[PATCH 2/7] util: buffer: Use 'size_t' for buffer size variables

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Use size_t for all sizes. The '*' modifier unfortunately does require an
int so a temporary variable is necessary in the tests.

Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>
---
 src/util/virbuffer.c | 2 +-
 src/util/virbuffer.h | 6 +++---
 tests/virbuftest.c   | 4 +++-
 3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/util/virbuffer.c b/src/util/virbuffer.c
index 8bb9c8e1fa..2e1e4abead 100644
--- a/src/util/virbuffer.c
+++ b/src/util/virbuffer.c
@@ -339,7 +339,7 @@ virBufferCheckErrorInternal(const virBuffer *buf,
  *
  * Return the string usage in bytes
  */
-unsigned int
+size_t
 virBufferUse(const virBuffer *buf)
 {
     if (buf == NULL)
diff --git a/src/util/virbuffer.h b/src/util/virbuffer.h
index 16cd8515d6..18957ae02c 100644
--- a/src/util/virbuffer.h
+++ b/src/util/virbuffer.h
@@ -38,8 +38,8 @@ typedef virBuffer *virBufferPtr;
 # define VIR_BUFFER_INITIALIZER { 0, 0, 0, 0, NULL }

 struct _virBuffer {
-    unsigned int size;
-    unsigned int use;
+    size_t size;
+    size_t use;
     unsigned int error; /* errno value, or -1 for usage error */
     int indent;
     char *content;
@@ -69,7 +69,7 @@ VIR_DEFINE_AUTOCLEAN_FUNC(virBuffer, virBufferFreeAndReset);
 # define virBufferCheckError(buf) \
     virBufferCheckErrorInternal(buf, VIR_FROM_THIS, __FILE__, __FUNCTION__, \
     __LINE__)
-unsigned int virBufferUse(const virBuffer *buf);
+size_t virBufferUse(const virBuffer *buf);
 void virBufferAdd(virBufferPtr buf, const char *str, int len);
 void virBufferAddBuffer(virBufferPtr buf, virBufferPtr toadd);
 void virBufferAddChar(virBufferPtr buf, char c);
diff --git a/tests/virbuftest.c b/tests/virbuftest.c
index b608da94d4..778754d7c1 100644
--- a/tests/virbuftest.c
+++ b/tests/virbuftest.c
@@ -20,6 +20,7 @@ static int testBufInfiniteLoop(const void *data)
     char *addstr = NULL, *bufret = NULL;
     int ret = -1;
     const struct testInfo *info = data;
+    int len;

     virBufferAddChar(buf, 'a');

@@ -29,7 +30,8 @@ static int testBufInfiniteLoop(const void *data)
      * which was the case after the above addchar at the time of the bug.
      * This test is a bit fragile, since it relies on virBuffer internals.
      */
-    if (virAsprintf(&addstr, "%*s", buf->size - buf->use - 1, "a") < 0)
+    len = buf->size - buf->use - 1;
+    if (virAsprintf(&addstr, "%*s", len, "a") < 0)
         goto out;

     if (info->doEscape)
-- 
2.20.1

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