1 #ifndef STDIO_H
2 #define STDIO_H
3
4 // CHDK stdio
5
6 // Note: used in modules and platform independent code.
7 // Do not add platform dependent stuff in here (#ifdef/#endif compile options or camera dependent values)
8
9 //==========================================================
10
11 #define SEEK_SET 0
12 #define SEEK_CUR 1
13 #define SEEK_END 2
14
15 // reverse engineered file struct. Appears to be valid for both vxworks and dryos
16 // don't use this directly unless you absolutely need to
17 // don't EVER try to create one yourself, as this isn't the full structure.
18 typedef struct FILE_S {
19 int fd; // used by Read/Write
20 unsigned len; // +4 verfied in Fseek_FileStream
21 int unk0; // +8
22 unsigned pos; // +0xC verified in Fseek_FileStream
23 // unk1; // +0x10
24 // unk2; // +0x14
25 // io_buf; // +0x18 32k uncached allocated in Fopen_FileStream
26 // unk3; // +0x20 related to StartFileAccess_Sem
27 // ...name
28 } FILE;
29
30 extern FILE *fopen(const char *filename, const char *mode);
31 extern long fclose(FILE *f);
32 extern long fread(void *buf, long elsize, long count, FILE *f);
33 extern long fwrite(const void *buf, long elsize, long count, FILE *f);
34 extern long fseek(FILE *file, long offset, long whence);
35 extern long fflush(FILE *file);
36 extern long feof(FILE *file);
37 extern long ftell(FILE *file);
38 extern char *fgets(char *buf, int n, FILE *f);
39
40 #define ftell(f) (f ? (long)f->pos : -1)
41
42 //---------------------------------------------------------------
43
44 #endif