Last change
on this file since 403 was 337, checked in by coas-nagasima, 6 years ago |
ASP3版ECNLを追加
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Property svn:eol-style
set to
native
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Property svn:mime-type
set to
text/x-csrc;charset=UTF-8
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File size:
380 bytes
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1 | #include <unistd.h>
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2 | #include <errno.h>
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3 | #include <fcntl.h>
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4 | #include "syscall.h"
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5 |
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6 | int dup2(int old, int new)
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7 | {
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8 | int r;
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9 | #ifdef SYS_dup2
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10 | while ((r=__syscall(SYS_dup2, old, new))==-EBUSY);
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11 | #else
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12 | if (old==new) {
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13 | r = __syscall(SYS_fcntl, old, F_GETFD);
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14 | if (r >= 0) return old;
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15 | } else {
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16 | while ((r=__syscall(SYS_dup3, old, new, 0))==-EBUSY);
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17 | }
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18 | #endif
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19 | return __syscall_ret(r);
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20 | }
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