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__FSEXT_get_data

Syntax

#include <sys/fsext.h>

void *__FSEXT_get_data(int _fd);

Description

This function is part of the section File System Extensions. It is used to retrieve a descriptor-specific pointer that was previously stored by __FSEXT_set_data (see section __FSEXT_set_data). The pointer is not otherwise used.

See section __FSEXT_set_data, for an example of how this may be used.

Return Value

Returns the stored pointer, or NULL if there was an error (or no pointer had been stored).

Portability

not ANSI, not POSIX


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