io_readwritefile - open a file for reading and writing

NAME  SYNTAX  DESCRIPTION  SEE ALSO 

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NAME

io_readfile − open a file for reading and writing

SYNTAX

#include <libowfat/io.h>

int io_readwritefile(int64* d,const char* filename);

DESCRIPTION

io_readwritefile sets d to the number of a new descriptor reading from and writing to the disk file named filename, and returns 1. The file needs to exist.

If something goes wrong, io_readwritefile sets errno to indicate the error, and returns 0; it does not create a new descriptor, and it does not touch d.

SEE ALSO

io_readfile(3), io_createfile(3), io_appendfile(3)

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