use C99 language features for C99 library functions

4 files changed, 27 insertions, 25 deletions

diff --git a/src/stdio/snprintf.c b/src/stdio/snprintf.c
index 44bb65fe..a6896c8a 100644
--- a/src/stdio/snprintf.c
+++ b/src/stdio/snprintf.c
@@ -4,15 +4,17 @@
 
 int snprintf(char * restrict s, size_t n, const char * restrict format, ...)
 {
-	int ret = 0;
+	struct io_options opt = {
+		.fnname = __func__,
+		.string = s,
+		.maxlen = n,
+	};
+
 	va_list ap;
-	struct io_options opt = {0};
-	opt.fnname = __func__;
-	opt.string = s;
-	opt.maxlen = n;
 	va_start(ap, format);
-	ret = __printf(&opt, format, ap);
+	int ret = __printf(&opt, format, ap);
 	va_end(ap);
+
 	return ret;
 }
 
diff --git a/src/stdio/vfscanf.c b/src/stdio/vfscanf.c
index ad9f5614..99053885 100644
--- a/src/stdio/vfscanf.c
+++ b/src/stdio/vfscanf.c
@@ -3,12 +3,12 @@
 
 int vfscanf(FILE * restrict stream, const char * restrict format, va_list arg)
 {
-	int ret = 0;
-	struct io_options opt = {0};
-	opt.fnname = __func__;
-	opt.stream = stream;
-	ret = __scanf(&opt, format, arg);
-	return ret;
+        struct io_options opt = {
+                .fnname = __func__,
+                .stream = stream,
+        };
+
+        return __scanf(&opt, format, arg);
 }
 
 /*
diff --git a/src/stdio/vsnprintf.c b/src/stdio/vsnprintf.c
index 62963b2c..92753a90 100644
--- a/src/stdio/vsnprintf.c
+++ b/src/stdio/vsnprintf.c
@@ -4,13 +4,13 @@
 
 int vsnprintf(char * restrict s, size_t n, const char *format, va_list arg)
 {
-	int ret = 0;
-	struct io_options opt = {0};
-	opt.fnname = "fprintf";
-	opt.string = s;
-	opt.maxlen = n;
-	ret = __printf(&opt, format, arg);
-	return ret;
+	struct io_options opt = {
+		.fnname = __func__,
+		.string = s,
+		.maxlen = n,
+	};
+
+	return __printf(&opt, format, arg);
 }
 
 /*
diff --git a/src/stdio/vsscanf.c b/src/stdio/vsscanf.c
index 2573b213..dcf40db8 100644
--- a/src/stdio/vsscanf.c
+++ b/src/stdio/vsscanf.c
@@ -4,12 +4,12 @@
 
 int vsscanf(const char * restrict s, const char * restrict format, va_list arg)
 {
-	int ret = 0;
-	struct io_options opt = {0};
-	opt.fnname = __func__;
-	opt.string = (char*)s;
-	ret = __scanf(&opt, format, arg);
-	return ret;
+	struct io_options opt = {
+		.fnname = __func__,
+		.string = (char*)s,
+	};
+
+	return __scanf(&opt, format, arg);
 }
 
 /*