| 0,0 → 1,69 |
|---|
| #ifndef HELPERS_H |
| #define HELPERS_H |
| |
| /* case-insensitive comparison of strings, returns non-zero on equality */ |
| int imatch(const char *s1, const char *s2); |
| |
| /* returns zero if s1 starts with s2 */ |
| int strstartswith(const char *s1, const char *s2); |
| |
| /* outputs a NULL-terminated string to stdout */ |
| void output_internal(const char *s, unsigned short nl); |
| |
| #define output(x) output_internal(x, 0) |
| #define outputnl(x) output_internal(x, 1) |
| |
| /* |
| * FileInfoRec (DTA) format: |
| * offset size desc |
| * +0 21 reserved |
| * +15h 1 file attr (1=RO 2=Hidden 4=System 8=VOL 16=DIR 32=Archive |
| * +16h 2 time: bits 0-4=bi-seconds (0-30), bits 5-10=minutes (0-59), bits 11-15=hour (0-23) |
| * +18h 2 date: bits 0-4=day(0-31), bits 5-8=month (1-12), bits 9-15=years since 1980 |
| * +1ah 4 DWORD file size, in bytes |
| * +1eh 13 13-bytes max ASCIIZ filename |
| */ |
| _Packed struct DTA { |
| char reserved[21]; |
| unsigned char attr; |
| unsigned short time; |
| unsigned short date; |
| unsigned long size; |
| char fname[13]; |
| }; |
| |
| #define DOS_ATTR_RO 1 |
| #define DOS_ATTR_HID 2 |
| #define DOS_ATTR_SYS 4 |
| #define DOS_ATTR_VOL 8 |
| #define DOS_ATTR_DIR 16 |
| #define DOS_ATTR_ARC 32 |
| |
| /* find first matching files using a FindFirst DOS call |
| * returns 0 on success or a DOS err code on failure */ |
| unsigned short findfirst(struct DTA *dta, const char *pattern, unsigned short attr); |
| |
| /* find next matching, ie. continues an action intiated by findfirst() */ |
| unsigned short findnext(struct DTA *dta); |
| |
| /* print s string and wait for a single key press from stdin. accepts only |
| * key presses defined in the c ASCIIZ string. returns offset of pressed key |
| * in string. keys in c MUST BE UPPERCASE! */ |
| unsigned short askchoice(const char *s, const char *c); |
| |
| /* converts a path to its canonic representation */ |
| void file_truename(const char *src, char *dst); |
| |
| /* returns DOS attributes of file, or -1 on error */ |
| int file_getattr(const char *fname); |
| |
| /* returns screen's width (in columns) */ |
| unsigned short screen_getwidth(void); |
| |
| /* returns screen's height (in rows) */ |
| unsigned short screen_getheight(void); |
| |
| /* displays the "Press any key to continue" msg and waits for a keypress */ |
| void press_any_key(void); |
| |
| #endif |