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Man Pages


Manual Reference Pages  -  KINFO_GETFILE (3)

NAME

kinfo_getfile - function for getting per-process file descriptor information

CONTENTS

Library
Synopsis
Description
Return Values
See Also

LIBRARY


.Lb libutil

SYNOPSIS


.In sys/types.h
.In sys/user.h
.In libutil.h struct kinfo_file * kinfo_getfile pid_t pid int *cntp

DESCRIPTION

This function is used for obtaining the file descriptor information of a particular process.

The pid field contains the process identifier. This should be the a process that you have privilege to access. The cntp field allows the caller to know how many records are returned.

This function is a wrapper around sysctl(3) with the KERN_PROC_FILEDESC mib. While the kernel returns a packed structure, this function expands the data into a fixed record format.

RETURN VALUES

On success the kinfo_getfile function returns a pointer to an array of
.Vt struct kinfo_file structures as defined by
.In sys/user.h . The array was obtained by an internal call to malloc(3) and must be freed by the caller with a call to free(3). On failure the kinfo_getfile function returns NULL.

SEE ALSO

free(3), kinfo_getvmmap(3), malloc(3), sysctl(3)
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