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Change behaviour of sendfile(2) on FreeBSD to mimic Linux #18

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Change behaviour of sendfile(2) on FreeBSD to mimic Linux #18

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12 changes: 10 additions & 2 deletions src/lib/sendfile.c
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,9 @@ int sendfile(int, int, off_t, off_t *, void *, int);
#endif

#include <stdlib.h>
# if defined(__FreeBSD__) || defined(__DragonFly__)
#include <errno.h>
# endif

DSO_PUBLIC ssize_t
lfp_sendfile(int out_fd, int in_fd, off_t offset, size_t nbytes)
Expand All @@ -46,8 +49,13 @@ lfp_sendfile(int out_fd, int in_fd, off_t offset, size_t nbytes)
# if defined(__linux__)
off_t off = offset;
return (ssize_t) sendfile(out_fd, in_fd, &off, nbytes);
# elif defined(__FreeBSD__)
return (ssize_t) sendfile(in_fd, out_fd, offset, nbytes, NULL, NULL, SF_MNOWAIT);
# elif defined(__FreeBSD__) || defined(__DragonFly__)
off_t sbytes;
int res = sendfile(in_fd, out_fd, offset, nbytes, NULL, &sbytes, 0);
if (res == -1 && errno == EAGAIN)
res = 0;
if (res == 0) res = sbytes;
return res;
# elif defined(__DragonFly__)
return (ssize_t) sendfile(in_fd, out_fd, offset, nbytes, NULL, NULL, 0);
# elif defined(__APPLE__)
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