72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/* Random util functions, mainly taken from stdrusty.h */
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#ifndef _UPLOAD_ANALYSIS_UTILS_H
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#define _UPLOAD_ANALYSIS_UTILS_H
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#include <stdarg.h>
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#include <stdbool.h>
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#include <string.h>
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/* Is A == B ? */
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#define streq(a,b) (strcmp((a),(b)) == 0)
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/* Does A start with B ? */
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#define strstarts(a,b) (strncmp((a),(b),strlen(b)) == 0)
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/* Does A end in B ? */
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static inline bool strends(const char *a, const char *b)
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{
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if (strlen(a) < strlen(b))
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return false;
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return streq(a + strlen(a) - strlen(b), b);
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}
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#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
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#define ___stringify(x) #x
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#define __stringify(x) ___stringify(x)
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/* Convenient wrappers for malloc and realloc. Use them. */
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#define new(type) ((type *)malloc_nofail(sizeof(type)))
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#define new_array(type, num) realloc_array((type *)0, (num))
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#define realloc_array(ptr, num) ((__typeof__(ptr))_realloc_array((ptr), sizeof((*ptr)), (num)))
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void *malloc_nofail(size_t size);
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void *realloc_nofail(void *ptr, size_t size);
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void *_realloc_array(void *ptr, size_t size, size_t num);
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/* Avoid stupid sprintf-style */
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char *aprintf(const char *fmt, ...) __attribute__((format(printf,1,2)));
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char *aprintf_add(char *s, const char *fmt, ...)
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__attribute__((format(printf,2,3)));
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void logpv(const char *fmt, va_list arglist);
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void logp(const char *fmt, ...) __attribute__((format(printf,1,2)));
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void barf(const char *fmt, ...) __attribute__((noreturn, format(printf,1,2)));
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void barf_perror(const char *fmt, ...)
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__attribute__((noreturn, format(printf,1,2)));
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void *grab_input(int fd, unsigned long *size);
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extern int log_fd;
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/* from the Linux Kernel:
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* min()/max() macros that also do
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* strict type-checking.. See the
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* "unnecessary" pointer comparison.
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*/
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#define min(x,y) ({ \
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typeof(x) _x = (x); \
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typeof(y) _y = (y); \
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(void) (&_x == &_y); \
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_x < _y ? _x : _y; })
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#define max(x,y) ({ \
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typeof(x) _x = (x); \
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typeof(y) _y = (y); \
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(void) (&_x == &_y); \
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_x > _y ? _x : _y; })
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/* Delete (by memmove) elements of an array */
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#define delete_arr(p, len, off, num) \
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_delete_arr((p), (len), (off), (num), sizeof(*p))
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void _delete_arr(void *p, unsigned len, unsigned off, unsigned num, size_t s);
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#endif /* _UPLOAD_ANALYSIS_UTILS_H */
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