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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:49:52 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:49:52 +0000 |
commit | 55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch) | |
tree | 33f869f55a1b149e9b7c2b7e201867ca5dd52992 /src/boot/efi/efi-string.h | |
parent | Initial commit. (diff) | |
download | systemd-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 '')
-rw-r--r-- | src/boot/efi/efi-string.h | 180 |
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 |