efi/efi-string.c
@@ -216,6 +216,21 @@ char16_t *xstrn8_to_16(const char *str8, size_t n) {
return str16;
}
+char *startswith8(const char *s, const char *prefix) {
+ size_t l;
+
+ assert(prefix);
+
+ if (!s)
+ return NULL;
+
+ l = strlen8(prefix);
+ if (!strneq8(s, prefix, l))
+ return NULL;
+
+ return (char*) s + l;
+}
+
static bool efi_fnmatch_prefix(const char16_t *p, const char16_t *h, const char16_t **ret_p, const char16_t **ret_h) {
assert(p);
assert(h);
diff --git a/src/boot/efi/efi-string.h b/src/boot/efi/efi-string.h
index 2a28db3593..477229bf60 100644
--- a/src/boot/efi/efi-string.h
+++ b/src/boot/efi/efi-string.h
@@ -105,6 +105,8 @@ static inline char16_t *xstr8_to_16(const char *str8) {
return xstrn8_to_16(str8, strlen8(str8));
}
+char *startswith8(const char *s, const char *prefix);
+
bool efi_fnmatch(const char16_t *pattern, const char16_t *haystack);
bool parse_number8(const char *s, uint64_t *ret_u, const char **ret_tail);
diff --git a/src/boot/efi/test-efi-string.c b/src/boot/efi/test-efi-string.c
index c7e42c7b94..be7f8f9b1c 100644
--- a/src/boot/efi/test-efi-string.c
+++ b/src/boot/efi/test-efi-string.c
@@ -355,6 +355,18 @@ TEST(xstrn8_to_16) {
free(s);
}
+TEST(startswith8) {
+ assert_se(streq8(startswith8("", ""), ""));
+ assert_se(streq8(startswith8("x", ""), "x"));
+ assert_se(!startswith8("", "x"));
+ assert_se(!startswith8("", "xxxxxxxx"));
+ assert_se(streq8(startswith8("xxx", "x"), "xx"));
+ assert_se(streq8(startswith8("xxx", "xx"), "x"));
+ assert_se(streq8(startswith8("xxx", "xxx"), ""));
+ assert_se(!startswith8("xxx", "xxxx"));
+ assert_se(!startswith8(NULL, ""));
+}
+
#define TEST_FNMATCH_ONE(pattern, haystack, expect) \
({ \
assert_se(fnmatch(pattern, haystack, 0) == (expect ? 0 : FNM_NOMATCH)); \