8 #include <klibc/extern.h>
13 /* This structure doesn't really exist, but it gives us something
14 to define FILE * with */
16 typedef struct _IO_file FILE;
18 #define stdin ((FILE *)0)
19 #define stdout ((FILE *)1)
20 #define stderr ((FILE *)2)
35 * Convert between a FILE * and a file descriptor. We don't actually
36 * have any in-memory data, so we just abuse the pointer itself to
37 * hold the data. Note, however, that for file descriptors, -1 is
38 * error and 0 is a valid value; for FILE *, NULL (0) is error and
41 static __inline__ int fileno(FILE *__f)
43 /* This should really be intptr_t, but size_t should be the same size */
44 return (int)(size_t)__f - 1;
47 static __inline__ FILE * __create_file(int __fd)
49 return (FILE *)(size_t)(__fd + 1);
52 __extern FILE *fopen(const char *, const char *);
54 static __inline__ FILE *fdopen(int __fd, const char *__m)
56 (void)__m; return __create_file(__fd);
58 static __inline__ int fclose(FILE *__f)
60 extern int close(int);
61 return close(fileno(__f));
63 static __inline__ int fseek(FILE *__f, off_t __o, int __w)
65 extern off_t lseek(int, off_t, int);
66 return (lseek(fileno(__f), __o, __w) == (off_t)-1) ? -1 : 0;
68 static __inline__ off_t ftell(FILE *__f)
70 extern off_t lseek(int, off_t, int);
71 return lseek(fileno(__f), 0, SEEK_CUR);
74 __extern int fputs(const char *, FILE *);
75 __extern int puts(const char *);
76 __extern int fputc(int, FILE *);
77 #define putc(c,f) fputc((c),(f))
78 #define putchar(c) fputc((c),stdout)
80 __extern int fgetc(FILE *);
81 __extern char * fgets(char *, int, FILE *);
82 #define getc(f) fgetc(f)
84 __extern size_t _fread(void *, size_t, FILE *);
85 __extern size_t _fwrite(const void *, size_t, FILE *);
87 #ifndef __NO_FREAD_FWRITE_INLINES
88 extern __inline__ size_t
89 fread(void *__p, size_t __s, size_t __n, FILE *__f)
91 return _fread(__p, __s*__n, __f)/__s;
94 extern __inline__ size_t
95 fwrite(void *__p, size_t __s, size_t __n, FILE *__f)
97 return _fwrite(__p, __s*__n, __f)/__s;
101 __extern int printf(const char *, ...);
102 __extern int vprintf(const char *, va_list);
103 __extern int fprintf(FILE *, const char *, ...);
104 __extern int vfprintf(FILE *, const char *, va_list);
105 __extern int sprintf(char *, const char *, ...);
106 __extern int vsprintf(char *, const char *, va_list);
107 __extern int snprintf(char *, size_t n, const char *, ...);
108 __extern int vsnprintf(char *, size_t n, const char *, va_list);
110 __extern int sscanf(const char *, const char *, ...);
111 __extern int vsscanf(const char *, const char *, va_list);
113 __extern void perror(const char *);
115 __extern int rename(const char *, const char *);
117 #endif /* _STDIO_H */