home *** CD-ROM | disk | FTP | other *** search
- /* mcvert.c - version 1.0 - March 30, 1989
- * Written by Doug Moore - Cornell University - moore@cs.cornell.edu - April '87
- * Sun bug fixes, assorted stuff - Jim Sasaki, March '89
- *
- * This program may be freely distributed for non-profit purposes. It may not
- * be sold, by itself or as part of a collection of software. It may be freely
- * modified as long as no modified version is distributed. Modifications of
- * interest to all can be incorporated into the program by sending them to me
- * for distribution. Parts of the code can be used in other programs. I am not
- * responsible for any damage caused by this program. I hope you enjoy it.
- */
-
- #include "mactypes.h"
-
- #define HQX 0
- #define TEXT 1
- #define DATA 2
- #define RSRC 3
- #define FORWARDS 0
- #define BACKWARDS 1
-
- FILE *verbose;
- char **hqxnames, **hqxnames_left;
- char *dir, *ext, *text_author;
- char *maxlines_str;
- int maxlines;
-
- main(argc, argv)
- int argc;
- char **argv;
- { char *flags, *getenv();
- int direction, mode, unpit_flag;
-
- argv++;
- argc--;
- verbose = stderr;
- direction = FORWARDS;
- mode = HQX;
- unpit_flag = 0;
-
- if ((text_author = getenv("MAC_EDITOR")) == NULL) text_author = "MACA";
- if ((ext = getenv("MAC_EXT")) == NULL) ext = ".bin";
- if ((dir = getenv("MAC_DLOAD_DIR")) == NULL) dir = ".";
- if ((maxlines_str = getenv("MAC_LINE_LIMIT")) == NULL) maxlines = 2000;
- else maxlines = atoi(maxlines_str);
-
- /* Make command line arguments globally accessible */
- hqxnames = (char **) calloc(argc+1, sizeof(char *));
- hqxnames_left = hqxnames;
- while (argc--) *hqxnames_left++ = *argv++;
- *hqxnames_left = "-";
- hqxnames_left = hqxnames;
-
- while (strcmp(*hqxnames_left, "-")) {
- if (hqxnames_left[0][0] == '-') {
- flags = *hqxnames_left++;
- while (*++flags)
- switch (*flags) {
- case 'x':
- mode = HQX;
- break;
- case 'u':
- mode = TEXT;
- break;
- case 'd':
- mode = DATA;
- break;
- case 'r':
- mode = RSRC;
- break;
- case 'D':
- direction = FORWARDS;
- break;
- case 'U':
- direction = BACKWARDS;
- break;
- case 'q':
- unpit_flag = 0;
- break;
- case 'p':
- unpit_flag = 1;
- break;
- case 's':
- verbose = fopen("/dev/null", "w");
- break;
- case 'v':
- verbose = stderr;
- break;
- default:
- error(
- "Usage: mcvert [ -[r|d|u|x] [D|U] [p|q] [s|v] ] filename...",
- NULL);
- }
- }
-
- if (direction == BACKWARDS)
- if (mode == HQX && unpit_flag) re_hqx();/* no re_pit() yet */
- else if (mode == HQX) re_hqx();
- else re_other(mode);
- else
- if (mode == HQX) un_hqx(unpit_flag);
- else un_other(mode);
- }
- }
-
- /* An array useful for CRC calculations that use 0x1021 as the "seed" */
- word magic[] = {
- 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
- 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
- 0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
- 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
- 0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
- 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
- 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
- 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
- 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
- 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
- 0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
- 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
- 0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
- 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
- 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
- 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
- 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
- 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
- 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
- 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
- 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
- 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
- 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
- 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
- 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
- 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
- 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
- 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
- 0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
- 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
- 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
- 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0
- };
-
- /* Report a fatal error */
- error(msg, name)
- char msg[], name[];
- { fprintf(stderr, msg, name);
- putc('\n', stderr);
- exit(1);
- }
-
- /* replace illegal Unix characters in file name */
- /* make sure host file name doesn't get truncated beyond recognition */
- unixify(np)
- register byte *np;
- { register ulong c;
- c = strlen(np);
- if (c > SYSNAMELEN - 4) c = SYSNAMELEN - 4;
- np[c] = '\0';
- np--;
- while (c = *++np)
- if (c <= ' ' || c == '/' || c > '~') *np = '_';
- }
-
- /* Convert Unix time (GMT since 1-1-1970) to Mac
- time (local since 1-1-1904) */
- #define MACTIMEDIFF 0x7c25b080 /* Mac time of 00:00:00 GMT, Jan 1, 1970 */
-
- ulong time2mac(time)
- ulong time;
- { struct timeb tp;
- ftime(&tp);
- return long2mac(time + MACTIMEDIFF
- - 60 * (tp.timezone - 60 * tp.dstflag));
- }
-
-
- /* This procedure copies the input file to the output file, basically, although
- in TEXT mode it changes LF's to CR's and in any mode it forges a Mac info
- header. Author type for TEXT mode can come from the MAC_EDITOR environ-
- ment variable if it is defined. */
-
- un_other(mode)
- int mode;
- { register ulong b;
- register ulong nchars;
- char txtfname[BINNAMELEN], binfname[BINNAMELEN];
- FILE *txtfile, *binfile;
- char *suffix;
- struct stat stbuf;
- info_header info;
- int extra_chars;
- ulong dlen, rlen, mtim, ctim;
-
- if (mode == DATA) suffix = ".data";
- else if (mode == RSRC) suffix = ".rsrc";
- else suffix = ".text";
-
- while (hqxnames_left[0][0] != '-') {
-
- strcpy(txtfname, *hqxnames_left++);
- if (!(txtfile = fopen(txtfname, "r"))) {
- /* Maybe we are supposed to figure out the suffix ourselves? */
- strcat(txtfname, suffix);
- if (!(txtfile = fopen(txtfname, "r")))
- error("Cannot open %s", txtfname);
- }
-
- if (stat(txtfname, &stbuf))
- error("Cannot read %s", txtfname);
-
- /* stuff header data into the info header */
- bzero(&info, sizeof(info_header));
- info.nlen = strlen(txtfname);
- info.nlen = (info.nlen > NAMELEN) ? NAMELEN : info.nlen;
- info.name[info.nlen] = '\0';
- strcpy(info.name, txtfname); /* name */
- mtim = time2mac(stbuf.st_mtime);
- ctim = time2mac(stbuf.st_ctime);
- bcopy(&mtim, info.mtim, 4);
- bcopy(&ctim, info.ctim, 4);
-
- if (mode == RSRC) {
- /* dlen is already zero */
- rlen = long2mac(stbuf.st_size);
- bcopy(&rlen, info.rlen, 4);
- bcopy("APPL", info.type, 4);
- bcopy("CCOM", info.auth, 4);
- }
- else {
- dlen = long2mac(stbuf.st_size);
- bcopy(&dlen, info.dlen, 4);
- /* rlen is already zero */
- bcopy("TEXT", info.type, 4);
- if (mode == DATA) bcopy("????", info.auth, 4);
- else bcopy(text_author, info.auth, 4);
- }
-
- /* Create the .bin file and write the info to it */
- sprintf(binfname, "%s/%s%s", dir, txtfname, ext);
- if ((binfile = fopen(binfname, "w")) == NULL)
- error("Cannot open %s", binfname);
- fprintf(verbose,
- "Converting %-30s type = \"%4.4s\", author = \"%4.4s\"\n",
- txtfname, info.type, info.auth);
- fwrite(&info, sizeof(info), 1, binfile);
-
- nchars = stbuf.st_size;
- extra_chars = 127 - (nchars+127) % 128;
- if (mode == TEXT) while (nchars--) {
- b = getc(txtfile);
- if (b == LF) b = CR;
- putc(b, binfile);
- }
- else while (nchars--) putc(getc(txtfile), binfile);
-
- while (extra_chars--) putc(0, binfile);
- fclose(binfile);
- fclose(txtfile);
- }
- }
-
- /* This procedure copies the input file to the output file, basically, although
- in TEXT mode it changes CR's to LF's and in any mode it skips over the Mac
- info header. */
-
- re_other(mode)
- int mode;
- { register ulong b;
- register ulong nchars;
- char txtfname[BINNAMELEN], binfname[BINNAMELEN];
- FILE *txtfile, *binfile;
- char *suffix;
- info_header info;
-
- if (mode == DATA) suffix = ".data";
- else if (mode == RSRC) suffix = ".rsrc";
- else suffix = ".text";
-
- while (hqxnames_left[0][0] != '-') {
-
- strcpy(binfname, *hqxnames_left++);
- if ((binfile = fopen(binfname, "r")) == NULL) {
- /* Maybe we are supposed to figure out the suffix ourselves? */
- strcat(binfname, ext);
- if (!(binfile = fopen(binfname, "r")))
- error("Cannot open %s", binfname);
- }
-
- /* Read the info from the .bin file, create the output file */
- fread(&info, sizeof(info), 1, binfile);
- strncpy(txtfname, info.name, info.nlen);
- txtfname[info.nlen] = '\0';
- fprintf(verbose,
- "Converting %-30s type = \"%4.4s\", author = \"%4.4s\"\n",
- txtfname, info.type, info.auth);
- if ((txtfile = fopen(txtfname, "r")) == NULL) {
- if ((txtfile = fopen(txtfname, "w")) == NULL)
- error("Cannot open %s", txtfname);
- }
- else {
- fclose(txtfile);
- strcat(txtfname, suffix);
- if ((txtfile = fopen(txtfname, "w")) == NULL)
- error("Cannot open %s", txtfname);
- }
-
- nchars = mac2long(* (ulong *) info.dlen);
- if (mode == TEXT) while (nchars--) {
- b = getc(binfile);
- if (b == CR) b = LF;
- putc(b, txtfile);
- }
- else if (mode == DATA) while (nchars--)
- putc(getc(binfile), txtfile);
- else {
- while (nchars--) getc(binfile);
- nchars = mac2long(* (ulong *) info.rlen);
- while (nchars--) putc(getc(binfile), txtfile);
- }
-
- fclose(binfile);
- fclose(txtfile);
- }
- }
-