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@linutronix.de --- 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) {