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[libvirt] [PATCH v2 2/3] util: virqemu: introduce virQEMUBuildBufferEscape



This will eventually replace virQEMUBuildBufferEscapeComma, however
it's not possible right now.  Some parts of the code that uses the
old function needs to be refactored.

Signed-off-by: Pavel Hrdina <phrdina redhat com>
---
 src/libvirt_private.syms |  1 +
 src/util/virqemu.c       | 17 +++++++++++++++++
 src/util/virqemu.h       |  1 +
 3 files changed, 19 insertions(+)

diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 28e595fe58..dffc1f2a24 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -2298,6 +2298,7 @@ virProcessWait;
 
 
 # util/virqemu.h
+virQEMUBuildBufferEscape;
 virQEMUBuildBufferEscapeComma;
 virQEMUBuildCommandLineJSON;
 virQEMUBuildCommandLineJSONArrayBitmap;
diff --git a/src/util/virqemu.c b/src/util/virqemu.c
index 2e9e65f9ef..f10b356781 100644
--- a/src/util/virqemu.c
+++ b/src/util/virqemu.c
@@ -300,6 +300,23 @@ virQEMUBuildBufferEscapeComma(virBufferPtr buf, const char *str)
 
 
 /**
+ * virQEMUBuildBufferEscape:
+ * @buf: buffer to append the escaped string
+ * @str: the string to escape
+ *
+ * Some characters passed as values on the QEMU command line must be escaped.
+ *
+ *  - ',' must by escaped by ','
+ *  - '=' must by escaped by '\'
+ */
+void
+virQEMUBuildBufferEscape(virBufferPtr buf, const char *str)
+{
+    virBufferEscapeN(buf, "%s", str, ',', ",", '\\', "=", NULL);
+}
+
+
+/**
  * virQEMUBuildLuksOpts:
  * @buf: buffer to build the string into
  * @enc: pointer to encryption info
diff --git a/src/util/virqemu.h b/src/util/virqemu.h
index 539d62ab14..10aeb67f4e 100644
--- a/src/util/virqemu.h
+++ b/src/util/virqemu.h
@@ -50,6 +50,7 @@ char *virQEMUBuildObjectCommandlineFromJSON(const char *type,
 char *virQEMUBuildDriveCommandlineFromJSON(virJSONValuePtr src);
 
 void virQEMUBuildBufferEscapeComma(virBufferPtr buf, const char *str);
+void virQEMUBuildBufferEscape(virBufferPtr buf, const char *str);
 void virQEMUBuildLuksOpts(virBufferPtr buf,
                           virStorageEncryptionInfoDefPtr enc,
                           const char *alias)
-- 
2.11.1


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