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- /* MakeSFX: join UnZipSFX and a .zip archive into a single self-extracting */
- /* Amiga program. On most systems simple concatenation does the job but for */
- /* the Amiga a special tool is needed. By Paul Kienitz, no rights reserved. */
- /* This program is written portably, so if anyone really wants to they can */
- /* produce Amiga self-extracting programs on a non-Amiga. We are careful */
- /* not to mix Motorola-format longwords read from files with native long */
- /* integers. Not necessarily limited to use with only the Zip format -- */
- /* just combine any archive with any self-extractor program that is capable */
- /* of reading a HUNK_DEBUG section at the end as an archive. */
-
- #include <stat.h>
- #include <string.h>
- #include <stdio.h>
- #include <stdlib.h>
-
- typedef unsigned long ulong;
- typedef unsigned short bool;
- #define false 0
- #define true 1
-
- /* the following are extracted from Commodore include file dos/doshunks.h: */
- #define HUNK_NAME 1000
- #define HUNK_CODE 1001
- #define HUNK_DATA 1002
- #define HUNK_BSS 1003
- #define HUNK_RELOC32 1004
- #define HUNK_SYMBOL 1008
- #define HUNK_DEBUG 1009
- #define HUNK_END 1010
- #define HUNK_HEADER 1011
- #define HUNK_OVERLAY 1013
- #define HUNK_BREAK 1014
-
- /* Convert a big-endian (Motorola) sequence of four bytes to a longword: */
- #define CHARS2LONG(b) (((b)[0]<<24)|((b)[1]<<16)|((b)[2]<<8)|(b)[3])
- /* b must be (unsigned char *) in the above. Now the reverse: */
- #define LONG2CHARS(b,l) ((b)[0]=(l)>>24,(b)[1]=(l)>>16,(b)[2]=(l)>>8,(b)[3]=l)
-
- #define COPYBUFFER 16384
-
-
- bool CopyData(FILE *out, FILE *inn, ulong archivesize,
- char *outname, char *inname)
- {
- static unsigned char buf[COPYBUFFER];
- long bufend, written = 0;
-
- if (archivesize) {
- LONG2CHARS(buf, HUNK_DEBUG);
- bufend = (archivesize + 3) / 4;
- LONG2CHARS(buf + 4, (ulong) bufend);
- if (fwrite(buf, 1, 8, out) < 8) {
- printf("Error writing in-between data to %s\n", outname);
- return false;
- }
- }
- do {
- bufend = fread(buf, 1, COPYBUFFER, inn);
- if (ferror(inn)) {
- printf("Error reading data from %s\n", inname);
- return false;
- }
- if (!archivesize && !written) { /* true only for first block read */
- if (CHARS2LONG(buf) != HUNK_HEADER) {
- printf("%s is not an Amiga executable.\n", inname);
- return false;
- }
- }
- if (fwrite(buf, 1, bufend, out) < bufend) {
- printf("Error writing %s to %s\n", archivesize ? "archive data" :
- "self-extractor code", outname);
- return false;
- }
- written += bufend;
- } while (!feof(inn));
- if (archivesize) {
- if (written != archivesize) {
- printf("Wrong number of bytes copied from archive %s\n", outname);
- return false;
- }
- LONG2CHARS(buf, 0);
- bufend = 3 - (written + 3) % 4;
- LONG2CHARS(buf + bufend, HUNK_END);
- bufend += 4;
- if (fwrite(buf, 1, bufend, out) < bufend) {
- printf("Error writing end-marker data to %s\n", outname);
- return false;
- }
- }
- return true;
- }
-
-
- void main(int argc, char **argv)
- {
- FILE *out, *arch, *tool;
- char *toolname = argv[3];
- struct stat ss;
- int ret;
- ulong archivesize;
-
- if (argc < 3 || argc > 4) {
- printf("Usage: %s <result-file> <zip-archive> [<self-extractor-"
- "program>]\nThe third arg defaults to \"UnZipSFX\" in the"
- " current dir.\n", argv[0]);
- exit(20);
- }
- if (!(arch = fopen(argv[2], "rb"))) {
- printf("Could not find archive file %s\n", argv[2]);
- exit(10);
- }
- if (stat(argv[2], &ss) || !(archivesize = ss.st_size)) {
- fclose(arch);
- printf("Could not check size of archive %s, or file is empty.\n",
- argv[2]);
- exit(10);
- }
- if (argc < 4)
- toolname = "UnZipSFX";
- if (!(tool = fopen(toolname, "rb"))) {
- fclose(arch);
- printf("Could not find self-extractor program %s\n", toolname);
- exit(10);
- }
- if (!(out = fopen(argv[1], "wb"))) {
- fclose(arch);
- fclose(tool);
- printf("Could not create output file %s\n", argv[1]);
- exit(10);
- }
- ret = CopyData(out, tool, 0, argv[1], toolname)
- && CopyData(out, arch, archivesize, argv[1], argv[2]) ? 0 : 10;
- fclose(out);
- fclose(arch);
- fclose(tool);
- if (ret) {
- printf("Deleting %s\n", argv[1]);
- remove(argv[1]);
- } else
- printf("%s successfully written.\n", argv[1]);
- exit(ret);
- }
-
-
- #if (defined(AZTEC_C) && defined(MCH_AMIGA))
- void _wb_parse(void) { }
- #endif
-