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    Annotation of /trunk/mkinitrd-magellan/klibc/usr/include/stdio.h

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    Revision 1297 - (hide annotations) (download)
    Fri May 27 15:12:11 2011 UTC (13 years ago) by niro
    File MIME type: text/plain
    File size: 3420 byte(s) 
    -updated to klibc-1.5.22 with mntproc definitions patch included
    1 niro 532 /*
    2     * stdio.h
    3     */
    4    
    5     #ifndef _STDIO_H
    6     #define _STDIO_H
    7    
    8     #include <klibc/extern.h>
    9     #include <stdarg.h>
    10     #include <stddef.h>
    11     #include <unistd.h>
    12    
    13     /* This structure doesn't really exist, but it gives us something
    14     to define FILE * with */
    15     struct _IO_file;
    16     typedef struct _IO_file FILE;
    17    
    18     #ifndef EOF
    19     # define EOF (-1)
    20     #endif
    21    
    22     #ifndef BUFSIZ
    23     # define BUFSIZ 4096
    24     #endif
    25    
    26     #define SEEK_SET 0
    27     #define SEEK_CUR 1
    28     #define SEEK_END 2
    29    
    30     /*
    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
    35     * non-NULL are valid.
    36     */
    37     static __inline__ int fileno(FILE * __f)
    38     {
    39     /* This should really be intptr_t, but size_t should be the same size */
    40     return (int)(size_t) __f - 1;
    41     }
    42    
    43     /* This is a macro so it can be used as initializer */
    44     #define __create_file(__fd) ((FILE *)(size_t)((__fd) + 1))
    45    
    46     #define stdin __create_file(0)
    47     #define stdout __create_file(1)
    48     #define stderr __create_file(2)
    49    
    50     __extern FILE *fopen(const char *, const char *);
    51    
    52 niro 1297 __static_inline FILE *fdopen(int __fd, const char *__m)
    53 niro 532 {
    54     (void)__m;
    55     return __create_file(__fd);
    56     }
    57 niro 1297 __static_inline int fclose(FILE * __f)
    58 niro 532 {
    59     extern int close(int);
    60     return close(fileno(__f));
    61     }
    62 niro 1297 __static_inline int fseek(FILE * __f, off_t __o, int __w)
    63 niro 532 {
    64     extern off_t lseek(int, off_t, int);
    65     return (lseek(fileno(__f), __o, __w) == (off_t) - 1) ? -1 : 0;
    66     }
    67 niro 1297 __static_inline off_t ftell(FILE * __f)
    68 niro 532 {
    69     extern off_t lseek(int, off_t, int);
    70     return lseek(fileno(__f), 0, SEEK_CUR);
    71     }
    72    
    73     __extern int fputs(const char *, FILE *);
    74     __extern int puts(const char *);
    75     __extern int fputc(int, FILE *);
    76     #define putc(c,f) fputc((c),(f))
    77     #define putchar(c) fputc((c),stdout)
    78    
    79     __extern int fgetc(FILE *);
    80     __extern char *fgets(char *, int, FILE *);
    81     #define getc(f) fgetc(f)
    82     #define getchar() fgetc(stdin)
    83    
    84     __extern size_t _fread(void *, size_t, FILE *);
    85     __extern size_t _fwrite(const void *, size_t, FILE *);
    86    
    87     #ifndef __NO_FREAD_FWRITE_INLINES
    88 niro 1297 __extern_inline size_t
    89     fread(void *__p, size_t __s, size_t __n, FILE * __f)
    90 niro 532 {
    91     return _fread(__p, __s * __n, __f) / __s;
    92     }
    93    
    94 niro 1297 __extern_inline size_t
    95 niro 532 fwrite(const void *__p, size_t __s, size_t __n, FILE * __f)
    96     {
    97     return _fwrite(__p, __s * __n, __f) / __s;
    98     }
    99     #endif
    100    
    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);
    109     __extern int asprintf(char **, const char *, ...);
    110     __extern int vasprintf(char **, const char *, va_list);
    111    
    112     /* No buffering, so no flushing needed */
    113 niro 1297 __static_inline int fflush(FILE * __f)
    114 niro 532 {
    115     (void)__f;
    116     return 0;
    117     }
    118    
    119 niro 1122 /* stream errors are not kept track of by klibc implementation */
    120 niro 1297 __static_inline int ferror(FILE * __f)
    121 niro 1122 {
    122     (void)__f;
    123     return 0;
    124     }
    125    
    126 niro 532 __extern int sscanf(const char *, const char *, ...);
    127     __extern int vsscanf(const char *, const char *, va_list);
    128    
    129     __extern void perror(const char *);
    130    
    131     __extern int rename(const char *, const char *);
    132     __extern int renameat(int, const char *, int, const char *);
    133    
    134     __extern int remove(const char *);
    135    
    136     #endif /* _STDIO_H */