libburnia/libisofs
2
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Guard against wrong POSIX filenames in node.

Browse Source
This commit is contained in:
Vreixo Formoso 2007-12-26 16:34:07 +01:00
parent 6509134411
commit 5f6b5fd930
1 changed files with 12 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/node.c
View File

@ -80,10 +80,21 @@ int iso_node_set_name(IsoNode *node, const char *name)
{ {
char *new; char *new;
/* guard against the empty string */ /* guard against the empty string or big names... */
if (name[0] == '\0' || strlen(name) > 255) { if (name[0] == '\0' || strlen(name) > 255) {
return ISO_WRONG_ARG_VALUE; return ISO_WRONG_ARG_VALUE;
} }
/* ...against "." and ".." names... */
if (!strcmp(name, ".") || !strcmp(name, "..")) {
return ISO_WRONG_ARG_VALUE;
}
/* ...and against names with '/' */
if (strchr(name, '/') != NULL) {
return ISO_WRONG_ARG_VALUE;
}
if ((IsoNode*)node->parent == node) { if ((IsoNode*)node->parent == node) {
/* you can't change name of the root node */ /* you can't change name of the root node */
return ISO_WRONG_ARG_VALUE; return ISO_WRONG_ARG_VALUE;