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Man Pages


Manual Reference Pages  -  INITGROUPS (3)

NAME

initgroups - initialize group access list

CONTENTS

Library
Synopsis
Description
Return Values
Errors
See Also
History
Bugs

LIBRARY


.Lb libc

SYNOPSIS


.In unistd.h int initgroups const char *name gid_t basegid

DESCRIPTION

The initgroups function uses the getgrouplist(3) function to calculate the group access list for the user specified in name. This group list is then setup for the current process using setgroups(2). The basegid is automatically included in the groups list. Typically this value is given as the group number from the password file.

RETURN VALUES


.Rv -std initgroups

ERRORS

The initgroups function may fail and set errno for any of the errors specified for the library function setgroups(2). It may also return:
[ENOMEM]
  The initgroups function was unable to allocate temporary storage.

SEE ALSO

setgroups(2), getgrouplist(3)

HISTORY

The initgroups function appeared in BSD 4.2 .

BUGS

The getgrouplist function called by initgroups uses the routines based on getgrent(3). If the invoking program uses any of these routines, the group structure will be overwritten in the call to initgroups.
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