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/*
* ARC - Archive utility - ARCCVT
*
* Version 1.16, created on 02/03/86 at 22:53:02
*
* (C) COPYRIGHT 1985-87 by System Enhancement Associates.
* You may copy and distribute this program freely,
* under the terms of the General Public License.
*
* 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>
#if _MTS
#include <mts.h>
#endif
#include "arc.h"
int match(), readhdr(), unpack(), unlink();
VOID openarc(), rempath(), closearc(), arcdie(), pack();
VOID writehdr(), filecopy();
static VOID cvtfile();
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 */
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++;
}
}
}
}
static 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")))
arcdie("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 */
#if _MTS
atoe(hdr->name, FNLEN); /* writehdr translated this... */
#endif
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++;
}
}
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