98 lines
3.1 KiB
C
98 lines
3.1 KiB
C
#ifndef _COMMON_H
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#define _COMMON_H
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#include <errno.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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/* enums */
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enum configurations_bitshift {
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C_BITSHIFT_CONFIRM = 0,
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C_BITSHIFT_CONTENTS,
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C_BITSHIFT_LINE_ENDINGS,
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C_BITSHIFT_PRINTABLE,
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C_BITSHIFT_CUSTOM_SEED
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};
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enum configurations {
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C_CONFIRM = 1 << C_BITSHIFT_CONFIRM,
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C_CONTENTS = 1 << C_BITSHIFT_CONTENTS,
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C_LINE_ENDINGS = 1 << C_BITSHIFT_LINE_ENDINGS,
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C_PRINTABLE = 1 << C_BITSHIFT_PRINTABLE,
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C_CUSTOM_SEED = 1 << C_BITSHIFT_CUSTOM_SEED
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};
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/* macros: procedures */
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#define FPRINTF_MACRO(stream, ...) do { \
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fflush(stdout); \
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fprintf(stream, __VA_ARGS__); \
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} while (0)
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#define PERROR_MACRO(s) do { \
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int errnum = errno; \
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char* err_msg = strerror(errnum); /* XXX: Thread race possible */ \
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fflush(stdout); \
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fprintf(stderr, "%s:%d: %s: %s\n", __FILE__, __LINE__, (s), err_msg); \
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} while (0)
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#define FATAL_ERROR_PRINT(...) do { \
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FPRINTF_MACRO(stderr, __VA_ARGS__); \
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putc('\n', stderr); \
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} while (0)
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#define FATAL_ERROR(...) do { \
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FATAL_ERROR_PRINT(__VA_ARGS__); \
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exit(EXIT_FAILURE); \
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} while (0)
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#define FATAL_ERROR_RET(...) do { \
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FATAL_ERROR_PRINT(__VA_ARGS__); \
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return EXIT_FAILURE; \
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} while (0)
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/* macros: definitions */
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#ifndef SIZE_T_C
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# if defined(UINT64_MAX) && SIZE_MAX == UINT64_MAX
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# define SIZE_T_C(x) UINT64_C(x)
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# elif defined(UINT32_MAX) && SIZE_MAX == UINT32_MAX
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# define SIZE_T_C(x) UINT32_C(x)
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# else
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# define SIZE_T_C(x) ((size_t) x)
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# endif
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#endif
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#ifndef SIZE_MAX
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# define SIZE_MAX (~SIZE_T_C(0))
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#endif
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#define STR_YN_YES "yes"
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#define STR_YN_NO "no"
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#ifdef HAVE_NO_FSEEKO_FTELLO
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# define FSEEK_MACRO fseek
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# define FTELL_MACRO ftell
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typedef long file_offset_t;
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# define FILE_OFFSET_C(x) ((x)##L)
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#else
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# define FSEEK_MACRO fseeko
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# define FTELL_MACRO ftello
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typedef off_t file_offset_t;
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# define FILE_OFFSET_C(x) ((off_t) x)
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#endif
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/* macros: lambdas */
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#define STRINGIZE(x) #x
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#define INT2STR(x) STRINGIZE(x)
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#define YES_NO(x) ((x) ? STR_YN_YES : STR_YN_NO)
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#define READ_CONFIG(x) (config & (x))
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#define SET_CONFIG(x) config |= (x)
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#define CLEAR_CONFIG(x) config &= ~(x)
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#define LOOP_ACTION_CONFIG(f, x) \
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f(x); \
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continue
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#endif /* _COMMON_H */
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