|explain_lseek_or_die(3)||Library Functions Manual||explain_lseek_or_die(3)|
explain_lseek_or_die - reposition file offset and report errors
long long explain_lseek_or_die(int fildes, long long offset, int whence);
The explain_lseek_or_die function is used to call the lseek(2) system call. On failure an explanation will be printed to stderr, obtained from explain_lseek(3), and then the process terminates by calling exit(EXIT_FAILURE).
This function is intended to be used in a fashion similar to the following example:
long long result = explain_lseek_or_die(fildes, offset, whence);
- The fildes, exactly as to be passed to the lseek(2) system call.
- The offset, exactly as to be passed to the lseek(2) system call.
- The whence, exactly as to be passed to the lseek(2) system call.
- On successful, returns the resulting offset location as measured in bytes from the beginning of the file. On failure, prints an explanation and exits.
libexplain version 1.4
Copyright (C) 2008 Peter Miller