1 files changed, 51 insertions, 0 deletions
diff --git a/src/libnetdata/spawn_server/spawn_library.c b/src/libnetdata/spawn_server/spawn_library.c
new file mode 100644
index 000000000..bdf64544c
--- /dev/null
+++ b/src/libnetdata/spawn_server/spawn_library.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "spawn_library.h"
+
+BUFFER *argv_to_cmdline_buffer(const char **argv) {
+    BUFFER *wb = buffer_create(0, NULL);
+
+    for(size_t i = 0; argv[i] ;i++) {
+        const char *s = argv[i];
+        size_t len = strlen(s);
+        buffer_need_bytes(wb, len * 2 + 1);
+
+        bool needs_quotes = false;
+        for(const char *c = s; !needs_quotes && *c ; c++) {
+            switch(*c) {
+                case ' ':
+                case '\v':
+                case '\t':
+                case '\n':
+                case '"':
+                    needs_quotes = true;
+                    break;
+
+                default:
+                    break;
+            }
+        }
+
+        if(needs_quotes && buffer_strlen(wb))
+            buffer_strcat(wb, " \"");
+        else if(buffer_strlen(wb))
+            buffer_putc(wb, ' ');
+
+        for(const char *c = s; *c ; c++) {
+            switch(*c) {
+                case '"':
+                    buffer_putc(wb, '\\');
+                    // fall through
+
+                default:
+                    buffer_putc(wb, *c);
+                    break;
+            }
+        }
+
+        if(needs_quotes)
+            buffer_strcat(wb, "\"");
+    }
+
+    return wb;
+}