explain_fprintf_or_die(3) [debian man page]

explain_fprintf_or_die(3)				     Library Functions Manual					 explain_fprintf_or_die(3)

NAME

       explain_fprintf_or_die - formatted output conversion and report errors

SYNOPSIS

       #include <libexplain/fprintf.h>
       int explain_fprintf_or_die(FILE *fp, const char *format, ...);
       int explain_fprintf_on_error(FILE *fp, const char *format, ...);

DESCRIPTION

       The  explain_fprintf_or_die  function  is  used	to  call  the fprintf(3) system call. On failure an explanation will be printed to stderr,
       obtained from the explain_fprintf(3) function, and then the process terminates by calling exit(EXIT_FAILURE).

       The explain_fprintf_on_error function is used to call the fprintf(3) system call. On failure an explanation  will  be  printed  to  stderr,
       obtained from the explain_fprintf(3) function, but still returns to the caller.

       fp      The fp, exactly as to be passed to the fprintf(3) system call.

       format  The format, exactly as to be passed to the fprintf(3) system call.

RETURN VALUE

       The  explain_fprintf_or_die  function  only  returns on success, see fprintf(3) for more information. On failure, prints an explanation and
       exits, it does not return.

       The explain_fprintf_on_error function always returns the value return by the wrapped fprintf(3) system call.

EXAMPLE

       The explain_fprintf_or_die function is intended to be used in a fashion similar to the following example:
	      int result = explain_fprintf_or_die(fp, format, ...);

SEE ALSO

       fprintf(3)
	       formatted output conversion

       explain_fprintf(3)
	       explain fprintf(3) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 0.52
       Copyright (C) 2010 Peter Miller

															 explain_fprintf_or_die(3)

explain_readlink_or_die(3)				     Library Functions Manual					explain_readlink_or_die(3)

NAME

       explain_readlink_or_die - read value of a symbolic link and report errors

SYNOPSIS

       #include <libexplain/readlink.h>
       ssize_t explain_readlink_or_die(const char *pathname, char *data, size_t data_size);
       ssize_t explain_readlink_on_error(const char *pathname, char *data, size_t data_size))

DESCRIPTION

       The  explain_readlink_or_die  function  is  used  to call the readlink(2) system call. On failure an explanation will be printed to stderr,
       obtained from the explain_readlink(3) function, and then the process terminates by calling exit(EXIT_FAILURE).

       The explain_readlink_on_error function is used to call the readlink(2) system call. On failure an explanation will be  printed  to  stderr,
       obtained from the explain_readlink(3) function, but still returns to the caller.

       pathname
	       The pathname, exactly as to be passed to the readlink(2) system call.

       data    The data, exactly as to be passed to the readlink(2) system call.

       data_size
	       The data_size, exactly as to be passed to the readlink(2) system call.

RETURN VALUE

       The  explain_readlink_or_die  function only returns on success, see readlink(2) for more information. On failure, prints an explanation and
       exits, it does not return.

       The explain_readlink_on_error function always returns the value return by the wrapped readlink(2) system call.

EXAMPLE

       The explain_readlink_or_die function is intended to be used in a fashion similar to the following example:
	      ssize_t result = explain_readlink_or_die(pathname, data, data_size);

SEE ALSO

       readlink(2)
	       read value of a symbolic link

       explain_readlink(3)
	       explain readlink(2) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 0.52
       Copyright (C) 2009 Peter Miller

															explain_readlink_or_die(3)