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llseek
Langue: en
Version: 2007-06-01 (MeeGo - 06/11/10)
Section: 2 (Appels système)
NAME
_llseek - reposition read/write file offsetSYNOPSIS
#include <sys/types.h> #include <unistd.h> int _llseek(unsigned int fd, unsigned long offset_high, unsigned long offset_low, loff_t *result, unsigned int whence);
DESCRIPTION
The _llseek() function repositions the offset of the open file associated with the file descriptor fd to (offset_high<<32) | offset_low bytes relative to the beginning of the file, the current position in the file, or the end of the file, depending on whether whence is SEEK_SET, SEEK_CUR, or SEEK_END, respectively. It returns the resulting file position in the argument result.RETURN VALUE
Upon successful completion, _llseek() returns 0. Otherwise, a value of -1 is returned and errno is set to indicate the error.ERRORS
- EBADF
- fd is not an open file descriptor.
- EFAULT
- Problem with copying results to user space.
- EINVAL
- whence is invalid.
CONFORMING TO
This function is Linux-specific, and should not be used in programs intended to be portable.NOTES
Glibc does not provide a wrapper for this system call; call it using syscall(2).SEE ALSO
lseek(2), lseek64(3)COLOPHON
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