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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
commit55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch)
tree33f869f55a1b149e9b7c2b7e201867ca5dd52992 /src/boot/efi/efi-string.h
parentInitial commit. (diff)
downloadsystemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz
systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/boot/efi/efi-string.h')
-rw-r--r--src/boot/efi/efi-string.h180
1 files changed, 180 insertions, 0 deletions
diff --git a/src/boot/efi/efi-string.h b/src/boot/efi/efi-string.h
new file mode 100644
index 0000000..9ac919f
--- /dev/null
+++ b/src/boot/efi/efi-string.h
@@ -0,0 +1,180 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include "efi.h"
+#include "macro-fundamental.h"
+
+size_t strnlen8(const char *s, size_t n);
+size_t strnlen16(const char16_t *s, size_t n);
+
+static inline size_t strlen8(const char *s) {
+ return strnlen8(s, SIZE_MAX);
+}
+
+static inline size_t strlen16(const char16_t *s) {
+ return strnlen16(s, SIZE_MAX);
+}
+
+static inline size_t strsize8(const char *s) {
+ return s ? (strlen8(s) + 1) * sizeof(*s) : 0;
+}
+
+static inline size_t strsize16(const char16_t *s) {
+ return s ? (strlen16(s) + 1) * sizeof(*s) : 0;
+}
+
+void strtolower8(char *s);
+void strtolower16(char16_t *s);
+
+int strncmp8(const char *s1, const char *s2, size_t n);
+int strncmp16(const char16_t *s1, const char16_t *s2, size_t n);
+int strncasecmp8(const char *s1, const char *s2, size_t n);
+int strncasecmp16(const char16_t *s1, const char16_t *s2, size_t n);
+
+static inline int strcmp8(const char *s1, const char *s2) {
+ return strncmp8(s1, s2, SIZE_MAX);
+}
+
+static inline int strcmp16(const char16_t *s1, const char16_t *s2) {
+ return strncmp16(s1, s2, SIZE_MAX);
+}
+
+static inline int strcasecmp8(const char *s1, const char *s2) {
+ return strncasecmp8(s1, s2, SIZE_MAX);
+}
+
+static inline int strcasecmp16(const char16_t *s1, const char16_t *s2) {
+ return strncasecmp16(s1, s2, SIZE_MAX);
+}
+
+static inline bool strneq8(const char *s1, const char *s2, size_t n) {
+ return strncmp8(s1, s2, n) == 0;
+}
+
+static inline bool strneq16(const char16_t *s1, const char16_t *s2, size_t n) {
+ return strncmp16(s1, s2, n) == 0;
+}
+
+static inline bool streq8(const char *s1, const char *s2) {
+ return strcmp8(s1, s2) == 0;
+}
+
+static inline bool streq16(const char16_t *s1, const char16_t *s2) {
+ return strcmp16(s1, s2) == 0;
+}
+
+static inline int strncaseeq8(const char *s1, const char *s2, size_t n) {
+ return strncasecmp8(s1, s2, n) == 0;
+}
+
+static inline int strncaseeq16(const char16_t *s1, const char16_t *s2, size_t n) {
+ return strncasecmp16(s1, s2, n) == 0;
+}
+
+static inline bool strcaseeq8(const char *s1, const char *s2) {
+ return strcasecmp8(s1, s2) == 0;
+}
+
+static inline bool strcaseeq16(const char16_t *s1, const char16_t *s2) {
+ return strcasecmp16(s1, s2) == 0;
+}
+
+char *strcpy8(char * restrict dest, const char * restrict src);
+char16_t *strcpy16(char16_t * restrict dest, const char16_t * restrict src);
+
+char *strchr8(const char *s, char c);
+char16_t *strchr16(const char16_t *s, char16_t c);
+
+char *xstrndup8(const char *s, size_t n);
+char16_t *xstrndup16(const char16_t *s, size_t n);
+
+static inline char *xstrdup8(const char *s) {
+ return xstrndup8(s, SIZE_MAX);
+}
+
+static inline char16_t *xstrdup16(const char16_t *s) {
+ return xstrndup16(s, SIZE_MAX);
+}
+
+char16_t *xstrn8_to_16(const char *str8, size_t n);
+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);
+bool parse_number16(const char16_t *s, uint64_t *ret_u, const char16_t **ret_tail);
+
+bool parse_boolean(const char *v, bool *ret);
+
+char *line_get_key_value(char *s, const char *sep, size_t *pos, char **ret_key, char **ret_value);
+
+char16_t *hexdump(const void *data, size_t size);
+
+#ifdef __clang__
+# define _gnu_printf_(a, b) _printf_(a, b)
+#else
+# define _gnu_printf_(a, b) __attribute__((format(gnu_printf, a, b)))
+#endif
+
+_gnu_printf_(2, 3) void printf_status(EFI_STATUS status, const char *format, ...);
+_gnu_printf_(2, 0) void vprintf_status(EFI_STATUS status, const char *format, va_list ap);
+_gnu_printf_(2, 3) _warn_unused_result_ char16_t *xasprintf_status(EFI_STATUS status, const char *format, ...);
+_gnu_printf_(2, 0) _warn_unused_result_ char16_t *xvasprintf_status(EFI_STATUS status, const char *format, va_list ap);
+
+#if SD_BOOT
+# define printf(...) printf_status(EFI_SUCCESS, __VA_ARGS__)
+# define xasprintf(...) xasprintf_status(EFI_SUCCESS, __VA_ARGS__)
+
+/* inttypes.h is provided by libc instead of the compiler and is not supposed to be used in freestanding
+ * environments. We could use clang __*_FMT*__ constants for this, bug gcc does not have them. :( */
+
+# if defined(__ILP32__) || defined(__arm__) || defined(__i386__)
+# define PRI64_PREFIX "ll"
+# elif defined(__LP64__)
+# define PRI64_PREFIX "l"
+# elif defined(__LLP64__) || (__SIZEOF_LONG__ == 4 && __SIZEOF_POINTER__ == 8)
+# define PRI64_PREFIX "ll"
+# else
+# error Unknown 64-bit data model
+# endif
+
+# define PRIi32 "i"
+# define PRIu32 "u"
+# define PRIx32 "x"
+# define PRIX32 "X"
+# define PRIiPTR "zi"
+# define PRIuPTR "zu"
+# define PRIxPTR "zx"
+# define PRIXPTR "zX"
+# define PRIi64 PRI64_PREFIX "i"
+# define PRIu64 PRI64_PREFIX "u"
+# define PRIx64 PRI64_PREFIX "x"
+# define PRIX64 PRI64_PREFIX "X"
+
+/* The compiler normally has knowledge about standard functions such as memcmp, but this is not the case when
+ * compiling with -ffreestanding. By referring to builtins, the compiler can check arguments and do
+ * optimizations again. Note that we still need to provide implementations as the compiler is free to not
+ * inline its own implementation and instead issue a library call. */
+# define memchr __builtin_memchr
+# define memcmp __builtin_memcmp
+# define memcpy __builtin_memcpy
+# define memset __builtin_memset
+
+static inline void *mempcpy(void * restrict dest, const void * restrict src, size_t n) {
+ if (!dest || !src || n == 0)
+ return dest;
+ memcpy(dest, src, n);
+ return (uint8_t *) dest + n;
+}
+
+#else
+/* For unit testing. */
+void *efi_memchr(const void *p, int c, size_t n);
+int efi_memcmp(const void *p1, const void *p2, size_t n);
+void *efi_memcpy(void * restrict dest, const void * restrict src, size_t n);
+void *efi_memset(void *p, int c, size_t n);
+#endif