in_blob: fix glob function for win32

Signed-off-by: zshuang0316 <zshuang0316@163.com>

Author: zshuang0316

plugins/in_blob/win32_glob.c

@@ -150,6 +150,7 @@ static int glob(const char *path,
                 return result;
             }
         }
+        context->gl_pathc = entries;
     }
 
     return result;

tests/internal/CMakeLists.txt

@@ -81,6 +81,13 @@ if(FLB_HAVE_LIBYAML)
       )
 endif()
 
+if (WIN32)
+  set(UNIT_TESTS_FILES
+      ${UNIT_TESTS_FILES}
+      win32_glob.c
+      )
+endif()
+
 if (NOT WIN32)
   set(UNIT_TESTS_FILES
     ${UNIT_TESTS_FILES}

tests/internal/win32_glob.c

@@ -0,0 +1,74 @@
+#include <fluent-bit/flb_info.h>
+#include <fluent-bit/flb_mem.h>
+#include <fluent-bit/flb_str.h>
+#include "flb_tests_internal.h"
+
+#ifdef FLB_SYSTEM_WINDOWS
+#include "../../plugins/in_blob/win32_glob.c"
+
+void test_glob_basic()
+{
+    glob_t glob_data;
+    int ret;
+    FILE *fp;
+
+    /* Create some dummy files */
+    fp = fopen("test_glob_1.txt", "w");
+    if (fp) fclose(fp);
+    fp = fopen("test_glob_2.txt", "w");
+    if (fp) fclose(fp);
+
+    ret = glob("test_glob_*.txt", 0, NULL, &glob_data);
+    TEST_CHECK(ret == 0);
+    TEST_CHECK(glob_data.gl_pathc == 2);
+
+    globfree(&glob_data);
+
+    /* Cleanup */
+    unlink("test_glob_1.txt");
+    unlink("test_glob_2.txt");
+}
+
+void test_glob_nomatch()
+{
+    glob_t glob_data = {0};
+    int ret;
+
+    ret = glob("non_existent_*.txt", 0, NULL, &glob_data);
+    TEST_CHECK(ret == GLOB_NOMATCH);
+
+    globfree(&glob_data);
+}
+
+void test_glob_wildcard()
+{
+    glob_t glob_data;
+    int ret;
+    FILE *fp;
+
+    /* Create dummy file */
+    fp = fopen("test_wildcard.txt", "w");
+    if (fp) fclose(fp);
+
+    ret = glob("test_wild*.txt", 0, NULL, &glob_data);
+    TEST_CHECK(ret == 0);
+    TEST_CHECK(glob_data.gl_pathc == 1);
+    if (glob_data.gl_pathc > 0) {
+        TEST_CHECK(strstr(glob_data.gl_pathv[0], "test_wildcard.txt") != NULL);
+    }
+
+    globfree(&glob_data);
+    unlink("test_wildcard.txt");
+}
+
+TEST_LIST = {
+    { "basic", test_glob_basic },
+    { "nomatch", test_glob_nomatch },
+    { "wildcard", test_glob_wildcard },
+    { 0 }
+};
+#else
+TEST_LIST = {
+    { 0 }
+};
+#endif