ref: c11957a7915d355d80ff7e6a21721ba05441ca29
dir: /liblogfs/group.c/
#include "logfsos.h" #include "logfs.h" #include "local.h" enum { GROUPMOD = 127 }; static int groupcompare(void *a, void *b) { Group *g = a; char *uid = b; return g->uid == uid; } static int unamecompare(void *a, void *b) { Uname *u = a; char *uname = b; return u->uname == uname; } static int groupallocsize(void *key) { USED(key); return sizeof(Group); } static int unameallocsize(void *key) { USED(key); return sizeof(Uname); } char * logfsgroupmapnew(GroupMap **groupmapp, UnameMap **unamemapp) { char *errmsg; errmsg = logfsmapnew(GROUPMOD, logfshashulong, groupcompare, groupallocsize, nil, groupmapp); if(errmsg) return errmsg; errmsg = logfsmapnew(GROUPMOD, logfshashulong, unamecompare, unameallocsize, nil, unamemapp); if(errmsg) logfsmapfree(groupmapp); return errmsg; } char * logfsgroupmapnewentry(GroupMap *gm, UnameMap *um, char *uid, char *uname, Group **groupp, Uname **unamep) { char *errmsg; errmsg = logfsmapnewentry(gm, uid, groupp); if(errmsg) return errmsg; if(*groupp == nil) return "uid already exists"; (*groupp)->uid = uid; errmsg = logfsgroupsetnew(&(*groupp)->members); if(errmsg) { logfsmapdeleteentry(gm, uid); return errmsg; } errmsg = logfsmapnewentry(um, uname, unamep); if(errmsg == nil && *unamep == nil) errmsg = "uname already exists"; if(errmsg) { logfsgroupsetfree(&(*groupp)->members); logfsmapdeleteentry(gm, uid); return errmsg; } (*groupp)->uname = uname; (*unamep)->uname = uname; (*unamep)->g = *groupp; return nil; } char * logfsgroupmapfinduname(GroupMap *m, char *uid) { Group *g; g = logfsgroupmapfindentry(m, uid); if(g) return g->uname; return nil; } char * logfsunamemapfinduid(UnameMap *m, char *uname) { Uname *u; u = logfsunamemapfindentry(m, uname); if(u) return u->g->uid; return nil; }