Commit 9893f56b8a3f2f1c2136a0888ecd3643d4ff9b11
2018-05-16T14:47:04
path: provide a generic function for checking dogit files on NTFS It checks against the 8.3 shortname variants, including the one which includes the checksum as part of its name.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
diff --git a/src/path.c b/src/path.c
index 0f8bbcc..e135e3b 100644
--- a/src/path.c
+++ b/src/path.c
@@ -1620,6 +1620,59 @@ GIT_INLINE(bool) verify_dotgit_ntfs(git_repository *repo, const char *path, size
return false;
}
+GIT_INLINE(bool) only_spaces_and_dots(const char *path)
+{
+ const char *c = path;
+
+ for (;; c++) {
+ if (*c == '\0')
+ return true;
+ if (*c != ' ' && *c != '.')
+ return false;
+ }
+
+ return true;
+}
+
+GIT_INLINE(bool) verify_dotgit_ntfs_generic(const char *name, const char *dotgit_name, const char *shortname_pfix)
+{
+ size_t len = strlen(name);
+ size_t dotgit_len = strlen(dotgit_name);
+ int i, saw_tilde;
+
+ if (name[0] == '.' && len >= dotgit_len &&
+ !strncasecmp(name + 1, dotgit_name, dotgit_len)) {
+ return !only_spaces_and_dots(name + dotgit_len + 1);
+ }
+
+ /* Detect the basic NTFS shortname with the first six chars */
+ if (!strncasecmp(name, dotgit_name, 6) && name[6] == '~' &&
+ name[7] >= '1' && name[7] <= '4')
+ return !only_spaces_and_dots(name + 8);
+
+ /* Catch fallback names */
+ for (i = 0, saw_tilde = 0; i < 8; i++) {
+ if (name[i] == '\0') {
+ return true;
+ } else if (saw_tilde) {
+ if (name[i] < '0' || name[i] > '9')
+ return true;
+ } else if (name[i] == '~') {
+ if (name[i+1] < '1' || name[i+1] > '9')
+ return true;
+ saw_tilde = 1;
+ } else if (i >= 6) {
+ return true;
+ } else if (name[i] < 0) {
+ return true;
+ } else if (git__tolower(name[i]) != shortname_pfix[i]) {
+ return true;
+ }
+ }
+
+ return !only_spaces_and_dots(name + i);
+}
+
GIT_INLINE(bool) verify_char(unsigned char c, unsigned int flags)
{
if ((flags & GIT_PATH_REJECT_BACKSLASH) && c == '\\')