Bugzilla #1865, https://bugs.freedesktop.org/show_bug.cgi?id=1865 Added

    X(NF)printf and X(NF)vprintf functions which allocate the buffer with
    X(NF)alloc
Bugzilla #1865, https://bugs.freedesktop.org/show_bug.cgi?id=1865 extend
    snprintf to work on NULL.

1 files changed, 64 insertions, 0 deletions

diff --git a/os/xprintf.c b/os/xprintf.c
new file mode 100644
index 000000000..49279c102
--- /dev/null
+++ b/os/xprintf.c
@@ -0,0 +1,64 @@
+#include "Xos.h"
+#include "os.h"
+#include <stdarg.h>
+#include <stdio.h>
+    
+char *
+Xvprintf(const char *format, va_list va)
+{
+    char *ret;
+    int size;
+    va_list va2;
+
+    va_copy(va2, va);
+    size = vsnprintf(NULL, 0, format, va2);
+    va_end(va2);
+
+    ret = (char *)Xalloc(size + 1);
+    if (ret == NULL)
+        return NULL;
+
+    vsnprintf(ret, size + 1, format, va);
+    ret[size] = 0;
+    return ret;
+}
+
+char *Xprintf(const char *format, ...)
+{
+    char *ret;
+    va_list va;
+    va_start(va, format);
+    ret = Xvprintf(format, va);
+    va_end(va);
+    return ret;
+}
+
+char *
+XNFvprintf(const char *format, va_list va)
+{
+    char *ret;
+    int size;
+    va_list va2;
+
+    va_copy(va2, va);
+    size = vsnprintf(NULL, 0, format, va2);
+    va_end(va2);
+
+    ret = (char *)XNFalloc(size + 1);
+    if (ret == NULL)
+        return NULL;
+
+    vsnprintf(ret, size + 1, format, va);
+    ret[size] = 0;
+    return ret;
+}
+
+char *XNFprintf(const char *format, ...)
+{
+    char *ret;
+    va_list va;
+    va_start(va, format);
+    ret = XNFvprintf(format, va);
+    va_end(va);
+    return ret;
+}