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author | Volker Lendecke <vl@samba.org> | 2008-01-19 23:10:09 +0100 |
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committer | Volker Lendecke <vl@samba.org> | 2008-01-19 23:10:09 +0100 |
commit | 2411c6cb90e485bd289b8b654db1c632556bfb2d (patch) | |
tree | fcd3c960687e50626e1f488133c28b87c349a97d /source3/lib | |
parent | 14e7c292bc76b0edb8cafcaa728a612fa806fa6d (diff) | |
download | samba-2411c6cb90e485bd289b8b654db1c632556bfb2d.tar.gz samba-2411c6cb90e485bd289b8b654db1c632556bfb2d.tar.bz2 samba-2411c6cb90e485bd289b8b654db1c632556bfb2d.zip |
Add "split_ntfs_stream_name()" together with a torture test
(This used to be commit d813bd9e02d9baf916eb96c478be89f0c435e07c)
Diffstat (limited to 'source3/lib')
-rw-r--r-- | source3/lib/util.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/source3/lib/util.c b/source3/lib/util.c index bc3eaa8d5e..11f3660df8 100644 --- a/source3/lib/util.c +++ b/source3/lib/util.c @@ -3273,3 +3273,93 @@ void *talloc_zeronull(const void *context, size_t size, const char *name) return talloc_named_const(context, size, name); } #endif + +/* Split a path name into filename and stream name components. Canonicalise + * such that an implicit $DATA token is always explicit. + * + * The "specification" of this function can be found in the + * run_local_stream_name() function in torture.c, I've tried those + * combinations against a W2k3 server. + */ + +NTSTATUS split_ntfs_stream_name(TALLOC_CTX *mem_ctx, const char *fname, + char **pbase, char **pstream) +{ + char *base = NULL; + char *stream = NULL; + char *sname; /* stream name */ + const char *stype; /* stream type */ + + DEBUG(10, ("split_ntfs_stream_name called for [%s]\n", fname)); + + sname = strchr_m(fname, ':'); + + if (lp_posix_pathnames() || (sname == NULL)) { + if (pbase != NULL) { + base = talloc_strdup(mem_ctx, fname); + NT_STATUS_HAVE_NO_MEMORY(base); + } + goto done; + } + + if (pbase != NULL) { + base = talloc_strndup(mem_ctx, fname, PTR_DIFF(sname, fname)); + NT_STATUS_HAVE_NO_MEMORY(base); + } + + sname += 1; + + stype = strchr_m(sname, ':'); + + if (stype == NULL) { + sname = talloc_strdup(mem_ctx, sname); + stype = "$DATA"; + } + else { + if (StrCaseCmp(stype, ":$DATA") != 0) { + /* + * If there is an explicit stream type, so far we only + * allow $DATA. Is there anything else allowed? -- vl + */ + DEBUG(10, ("[%s] is an invalid stream type\n", stype)); + TALLOC_FREE(base); + return NT_STATUS_OBJECT_NAME_INVALID; + } + sname = talloc_strndup(mem_ctx, sname, PTR_DIFF(stype, sname)); + stype += 1; + } + + if (sname == NULL) { + TALLOC_FREE(base); + return NT_STATUS_NO_MEMORY; + } + + if (sname[0] == '\0') { + /* + * no stream name, so no stream + */ + goto done; + } + + if (pstream != NULL) { + stream = talloc_asprintf(mem_ctx, "%s:%s", sname, stype); + if (stream == NULL) { + TALLOC_FREE(sname); + TALLOC_FREE(base); + return NT_STATUS_NO_MEMORY; + } + /* + * upper-case the type field + */ + strupper_m(strchr_m(stream, ':')+1); + } + + done: + if (pbase != NULL) { + *pbase = base; + } + if (pstream != NULL) { + *pstream = stream; + } + return NT_STATUS_OK; +} |