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https://github.com/rcornwell/sims.git
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289 lines
11 KiB
C
289 lines
11 KiB
C
/*
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* fmgrcopy.c
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*
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* This program scans a metatape file and prints file count and sizes.
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* In addition, it creats a director for each username specified in
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* the filemanager tape and then creates a file containing the file
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* contents. The file must be an filemgr save tape and not an SDT
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* tape.
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* input - stdin or specified filename
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* output - stdout
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*/
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#include <stdio.h>
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#include <sys/file.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <ctype.h>
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#include <errno.h>
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int lfilen, filen = 1;
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int EOFcnt = 0;
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int count=0, lcount=0;
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int size=0, tsize=0;
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int size_512K = 512 * 1024;
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int ln;
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#ifdef USE_READ
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FILE *infp;
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#else
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int inp, outp;
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#endif
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#define PRINTABLE(x) ((x < 32) || (x > 126)) ? '.' : x
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/* get a line of input. */
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int getloi(char *s, int lim)
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{
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int c, i;
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int32_t n1, n2, hc, tc, n;
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errno = 0;
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/* read the byte count in 32 bit word as header */
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n1 = read(inp, (char *)(&hc), (size_t)sizeof(hc));
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if (n1 <= 0)
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hc = -1; /* at EOM on disk file */
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/* check for EOF & EOM on tape data */
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if (hc & 0xffff0000) /* check for garbage, assume EOM */
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hc = -1; /* at EOM on disk file */
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/* check for EOF & EOM on tape data */
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if (hc == 0) {
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/* we are at tape EOF */
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if (++EOFcnt < 2) { /* if 1st EOF, print file info */
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lfilen = filen;
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filen++; /* set next file number */
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}
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count = 0; /* file record count back to zero */
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lcount = 0; /* last record count back to zero */
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tsize += size; /* add to total tape size */
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size = 0; /* file size back to zero */
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ln = -1; /* set ln to -1 showing we are at EOF */
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/* we have EOF */
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return 0; /* return EOF on tape data */
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}
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if (hc == -1)
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return -1; /* at EOM on disk file */
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/* read the data */
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n = read(inp, s, (size_t)hc);
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/* read the byte count in 32 bit word as trailer */
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n2 = read(inp, (char *)(&tc), (size_t)sizeof(tc));
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count++; /* bump record count */
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size += n; /* update bytes read */
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EOFcnt = 0; /* not an EOF */
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if (n != ln) {
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ln = n;
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lcount = count;
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}
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/* return bytes in buffer */
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return n;
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}
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int main (int argc, char *argv[])
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{
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char *buf;
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size_t size_512K = 512 * 1024;
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size_t buf_size = 512 * 1024;
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char *cp, *np;
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int ll;
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char path[64], command[128];
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if (argc != 2) {
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//fprintf(stderr, "usage: %s infile\n", argv[0]);
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printf("usage: %s infile\n", argv[0]);
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exit(1);
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} /* end of if */
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if ((inp = open(argv[1], O_RDONLY, 0666)) < 0) {
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//fprintf(stderr,"%s: fopen: unable to open input file %s\n", argv[0], argv[1]);
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printf("%s: fopen: unable to open input file %s\n", argv[0], argv[1]);
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return (1);
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}
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outp = -1;
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/* get a 512k buffer */
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if ((buf = malloc(buf_size)) == NULL) {
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//fprintf(stderr, "Can't allocate memory for tscan\n");
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printf("Can't allocate memory for tscan\n");
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return (4);
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}
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/* init counts */
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ln = -2; /* look for 2 eof */
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count = 0;
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size = 0;
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tsize = 0;
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lcount = 0;
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filen = 1;
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lfilen = 0;
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printf("\nfile %d:\n", filen);
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/* get lines until eof */
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while ((ll=getloi(buf, buf_size)) != EOF) {
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if (ll == 0) {
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/* eof found, process new file */
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printf("\nfile %d:\n", filen);
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} else {
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int cc = 0;
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unsigned int curchar;
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/* filemgr smd entries are 8 words, and are in 1152 words (4608 bytes)
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* (6 sector) blocks. Saved data files are modulo 1152 words also */
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/* 8 wds per SMD entry, 24 entries per sector, 144 entries per 6 sector
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* block. */
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int i, j, m;
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// if (filen == 1)
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{
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/* read smd entry */
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char file[20], dir[20];
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int l = 0;
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int smddone = 0;
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int totent = 0;
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char *buf2 = buf;
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printf("\nfile %d:\n", filen);
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/* see how man entries here */
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while(!smddone) {
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/* process entries in this record */
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for (j=0; j<144; j++) {
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int k = l++ * 32;
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int w1 = (buf[k+13] & 0xff) << 16 | (buf[k+14] & 0xff) << 8 | (buf[k+15] & 0xff);
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/* stop processing on first zero smd entry */
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if (w1 <= 0) {
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smddone = 1;
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break;
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}
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totent++;
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/* get file/dir name */
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for (i=0; i<8; i++) {
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file[i] = tolower(buf[k+0+i]);
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if (file[i] == ' ')
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file[i] = '\0';
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}
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file[8] = '\0';
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for (i=0; i<8; i++) {
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dir[i] = tolower(buf[k+0+16+i]);
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if (dir[i] == ' ')
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dir[i] = '\0';
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}
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dir[8] = '\0';
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if (dir[0] == '\0')
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sprintf(dir, "%s", "system");
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sprintf(path, "./%s/%s", dir, file);
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// see if active file
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if ((buf[k+12] & 0x80) == 0)
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// not active goon
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printf("inactive file: w1 = %d path = %s\n", w1, path);
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else
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printf("active file: w1 = %d path = %s\n", w1, path);
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}
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if (smddone)
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break;
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buf2 += 4608; /* next buffer */
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ll=getloi(buf2, 4608);
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}
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printf("%d smd entries found\n", totent);
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/* we have directory entries */
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for (j=0; j<totent; j++) {
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int k = j * 32;
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/* get file size in blocks */
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int w1 = (buf[k+13] & 0xff) << 16 | (buf[k+14] & 0xff) << 8 | (buf[k+15] & 0xff);
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int blks = w1; /* save block count */
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/* get file/dir name */
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for (i=0; i<8; i++) {
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file[i] = tolower(buf[k+0+i]);
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if (file[i] == ' ')
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file[i] = '\0';
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}
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file[8] = '\0';
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for (i=0; i<8; i++) {
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dir[i] = tolower(buf[k+0+16+i]);
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if (dir[i] == ' ')
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dir[i] = '\0';
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}
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dir[8] = '\0';
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if (dir[0] == '\0')
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sprintf(dir, "%s", "system");
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sprintf(path, "./%s", dir);
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// see if active file
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if ((buf[k+12] & 0x80) == 0) {
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// not active goon
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printf("inactive file: w1 = %d\n", w1);
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}
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printf("active file: w1 = %d\n", w1);
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if (w1 <= 0)
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break;
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/* create the directory/file */
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printf("path = %s\n", path);
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sprintf(command, "mkdir -p %s", path);
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printf("command = %s\n", command);
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system(command);
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sprintf(path, "./%s/%s", dir, file);
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printf("file %d = %s\n", j+1, path);
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sprintf(command, "touch %s", path);
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printf("command = %s\n", command);
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system(command);
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if (outp >= 0)
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close(outp);
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outp = -1;
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#ifndef DO_LATER
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/* open output file, create it if necessary */
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if ((outp = open(path, O_WRONLY|O_CREAT|O_TRUNC, 0666)) < 0) {
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//fprintf(stderr, "Can't open %s\n", path);
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printf("Can't open %s\n", path);
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close(inp);
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free(buf);
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return (3);
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}
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#endif
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/* get the file data */
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for (m=0; m<((w1+5)/6); m++) {
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char data[5000]; /* data buffer */
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ll=getloi(data, 4608);
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/* process file data for file */
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if (ll == 4608) {
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#ifndef DO_LATER
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/* blks/w1 have number of blocks to write */
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int bcnt, no; /* block count */
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if (blks >= 6) {
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blks -= 6; /* enough for 6 block, write them */
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bcnt = 6*768; /* write all 6 blocks */
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} else {
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bcnt = blks*768;/* just write what we need */
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blks = 0;
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}
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/* only write number of sectors on save tape, not all 4608 */
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/* if zero, just reading excess blocks */
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if (bcnt != 0) {
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no = write(outp, data, bcnt);
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if (no != bcnt)
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// fprintf(stderr, "write (%d) != read (%d) on file %s\n", no, bcnt, path);
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printf("write (%d) != read (%d) on file %s\n", no, bcnt, path);
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}
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#else
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printf("read (%d) on file %s\n", ll, path);
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#endif
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} else {
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printf("Bad file size read! %d instead of 4608\n", ll);
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/// if (ll == -1) break;
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if (ll == -1)
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goto dostop;
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}
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} /* end writing file */
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} /* end of smd scan */
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} /* read smd entries 4608 byte records */
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} /* process read of smd or sdt */
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} /* end of getloi read */
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dostop:
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close(inp);
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free(buf);
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if (outp >= 0)
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close(outp);
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exit(0);
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}
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