explain_realpath_or_die(3) - Linux man page
Name
explain_realpath_or_die - return canonical pathname and report errors
Synopsis
#include <libexplain/realpath.h>
char *explain_realpath_or_die(const char *pathname, char *resolved_pathname);
char *explain_realpath_on_error(const char *pathname, char *resolved_pathname);
Description
The explain_realpath_or_die function is used to call the realpath(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_realpath(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_realpath_on_error function is used to call the realpath(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_realpath(3) function, but still returns to the caller.
- pathname
- The pathname, exactly as to be passed to the realpath(3) system call.
- resolved_pathname
- The resolved_pathname, exactly as to be passed to the realpath(3) system call.
Return Value
The explain_realpath_or_die function only returns on success, see realpath(3) for more information. On failure, prints an explanation and exits, it does not return.
The explain_realpath_on_error function always returns the value return by the wrapped realpath(3) system call.
Example
The explain_realpath_or_die function is intended to be used in a fashion similar to the following example:
-
char *result = explain_realpath_or_die(pathname, resolved_pathname);
See Also
realpath(3)
- return the canonicalized absolute pathname
- explain_realpath(3)
- explain realpath(3) errors
- exit(2)
terminate the calling process
Copyright
libexplain version 0.52
Copyright © 2011 Peter Miller