Last change
on this file since 473 was 398, checked in by coas-nagasima, 5 years ago |
mbedTLS版Azure IoT Hub接続サンプルのソースコードを追加
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Property svn:eol-style
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native
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Property svn:mime-type
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text/x-csrc;charset=UTF-8
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File size:
594 bytes
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[398] | 1 | #include "stdio_impl.h"
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| 2 | #include <limits.h>
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| 3 | #include <errno.h>
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| 4 |
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| 5 | off_t __ftello_unlocked(FILE *f)
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| 6 | {
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| 7 | off_t pos = f->seek(f, 0,
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| 8 | (f->flags & F_APP) && f->wpos > f->wbase
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| 9 | ? SEEK_END : SEEK_CUR);
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| 10 | if (pos < 0) return pos;
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| 11 |
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| 12 | /* Adjust for data in buffer. */
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| 13 | return pos - (f->rend - f->rpos) + (f->wpos - f->wbase);
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| 14 | }
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| 15 |
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| 16 | off_t __ftello(FILE *f)
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| 17 | {
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| 18 | off_t pos;
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| 19 | FLOCK(f);
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| 20 | pos = __ftello_unlocked(f);
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| 21 | FUNLOCK(f);
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| 22 | return pos;
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| 23 | }
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| 24 |
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| 25 | long ftell(FILE *f)
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| 26 | {
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| 27 | off_t pos = __ftello(f);
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| 28 | if (pos > LONG_MAX) {
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| 29 | errno = EOVERFLOW;
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| 30 | return -1;
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| 31 | }
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| 32 | return pos;
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| 33 | }
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| 34 |
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| 35 | weak_alias(__ftello, ftello);
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| 36 |
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| 37 | LFS64(ftello);
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