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21 lines
372 B
C
21 lines
372 B
C
#include "stdafx.h"
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#include "io.h"
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ssize_t sendfile_copy(int from, int to, off_t off, ssize_t size)
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{
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ssize_t left = size;
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off64_t offset = off;
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while (left > 0) {
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ssize_t ret = sendfile64(to, from, &offset, left);
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if (ret <= 0) {
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printf("sendfile error=%zd, %s\r\n", ret, strerror(errno));
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exit(1);
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break;
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}
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left -= ret;
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}
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return size - left;
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}
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