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

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    Revision 1297 - (show annotations) (download)
    Fri May 27 15:12:11 2011 UTC (12 years, 11 months 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 /*
    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 __static_inline FILE *fdopen(int __fd, const char *__m)
    53 {
    54 (void)__m;
    55 return __create_file(__fd);
    56 }
    57 __static_inline int fclose(FILE * __f)
    58 {
    59 extern int close(int);
    60 return close(fileno(__f));
    61 }
    62 __static_inline int fseek(FILE * __f, off_t __o, int __w)
    63 {
    64 extern off_t lseek(int, off_t, int);
    65 return (lseek(fileno(__f), __o, __w) == (off_t) - 1) ? -1 : 0;
    66 }
    67 __static_inline off_t ftell(FILE * __f)
    68 {
    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 __extern_inline size_t
    89 fread(void *__p, size_t __s, size_t __n, FILE * __f)
    90 {
    91 return _fread(__p, __s * __n, __f) / __s;
    92 }
    93
    94 __extern_inline size_t
    95 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 __static_inline int fflush(FILE * __f)
    114 {
    115 (void)__f;
    116 return 0;
    117 }
    118
    119 /* stream errors are not kept track of by klibc implementation */
    120 __static_inline int ferror(FILE * __f)
    121 {
    122 (void)__f;
    123 return 0;
    124 }
    125
    126 __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 */