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initgroups(3C) Standard C Library Functions initgroups(3C) NAME initgroups - initialize the supplementary group access list SYNOPSIS #include <grp.h> #include <sys/types.h> int initgroups(const char *name, gid_t basegid); DESCRIPTION The initgroups() function reads the group database to get the group membership for the user specified by name, and initializes the supple- mentary group access list of the calling process (see getgrnam(3C) and getgroups(2)). The basegid group ID is also included in the supplemen- tary group access list. This is typically the real group ID from the user database. While scanning the group database, if the number of groups, including the basegid entry, exceeds NGROUPS_MAX, subsequent group entries are ignored. RETURN VALUES Upon successful completion, 0 is returned. Otherwise, -1 is returned and errno is set to indicate the error. ERRORS The initgroups() function will fail and not change the supplementary group access list if: EPERM The {PRIV_PROC_SETID} privilege is not asserted in the effec- tive set of the calling process. ATTRIBUTES See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO getgroups(2), getgrnam(3C), attributes(5) SunOS 5.10 22 Mar 2004 initgroups(3C)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | ATTRIBUTES | SEE ALSO
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