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annotate ueda/libuschem/graphblocks.c @ 130:c165882efdf1

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CONN__Sunridge_SMAJX103.fp created
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 30 Jul 2020 19:56:24 +0000
parents cd92449fdb51
children
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cd92449fdb51 initial import of ueda and ifctf-part-lib from ifctfvax CVS
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1 /*
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2 * utility functions for working with graphical blocks
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3 */
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4
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5 #include <sys/param.h>
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6 #include <stdio.h>
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7 #include "schemstruct.h"
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8
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9 FILE *
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10 reopen_schem_for_graphblocks(schem)
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11 struct schem *schem;
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12 {
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13 register FILE *f;
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14
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15 if (!schem->has_graphblocks)
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16 return(NULL);
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17 f = fopen(schem->orig_filename, "r");
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18 if (!f) {
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19 fprintf(stderr, "Unable to reopen %s for graphblocks: ",
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20 schem->orig_filename);
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21 perror(NULL);
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22 exit(1);
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23 }
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24 return(f);
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25 }
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26
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27 write_graphblock_to_file(blk, inf, outf)
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28 struct graphblock *blk;
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29 register FILE *inf, *outf;
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30 {
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31 char buf[512];
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32 register int cc, rem;
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33
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34 fseek(inf, blk->offset, 0);
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35 for (rem = blk->length; rem; rem -= cc) {
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36 cc = MIN(rem, sizeof buf);
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37 fread(buf, 1, cc, inf);
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38 fwrite(buf, 1, cc, outf);
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39 }
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40 }