Last change
on this file since 413 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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File size:
613 bytes
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1 | #define _GNU_SOURCE
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2 | #include <unistd.h>
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3 | #include <errno.h>
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4 | #include <fcntl.h>
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5 | #include "syscall.h"
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6 | #include "libc.h"
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7 |
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8 | int __dup3(int old, int new, int flags)
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9 | {
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10 | int r;
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11 | #ifdef SYS_dup2
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12 | if (old==new) return __syscall_ret(-EINVAL);
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13 | if (flags & O_CLOEXEC) {
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14 | while ((r=__syscall(SYS_dup3, old, new, flags))==-EBUSY);
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15 | if (r!=-ENOSYS) return __syscall_ret(r);
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16 | }
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17 | while ((r=__syscall(SYS_dup2, old, new))==-EBUSY);
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18 | if (flags & O_CLOEXEC) __syscall(SYS_fcntl, new, F_SETFD, FD_CLOEXEC);
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19 | #else
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20 | while ((r=__syscall(SYS_dup3, old, new, flags))==-EBUSY);
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21 | #endif
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22 | return __syscall_ret(r);
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23 | }
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24 |
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25 | weak_alias(__dup3, dup3);
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