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PWCACHE (3) | C library functions | Unix Manual Pages | :man

NAME

pwcache - cache password and group entries

CONTENTS

Library
Synopsis
Description
See Also
History

LIBRARY


.Lb libc

SYNOPSIS


.In pwd.h const char * user_from_uid "unsigned long uid" "int nouser"
.In grp.h const char * group_from_gid "unsigned long gid" "int nogroup"

DESCRIPTION

The user_from_uid function returns the user name associated with the argument uid. The user name is cached so that multiple calls with the same uid do not require additional calls to getpwuid(3). If there is no user associated with the uid, a pointer is returned to a string representation of the uid, unless the argument nouser is non-zero, in which case a NULL pointer is returned.

The group_from_gid function returns the group name associated with the argument gid. The group name is cached so that multiple calls with the same gid do not require additional calls to getgrgid(3). If there is no group associated with the gid, a pointer is returned to a string representation of the gid, unless the argument nogroup is non-zero, in which case a NULL pointer is returned.

SEE ALSO

getgrgid(3), getpwuid(3)

HISTORY


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