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;
31 * Convert between a FILE * and a file descriptor. We don't actually
32 * have any in-memory data, so we just abuse the pointer itself to
33 * hold the data. Note, however, that for file descriptors, -1 is
34 * error and 0 is a valid value; for FILE *, NULL (0) is error and
37 static __inline__ int fileno(FILE *__f)
39 /* This should really be intptr_t, but size_t should be the same size */
40 return (int)(size_t)__f - 1;
43 /* This is a macro so it can be used as initializer */
44 #define __create_file(__fd) ((FILE *)(size_t)((__fd) + 1))
46 #define stdin __create_file(0)
47 #define stdout __create_file(1)
48 #define stderr __create_file(2)
50 __extern FILE *fopen(const char *, const char *);
52 static __inline__ FILE *fdopen(int __fd, const char *__m)
54 (void)__m; return __create_file(__fd);
56 static __inline__ int fclose(FILE *__f)
58 extern int close(int);
59 return close(fileno(__f));
61 static __inline__ int fseek(FILE *__f, off_t __o, int __w)
63 extern off_t lseek(int, off_t, int);
64 return (lseek(fileno(__f), __o, __w) == (off_t)-1) ? -1 : 0;
66 static __inline__ off_t ftell(FILE *__f)
68 extern off_t lseek(int, off_t, int);
69 return lseek(fileno(__f), 0, SEEK_CUR);
72 __extern int fputs(const char *, FILE *);
73 __extern int puts(const char *);
74 __extern int fputc(int, FILE *);
75 #define putc(c,f) fputc((c),(f))
76 #define putchar(c) fputc((c),stdout)
78 __extern int fgetc(FILE *);
79 __extern char * fgets(char *, int, FILE *);
80 #define getc(f) fgetc(f)
82 __extern size_t _fread(void *, size_t, FILE *);
83 __extern size_t _fwrite(const void *, size_t, FILE *);
85 #ifndef __NO_FREAD_FWRITE_INLINES
86 extern __inline__ size_t
87 fread(void *__p, size_t __s, size_t __n, FILE *__f)
89 return _fread(__p, __s*__n, __f)/__s;
92 extern __inline__ size_t
93 fwrite(const void *__p, size_t __s, size_t __n, FILE *__f)
95 return _fwrite(__p, __s*__n, __f)/__s;
99 __extern int printf(const char *, ...);
100 __extern int vprintf(const char *, va_list);
101 __extern int fprintf(FILE *, const char *, ...);
102 __extern int vfprintf(FILE *, const char *, va_list);
103 __extern int sprintf(char *, const char *, ...);
104 __extern int vsprintf(char *, const char *, va_list);
105 __extern int snprintf(char *, size_t n, const char *, ...);
106 __extern int vsnprintf(char *, size_t n, const char *, va_list);
107 __extern int asprintf(char **, const char *, ...);
108 __extern int vasprintf(char **, const char *, va_list);
110 /* No buffering, so no flushing needed */
111 extern __inline__ int
118 __extern int sscanf(const char *, const char *, ...);
119 __extern int vsscanf(const char *, const char *, va_list);
121 __extern void perror(const char *);
123 __extern int rename(const char *, const char *);
125 #endif /* _STDIO_H */