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https://github.com/Tom-on64/kern.git
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Implemented a proper libc
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@@ -0,0 +1,53 @@
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#include <stdio.h>
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#include <syscall.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stddef.h>
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FILE* stdin;
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FILE* stdout;
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FILE* stderr;
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void putc(char c) {
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// write(stdout, &c, 1); TODO: This doesn't work and we need to use a static variable
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static char _c;
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_c = c;
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write(1, &_c, 1);
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}
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char getc() {
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char* c = (char*)0x2100;
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*c= '\0';
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while (*c == '\0') { __asm__ volatile ("hlt"); }
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return *c;
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}
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void print(const char* s) {
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write(1, s, strlen(s));
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}
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void clear() {
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print("\x1b[J");
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}
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// Reads until a newline
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// TODO: Use Read() Syscall
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void reads(char* buffer) {
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char c;
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int len = 0;
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while ((c = getc()) != '\n') {
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if (c == '\b') {
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if (len < 1) continue; // Can we backspace?
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len--;
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putc(c);
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} else {
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buffer[len++] = c;
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putc(c);
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}
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}
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putc(c); // Print the newline
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buffer[len] = '\0'; // Null terminate
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}
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