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#pragma once
#include <inttypes.h>
#include <limits.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <shared/macro.h>
/* string handling functions and memory allocations */
/* ************************************************************************ */
#define streq(a, b) (strcmp((a), (b)) == 0)
#define strstartswith(a, b) (strncmp(a, b, strlen(b)) == 0)
char *strchr_replace(char *s, char c, char r);
void *memdup(const void *p, size_t n) __attribute__((nonnull(1)));
/* module-related functions */
/* ************************************************************************ */
#define KMOD_EXTENSION_UNCOMPRESSED ".ko"
int alias_normalize(const char *alias, char buf[static PATH_MAX], size_t *len) _must_check_ __attribute__((nonnull(1,2)));
int underscores(char *s) _must_check_;
char *modname_normalize(const char *modname, char buf[static PATH_MAX], size_t *len) __attribute__((nonnull(1, 2)));
char *path_to_modname(const char *path, char buf[static PATH_MAX], size_t *len) __attribute__((nonnull(2)));
bool path_ends_with_kmod_ext(const char *path, size_t len) __attribute__((nonnull(1)));
/* read-like and fread-like functions */
/* ************************************************************************ */
ssize_t read_str_safe(int fd, char *buf, size_t buflen) _must_check_ __attribute__((nonnull(2)));
ssize_t write_str_safe(int fd, const char *buf, size_t buflen) __attribute__((nonnull(2)));
int read_str_long(int fd, long *value, int base) _must_check_ __attribute__((nonnull(2)));
int read_str_ulong(int fd, unsigned long *value, int base) _must_check_ __attribute__((nonnull(2)));
char *freadline_wrapped(FILE *fp, unsigned int *linenum) __attribute__((nonnull(1)));
/* path handling functions */
/* ************************************************************************ */
bool path_is_absolute(const char *p) _must_check_ __attribute__((nonnull(1)));
char *path_make_absolute_cwd(const char *p) _must_check_ __attribute__((nonnull(1)));
int mkdir_p(const char *path, int len, mode_t mode);
int mkdir_parents(const char *path, mode_t mode);
unsigned long long stat_mstamp(const struct stat *st);
unsigned long long ts_usec(const struct timespec *ts);
/* endianess and alignments */
/* ************************************************************************ */
#define get_unaligned(ptr) \
({ \
struct __attribute__((packed)) { \
typeof(*(ptr)) __v; \
} *__p = (typeof(__p)) (ptr); \
__p->__v; \
})
#define put_unaligned(val, ptr) \
do { \
struct __attribute__((packed)) { \
typeof(*(ptr)) __v; \
} *__p = (typeof(__p)) (ptr); \
__p->__v = (val); \
} while(0)
static _always_inline_ unsigned int ALIGN_POWER2(unsigned int u)
{
return 1 << ((sizeof(u) * 8) - __builtin_clz(u - 1));
}
/* misc */
/* ************************************************************************ */
static inline void freep(void *p) {
free(*(void**) p);
}
#define _cleanup_free_ _cleanup_(freep)
static inline bool addu64_overflow(uint64_t a, uint64_t b, uint64_t *res)
{
#if (HAVE___BUILTIN_UADDL_OVERFLOW && HAVE___BUILTIN_UADDLL_OVERFLOW)
#if __SIZEOF_LONG__ == 8
return __builtin_uaddl_overflow(a, b, res);
#elif __SIZEOF_LONG_LONG__ == 8
return __builtin_uaddll_overflow(a, b, res);
#else
#error "sizeof(long long) != 8"
#endif
#endif
*res = a + b;
return UINT64_MAX - a < b;
}
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