Upload current libxunil, to be used as a submodule

include/inttypes.h

@@ -0,0 +1 @@
+#include <stdint.h>

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, ...);

include/stdlib.h

@@ -0,0 +1,24 @@
+#pragma once
+#include <inttypes.h>
+#include <stddef.h>
+
+void  *malloc(size_t size);
+void  *calloc(size_t nmemb, size_t size);
+void  *realloc(void *ptr, size_t size);
+void   free(void *ptr);
+
+void   exit(int status);
+void   abort(void);
+
+int    atoi(const char *s);
+long   atol(const char *s);
+double atof(const char *s);
+long   strtol(const char *s, char **endptr, int base);
+double strtod(const char *s, char **endptr);
+
+char  *getenv(const char *name);
+void   qsort(void *base, size_t nmemb, size_t size, int (*cmp)(const void *, const void *));
+int    abs(int x);
+int    system(const char *cmd);
+int    draw_pixel(uint32_t x, uint32_t y, uint32_t color);
+int    framebuffer_swap();

include/string.h

@@ -0,0 +1,22 @@
+#pragma once
+#include <stddef.h>
+
+void *memset(void *s, int c, size_t n);
+void *memcpy(void *dst, const void *src, size_t n);
+void *memmove(void *dst, const void *src, size_t n);
+int   memcmp(const void *s1, const void *s2, size_t n);
+void *memchr(const void *s, int c, size_t n);
+
+size_t strlen(const char *s);
+char  *strcpy(char *dst, const char *src);
+char  *strncpy(char *dst, const char *src, size_t n);
+char  *strcat(char *dst, const char *src);
+char  *strncat(char *dst, const char *src, size_t n);
+int    strcmp(const char *s1, const char *s2);
+int    strncmp(const char *s1, const char *s2, size_t n);
+char  *strchr(const char *s, int c);
+char  *strrchr(const char *s, int c);
+char  *strstr(const char *haystack, const char *needle);
+char  *strtok(char *str, const char *delim);
+char  *strdup(const char *s);
+char  *strerror(int errnum);

include/strings.h

@@ -0,0 +1,8 @@
+#pragma once
+#include <stddef.h>
+
+int    strcasecmp(const char *s1, const char *s2);
+int    strncasecmp(const char *s1, const char *s2, size_t n);
+void   bzero(void *s, size_t n);
+void   bcopy(const void *src, void *dest, size_t n);
+int    bcmp(const void *s1, const void *s2, size_t n);