/usr/include/tnef-errors.h is in libytnef0-dev 1.5-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | #ifndef _TNEF_ERRORS_
#define _TNEF_ERRORS_
#define YTNEF_CANNOT_INIT_DATA -1
#define YTNEF_NOT_TNEF_STREAM -2
#define YTNEF_ERROR_READING_DATA -3
#define YTNEF_NO_KEY -4
#define YTNEF_BAD_CHECKSUM -5
#define YTNEF_ERROR_IN_HANDLER -6
#define YTNEF_UNKNOWN_PROPERTY -7
#define YTNEF_INCORRECT_SETUP -8
#endif
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