/usr/include/dovecot/file-copy.h is in dovecot-dev 1:2.2.9-1ubuntu2.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 | #ifndef FILE_COPY_H
#define FILE_COPY_H
/* Copy file atomically. First try hardlinking, then fallback to creating
a temporary file (destpath.tmp) and rename()ing it over srcpath.
If the destination file already exists, it may or may not be overwritten,
so that shouldn't be relied on.
Returns -1 = error, 0 = source file not found, 1 = ok */
int file_copy(const char *srcpath, const char *destpath, bool try_hardlink);
#endif
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