Rev 4872 | Rev 4921 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* Reentrant versions of fstat system call. This implementation just |
| 2 | calls the fstat system call. */ |
||
| 3 | |||
| 4 | #include |
||
| 5 | #include |
||
| 6 | #include |
||
| 7 | #include <_syslist.h> |
||
| 8 | #include |
||
| 9 | #include |
||
| 10 | |||
| 11 | |||
| 12 | /* Some targets provides their own versions of these functions. Those |
||
| 13 | targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */ |
||
| 14 | |||
| 15 | #ifdef _REENT_ONLY |
||
| 16 | #ifndef REENTRANT_SYSCALLS_PROVIDED |
||
| 17 | #define REENTRANT_SYSCALLS_PROVIDED |
||
| 18 | #endif |
||
| 19 | #endif |
||
| 20 | |||
| 21 | #ifdef REENTRANT_SYSCALLS_PROVIDED |
||
| 22 | |||
| 23 | int _dummy_fstat_syscalls = 1; |
||
| 24 | |||
| 25 | #else |
||
| 26 | |||
| 27 | /* We use the errno variable used by the system dependent layer. */ |
||
| 28 | |||
| 29 | /* |
||
| 30 | FUNCTION |
||
| 31 | <<_fstat_r>>---Reentrant version of fstat |
||
| 32 | |||
| 33 | INDEX |
||
| 34 | _fstat_r |
||
| 35 | |||
| 36 | ANSI_SYNOPSIS |
||
| 37 | #include |
||
| 38 | int _fstat_r(struct _reent *<[ptr]>, |
||
| 39 | int <[fd]>, struct stat *<[pstat]>); |
||
| 40 | |||
| 41 | TRAD_SYNOPSIS |
||
| 42 | #include |
||
| 43 | int _fstat_r(<[ptr]>, <[fd]>, <[pstat]>) |
||
| 44 | struct _reent *<[ptr]>; |
||
| 45 | int <[fd]>; |
||
| 46 | struct stat *<[pstat]>; |
||
| 47 | |||
| 48 | DESCRIPTION |
||
| 49 | This is a reentrant version of < |
||
| 50 | takes a pointer to the global data block, which holds |
||
| 51 | < |
||
| 52 | */ |
||
| 53 | |||
| 54 | #pragma pack(push, 1) |
||
| 55 | typedef struct |
||
| 56 | { |
||
| 57 | char sec; |
||
| 58 | char min; |
||
| 59 | char hour; |
||
| 60 | char rsv; |
||
| 61 | }detime_t; |
||
| 62 | |||
| 63 | typedef struct |
||
| 64 | { |
||
| 65 | char day; |
||
| 66 | char month; |
||
| 67 | short year; |
||
| 68 | }dedate_t; |
||
| 69 | |||
| 70 | typedef struct |
||
| 71 | { |
||
| 72 | unsigned attr; |
||
| 73 | unsigned flags; |
||
| 74 | union |
||
| 75 | { |
||
| 76 | detime_t ctime; |
||
| 77 | unsigned cr_time; |
||
| 78 | }; |
||
| 79 | union |
||
| 80 | { |
||
| 81 | dedate_t cdate; |
||
| 82 | unsigned cr_date; |
||
| 83 | }; |
||
| 84 | union |
||
| 85 | { |
||
| 86 | detime_t atime; |
||
| 87 | unsigned acc_time; |
||
| 88 | }; |
||
| 89 | union |
||
| 90 | { |
||
| 91 | dedate_t adate; |
||
| 92 | unsigned acc_date; |
||
| 93 | }; |
||
| 94 | union |
||
| 95 | { |
||
| 96 | detime_t mtime; |
||
| 97 | unsigned mod_time; |
||
| 98 | }; |
||
| 99 | union |
||
| 100 | { |
||
| 101 | dedate_t mdate; |
||
| 102 | unsigned mod_date; |
||
| 103 | }; |
||
| 104 | unsigned size; |
||
| 105 | unsigned size_high; |
||
| 106 | } FILEINFO; |
||
| 107 | |||
| 108 | #pragma pack(pop) |
||
| 109 | |||
| 110 | extern unsigned __NFiles; |
||
| 111 | |||
| 112 | #define __handle_check( __h, __r ) \ |
||
| 113 | if( (__h) < 0 || (__h) > __NFiles ) { \ |
||
| 114 | ptr->_errno = EBADF ; \ |
||
| 115 | return( __r ); \ |
||
| 116 | } |
||
| 117 | |||
| 118 | int |
||
| 119 | _fstat_r (ptr, fd, pstat) |
||
| 120 | struct _reent *ptr; |
||
| 121 | int fd; |
||
| 122 | struct stat *pstat; |
||
| 123 | { |
||
| 124 | FILEINFO info; |
||
| 125 | int ret; |
||
| 126 | |||
| 127 | __file_handle *fh; |
||
| 128 | |||
| 129 | __handle_check( fd, -1 ); |
||
| 130 | |||
| 131 | if (fd < 3) |
||
| 132 | { |
||
| 133 | pstat->st_mode = S_IFCHR; |
||
| 134 | pstat->st_blksize = 0; |
||
| 135 | return 0; |
||
| 136 | } |
||
| 137 | |||
| 138 | fh = (__file_handle*) __getOSHandle( fd ); |
||
| 139 | get_fileinfo(fh->name, &info); |
||
| 140 | |||
| 141 | memset (pstat, 0, sizeof (* pstat)); |
||
| 142 | pstat->st_mode = S_IFREG; |
||
| 143 | pstat->st_blksize = 4096; |
||
| 144 | pstat->st_size = info.size; |
||
| 145 | return 0; |
||
| 146 | } |
||
| 147 | |||
| 148 | int |
||
| 149 | _DEFUN (fstat, (fd, pstat), |
||
| 150 | int fd _AND |
||
| 151 | struct stat *pstat) |
||
| 152 | { |
||
| 153 | return _fstat_r (_REENT, fd, pstat); |
||
| 154 | } |
||
| 155 | |||
| 156 | #endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */ |