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From: Kevin Wolf <kwolf@redhat.com>
To: qemu-devel@nongnu.org
Cc: kwolf@redhat.com
Subject: [Qemu-devel] [PULL 31/54] qemu-option: has_help_option() and is_valid_option_list()
Date: Fri, 21 Feb 2014 23:12:28 +0100	[thread overview]
Message-ID: <1393020771-32712-32-git-send-email-kwolf@redhat.com> (raw)
In-Reply-To: <1393020771-32712-1-git-send-email-kwolf@redhat.com>

has_help_option() checks if any help option ('help' or '?') occurs
anywhere in an option string, so that things like 'cluster_size=4k,help'
are recognised.

is_valid_option_list() ensures that the option list doesn't have options
with leading commas or trailing unescaped commas.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
---
 include/qemu/option.h |  2 ++
 util/qemu-option.c    | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 51 insertions(+)

diff --git a/include/qemu/option.h b/include/qemu/option.h
index 3ea871a..8c0ac34 100644
--- a/include/qemu/option.h
+++ b/include/qemu/option.h
@@ -79,6 +79,8 @@ void parse_option_size(const char *name, const char *value,
 void free_option_parameters(QEMUOptionParameter *list);
 void print_option_parameters(QEMUOptionParameter *list);
 void print_option_help(QEMUOptionParameter *list);
+bool has_help_option(const char *param);
+bool is_valid_option_list(const char *param);
 
 /* ------------------------------------------------------------------ */
 
diff --git a/util/qemu-option.c b/util/qemu-option.c
index fd76cd2..9d898af 100644
--- a/util/qemu-option.c
+++ b/util/qemu-option.c
@@ -450,6 +450,55 @@ fail:
     return NULL;
 }
 
+bool has_help_option(const char *param)
+{
+    size_t buflen = strlen(param) + 1;
+    char *buf = g_malloc0(buflen);
+    const char *p = param;
+    bool result = false;
+
+    while (*p) {
+        p = get_opt_value(buf, buflen, p);
+        if (*p) {
+            p++;
+        }
+
+        if (is_help_option(buf)) {
+            result = true;
+            goto out;
+        }
+    }
+
+out:
+    free(buf);
+    return result;
+}
+
+bool is_valid_option_list(const char *param)
+{
+    size_t buflen = strlen(param) + 1;
+    char *buf = g_malloc0(buflen);
+    const char *p = param;
+    bool result = true;
+
+    while (*p) {
+        p = get_opt_value(buf, buflen, p);
+        if (*p && !*++p) {
+            result = false;
+            goto out;
+        }
+
+        if (!*buf || *buf == ',') {
+            result = false;
+            goto out;
+        }
+    }
+
+out:
+    free(buf);
+    return result;
+}
+
 /*
  * Prints all options of a list that have a value to stdout
  */
-- 
1.8.1.4

  parent reply	other threads:[~2014-02-21 22:13 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-21 22:11 [Qemu-devel] [PULL 00/54] Block patches Kevin Wolf
2014-02-21 22:11 ` [Qemu-devel] [PULL 01/54] qcow2: Set zero flag for discarded clusters Kevin Wolf
2014-02-22  0:01   ` Eric Blake
2014-02-24  9:46     ` Kevin Wolf
2014-02-21 22:11 ` [Qemu-devel] [PULL 02/54] block: Fix bdrv_is_first_non_filter() Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 03/54] block: Change BDS parameter of bdrv_open() to ** Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 04/54] block: Add reference parameter to bdrv_open() Kevin Wolf
2014-02-23  1:04   ` Fam Zheng
2014-02-21 22:12 ` [Qemu-devel] [PULL 05/54] block: Make bdrv_file_open() static Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 06/54] block: Reuse reference handling from bdrv_open() Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 07/54] block: Remove bdrv_new() from bdrv_file_open() Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 08/54] block: Handle bs->options in bdrv_open() only Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 09/54] block: Reuse success path from bdrv_open() Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 10/54] block: Remove bdrv_open_image()'s force_raw option Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 11/54] nbd: produce a better error if neither host nor port is passed Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 12/54] nbd: correctly propagate errors Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 13/54] nbd: inline tcp_socket_incoming_spec into sole caller Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 14/54] nbd: move socket wrappers to qemu-nbd Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 15/54] iscsi: fix indentation Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 16/54] iscsi: correctly propagate errors in iscsi_open Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 17/54] gluster: default scheme to gluster:// and host to localhost Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 18/54] gluster: correctly propagate errors Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 19/54] cow: " Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 20/54] curl: " Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 21/54] qcow: " Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 22/54] qed: " Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 23/54] vhdx: " Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 24/54] vvfat: " Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 25/54] vmdk: extract vmdk_read_desc Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 26/54] vmdk: push vmdk_read_desc up to caller Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 27/54] vmdk: do not try opening a file as both image and descriptor Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 28/54] vmdk: correctly propagate errors Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 29/54] block: do not abuse EMEDIUMTYPE Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 30/54] vdi: say why an image is bad Kevin Wolf
2014-02-21 22:12 ` Kevin Wolf [this message]
2014-02-21 22:12 ` [Qemu-devel] [PULL 32/54] qemu-img create: Support multiple -o options Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 33/54] qemu-img convert: " Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 34/54] qemu-img amend: " Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 35/54] qemu-img: Allow -o help with incomplete argument list Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 36/54] qemu-iotests: Check qemu-img command line parsing Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 37/54] qemu-config: Sections must consist of keys Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 38/54] qdict: Extract non-QDicts in qdict_array_split() Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 39/54] check-qdict: Adjust test for qdict_array_split() Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 40/54] check-qdict: Test termination of qdict_array_split() Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 41/54] quorum: Create quorum.c, add QuorumChildRequest and QuorumAIOCB Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 42/54] quorum: Create BDRVQuorumState and BlkDriver and do init Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 43/54] quorum: Add quorum_aio_writev and its dependencies Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 44/54] blkverify: Extract qemu_iovec_clone() and qemu_iovec_compare() from blkverify Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 45/54] quorum: Add quorum_aio_readv Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 46/54] quorum: Add quorum mechanism Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 47/54] quorum: Add quorum_getlength() Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 48/54] quorum: Add quorum_invalidate_cache() Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 49/54] quorum: Add quorum_co_flush() Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 50/54] quorum: Implement recursive .bdrv_recurse_is_first_non_filter in quorum Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 51/54] quorum: Add quorum_open() and quorum_close() Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 52/54] quorum: Add unit test Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 53/54] quorum: Simplify quorum_open() Kevin Wolf
2014-02-21 22:12 ` [Qemu-devel] [PULL 54/54] iotests: Mixed quorum child device specifications Kevin Wolf
2014-02-25 11:53 ` [Qemu-devel] [PULL 00/54] Block patches Peter Maydell

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