1 files changed, 94 insertions, 0 deletions
diff --git a/vere/ext/nasm/nasmlib/asprintf.c b/vere/ext/nasm/nasmlib/asprintf.c
new file mode 100644
index 0000000..0b8e49d
--- /dev/null
+++ b/vere/ext/nasm/nasmlib/asprintf.c
@@ -0,0 +1,94 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 1996-2018 The NASM Authors - All Rights Reserved
+ *   See the file AUTHORS included with the NASM distribution for
+ *   the specific copyright holders.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following
+ *   conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ *     copyright notice, this list of conditions and the following
+ *     disclaimer in the documentation and/or other materials provided
+ *     with the distribution.
+ *
+ *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ----------------------------------------------------------------------- */
+
+#include "compiler.h"
+#include "nasmlib.h"
+#include "alloc.h"
+
+/*
+ * nasm_[v]asprintf() are variants of the semi-standard [v]asprintf()
+ * functions, except that we return the pointer instead of a count.
+ * The length of the string (with or without the final NUL) is available
+ * by calling nasm_last_string_{len,size}() afterwards.
+ *
+ * nasm_[v]axprintf() are similar, but allocates a user-defined amount
+ * of storage before the string, and returns a pointer to the
+ * allocated buffer. The size of that area is not included in the value
+ * returned by nasm_last_string_size().
+ */
+
+void *nasm_vaxprintf(size_t extra, const char *fmt, va_list ap)
+{
+    char *strp;
+    va_list xap;
+    size_t bytes;
+
+    va_copy(xap, ap);
+    bytes = vsnprintf(NULL, 0, fmt, xap) + 1;
+    _nasm_last_string_size = bytes;
+    va_end(xap);
+
+    strp = nasm_malloc(extra+bytes);
+    memset(strp, 0, extra);
+    vsnprintf(strp+extra, bytes, fmt, ap);
+    return strp;
+}
+
+char *nasm_vasprintf(const char *fmt, va_list ap)
+{
+    return nasm_vaxprintf(0, fmt, ap);
+}
+
+void *nasm_axprintf(size_t extra, const char *fmt, ...)
+{
+    va_list ap;
+    void *strp;
+
+    va_start(ap, fmt);
+    strp = nasm_vaxprintf(extra, fmt, ap);
+    va_end(ap);
+
+    return strp;
+}
+
+char *nasm_asprintf(const char *fmt, ...)
+{
+    va_list ap;
+    char *strp;
+
+    va_start(ap, fmt);
+    strp = nasm_vaxprintf(0, fmt, ap);
+    va_end(ap);
+
+    return strp;
+}