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25 lines
588 B
C
25 lines
588 B
C
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#include <unistd.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <sys/syscall.h>
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extern long int syscall (long int __sysno, ...) __THROW;
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int pipe2(int fd[2], int flag)
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{
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if (!flag) return pipe(fd);
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int ret = syscall(SYS_pipe2, fd, flag);
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if (ret != -ENOSYS) return -ret;
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ret = pipe(fd);
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if (ret) return ret;
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if (flag & O_CLOEXEC) {
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syscall(SYS_fcntl, fd[0], F_SETFD, FD_CLOEXEC);
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syscall(SYS_fcntl, fd[1], F_SETFD, FD_CLOEXEC);
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}
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if (flag & O_NONBLOCK) {
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syscall(SYS_fcntl, fd[0], F_SETFL, O_NONBLOCK);
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syscall(SYS_fcntl, fd[1], F_SETFL, O_NONBLOCK);
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}
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return 0;
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}
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