| 1 | #define INCL_WIN
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| 2 | #define INCL_DOS
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| 3 |
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| 4 | #include <os2.h>
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| 5 | #include <stdlib.h>
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| 6 | #include <stdio.h>
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| 7 | #include <string.h>
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| 8 | #include <io.h>
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| 9 | #include <fcntl.h>
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| 10 | #include <share.h>
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| 11 | #include "fm3dll.h"
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| 12 |
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| 13 | #pragma alloc_text(FSOPEN,_fsopen)
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| 14 |
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| 15 | FILE * _fsopen (CHAR *filename,CHAR *mode,INT sharemode,...) {
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| 16 |
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| 17 | ULONG openflag = OPEN_ACTION_OPEN_IF_EXISTS,openmode = 0,action = 0;
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| 18 | HFILE handle;
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| 19 | FILE *fp;
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| 20 | BOOL text = TRUE;
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| 21 |
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| 22 | if(!stristr(mode,"b"))
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| 23 | text = FALSE;
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| 24 | if(stristr(mode,"r"))
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| 25 | openmode |= OPEN_ACCESS_READONLY;
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| 26 | else if(stristr(mode,"w")) {
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| 27 | openmode |= OPEN_ACCESS_WRITEONLY;
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| 28 | openflag |= (OPEN_ACTION_REPLACE_IF_EXISTS | OPEN_ACTION_CREATE_IF_NEW);
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| 29 | }
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| 30 | if(stristr(mode,"a"))
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| 31 | openmode |= OPEN_ACCESS_WRITEONLY;
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| 32 | if(stristr(mode,"+")) {
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| 33 | openmode &= (~(OPEN_ACCESS_READONLY | OPEN_ACCESS_WRITEONLY));
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| 34 | openmode |= OPEN_ACCESS_READWRITE;
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| 35 | openflag |= OPEN_ACTION_CREATE_IF_NEW;
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| 36 | }
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| 37 | if(sharemode == SH_DENYRW)
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| 38 | openmode |= OPEN_SHARE_DENYREADWRITE;
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| 39 | else if(sharemode == SH_DENYWR)
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| 40 | openmode |= OPEN_SHARE_DENYWRITE;
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| 41 | else if(sharemode == SH_DENYRD)
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| 42 | openmode |= OPEN_SHARE_DENYREAD;
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| 43 | else
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| 44 | openmode |= OPEN_SHARE_DENYNONE;
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| 45 | openmode |= OPEN_FLAGS_FAIL_ON_ERROR;
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| 46 | if(text)
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| 47 | openmode |= OPEN_FLAGS_SEQUENTIAL;
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| 48 | else
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| 49 | openmode |= OPEN_FLAGS_RANDOMSEQUENTIAL;
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| 50 | if(DosOpen(filename,&handle,&action,0L,FILE_NORMAL,openflag,openmode,
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| 51 | (PEAOP2)0))
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| 52 | return NULL;
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| 53 | if(mode[strlen(mode) - 1] == 't')
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| 54 | mode[strlen(mode) - 1] = 0; /* bug bug bug */
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| 55 | fp = fdopen(handle,mode);
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| 56 | if(!fp) {
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| 57 | DosClose(handle);
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| 58 | fp = fopen(filename,mode); /* last ditch effort */
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| 59 | }
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| 60 | if(fp) {
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| 61 | if(text) /* line buffer text files */
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| 62 | setvbuf(fp,NULL,_IOLBF,BUFSIZ * 2);
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| 63 | else
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| 64 | setvbuf(fp,NULL,_IOFBF,BUFSIZ * 8);
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| 65 | if(stristr(mode,"a"))
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| 66 | fseek(fp,0L,SEEK_END);
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| 67 | }
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| 68 | return fp;
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| 69 | }
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| 70 |
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