1 files changed, 34 insertions, 23 deletions

diff --git a/Utilities/cmcurl/lib/mprintf.c b/Utilities/cmcurl/lib/mprintf.c
index 80735be..c681248 100644
--- a/Utilities/cmcurl/lib/mprintf.c
+++ b/Utilities/cmcurl/lib/mprintf.c
@@ -9,7 +9,7 @@
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
- * are also available at https://curl.haxx.se/docs/copyright.html.
+ * are also available at https://curl.se/docs/copyright.html.
  *
  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
  * copies of the Software, and permit persons to whom the Software is
@@ -99,12 +99,12 @@ static const char lower_digits[] = "0123456789abcdefghijklmnopqrstuvwxyz";
 /* Upper-case digits.  */
 static const char upper_digits[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 
-#define OUTCHAR(x) \
-  do{ \
+#define OUTCHAR(x)                                     \
+  do {                                                 \
     if(stream((unsigned char)(x), (FILE *)data) != -1) \
-      done++; \
-    else \
-     return done; /* return immediately on failure */ \
+      done++;                                          \
+    else                                               \
+      return done; /* return immediately on failure */ \
   } while(0)
 
 /* Data type to read from the arglist */
@@ -169,7 +169,7 @@ struct nsprintf {
 };
 
 struct asprintf {
-  struct dynbuf b;
+  struct dynbuf *b;
   bool fail; /* if an alloc has failed and thus the output is not the complete
                 data */
 };
@@ -878,7 +878,7 @@ static int dprintf_formatf(
               OUTCHAR(' ');
           for(point = strnil; *point != '\0'; ++point)
             OUTCHAR(*point);
-          if(! (p->flags & FLAGS_LEFT))
+          if(!(p->flags & FLAGS_LEFT))
             while(width-- > 0)
               OUTCHAR(' ');
         }
@@ -1042,50 +1042,61 @@ static int alloc_addbyter(int output, FILE *data)
   struct asprintf *infop = (struct asprintf *)data;
   unsigned char outc = (unsigned char)output;
 
-  if(Curl_dyn_addn(&infop->b, &outc, 1)) {
+  if(Curl_dyn_addn(infop->b, &outc, 1)) {
     infop->fail = 1;
     return -1; /* fail */
   }
   return outc; /* fputc() returns like this on success */
 }
 
-char *curl_maprintf(const char *format, ...)
+extern int Curl_dyn_vprintf(struct dynbuf *dyn,
+                            const char *format, va_list ap_save);
+
+/* appends the formatted string, returns 0 on success, 1 on error */
+int Curl_dyn_vprintf(struct dynbuf *dyn, const char *format, va_list ap_save)
 {
-  va_list ap_save; /* argument pointer */
   int retcode;
   struct asprintf info;
-  Curl_dyn_init(&info.b, DYN_APRINTF);
+  info.b = dyn;
   info.fail = 0;
 
-  va_start(ap_save, format);
   retcode = dprintf_formatf(&info, alloc_addbyter, format, ap_save);
-  va_end(ap_save);
   if((-1 == retcode) || info.fail) {
-    Curl_dyn_free(&info.b);
-    return NULL;
+    Curl_dyn_free(info.b);
+    return 1;
   }
-  if(Curl_dyn_len(&info.b))
-    return Curl_dyn_ptr(&info.b);
-  return strdup("");
+  return 0;
 }
 
 char *curl_mvaprintf(const char *format, va_list ap_save)
 {
   int retcode;
   struct asprintf info;
-  Curl_dyn_init(&info.b, DYN_APRINTF);
+  struct dynbuf dyn;
+  info.b = &dyn;
+  Curl_dyn_init(info.b, DYN_APRINTF);
   info.fail = 0;
 
   retcode = dprintf_formatf(&info, alloc_addbyter, format, ap_save);
   if((-1 == retcode) || info.fail) {
-    Curl_dyn_free(&info.b);
+    Curl_dyn_free(info.b);
     return NULL;
   }
-  if(Curl_dyn_len(&info.b))
-    return Curl_dyn_ptr(&info.b);
+  if(Curl_dyn_len(info.b))
+    return Curl_dyn_ptr(info.b);
   return strdup("");
 }
 
+char *curl_maprintf(const char *format, ...)
+{
+  va_list ap_save;
+  char *s;
+  va_start(ap_save, format);
+  s = curl_mvaprintf(format, ap_save);
+  va_end(ap_save);
+  return s;
+}
+
 static int storebuffer(int output, FILE *data)
 {
   char **buffer = (char **)data;