FreeCalypso > hg > freecalypso-tools

annotate target-utils/libtiffs/rdinmem.c @ 416:30f6d1c32c6f

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doc/Flash-boot-defect article removed (no longer relevant) This article is no longer relevant because the issue in question only affected one (1) defective FCDEV3B board which was not and never will be sold.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 26 Oct 2018 07:11:08 +0000
parents 9214118ae941
children
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Mychaela Falconia <falcon@freecalypso.org>
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1 #include <sys/types.h>
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2 #include "types.h"
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3 #include "struct.h"
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4 #include "globals.h"
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5 #include "macros.h"
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6
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7 tiffs_read_into_ram(pathname, buf, maxlen, lenrtn)
0
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8 char *pathname;
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9 u8 *buf;
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10 size_t maxlen, *lenrtn;
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11 {
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12 int stat, cont;
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13 u8 *chunk_start;
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14 size_t chunk_size, real_len, roomleft;
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16 stat = tiffs_find_file(pathname, &chunk_start, &chunk_size, &cont);
0
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17 if (stat < 0)
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18 return(stat);
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19 if (chunk_size > maxlen) {
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20 toobig: printf("Error: %s is bigger than the read buffer\n", pathname);
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21 return(-1);
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22 }
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23 real_len = chunk_size;
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24 memcpy(buf, chunk_start, chunk_size);
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25 buf += chunk_size;
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26 roomleft = maxlen - chunk_size;
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27 while (cont) {
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28 stat = tiffs_get_segment(cont, &chunk_start, &chunk_size,
0
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29 &cont);
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30 if (stat < 0)
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31 return(stat);
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32 if (chunk_size > roomleft)
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33 goto toobig;
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34 real_len += chunk_size;
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35 memcpy(buf, chunk_start, chunk_size);
0
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36 buf += chunk_size;
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37 roomleft -= chunk_size;
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38 }
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39 if (lenrtn)
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40 *lenrtn = real_len;
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41 return(0);
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42 }