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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* Reentrant versions of isatty system call. */ |
| 2 | |||
| 3 | #include |
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| 4 | #include |
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| 5 | #include <_syslist.h> |
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| 6 | |||
| 7 | /* Some targets provides their own versions of these functions. Those |
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| 8 | targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */ |
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| 9 | |||
| 10 | #ifdef _REENT_ONLY |
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| 11 | #ifndef REENTRANT_SYSCALLS_PROVIDED |
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| 12 | #define REENTRANT_SYSCALLS_PROVIDED |
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| 13 | #endif |
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| 14 | #endif |
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| 15 | |||
| 16 | #ifdef REENTRANT_SYSCALLS_PROVIDED |
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| 17 | |||
| 18 | int _dummy_isatty_syscalls = 1; |
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| 19 | |||
| 20 | #else |
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| 21 | |||
| 22 | /* We use the errno variable used by the system dependent layer. */ |
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| 23 | #undef errno |
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| 24 | extern int errno; |
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| 25 | |||
| 26 | /* |
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| 27 | FUNCTION |
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| 28 | <<_isatty_r>>---Reentrant version of isatty |
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| 29 | |||
| 30 | INDEX |
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| 31 | _isatty_r |
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| 32 | |||
| 33 | ANSI_SYNOPSIS |
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| 34 | #include |
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| 35 | int _isatty_r(struct _reent *<[ptr]>, |
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| 36 | int <[fd]>); |
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| 37 | |||
| 38 | TRAD_SYNOPSIS |
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| 39 | #include |
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| 40 | int _isatty_r(<[ptr]>, <[fd]>) |
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| 41 | struct _reent *<[ptr]>; |
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| 42 | int <[fd]>; |
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| 43 | |||
| 44 | DESCRIPTION |
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| 45 | This is a reentrant version of < |
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| 46 | takes a pointer to the global data block, which holds |
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| 47 | < |
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| 48 | */ |
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| 49 | |||
| 50 | int |
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| 51 | _isatty_r (ptr, fd) |
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| 52 | struct _reent *ptr; |
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| 53 | int fd; |
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| 54 | { |
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| 55 | int ret; |
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| 56 | |||
| 4921 | Serge | 57 | errno = 0; |
| 58 | if ((ret = _isatty (fd)) == -1 && errno != 0) |
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| 59 | ptr->_errno = errno; |
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| 60 | return ret; |
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| 4349 | Serge | 61 | } |
| 62 | |||
| 63 | #endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */ |