tasks a-s

Task/Record-sound/C/record-sound.c

@@ -0,0 +1,30 @@
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <fcntl.h>
+
+void * record(size_t bytes)
+{
+	int fd;
+	if (-1 == (fd = open("/dev/dsp", O_RDONLY))) return 0;
+	void *a = malloc(bytes);
+	read(fd, a, bytes);
+	close(fd);
+	return a;
+}
+
+int play(void *buf, size_t len)
+{
+	int fd;
+	if (-1 == (fd = open("/dev/dsp", O_WRONLY))) return 0;
+	write(fd, buf, len);
+	close(fd);
+	return 1;
+}
+
+int main()
+{
+	void *p = record(65536);
+	play(p, 65536);
+	return 0;
+}