#include <unistd.h>
#include "fish.h"
+#include "prepopts.h"
static prep_data *parse_type_string (const char *type_string);
-static void prep_error (prep_data *data, const char *filename, const char *fs, ...) __attribute__((noreturn, format (printf,3,4)));
-
-struct prep {
- const char *name; /* eg. "fs" */
-
- size_t nr_params; /* optional parameters */
- struct param *params;
-
- const char *shortdesc; /* short description */
- const char *longdesc; /* long description */
-
- /* functions to implement it */
- void (*prelaunch) (const char *filename, prep_data *);
- void (*postlaunch) (const char *filename, prep_data *, const char *device);
-};
-
-struct param {
- const char *pname; /* parameter name */
- const char *pdefault; /* parameter default */
- const char *pdesc; /* parameter description */
-};
-
-static void prelaunch_disk (const char *filename, prep_data *data);
-static struct param disk_params[] = {
- { "size", "100M", "the size of the disk image" },
-};
-
-static void prelaunch_part (const char *filename, prep_data *data);
-static void postlaunch_part (const char *filename, prep_data *data, const char *device);
-static struct param part_params[] = {
- { "size", "100M", "the size of the disk image" },
- { "partition", "mbr", "partition table type" },
-};
-
-static void prelaunch_fs (const char *filename, prep_data *data);
-static void postlaunch_fs (const char *filename, prep_data *data, const char *device);
-static struct param fs_params[] = {
- { "filesystem", "ext2", "the type of filesystem to use" },
- { "size", "100M", "the size of the disk image" },
- { "partition", "mbr", "partition table type" },
-};
-
-static const struct prep preps[] = {
- { "disk",
- 1, disk_params,
- "create a blank disk",
- "\
- Create a blank disk, size 100MB (by default).\n\
-\n\
- The default size can be changed by supplying an optional parameter.",
- prelaunch_disk, NULL
- },
- { "part",
- 2, part_params,
- "create a partitioned disk",
- "\
- Create a disk with a single partition. By default the size of the disk\n\
- is 100MB (the available space in the partition will be a tiny bit smaller)\n\
- and the partition table will be MBR (old DOS-style).\n\
-\n\
- These defaults can be changed by supplying optional parameters.",
- prelaunch_part, postlaunch_part
- },
- { "fs",
- 3, fs_params,
- "create a filesystem",
- "\
- Create a disk with a single partition, with the partition containing\n\
- an empty filesystem. This defaults to creating a 100MB disk (the available\n\
- space in the filesystem will be a tiny bit smaller) with an MBR (old\n\
- DOS-style) partition table and an ext2 filesystem.\n\
-\n\
- These defaults can be changed by supplying optional parameters.",
- prelaunch_fs, postlaunch_fs
- },
-};
-
-#define nr_preps (sizeof preps / sizeof preps[0])
void
list_prepared_drives (void)
printf (_("List of available prepared disk images:\n\n"));
- for (i = 0; i < nr_preps; ++i) {
+ for (i = 0; i < NR_PREPS; ++i) {
printf (_("\
guestfish -N %-16s %s\n\
\n\
For more information see the guestfish(1) manual.\n"));
}
-struct prep_data {
- const struct prep *prep;
- const char *orig_type_string;
- const char **params;
-};
-
/* Parse the type string (from the command line) and create the output
* file 'filename'. This is called before launch. Return the opaque
* prep_data which will be passed back to us in prepare_drive below.
/* Match on the type part (without parameters). */
size_t len = strcspn (type_string, ":");
- for (i = 0; i < nr_preps; ++i)
+ for (i = 0; i < NR_PREPS; ++i)
if (STRCASEEQLEN (type_string, preps[i].name, len))
break;
- if (i == nr_preps) {
+ if (i == NR_PREPS) {
fprintf (stderr, _("\
guestfish: -N parameter '%s': no such prepared disk image known.\n\
Use 'guestfish -N list' to list possible values for the -N parameter.\n"),
data->prep->postlaunch (filename, data, device);
}
-static void
+void
prep_error (prep_data *data, const char *filename, const char *fs, ...)
{
fprintf (stderr,
exit (EXIT_FAILURE);
}
-
-static void
-prelaunch_disk (const char *filename, prep_data *data)
-{
- if (alloc_disk (filename, data->params[0], 0, 1) == -1)
- prep_error (data, filename, _("failed to allocate disk"));
-}
-
-static void
-prelaunch_part (const char *filename, prep_data *data)
-{
- if (alloc_disk (filename, data->params[0], 0, 1) == -1)
- prep_error (data, filename, _("failed to allocate disk"));
-}
-
-static void
-postlaunch_part (const char *filename, prep_data *data, const char *device)
-{
- if (guestfs_part_disk (g, device, data->params[1]) == -1)
- prep_error (data, filename, _("failed to partition disk: %s"),
- guestfs_last_error (g));
-}
-
-static void
-prelaunch_fs (const char *filename, prep_data *data)
-{
- if (alloc_disk (filename, data->params[1], 0, 1) == -1)
- prep_error (data, filename, _("failed to allocate disk"));
-}
-
-static void
-postlaunch_fs (const char *filename, prep_data *data, const char *device)
-{
- if (guestfs_part_disk (g, device, data->params[2]) == -1)
- prep_error (data, filename, _("failed to partition disk: %s"),
- guestfs_last_error (g));
-
- char *part;
- if (asprintf (&part, "%s1", device) == -1) {
- perror ("asprintf");
- exit (EXIT_FAILURE);
- }
-
- if (guestfs_mkfs (g, data->params[0], part) == -1)
- prep_error (data, filename, _("failed to create filesystem (%s): %s"),
- data->params[0], guestfs_last_error (g));
-
- free (part);
-}
git.annexia.org / libguestfs.git / blobdiff