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Luke Street
127 lines
2.6 KiB
C
127 lines
2.6 KiB
C
#pragma once
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#include <common.h>
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#include <stdarg.h>
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#define EOF (-1)
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#define F_PERM 1
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#define F_NORD 4
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#define F_NOWR 8
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#define F_EOF 16
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#define F_ERR 32
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#define F_SVB 64
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#define F_APP 128
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#define SEEK_SET 0
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#define SEEK_CUR 1
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#define SEEK_END 2
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// _IO_FILE definitions
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#define BUFSIZ 1024
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#define UNGET 8
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// Unsigned numbers
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#define PRIu32 "%u"
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#define PRIu64 "%llu"
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// Numbers as hex (ex. uint32_t)
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#define PRIx32 "%Xh"
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#define PRIx64 "%llXh"
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// Numbers as zero-padded hex (ex. uint32_t)
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#define PRIX32 "%08Xh"
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#define PRIX64 "%016llXh"
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#define PRIX64S "%08llXh" // 64-bit w/ 32-bit padding
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// Numerical pointers as zero-padded hex (ex. uintptr_t)
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#define PRIXUPTR "0x%08X"
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#define PRIXUPTR64 "0x%016llX"
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#define PRIXUPTR64S "0x%08llX" // 64-bit w/ 32-bit padding
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// Pointer value as zero-padded hex (ex. void *)
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#define PRIXPTR "%010P"
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typedef struct _IO_FILE FILE;
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struct _IO_FILE {
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unsigned flags;
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char *rpos, *rend;
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char *wend, *wpos, *wbase;
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size_t (*read)(FILE *, char *, size_t);
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size_t (*write)(FILE *, const char *, size_t);
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off_t (*seek)(FILE *, off_t, int);
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int (*close)(FILE *);
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char *buf;
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size_t buf_size;
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FILE *prev, *next;
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int fd;
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signed char mode; // 'r' or 'w' I guess
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signed char lbf; // Line buffer (format?)
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int lock;
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void *cookie;
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off_t off;
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};
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// TODO flesh out
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struct stat {
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off_t st_size;
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};
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extern FILE *stdin;
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extern FILE *stdout;
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extern FILE *stderr;
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// --- Internal
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int __towrite(FILE *f);
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size_t __fwritex(const char *restrict s, size_t l, FILE *restrict f);
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// --- File
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size_t fread(void *restrict dest, size_t size, size_t count, FILE *restrict f);
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size_t fwrite(const void *restrict src, size_t size, size_t count, FILE *restrict f);
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int fflush(FILE *f);
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FILE *fopen(const char *filename, const char *mode);
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int fclose(FILE *f);
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// int fstat(int fd, struct stat *st); FIXME once fds are implemented
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int stat(const char *filename, struct stat *st);
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int fseek(FILE *f, off_t off, int origin);
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long ftell(FILE *f);
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#define ferror(f) (f == NULL || !!(f->flags & F_ERR))
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#define feof(f) (!!(f->flags & F_EOF))
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// --- Print
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int printf(const char *restrict fmt, ...);
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int vprintf(const char *restrict fmt, va_list ap);
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int fprintf(FILE *restrict f, const char *restrict fmt, ...);
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int sprintf(char *restrict s, const char *restrict fmt, ...);
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int snprintf(char *restrict s, size_t n, const char *restrict fmt, ...);
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int vfprintf(FILE *restrict f, const char *restrict fmt, va_list ap);
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int vsprintf(char *restrict s, const char *restrict fmt, va_list ap);
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int vsnprintf(char *restrict s, size_t n, const char *restrict fmt, va_list ap); |