Change Details

NGROUPS_MAX is just the minimum maximum of the number of allowed supplementary groups. The actual runtime value may be greater. Allow more groups to be specified accordingly (now that, a few commits ago, nmount(2) has been changed similarly).

NGROUPS_MAX is just the minimum maximum of the number of allowed supplementary groups. The actual runtime value may be greater. Allow more groups to be specified accordingly (now that, a few commits ago, nmount(2) has been changed similarly). To this end, we just allocate once and for all a static array called 'tmp_groups' big enough to hold {NGROUPS_MAX} + 1 groups (the maximum number of supplementary groups and the effective GID) in main() and use this temporary space in get_exportlist_one(), do_opt() and parsecred(). Doing so in passing fixes a memory leak in case "-maproot" and/or "-mapall" were specified multiple times. parcred() does not use 'cr_smallgrps' anymore, but we have kept 'cr_smallgrps'/SMALLNGROUPS as 'struct expcred' is also included in 'struct exportlist' and 'struct grouplist', and thus this preallocated field still results in an optimization for the common case of small number of groups (although its real impact is probably negligible and arguably not worth the trouble). While here, in do_mount(), remove some unnecessary groups array allocation and copying.

NGROUPS_MAX is just the minimum maximum of the number of allowed supplementary groups. The actual runtime value may be greater. Allow more groups to be specified accordingly (now that, a few commits ago, nmount(2) has been changed similarly). To this end, we just allocate once and for all a static array called 'tmp_groups' big enough to hold {NGROUPS_MAX} + 1 groups (the maximum number of supplementary groups and the effective GID) in main() and use this temporary space in get_exportlist_one(), do_opt() and parsecred(). Doing so in passing fixes a memory leak in case "-maproot" and/or "-mapall" were specified multiple times. parcred() does not use 'cr_smallgrps' anymore, but we have kept 'cr_smallgrps'/SMALLNGROUPS as 'struct expcred' is also included in 'struct exportlist' and 'struct grouplist', and thus this preallocated field still results in an optimization for the common case of small number of groups (although its real impact is probably negligible and arguably not worth the trouble). While here, in do_mount(), remove some unnecessary groups array allocation and copying.