/usr/include/simgear/nasal/iolib.h is in libsimgear-dev 1:2018.1.1+dfsg-1.
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 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | #ifndef _IOLIB_H
#define _IOLIB_H
#ifdef __cplusplus
extern "C" {
#endif
#include "nasal.h"
// Note use of 32 bit ints, should fix at some point to use
// platform-dependent fpos_t/size_t or just punt and use int64_t
// everywhere...
// The naContext is passed in for error reporting via
// naRuntimeError().
struct naIOType {
void (*close)(naContext c, void* f);
int (*read) (naContext c, void* f, char* buf, unsigned int len);
int (*write)(naContext c, void* f, char* buf, unsigned int len);
void (*seek) (naContext c, void* f, unsigned int off, int whence);
int (*tell) (naContext c, void* f);
void (*flush) (naContext c, void* f);
void (*destroy)(void* f);
};
struct naIOGhost {
struct naIOType* type;
void* handle; // descriptor, FILE*, HANDLE, etc...
};
extern naGhostType naIOGhostType;
extern struct naIOType naStdIOType;
#define IOGHOST(r) ((struct naIOGhost*)naGhost_ptr(r))
#define IS_IO(r) (IS_GHOST(r) && naGhost_type(r) == &naIOGhostType)
#define IS_STDIO(r) (IS_IO(r) && (IOGHOST(r)->type == &naStdIOType))
// Defined in iolib.c, there is no "library" header to put this in
naRef naIOGhost(naContext c, FILE* f);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // _IOLIB_H
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