stdio: Replace FILE functions with filedescriptor functions

We have defined stdin, stdout and stderr as integer file descriptors,
but normally they should be FILE *. Also fprintf, fputc and fputs take
file descriptors instead of FILE *. As FILE * are inconvenient in the
barebox environment replace the f* functions with the corresponding d*
functions. dprintf is POSIX conform whereas dputc and dputs are barebox
specific, but do not conflict with any stdc function. fgetc is unused
and can be removed without replacing it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 5 insertions, 5 deletions

diff --git a/commands/echo.c b/commands/echo.c
index 7d47ab7ca7..8853ee0a30 100644
--- a/commands/echo.c
+++ b/commands/echo.c
@@ -27,7 +27,7 @@
 static int do_echo(int argc, char *argv[])
 {
 	int i, optind = 1;
-	int fd = stdout, opt, newline = 1;
+	int fd = STDOUT_FILENO, opt, newline = 1;
 	char *file = NULL;
 	int oflags = O_WRONLY | O_CREAT;
 	char str[CONFIG_CBSIZE];
@@ -81,17 +81,17 @@ exit_parse:
 
 	for (i = optind; i < argc; i++) {
 		if (i > optind)
-			fputc(fd, ' ');
+			dputc(fd, ' ');
 		if (process_escape) {
 			process_escape_sequence(argv[i], str, CONFIG_CBSIZE);
-			fputs(fd, str);
+			dputs(fd, str);
 		} else {
-			fputs(fd, argv[i]);
+			dputs(fd, argv[i]);
 		}
 	}
 
 	if (newline)
-		fputc(fd, '\n');
+		dputc(fd, '\n');
 
 	if (file)
 		close(fd);