Almost finished stdio.h

2024-10-25 18:11:10 +02:00
parent 57bfddc65e
commit ad5bf2baab
6 changed files with 259 additions and 8 deletions
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <syscall.h>
+
+int getchar(void) { return getc(stdin); }
+int putchar(int c) { return putc(stdout); }
+
+int getc(FILE* stream) {
+    if (!stream) { return EOF; }
+
+    unsigned char ch;
+    ssize_t res = read(stream->_file, &ch, 1);
+    if (res <= 0) { return EOF; }
+
+    return (int)ch;
+}
+
+int putc(int c, FILE* stream) {
+    if (!stream) { return EOF; }
+
+    unsigned char ch = (unsigned char)c;
+    ssize_t res = write(stream->_file, &c, 1);
+    if (res <= 0) { return EOF; }
+
+    return (int)ch;
+}
+
+// TODO:
+int ungetc(int c, FILE* stream) { return EOF; }
+