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annotate tool/archive.c @ 2:058d377fc299

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ti-libpatch: archive processing implemented
author Space Falcon <falcon@ivan.Harhan.ORG>
date Fri, 05 Jun 2015 20:31:33 +0000
parents
children e33380b5bd46
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2
058d377fc299 ti-libpatch: archive processing implemented
Space Falcon <falcon@ivan.Harhan.ORG>
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1 /*
058d377fc299 ti-libpatch: archive processing implemented
Space Falcon <falcon@ivan.Harhan.ORG>
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2 * This module implements archive processing for ti-libpatch.
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Space Falcon <falcon@ivan.Harhan.ORG>
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3 */
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Space Falcon <falcon@ivan.Harhan.ORG>
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4
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Space Falcon <falcon@ivan.Harhan.ORG>
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5 #include <sys/types.h>
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Space Falcon <falcon@ivan.Harhan.ORG>
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6 #include <stdio.h>
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Space Falcon <falcon@ivan.Harhan.ORG>
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7 #include <stdlib.h>
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Space Falcon <falcon@ivan.Harhan.ORG>
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8 #include <string.h>
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Space Falcon <falcon@ivan.Harhan.ORG>
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9 #include <strings.h>
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Space Falcon <falcon@ivan.Harhan.ORG>
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10 #include "ar.h"
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Space Falcon <falcon@ivan.Harhan.ORG>
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11 #include "globals.h"
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Space Falcon <falcon@ivan.Harhan.ORG>
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12
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Space Falcon <falcon@ivan.Harhan.ORG>
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13 process_archive()
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Space Falcon <falcon@ivan.Harhan.ORG>
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14 {
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Space Falcon <falcon@ivan.Harhan.ORG>
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15 FILE *inf, *outf;
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Space Falcon <falcon@ivan.Harhan.ORG>
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16 char ar_signature_buf[SARMAG];
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Space Falcon <falcon@ivan.Harhan.ORG>
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17 struct ar_hdr ar_hdr;
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Space Falcon <falcon@ivan.Harhan.ORG>
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18 char member_name[17], *cp;
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Space Falcon <falcon@ivan.Harhan.ORG>
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19 unsigned size;
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Space Falcon <falcon@ivan.Harhan.ORG>
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20 char *buf;
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Space Falcon <falcon@ivan.Harhan.ORG>
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21
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Space Falcon <falcon@ivan.Harhan.ORG>
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22 inf = fopen(lib_in_filename, "r");
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Space Falcon <falcon@ivan.Harhan.ORG>
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23 if (!inf) {
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Space Falcon <falcon@ivan.Harhan.ORG>
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24 perror(lib_in_filename);
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Space Falcon <falcon@ivan.Harhan.ORG>
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25 exit(1);
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Space Falcon <falcon@ivan.Harhan.ORG>
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26 }
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Space Falcon <falcon@ivan.Harhan.ORG>
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27 if (fread(ar_signature_buf, 1, SARMAG, inf) != SARMAG ||
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Space Falcon <falcon@ivan.Harhan.ORG>
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28 strncmp(ar_signature_buf, ARMAG, SARMAG)) {
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Space Falcon <falcon@ivan.Harhan.ORG>
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29 fprintf(stderr, "error: %s is not an archive\n",
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Space Falcon <falcon@ivan.Harhan.ORG>
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30 lib_in_filename);
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Space Falcon <falcon@ivan.Harhan.ORG>
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31 exit(1);
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Space Falcon <falcon@ivan.Harhan.ORG>
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32 }
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Space Falcon <falcon@ivan.Harhan.ORG>
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33 outf = fopen(lib_out_filename, "w");
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Space Falcon <falcon@ivan.Harhan.ORG>
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34 if (!outf) {
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Space Falcon <falcon@ivan.Harhan.ORG>
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35 perror(lib_out_filename);
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Space Falcon <falcon@ivan.Harhan.ORG>
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36 exit(1);
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Space Falcon <falcon@ivan.Harhan.ORG>
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37 }
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Space Falcon <falcon@ivan.Harhan.ORG>
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38 fwrite(ar_signature_buf, 1, SARMAG, outf);
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Space Falcon <falcon@ivan.Harhan.ORG>
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39 while (fread(&ar_hdr, sizeof(struct ar_hdr), 1, inf)) {
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Space Falcon <falcon@ivan.Harhan.ORG>
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40 if (strncmp(ar_hdr.ar_fmag, ARFMAG, sizeof(ar_hdr.ar_fmag))) {
058d377fc299 ti-libpatch: archive processing implemented
Space Falcon <falcon@ivan.Harhan.ORG>
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41 fprintf(stderr, "error parsing %s: bad ar_fmag\n",
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Space Falcon <falcon@ivan.Harhan.ORG>
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42 lib_in_filename);
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Space Falcon <falcon@ivan.Harhan.ORG>
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43 exit(1);
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Space Falcon <falcon@ivan.Harhan.ORG>
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44 }
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Space Falcon <falcon@ivan.Harhan.ORG>
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45 bcopy(ar_hdr.ar_name, member_name, 16);
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Space Falcon <falcon@ivan.Harhan.ORG>
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46 member_name[16] = '\0';
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Space Falcon <falcon@ivan.Harhan.ORG>
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47 cp = index(member_name, '/');
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Space Falcon <falcon@ivan.Harhan.ORG>
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48 if (!cp) {
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Space Falcon <falcon@ivan.Harhan.ORG>
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49 fprintf(stderr,
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Space Falcon <falcon@ivan.Harhan.ORG>
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50 "error parsing %s: no \'/\' in ar_name[]\n",
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Space Falcon <falcon@ivan.Harhan.ORG>
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51 lib_in_filename);
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Space Falcon <falcon@ivan.Harhan.ORG>
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52 exit(1);
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Space Falcon <falcon@ivan.Harhan.ORG>
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53 }
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Space Falcon <falcon@ivan.Harhan.ORG>
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54 *cp = '\0';
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Space Falcon <falcon@ivan.Harhan.ORG>
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55 size = strtoul(ar_hdr.ar_size, 0, 10);
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Space Falcon <falcon@ivan.Harhan.ORG>
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56 buf = malloc(size);
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Space Falcon <falcon@ivan.Harhan.ORG>
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57 if (!buf) {
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Space Falcon <falcon@ivan.Harhan.ORG>
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58 fprintf(stderr,
058d377fc299 ti-libpatch: archive processing implemented
Space Falcon <falcon@ivan.Harhan.ORG>
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59 "error: unable to malloc buffer for archive member \"%s\"\n",
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Space Falcon <falcon@ivan.Harhan.ORG>
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60 member_name);
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Space Falcon <falcon@ivan.Harhan.ORG>
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61 exit(1);
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Space Falcon <falcon@ivan.Harhan.ORG>
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62 }
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Space Falcon <falcon@ivan.Harhan.ORG>
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63 if (fread(buf, 1, size, inf) != size) {
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Space Falcon <falcon@ivan.Harhan.ORG>
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64 fprintf(stderr,
058d377fc299 ti-libpatch: archive processing implemented
Space Falcon <falcon@ivan.Harhan.ORG>
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65 "error reading the body of member \"%s\" from %s\n",
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Space Falcon <falcon@ivan.Harhan.ORG>
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66 member_name, lib_in_filename);
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Space Falcon <falcon@ivan.Harhan.ORG>
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67 exit(1);
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Space Falcon <falcon@ivan.Harhan.ORG>
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68 }
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Space Falcon <falcon@ivan.Harhan.ORG>
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69 if (size & 1 && getc(inf) != '\n') {
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Space Falcon <falcon@ivan.Harhan.ORG>
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70 fprintf(stderr,
058d377fc299 ti-libpatch: archive processing implemented
Space Falcon <falcon@ivan.Harhan.ORG>
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71 "error parsing %s: no \\n after odd-sized member \"%s\"\n",
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Space Falcon <falcon@ivan.Harhan.ORG>
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72 lib_in_filename, member_name);
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Space Falcon <falcon@ivan.Harhan.ORG>
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73 exit(1);
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Space Falcon <falcon@ivan.Harhan.ORG>
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74 }
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Space Falcon <falcon@ivan.Harhan.ORG>
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75 /* the patch hook will go here */
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Space Falcon <falcon@ivan.Harhan.ORG>
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76 /* write it out */
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Space Falcon <falcon@ivan.Harhan.ORG>
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77 fwrite(&ar_hdr, sizeof(struct ar_hdr), 1, outf);
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Space Falcon <falcon@ivan.Harhan.ORG>
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78 fwrite(buf, 1, size, outf);
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Space Falcon <falcon@ivan.Harhan.ORG>
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79 free(buf);
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Space Falcon <falcon@ivan.Harhan.ORG>
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80 if (size & 1)
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Space Falcon <falcon@ivan.Harhan.ORG>
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81 putc('\n', outf);
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Space Falcon <falcon@ivan.Harhan.ORG>
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82 }
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Space Falcon <falcon@ivan.Harhan.ORG>
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83 fclose(inf);
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Space Falcon <falcon@ivan.Harhan.ORG>
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84 fclose(outf);
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Space Falcon <falcon@ivan.Harhan.ORG>
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85 return(0);
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Space Falcon <falcon@ivan.Harhan.ORG>
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86 }