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vfs: handle odd edge case in mkdir correctly

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This commit is contained in:
K. Lange 2018-12-26 16:14:28 +09:00
parent 232128bc3e
commit 40be4f1703
1 changed files with 9 additions and 0 deletions
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9
kernel/fs/vfs.c
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@ -423,6 +423,10 @@ int mkdir_fs(char *name, uint16_t permission) {
char *cwd = (char *)(current_process->wd_name);
char *path = canonicalize_path(cwd, name);
if (!name || !strlen(name)) {
return -EINVAL;
}
char * parent_path = malloc(strlen(path) + 4);
sprintf(parent_path, "%s/..", path);
@ -455,6 +459,11 @@ int mkdir_fs(char *name, uint16_t permission) {
return -EACCES;
}
if (!f_path || !strlen(f_path)) {
/* Odd edge case with / */
return -EEXIST;
}
int ret = 0;
if (parent->mkdir) {
ret = parent->mkdir(parent, f_path, permission);