117 lines
3.5 KiB
C
117 lines
3.5 KiB
C
/*
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File: Data.c
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Contains: Source to MPW tool that reads the code segment 1 from
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the resource file and writes it out to the data fork of
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another file.
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Written by: George Norman - 7/30/86
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Copyright: © 1986, 1992 by Apple Computer, Inc., all rights reserved.
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Change History (most recent first):
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<SM5> 12-04-92 jmp Fixed a 32-bit cleanliness problem and temporarily changed
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'decl' back to 'CODE' as I checked 3.2’s Linker into the
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project.
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<4> 3/31/92 JSM Rolled this file into Reality.
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<3> 2/20/92 kc Change DeclData resource type from 'CODE' to 'decl'. Remove code
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to skip resource header.
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<2> 2/13/92 RB Need to call StripAddress on the resource pointer instead of
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anding the address with FF's.
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<1> 1/31/92 JSM first checked in
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*/
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#include <stdio.h>
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#include <fcntl.h>
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#include <types.h>
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#include <osutils.h>
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#include <files.h>
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#include <resources.h>
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#include <memory.h>
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#include <errno.h>
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/******************************************************************
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Main
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*******************************************************************/
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main(argc,argv)
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int argc;
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char *argv[];
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{
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short refnum;
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Handle CodeHandle; /* Handle to code resource */
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long SizeCode; /* Size of the code */
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Ptr CodePtr; /* Pointer to the code */
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int FileDescript; /* The file descriptor of the data file */
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unsigned NumBWritten; /* Number of bytes written per write */
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unsigned Total; /* Total number of bytes written */
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if (argc == 1)
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{
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fprintf(stderr,"### ERROR : No files specified.\n");
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fprintf(stderr,"### SYNTAX: Data rsrcFileName DataFileName\n");
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fprintf(stderr,"### DSCRPT: Copy code segment 1 to a data file.\n");
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}
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else if (argc != 3)
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{
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fprintf(stderr,"### ERROR : Wrong number of parameters specified.\n");
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fprintf(stderr,"### SYNTAX: Data rsrcFileName DataFileName\n");
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fprintf(stderr,"### DSCRPT: Copy code segment 1 to a data file.\n");
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}
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else
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{
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refnum = openresfile(argv[1]);
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if (refnum < 0 )
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fprintf(stderr,"### ERROR : Resource file: %s can't be opened. err = %d.\n",argv[1],refnum);
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else
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{
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CodeHandle = Get1Resource('CODE',1);
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if (CodeHandle == nil)
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fprintf(stderr,"### ERROR : Code resource not available. Err = %d\n",errno);
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else
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{
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LoadResource(CodeHandle); // Make sure the resource is loaded.
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HNoPurge(CodeHandle); // Make sure it stays loaded.
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HLock(CodeHandle); // Make sure it doesn’t move.
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// Originally, this code subtracted 4 from SizeCode and added 4 to CodePtr
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// due to the fact that the Linker would automatically put in space for a
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// 'CODE' resource’s jump table. With the 3.2 Linker, this is no longer done
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// when the -rt option is specified.
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//
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SizeCode = GetHandleSize(CodeHandle);
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CodePtr = (Ptr)(*CodeHandle);
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FileDescript = creat(argv[2]);
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if (FileDescript < 0)
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fprintf(stderr,"### ERROR : Data file: %s can't be opened. err = %d.\n",argv[2],errno);
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else
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{
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Total = 0;
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while (Total < SizeCode)
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{
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NumBWritten = write(FileDescript,CodePtr,SizeCode);
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if (NumBWritten < 0)
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{
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fprintf(stderr,"### ERROR : Write err = %d.\n",errno);
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Total = SizeCode;
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}
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else
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Total = Total + NumBWritten;
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}
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close(FileDescript);
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}
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CloseResFile(refnum);
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}
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}
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}
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}
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