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#ifndef __COW_SYS_H__
#define __COW_SYS_H__
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
static inline void *cow_malloc(int size)
{
return(malloc(size));
}
static inline void cow_free(void *ptr)
{
free(ptr);
}
#define cow_printf printf
static inline char *cow_strdup(char *str)
{
return(strdup(str));
}
static inline int cow_seek_file(int fd, __u64 offset)
{
__u64 actual;
actual = lseek64(fd, offset, SEEK_SET);
if(actual != offset)
return(-errno);
return(0);
}
static inline int cow_file_size(char *file, unsigned long long *size_out)
{
struct stat64 buf;
if (stat64(file, &buf) == -1) {
cow_printf("Couldn't stat \"%s\" : errno = %d\n", file, errno);
return(-errno);
}
if(S_ISBLK(buf.st_mode)){
int fd, blocks;
if((fd = open(file, O_RDONLY)) < 0){
cow_printf("Couldn't open \"%s\", errno = %d\n", file,
errno);
return(-errno);
}
if(ioctl(fd, BLKGETSIZE, &blocks) < 0){
cow_printf("Couldn't get the block size of \"%s\", "
"errno = %d\n", file, errno);
close(fd);
return(-errno);
}
*size_out = ((long long) blocks) * 512;
close(fd);
return(0);
}
*size_out = buf.st_size;
return(0);
}
static inline int cow_write_file(int fd, void *buf, int size)
{
int ret = write(fd, buf, size);
if (ret == -1)
return(-errno);
return(ret);
}
#endif
/*
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/
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