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...out of range. And for safety's sake, we are best capping our request to an aligned value, if the server insists on minimum alignment. Fixes: f3fd935c --- info/nbdinfo.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/info/nbdinfo.c b/info/nbdinfo.c index 1afdf98..2b22f51 100644 --- a/info/nbdinfo.c +++ b/info/nbdinfo.c @@ -31,6 +31,8 @@ #include <libnbd.h> +#define MIN(a,b) ((a) < (b) ? (a) : (b)) + static const char *progname; static FILE *fp; static bool list_all = false; @@ -267,7 +269,7 @@ main (int argc, char *argv[]) fprintf (fp, "%&q...

A rather trivial decoding; we may enhance it further if qemu extends things to give an integer depth alongside its tri-state encoding. --- I'll wait to push this to libnbd until the counterpart qemu patches land upstream, although it looks like I've got positive review. info/nbdinfo.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/info/nbdinfo.c b/info/nbdinfo.c index

...at actually got committed into qemu, which in turn means a slight refactoring to use a malloc'd string for a description. Fixes: 71455c021 --- info/nbdinfo.c | 27 +++++++++++++++------------ 1 file changed, 15 insertions(+), 12 deletions(-) diff --git a/info/nbdinfo.c b/info/nbdinfo.c index 2b22f51..b152f28 100644 --- a/info/nbdinfo.c +++ b/info/nbdinfo.c @@ -767,28 +767,30 @@ get_content (struct nbd_handle *nbd, int64_t size) } /* Callback handling --map. */ -static const char * +static char * extent_description (const char *metacontext, uint32_t type) { + char *ret; + if (strcmp (m...

This adds coalescing of adjacent extents of the same type, as mentioned by Eric Blake in the commit message here: https://github.com/libguestfs/libnbd/commit/46072f6611f80245846a445766da071e457b00cd The patch series is rather long because it detours through adding the <vector.h> library from nbdkit into libnbd and replacing ad hoc uses of realloc, char ** etc in various places. Rich.