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authorHarsh Prateek Bora <harsh@linux.vnet.ibm.com>2010-10-18 15:36:36 +0530
committerAnthony Liguori <aliguori@us.ibm.com>2010-10-20 12:10:58 -0500
commit9f506893a454ce24263aba49594aa953e9a52853 (patch)
tree9decd82cbe79795c2cd8a2f6e8b4c4572884c59a /fsdev/qemu-fsdev.c
parent70fc55ebe4fe5e72802468f16ae09169cf323b04 (diff)
[virtio-9p] Qemu 9p commandline options validity checks
Signed-off-by: Harsh Prateek Bora <harsh@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Diffstat (limited to 'fsdev/qemu-fsdev.c')
-rw-r--r--fsdev/qemu-fsdev.c48
1 files changed, 31 insertions, 17 deletions
diff --git a/fsdev/qemu-fsdev.c b/fsdev/qemu-fsdev.c
index 280b8f57b9..0b332907bd 100644
--- a/fsdev/qemu-fsdev.c
+++ b/fsdev/qemu-fsdev.c
@@ -29,35 +29,47 @@ int qemu_fsdev_add(QemuOpts *opts)
{
struct FsTypeListEntry *fsle;
int i;
+ const char *fsdev_id = qemu_opts_id(opts);
+ const char *fstype = qemu_opt_get(opts, "fstype");
+ const char *path = qemu_opt_get(opts, "path");
+ const char *sec_model = qemu_opt_get(opts, "security_model");
- if (qemu_opts_id(opts) == NULL) {
+ if (!fsdev_id) {
fprintf(stderr, "fsdev: No id specified\n");
return -1;
}
- for (i = 0; i < ARRAY_SIZE(FsTypes); i++) {
- if (strcmp(FsTypes[i].name, qemu_opt_get(opts, "fstype")) == 0) {
- break;
+ if (fstype) {
+ for (i = 0; i < ARRAY_SIZE(FsTypes); i++) {
+ if (strcmp(FsTypes[i].name, fstype) == 0) {
+ break;
+ }
}
- }
- if (i == ARRAY_SIZE(FsTypes)) {
- fprintf(stderr, "fsdev: fstype %s not found\n",
- qemu_opt_get(opts, "fstype"));
+ if (i == ARRAY_SIZE(FsTypes)) {
+ fprintf(stderr, "fsdev: fstype %s not found\n", fstype);
+ return -1;
+ }
+ } else {
+ fprintf(stderr, "fsdev: No fstype specified\n");
return -1;
}
- if (qemu_opt_get(opts, "security_model") == NULL) {
+ if (!sec_model) {
fprintf(stderr, "fsdev: No security_model specified.\n");
return -1;
}
+ if (!path) {
+ fprintf(stderr, "fsdev: No path specified.\n");
+ return -1;
+ }
+
fsle = qemu_malloc(sizeof(*fsle));
- fsle->fse.fsdev_id = qemu_strdup(qemu_opts_id(opts));
- fsle->fse.path = qemu_strdup(qemu_opt_get(opts, "path"));
- fsle->fse.security_model = qemu_strdup(qemu_opt_get(opts,
- "security_model"));
+ fsle->fse.fsdev_id = qemu_strdup(fsdev_id);
+ fsle->fse.path = qemu_strdup(path);
+ fsle->fse.security_model = qemu_strdup(sec_model);
fsle->fse.ops = FsTypes[i].ops;
QTAILQ_INSERT_TAIL(&fstype_entries, fsle, next);
@@ -67,11 +79,13 @@ int qemu_fsdev_add(QemuOpts *opts)
FsTypeEntry *get_fsdev_fsentry(char *id)
{
- struct FsTypeListEntry *fsle;
+ if (id) {
+ struct FsTypeListEntry *fsle;
- QTAILQ_FOREACH(fsle, &fstype_entries, next) {
- if (strcmp(fsle->fse.fsdev_id, id) == 0) {
- return &fsle->fse;
+ QTAILQ_FOREACH(fsle, &fstype_entries, next) {
+ if (strcmp(fsle->fse.fsdev_id, id) == 0) {
+ return &fsle->fse;
+ }
}
}
return NULL;