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annotate tool/archive.c @ 17:1fffae285c85

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main-pirelli.patch created
author Space Falcon <falcon@ivan.Harhan.ORG>
date Tue, 08 Sep 2015 01:56:42 +0000
parents 87e9f30f5f86
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2
058d377fc299 ti-libpatch: archive processing implemented
Space Falcon <falcon@ivan.Harhan.ORG>
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1 /*
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2 * This module implements archive processing for ti-libpatch.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include "ar.h"
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11 #include "globals.h"
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12
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13 struct ar_hdr ar_hdr;
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14
2
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15 process_archive()
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16 {
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17 FILE *inf, *outf;
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18 char ar_signature_buf[SARMAG], *cp;
2
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19
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20 inf = fopen(lib_in_filename, "r");
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21 if (!inf) {
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22 perror(lib_in_filename);
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23 exit(1);
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24 }
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25 if (fread(ar_signature_buf, 1, SARMAG, inf) != SARMAG ||
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26 strncmp(ar_signature_buf, ARMAG, SARMAG)) {
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27 fprintf(stderr, "error: %s is not an archive\n",
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28 lib_in_filename);
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29 exit(1);
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30 }
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31 outf = fopen(lib_out_filename, "w");
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32 if (!outf) {
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33 perror(lib_out_filename);
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34 exit(1);
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35 }
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36 fwrite(ar_signature_buf, 1, SARMAG, outf);
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37 while (fread(&ar_hdr, sizeof(struct ar_hdr), 1, inf)) {
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38 if (strncmp(ar_hdr.ar_fmag, ARFMAG, sizeof(ar_hdr.ar_fmag))) {
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39 fprintf(stderr, "error parsing %s: bad ar_fmag\n",
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40 lib_in_filename);
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41 exit(1);
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42 }
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43 bcopy(ar_hdr.ar_name, member_name, 16);
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44 member_name[16] = '\0';
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45 cp = index(member_name, '/');
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46 if (!cp) {
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47 fprintf(stderr,
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48 "error parsing %s: no \'/\' in ar_name[]\n",
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49 lib_in_filename);
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50 exit(1);
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51 }
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52 *cp = '\0';
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53 member_size = strtoul(ar_hdr.ar_size, 0, 10);
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54 member_body = malloc(member_size);
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55 if (!member_body) {
2
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56 fprintf(stderr,
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57 "error: unable to malloc buffer for archive member \"%s\"\n",
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58 member_name);
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59 exit(1);
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60 }
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61 if (fread(member_body, 1, member_size, inf) != member_size) {
2
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62 fprintf(stderr,
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63 "error reading the body of member \"%s\" from %s\n",
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64 member_name, lib_in_filename);
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65 exit(1);
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66 }
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67 if (member_size & 1 && getc(inf) != '\n') {
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68 fprintf(stderr,
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69 "error parsing %s: no \\n after odd-sized member \"%s\"\n",
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70 lib_in_filename, member_name);
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71 exit(1);
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72 }
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73 patch_hook();
2
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74 /* write it out */
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75 fwrite(&ar_hdr, sizeof(struct ar_hdr), 1, outf);
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76 fwrite(member_body, 1, member_size, outf);
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77 free(member_body);
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78 if (member_size & 1)
2
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79 putc('\n', outf);
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80 }
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81 fclose(inf);
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82 fclose(outf);
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83 return(0);
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84 }