libburnia/libisofs
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Take care about duplicate node names in iso_node_set_name().

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This commit is contained in:
Vreixo Formoso 2007-12-06 02:22:11 +01:00
parent 06db9a3c73
commit d4deb4866f
2 changed files with 31 additions and 8 deletions
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14
src/libisofs.h
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@ -191,11 +191,15 @@ void iso_node_ref(IsoNode *node);
void iso_node_unref(IsoNode *node);
/**
* Set the name of a node.
* Set the name of a node. Note that if the node is already added to a dir
* this can fail if dir already contains a node with the new name.
*
* @param name The name in UTF-8 encoding
* @param name
* The name in UTF-8 encoding
* @return
* 1 on success, < 0 on error
*/
void iso_node_set_name(IsoNode *node, const char *name);
int iso_node_set_name(IsoNode *node, const char *name);
/**
* Get the name of a node (in UTF-8).
@ -289,10 +293,12 @@ int iso_dir_add_node(IsoDir *dir, IsoNode *child, int replace);
* doesn't have a child with the given name.
* The node will be owned by the dir and shouldn't be unref(). Just call
* iso_node_ref() to get your own reference to the node.
* Note that you can pass NULL is the only thing you want to do is check
* if a node with such name already exists on dir.
* @return
* 1 node found, 0 child has no such node, < 0 error
* Possible errors:
* ISO_NULL_POINTER, if dir, node or name are NULL
* ISO_NULL_POINTER, if dir or name are NULL
*/
int iso_dir_get_node(IsoDir *dir, const char *name, IsoNode **node);

25
src/node.c
View File

@ -68,10 +68,17 @@ void iso_node_unref(IsoNode *node)
*
* @param name The name in UTF-8 encoding
*/
void iso_node_set_name(IsoNode *node, const char *name)
int iso_node_set_name(IsoNode *node, const char *name)
{
if (node->parent != NULL) {
/* check if parent already has a node with same name */
if (iso_dir_get_node(node->parent, name, NULL) == 1) {
return ISO_NODE_NAME_NOT_UNIQUE;
}
}
free(node->name);
node->name = strdup(name);
return node->name != NULL ? ISO_SUCCESS : ISO_MEM_ERROR;
}
/**
@ -221,13 +228,19 @@ int iso_dir_add_node(IsoDir *dir, IsoNode *child, int replace)
* @param node
* Location for a pointer to the node, it will filled with NULL if the dir
* doesn't have a child with the given name.
* The node will be owned by the dir and shouldn't be unref(). Just call
* iso_node_ref() to get your own reference to the node.
* Note that you can pass NULL is the only thing you want to do is check
* if a node with such name already exists on dir.
* @return
* 1 node found, 0 child has no such node, < 0 error
* Possible errors:
* ISO_NULL_POINTER, if dir or name are NULL
*/
int iso_dir_get_node(IsoDir *dir, const char *name, IsoNode **node)
{
IsoNode *pos;
if (dir == NULL || name == NULL || node == NULL) {
if (dir == NULL || name == NULL) {
return ISO_NULL_POINTER;
}
@ -237,11 +250,15 @@ int iso_dir_get_node(IsoDir *dir, const char *name, IsoNode **node)
}
if (pos == NULL || strcmp(pos->name, name)) {
*node = NULL;
if (node) {
*node = NULL;
}
return 0; /* node not found */
}
*node = pos;
if (node) {
*node = pos;
}
return 1;
}