Fix rtems_print_printer_fprintf()

We must use vfprintf().

2 files changed, 21 insertions, 3 deletions

diff --git a/cpukit/include/rtems/bspIo.h b/cpukit/include/rtems/bspIo.h
index 403b857e43..a7fd9590ee 100644
--- a/cpukit/include/rtems/bspIo.h
+++ b/cpukit/include/rtems/bspIo.h
@@ -144,7 +144,7 @@ typedef int (*rtems_print_plugin_t)(void *, const char *format, va_list ap);
 /**
  * @brief Reporting Methods printk() Plugin
  *
- * @param[in] context points to a user defined context.
+ * @param[in] context Unused.
  * @param[in] fmt is a printf()-style format string
  *
  * @return The number of characters printed.
@@ -157,13 +157,26 @@ extern int printk_plugin(void *context, const char *fmt, va_list ap);
  * This is a standard plug-in to support using printf() for output
  * instead of printk().
  *
- * @param[in] context points to a user defined context.
+ * @param[in] context Unused.
  * @param[in] fmt is a printf()-style format string
  *
  * @return The number of characters printed.
  */
 extern int rtems_printf_plugin(void *context, const char *fmt, va_list ap);
 
+/**
+ * @brief Reporting Methods fprintf() Plugin
+ *
+ * This is a standard plug-in to support using fprintf() for output
+ * instead of printk().
+ *
+ * @param[in] context The file stream.
+ * @param[in] fmt is a printf()-style format string
+ *
+ * @return The number of characters printed.
+ */
+extern int rtems_fprintf_plugin(void *context, const char *fmt, va_list ap);
+
 /**@}*/
 
 #ifdef __cplusplus
diff --git a/cpukit/libcsupport/src/print_fprintf.c b/cpukit/libcsupport/src/print_fprintf.c
index 5e46d1c959..757293e4c7 100644
--- a/cpukit/libcsupport/src/print_fprintf.c
+++ b/cpukit/libcsupport/src/print_fprintf.c
@@ -22,8 +22,13 @@
 
 #include <stdio.h>
 
+int rtems_fprintf_plugin(void *context, const char *fmt, va_list ap)
+{
+  return vfprintf(context, fmt, ap);
+}
+
 void rtems_print_printer_fprintf(rtems_printer *printer, FILE *file)
 {
   printer->context = file;
-  printer->printer = (rtems_print_plugin_t) fprintf;
+  printer->printer = rtems_fprintf_plugin;
 }