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annotate srogue/makevers.c @ 75:19903deed392

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arogue5: fix the crash when checking prices in shops. A buffer called curpurch, which stores a description of an item in a trading post which the player might be interested in, was only 15 bytes. It was overflowing into oldrp, a room pointer, leading to segfaults. The size of curpurch has been increased to LINELEN*2, which matches the size of prbuf, which is returned by inv_name and then strcpy()'d to curpurch. As long as nothing overflows prbuf it should be safe now. NOTE that this breaks savefile compatibility.
author John "Elwin" Edwards <elwin@sdf.org>
date Wed, 05 Sep 2012 10:14:34 -0700
parents 2128c7dc8a40
children
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rev   line source
36
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1 /*
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2 * Change the version number of rogue
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3 *
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4 * The version must be in the file in the format of:
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5 *
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6 * " * @(#)filename\tVERSION\t ..."
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7 *
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8 * Where VERSION is a 3 character string, i.e., "8.2"
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9 *
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10 * Super-Rogue
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11 * Copyright (C) 1984 Robert D. Kindelberger
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12 * All rights reserved.
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13 *
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14 * See the file LICENSE.TXT for full copyright and licensing information.
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15 */
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16
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17 #include <stdio.h>
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18 #include <time.h>
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19
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20 long clock;
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21 struct tm *tp;
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22 char who[100];
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23
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24 char *strrchr(), *strchr(), *fgets();
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25
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26 main(argc, argv)
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27 int argc;
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28 char **argv;
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29 {
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30 register int i;
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31 register char *ptr;
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32 char ts[30];
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33 FILE *fp;
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34
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35 strcpy(who, argv[0]);
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36 if (argc < 3) {
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37 fprintf(stderr,"Usage: %s VERSION c_files\n", who);
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38 exit(1);
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39 }
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40 if (strlen(argv[1]) != 3) {
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41 fprintf(stderr,"%s: VERSION must be length 3\n", who);
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42 exit(1);
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43 }
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44 time(&clock);
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45 tp = localtime(&clock);
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46 sprintf(ts,"%2d/%2d/%2d",tp->tm_mon + 1,tp->tm_mday,tp->tm_year);
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47 for (i = 2; i < argc; i++) {
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48 ptr = strrchr(argv[i], '.');
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49 /*
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50 * make sure that files end in ".c" or ".h"
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51 */
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52 if (ptr != NULL) {
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53 ++ptr;
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54 if (*ptr == 'c' || *ptr == 'h')
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55 updvers(argv[1], argv[i]);
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56 }
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57 }
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58 /*
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59 * now install new "version.c" file
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60 */
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61 fp = fopen("vers.c", "w");
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62 if (fp == NULL) {
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63 fprintf(stderr,"%s: cant write version.c file\n",who);
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64 exit(1);
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65 }
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66 fprintf(fp, "/*\n * version number.\n */\n");
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67 fprintf(fp, "char version[] = ");
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68 fprintf(fp, "%c@(#)vers.c\t%3s\t(rdk)\t%s%c;\n", '"',
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69 argv[1], ts, '"');
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70 fprintf(fp, "char *release = \"%s (%s)\";\n", argv[1],ts);
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71 fclose(fp);
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72 exit(0);
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73 }
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74
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75 #define LINESIZ 132
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76
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77 updvers(vers, fname)
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78 char *fname;
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79 char *vers;
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80 {
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81 register FILE *fp;
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82 register char *ptr, *c;
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83 char line[LINESIZ];
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84
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85 if ((fp = fopen(fname, "r+")) == NULL) {
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86 fprintf(stderr,"%s: Not able to update %s\n", who, fname);
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87 return;
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88 }
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89 while ((c = fgets(line, LINESIZ, fp)) != NULL) {
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90 if (line[1] == '*' && line[3] == '@' && line[5] == '#') {
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91 ptr = strchr(line, '\t');
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92 if (ptr != NULL) {
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93 fseek(fp, -strlen(line), 1);
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94 sprintf(ptr, "\t%3s\t(rdk)\t%2d/%2d/%2d\n", vers,
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95 tp->tm_mon + 1, tp->tm_mday, tp->tm_year);
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96 fprintf(fp, "%s", line);
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97 break;
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98 }
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99 }
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100 }
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101 fclose(fp);
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102 }