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| author |  Jonathan Nieder <jrnieder@gmail.com> | 2010-11-17 23:02:48 -0600 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2010-11-24 14:48:52 -0800 |
| commit | b3e5bce1aa88721dd4565089960997836ce66add (patch) | |
| tree | f116da9e6e8987c1587fa0f87c576579f39035ff /vcs-svn | |
| parent | Merge branch 'jl/maint-pull-tags-doc' (diff) | |
| download | tgif-b3e5bce1aa88721dd4565089960997836ce66add.tar.xz | |
vcs-svn: Error out for v3 dumps
By ignoring the Text-Delta and Prop-Delta node fields, current svn-fe
happily mistakes deltas for full text and instead of cleanly erroring
out, it produces a valid but semantically bogus fast-import stream
when fed a dump file in the modern "svnadmin dump --deltas" format.
Dump file parsers are supposed to ignore header fields they don't
understand (to allow for backward-compatible extensions), but they are
also supposed to check the SVN-fs-dump-format-version header to
prevent misinterpretation of non backward-compatible extensions.
Do so.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'vcs-svn')
| -rw-r--r-- | vcs-svn/svndump.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/vcs-svn/svndump.c b/vcs-svn/svndump.c index 53d0215d2d..fa580e62de 100644 --- a/vcs-svn/svndump.c +++ b/vcs-svn/svndump.c @@ -51,14 +51,14 @@ static struct { } rev_ctx; static struct { - uint32_t uuid, url; + uint32_t version, uuid, url; } dump_ctx; static struct { uint32_t svn_log, svn_author, svn_date, svn_executable, svn_special, uuid, revision_number, node_path, node_kind, node_action, node_copyfrom_path, node_copyfrom_rev, text_content_length, - prop_content_length, content_length; + prop_content_length, content_length, svn_fs_dump_format_version; } keys; static void reset_node_ctx(char *fname) @@ -85,6 +85,7 @@ static void reset_rev_ctx(uint32_t revision) static void reset_dump_ctx(uint32_t url) { dump_ctx.url = url; + dump_ctx.version = 1; dump_ctx.uuid = ~0; } @@ -105,6 +106,7 @@ static void init_keys(void) keys.text_content_length = pool_intern("Text-content-length"); keys.prop_content_length = pool_intern("Prop-content-length"); keys.content_length = pool_intern("Content-length"); + keys.svn_fs_dump_format_version = pool_intern("SVN-fs-dump-format-version"); } static void read_props(void) @@ -206,7 +208,12 @@ void svndump_read(const char *url) *val++ = '\0'; key = pool_intern(t); - if (key == keys.uuid) { + if (key == keys.svn_fs_dump_format_version) { + dump_ctx.version = atoi(val); + if (dump_ctx.version > 2) + die("expected svn dump format version <= 2, found %d", + dump_ctx.version); + } else if (key == keys.uuid) { dump_ctx.uuid = pool_intern(val); } else if (key == keys.revision_number) { if (active_ctx == NODE_CTX) |