Recast more internal string routines to use growable-strings

[exim.git] / src / src / debug.c

diff --git a/src/src/debug.c b/src/src/debug.c
index 4b076514758996fb50a997a05425706a26411a43..2423a3347e104376e686a1460592ac72a2d519d3 100644 (file)
--- a/src/src/debug.c
+++ b/src/src/debug.c
@@ -233,19 +233,27 @@ if (indent > 0)
 /* Use the checked formatting routine to ensure that the buffer
 does not overflow. Ensure there's space for a newline at the end. */
 
-if (!string_vformat(debug_ptr,
-     sizeof(debug_buffer) - (debug_ptr - debug_buffer) - 1, format, ap))
   {
-  uschar *s = US"**** debug string too long - truncated ****\n";
-  uschar *p = debug_buffer + Ustrlen(debug_buffer);
-  int maxlen = sizeof(debug_buffer) - Ustrlen(s) - 3;
-  if (p > debug_buffer + maxlen) p = debug_buffer + maxlen;
-  if (p > debug_buffer && p[-1] != '\n') *p++ = '\n';
-  Ustrcpy(p, s);
+  gstring gs = { .size = (int)sizeof(debug_buffer) - 1,
+               .ptr = debug_ptr - debug_buffer,
+               .s = debug_buffer };
+  if (!string_vformat(&gs, FALSE, format, ap))
+    {
+    uschar * s = US"**** debug string too long - truncated ****\n";
+    uschar * p = gs.s + gs.ptr;
+    int maxlen = gs.size - Ustrlen(s) - 2;
+    if (p > gs.s + maxlen) p = gs.s + maxlen;
+    if (p > gs.s && p[-1] != '\n') *p++ = '\n';
+    Ustrcpy(p, s);
+    while(*debug_ptr) debug_ptr++;
+    }
+  else
+    {
+    string_from_gstring(&gs);
+    debug_ptr = gs.s + gs.ptr;
+    }
   }
 
-while(*debug_ptr != 0) debug_ptr++;
-
 /* Output the line if it is complete. If we added any prefix data and there
 are internal newlines, make sure the prefix is on the continuation lines,
 as long as there is room in the buffer. We want to do just a single fprintf()