dprintf() and vdprintf() are printf() variants printing directly into a
filedescriptor. As FILE in nolibc is based directly on filedescriptors,
the implementation is trivial.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>
---
tools/include/nolibc/stdio.h | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/tools/include/nolibc/stdio.h b/tools/include/nolibc/stdio.h
index b32b8b794015276ab6242c2be18f860c095f90a3..262d0da4da9062e0c83b55661b2509f36548cf88 100644
--- a/tools/include/nolibc/stdio.h
+++ b/tools/include/nolibc/stdio.h
@@ -351,6 +351,30 @@ int printf(const char *fmt, ...)
return ret;
}
+static __attribute__((unused, format(printf, 2, 0)))
+int vdprintf(int fd, const char *fmt, va_list args)
+{
+ FILE *stream;
+
+ stream = fdopen(fd, NULL);
+ if (!stream)
+ return -1;
+ /* Technically 'stream' is leaked, but as it's only a wrapper around 'fd' that is fine */
+ return vfprintf(stream, fmt, args);
+}
+
+static __attribute__((unused, format(printf, 2, 3)))
+int dprintf(int fd, const char *fmt, ...)
+{
+ va_list args;
+ int ret;
+
+ va_start(args, fmt);
+ ret = vdprintf(fd, fmt, args);
+ va_end(args);
+ return ret;
+}
+
static __attribute__((unused))
int vsscanf(const char *str, const char *format, va_list args)
{
--
2.48.1
