diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/hashtable.c | 37 |
1 files changed, 20 insertions, 17 deletions
diff --git a/lib/hashtable.c b/lib/hashtable.c index 94a7b61..f0056ac 100644 --- a/lib/hashtable.c +++ b/lib/hashtable.c @@ -142,7 +142,7 @@ int hcreate_r(size_t nel, struct hsearch_data *htab) * be freed and the local static variable can be marked as not used. */ -void hdestroy_r(struct hsearch_data *htab, int do_apply) +void hdestroy_r(struct hsearch_data *htab) { int i; @@ -156,10 +156,7 @@ void hdestroy_r(struct hsearch_data *htab, int do_apply) for (i = 1; i <= htab->size; ++i) { if (htab->table[i].used > 0) { ENTRY *ep = &htab->table[i].entry; - if (do_apply && htab->apply != NULL) { - /* deletion is always forced */ - htab->apply(ep->key, ep->data, NULL, H_FORCE); - } + free((void *)ep->key); free(ep->data); } @@ -251,7 +248,7 @@ int hmatch_r(const char *match, int last_idx, ENTRY ** retval, } int hsearch_r(ENTRY item, ACTION action, ENTRY ** retval, - struct hsearch_data *htab) + struct hsearch_data *htab, int flag) { unsigned int hval; unsigned int count; @@ -404,7 +401,7 @@ int hsearch_r(ENTRY item, ACTION action, ENTRY ** retval, * do that. */ -int hdelete_r(const char *key, struct hsearch_data *htab, int do_apply) +int hdelete_r(const char *key, struct hsearch_data *htab, int flag) { ENTRY e, *ep; int idx; @@ -413,15 +410,21 @@ int hdelete_r(const char *key, struct hsearch_data *htab, int do_apply) e.key = (char *)key; - if ((idx = hsearch_r(e, FIND, &ep, htab)) == 0) { + idx = hsearch_r(e, FIND, &ep, htab, 0); + if (idx == 0) { __set_errno(ESRCH); return 0; /* not found */ } + /* Check for permission */ + if (htab->apply != NULL && + htab->apply(ep->key, ep->data, NULL, flag)) { + __set_errno(EPERM); + return 0; + } + /* free used ENTRY */ debug("hdelete: DELETING key \"%s\"\n", key); - if (do_apply && htab->apply != NULL) - htab->apply(ep->key, ep->data, NULL, H_FORCE); free((void *)ep->key); free(ep->data); htab->table[idx].used = -1; @@ -674,7 +677,7 @@ static int drop_var_from_set(const char *name, int nvars, char * vars[]) int himport_r(struct hsearch_data *htab, const char *env, size_t size, const char sep, int flag, - int nvars, char * const vars[], int do_apply) + int nvars, char * const vars[]) { char *data, *sp, *dp, *name, *value; char *localvars[nvars]; @@ -704,7 +707,7 @@ int himport_r(struct hsearch_data *htab, debug("Destroy Hash Table: %p table = %p\n", htab, htab->table); if (htab->table) - hdestroy_r(htab, do_apply); + hdestroy_r(htab); } /* @@ -770,7 +773,7 @@ int himport_r(struct hsearch_data *htab, if (!drop_var_from_set(name, nvars, localvars)) continue; - if (hdelete_r(name, htab, do_apply) == 0) + if (hdelete_r(name, htab, flag) == 0) debug("DELETE ERROR ##############################\n"); continue; @@ -795,14 +798,14 @@ int himport_r(struct hsearch_data *htab, e.data = value; /* if there is an apply function, check what it has to say */ - if (do_apply && htab->apply != NULL) { + if (htab->apply != NULL) { debug("searching before calling cb function" " for %s\n", name); /* * Search for variable in existing env, so to pass * its previous value to the apply callback */ - hsearch_r(e, FIND, &rv, htab); + hsearch_r(e, FIND, &rv, htab, 0); debug("previous value was %s\n", rv ? rv->data : ""); if (htab->apply(name, rv ? rv->data : NULL, value, flag)) { @@ -812,7 +815,7 @@ int himport_r(struct hsearch_data *htab, } } - hsearch_r(e, ENTER, &rv, htab); + hsearch_r(e, ENTER, &rv, htab, flag); if (rv == NULL) { printf("himport_r: can't insert \"%s=%s\" into hash table\n", name, value); @@ -839,7 +842,7 @@ int himport_r(struct hsearch_data *htab, * b) if the variable was not present in current env, we notify * it might be a typo */ - if (hdelete_r(localvars[i], htab, do_apply) == 0) + if (hdelete_r(localvars[i], htab, flag) == 0) printf("WARNING: '%s' neither in running nor in imported env!\n", localvars[i]); else printf("WARNING: '%s' not in imported env, deleting it!\n", localvars[i]); |