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authorGerd Hoffmann <kraxel@redhat.com>2009-07-31 12:25:36 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2009-08-10 13:05:26 -0500
commitd058fe03e53699b5a85db1ea36edcf59273775a8 (patch)
treea3c098a7931ff36df0e564709b06ccc255f456ce /qemu-config.c
parent7282a0331f11edd021efa3687dc2ec7fd557ace9 (diff)
QemuOpts: add -set option
One use case will be file for drives (no filename quoting issues), i.e. -drive id=test,if=virtio -set drive.test.file=/vmdisk/test-virtio.img It will work for any other option (assuming handled by QemuOpts) though. Except for id= for obvious reasons ;). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Message-Id:
Diffstat (limited to 'qemu-config.c')
-rw-r--r--qemu-config.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/qemu-config.c b/qemu-config.c
index 786f055d0..bcfb6eb6e 100644
--- a/qemu-config.c
+++ b/qemu-config.c
@@ -71,3 +71,44 @@ QemuOptsList qemu_drive_opts = {
},
};
+static QemuOptsList *lists[] = {
+ &qemu_drive_opts,
+ NULL,
+};
+
+int qemu_set_option(const char *str)
+{
+ char group[64], id[64], arg[64];
+ QemuOpts *opts;
+ int i, rc, offset;
+
+ rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
+ if (rc < 3 || str[offset] != '=') {
+ fprintf(stderr, "can't parse: \"%s\"\n", str);
+ return -1;
+ }
+
+ for (i = 0; lists[i] != NULL; i++) {
+ if (strcmp(lists[i]->name, group) == 0)
+ break;
+ }
+ if (lists[i] == NULL) {
+ fprintf(stderr, "there is no option group \"%s\"\n", group);
+ return -1;
+ }
+
+ opts = qemu_opts_find(lists[i], id);
+ if (!opts) {
+ fprintf(stderr, "there is no %s \"%s\" defined\n",
+ lists[i]->name, id);
+ return -1;
+ }
+
+ if (-1 == qemu_opt_set(opts, arg, str+offset+1)) {
+ fprintf(stderr, "failed to set \"%s\" for %s \"%s\"\n",
+ arg, lists[i]->name, id);
+ return -1;
+ }
+ return 0;
+}
+