From d058fe03e53699b5a85db1ea36edcf59273775a8 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Fri, 31 Jul 2009 12:25:36 +0200 Subject: 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 Signed-off-by: Anthony Liguori Message-Id: --- qemu-config.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) (limited to 'qemu-config.c') 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; +} + -- cgit v1.2.3-65-gdbad