Upload current libxunil, to be used as a submodule

include/stdio.h

@@ -0,0 +1,44 @@
+#pragma once
+#include <sys/types.h>
+#include <stddef.h>
+#include <stdarg.h>
+
+typedef struct FILE FILE;
+
+extern FILE *stdin;
+extern FILE *stdout;
+extern FILE *stderr;
+
+#define EOF (-1)
+
+#define SEEK_SET 0
+#define SEEK_CUR 1
+#define SEEK_END 2
+
+FILE  *fopen(const char *path, const char *mode);
+int    fclose(FILE *fp);
+size_t fread(void *ptr, size_t size, size_t nmemb, FILE *fp);
+size_t fwrite(const void *ptr, size_t size, size_t nmemb, FILE *fp);
+int    fseek(FILE *fp, long offset, int whence);
+long   ftell(FILE *fp);
+int    fflush(FILE *fp);
+char  *fgets(char *s, int size, FILE *fp);
+int    fputs(const char *s, FILE *fp);
+int    feof(FILE *fp);
+int    ferror(FILE *fp);
+int    remove(const char *path);
+int    rename(const char *path, const char *new_path);
+
+int    printf(const char *fmt, ...);
+int    puts(const char *s);
+int    putchar(int c);
+
+int    fprintf(FILE *fp, const char *fmt, ...);
+int    sprintf(char *buf, const char *fmt, ...);
+int    snprintf(char *buf, size_t size, const char *fmt, ...);
+int    vsnprintf(char *buf, size_t size, const char *fmt, va_list ap);
+int    vfprintf(FILE *fp, const char *fmt, va_list ap);
+ssize_t write(int fd, const void *buf, size_t count);
+void exit(int code);
+
+int    sscanf(const char *str, const char *format, ...);