Re: [Libguestfs] [PATCH nbdkit filters-v2 5/5] INCOMPLETE filters: Add nbdkit-partition-filter.

This can be used to filter a single partition from a disk image. --- TODO | 2 - configure.ac | 1 + filters/Makefile.am | 3 +- filters/delay/delay.c | 12 +-- filters/offset/nbdkit-offset-filter.pod | 17 ++- filters/offset/offset.c | 20 ++-- filters/partition/Makefile.am | 62 +++++++++++ filters/partition/nbdkit-partition-filter.pod | 94 +++++++++++++++++ filters/partition/partition.c | 145 ++++++++++++++++++++++++++ 9 files changed, 336 insertions(+), 20 deletions(-) diff --git a/TODO b/TODO index 3ec45fd..b1f922e 100644 --- a/TODO

+++ b/filters/delay/delay.c @@ -121,30 +121,30 @@ delay_config (nbdkit_next_config *next, void *nxdata, /* Read data. */ static int -delay_pread (struct nbdkit_next *next, void *nxdata, +delay_pread (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, void *buf, uint32_t count, uint64_t offset)

+++ b/filters/offset/offset.c @@ -81,10 +81,10 @@ offset_config_complete (nbdkit_next_config_complete *next, void *nxdata) /* Get the file size. */ static int64_t -offset_get_size (struct nbdkit_next *next, void *nxdata, +offset_get_size (struct nbdkit_next_ops *next_ops, void *nxdata,

+++ b/filters/partition/partition.c @@ -0,0 +1,145 @@

+/* Called for each key=value passed on the command line. */ +static int +partition_config (nbdkit_next_config *next, void *nxdata, + const char *key, const char *value) +{ + if (strcmp (key, "partition") == 0) { + if (sscanf (value, "%d", &partnum) != 1 || partnum <= 0) {

+#define partition_config_help \ + "partition=<PART> (required) The partition number (counting from 1)." + +#if 0