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authorDavid Woodhouse <dwmw2@infradead.org>2007-08-01 14:23:57 +0400
committerDavid Woodhouse <dwmw2@infradead.org>2007-08-01 14:23:57 +0400
commit440fdb53b4ae58602711b5b8c3a139ace2404dbb (patch)
treec6fb88d6ad537ec53aeecadc75a61ab6147d4c9c /lib/kasprintf.c
parent8b2b403ce0f1a816b7a6a4f47c8798003b26c07a (diff)
parent8d4fbcfbe0a4bfc73e7f0297c59ae514e1f1436f (diff)
downloadlinux-440fdb53b4ae58602711b5b8c3a139ace2404dbb.tar.xz
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'lib/kasprintf.c')
-rw-r--r--lib/kasprintf.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/lib/kasprintf.c b/lib/kasprintf.c
new file mode 100644
index 000000000000..c5ff1fd10030
--- /dev/null
+++ b/lib/kasprintf.c
@@ -0,0 +1,44 @@
+/*
+ * linux/lib/kasprintf.c
+ *
+ * Copyright (C) 1991, 1992 Linus Torvalds
+ */
+
+#include <stdarg.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/string.h>
+
+/* Simplified asprintf. */
+char *kvasprintf(gfp_t gfp, const char *fmt, va_list ap)
+{
+ unsigned int len;
+ char *p;
+ va_list aq;
+
+ va_copy(aq, ap);
+ len = vsnprintf(NULL, 0, fmt, aq);
+ va_end(aq);
+
+ p = kmalloc(len+1, gfp);
+ if (!p)
+ return NULL;
+
+ vsnprintf(p, len+1, fmt, ap);
+
+ return p;
+}
+EXPORT_SYMBOL(kvasprintf);
+
+char *kasprintf(gfp_t gfp, const char *fmt, ...)
+{
+ va_list ap;
+ char *p;
+
+ va_start(ap, fmt);
+ p = kvasprintf(gfp, fmt, ap);
+ va_end(ap);
+
+ return p;
+}
+EXPORT_SYMBOL(kasprintf);