int
ustar_strd(void)
{
if ((usrtb_start() < 0) || (grptb_start() < 0))
return(-1);
return(0);
}
int
uid_name(char *name, uid_t *uid)
{
struct passwd *pw;
UIDC *ptr;
int namelen;
/*
* return -1 for mangled names
*/
if (((namelen = strlen(name)) == 0) || (name[0] == '\0'))
return(-1);
if ((usrtb == NULL) && (usrtb_start() < 0))
return(-1);
/*
* look up in hash table, if found and valid return the uid,
* if found and invalid, return a -1
*/
ptr = usrtb[st_hash(name, namelen, UNM_SZ)];
if ((ptr != NULL) && (ptr->valid > 0) && !strcmp(name, ptr->name)) {
if (ptr->valid == INVALID)
return(-1);
*uid = ptr->uid;
return(0);
}
if (!pwopn) {
setpassent(1);
++pwopn;
}
if (ptr == NULL)
ptr = usrtb[st_hash(name, namelen, UNM_SZ)] =
(UIDC *)malloc(sizeof(UIDC));
/*
* no match, look it up, if no match store it as an invalid entry,
* or store the matching uid
*/
if (ptr == NULL) {
if ((pw = getpwnam(name)) == NULL)
return(-1);
*uid = pw->pw_uid;
return(0);
}
(void)strncpy(ptr->name, name, UNMLEN - 1);
ptr->name[UNMLEN-1] = '\0';
if ((pw = getpwnam(name)) == NULL) {
ptr->valid = INVALID;
return(-1);
}
ptr->valid = VALID;
*uid = ptr->uid = pw->pw_uid;
return(0);
}
