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include/fileeq.h
61 строка
2 KB
Tobias Stoeckmann
lib/fileeq: Check arithmetic in ul_fileeq_set_size
26 фев 2026, 22:41
26 фев 2026, 22:41
0e6b542
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/* * No copyright is claimed. This code is in the public domain; do with * it what you wish. */ #ifndef UTIL_LINUX_FILEEQ #define UTIL_LINUX_FILEEQ #include <stdlib.h> #include <stdint.h> #include <stdbool.h> #if defined(__linux__) && defined(HAVE_LINUX_IF_ALG_H) # define USE_FILEEQ_CRYPTOAPI 1 #endif /* Number of bytes from the beginning of the file we always * compare by memcmp() */ #define UL_FILEEQ_INTROSIZ 32 struct ul_fileeq_data { unsigned char intro[UL_FILEEQ_INTROSIZ]; unsigned char *blocks; size_t nblocks; size_t maxblocks; int fd; const char *name; bool is_eof; }; struct ul_fileeq { int fd_api; /* Crypto socket */ int fd_cip; /* Cipher handler */ size_t readsiz; uint64_t filesiz; uint64_t blocksmax; const struct ul_fileeq_method *method; /* UL_FILEEQ_MEMCMP buffers */ unsigned char *buf_a; unsigned char *buf_b; unsigned char *buf_last; }; extern int ul_fileeq_init(struct ul_fileeq *eq, const char *method); extern void ul_fileeq_deinit(struct ul_fileeq *eq); extern int ul_fileeq_data_associated(struct ul_fileeq_data *data); extern void ul_fileeq_data_close_file(struct ul_fileeq_data *data); extern void ul_fileeq_data_init(struct ul_fileeq_data *data); extern void ul_fileeq_data_deinit(struct ul_fileeq_data *data); extern void ul_fileeq_data_set_file(struct ul_fileeq_data *data, const char *name); extern bool ul_fileeq_set_size(struct ul_fileeq *eq, int64_t st_size, size_t readsiz, size_t memsiz); extern int ul_fileeq(struct ul_fileeq *eq, struct ul_fileeq_data *a, struct ul_fileeq_data *b); #endif /* UTIL_LINUX_FILEEQ */