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blockdev: Replace drive_add()'s fmt, ... by optstr parameter

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Let the callers build the optstr.  Only one wants to.  All the others
become simpler, because they don't have to worry about escaping '%'.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Markus Armbruster 2011-01-31 11:50:09 +01:00 committed by Kevin Wolf
parent 4e5d9b578f
commit 5645b0f4f2
3 changed files with 15 additions and 21 deletions
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8
blockdev.c
View File

@ -93,17 +93,11 @@ QemuOpts *drive_def(const char *optstr)
}
QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file,
const char *fmt, ...)
const char *optstr)
{
va_list ap;
char optstr[1024];
QemuOpts *opts;
char buf[32];
va_start(ap, fmt);
vsnprintf(optstr, sizeof(optstr), fmt, ap);
va_end(ap);
opts = drive_def(optstr);
if (!opts) {
return NULL;

5
blockdev.h
View File

@ -47,10 +47,7 @@ DriveInfo *drive_get_by_blockdev(BlockDriverState *bs);
QemuOpts *drive_def(const char *optstr);
QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file,
const char *fmt, ...) /*GCC_FMT_ATTR(4, 5)*/;
/* GCC_FMT_ATTR() commented out to avoid the (pretty useless)
* "zero-length gnu_printf format string" warning we insist to
* enable */
const char *optstr);
DriveInfo *drive_init(QemuOpts *arg, int default_to_scsi, int *fatal_error);
/* device-hotplug */

13
vl.c
View File

@ -621,7 +621,6 @@ static int bt_parse(const char *opt)
/***********************************************************/
/* QEMU Block devices */
/* Any % in the following strings must be escaped as %% */
#define HD_OPTS "media=disk"
#define CDROM_OPTS "media=cdrom"
#define FD_OPTS ""
@ -2050,17 +2049,21 @@ int main(int argc, char **argv, char **envp)
initrd_filename = optarg;
break;
case QEMU_OPTION_hda:
{
char buf[256];
if (cyls == 0)
hda_opts = drive_add(IF_DEFAULT, 0, optarg, HD_OPTS);
snprintf(buf, sizeof(buf), "%s", HD_OPTS);
else
hda_opts = drive_add(IF_DEFAULT, 0, optarg, HD_OPTS
",cyls=%d,heads=%d,secs=%d%s",
cyls, heads, secs,
snprintf(buf, sizeof(buf),
"%s,cyls=%d,heads=%d,secs=%d%s",
HD_OPTS , cyls, heads, secs,
translation == BIOS_ATA_TRANSLATION_LBA ?
",trans=lba" :
translation == BIOS_ATA_TRANSLATION_NONE ?
",trans=none" : "");
drive_add(IF_DEFAULT, 0, optarg, buf);
break;
}
case QEMU_OPTION_hdb:
case QEMU_OPTION_hdc:
case QEMU_OPTION_hdd: