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- /*
- * $Header: arccvt.c,v 1.5 88/06/01 19:17:40 hyc Locked $
- */
-
- /*
- * ARC - Archive utility - ARCCVT
- *
- * Version 1.16, created on 02/03/86 at 22:53:02
- *
- * (C) COPYRIGHT 1985 by System Enhancement Associates; ALL RIGHTS RESERVED
- *
- * By: Thom Henderson
- *
- * Description: This file contains the routines used to convert archives to use
- * newer file storage methods.
- *
- * Language: Computer Innovations Optimizing C86
- */
- #include <stdio.h>
- #include "arc.h"
-
- void openarc(), rempath(), closearc(), abort(), pack(), writehdr(), filecopy();
- int match(), readhdr(), unpack(), unlink();
-
- static char tempname[STRLEN]; /* temp file name */
-
- void
- cvtarc(num, arg) /* convert archive */
- int num; /* number of arguments */
- char *arg[]; /* pointers to arguments */
- {
- struct heads hdr; /* file header */
- int cvt; /* true to convert current file */
- int did[MAXARG];/* true when argument was used */
- int n; /* index */
- char *makefnam(); /* filename fixer */
- FILE *fopen();/* file opener */
- void cvtfile();
-
- if (arctemp) /* use temp area if specified */
- sprintf(tempname, "%s.CVT", arctemp);
- else
- makefnam("$ARCTEMP.CVT", arcname, tempname);
- #if !DOS
- image = 1;
- #endif
-
- openarc(1); /* open archive for changes */
-
- for (n = 0; n < num; n++) /* for each argument */
- did[n] = 0; /* reset usage flag */
- rempath(num, arg); /* strip off paths */
-
- if (num) { /* if files were named */
- while (readhdr(&hdr, arc)) { /* while more files to check */
- cvt = 0;/* reset convert flag */
- for (n = 0; n < num; n++) { /* for each template
- * given */
- if (match(hdr.name, arg[n])) {
- cvt = 1; /* turn on convert flag */
- did[n] = 1; /* turn on usage flag */
- break; /* stop looking */
- }
- }
-
- if (cvt)/* if converting this one */
- cvtfile(&hdr); /* then do it */
- else { /* else just copy it */
- writehdr(&hdr, new);
- filecopy(arc, new, hdr.size);
- }
- }
- } else
- while (readhdr(&hdr, arc)) /* else convert all files */
- cvtfile(&hdr);
-
- hdrver = 0; /* archive EOF type */
- writehdr(&hdr, new); /* write out our end marker */
- closearc(1); /* close archive after changes */
-
- if (note) {
- for (n = 0; n < num; n++) { /* report unused args */
- if (!did[n]) {
- printf("File not found: %s\n", arg[n]);
- nerrs++;
- }
- }
- }
- }
-
- void
- cvtfile(hdr) /* convert a file */
- struct heads *hdr; /* pointer to header data */
- {
- long starts, ftell(); /* where the file goes */
- FILE *tmp, *fopen(); /* temporary file */
-
- if (!(tmp = fopen(tempname, "w+b")))
- abort("Unable to create temporary file %s", tempname);
-
- if (note) {
- printf("Converting file: %-12s reading, ", hdr->name);
- fflush(stdout);
- }
- unpack(arc, tmp, hdr); /* unpack the entry */
- fseek(tmp, 0L, 0); /* reset temp for reading */
-
- starts = ftell(new); /* note where header goes */
- hdrver = ARCVER; /* anything but end marker */
- writehdr(hdr, new); /* write out header skeleton */
- pack(tmp, new, hdr); /* pack file into archive */
- fseek(new, starts, 0); /* move back to header skeleton */
- writehdr(hdr, new); /* write out real header */
- fseek(new, hdr->size, 1); /* skip over data to next header */
- fclose(tmp); /* all done with the file */
- if (unlink(tempname) && warn) {
- printf("Cannot unsave %s\n", tempname);
- nerrs++;
- }
- }
-