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annotate cinst/main.c @ 61:b8cd573bd3ac

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Fix check for malloc result, found by cppcheck.
author Bernhard Reiter <bernhard@intevation.de>
date Tue, 18 Mar 2014 14:05:17 +0100
parents 6acb1dae6185
children fb9f78f7ab2f
rev   line source
25
92108a2120f1 Move certificatelist to common. Add cinst directory
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1 /** @brief Main entry point for the cinst process.
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2 *
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3 * The cinst process may or may not be run with elevated
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4 * privileges. When run with elevated privileges this
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5 * process will modify system wide certificate stores.
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6 * Otherwise only the users certificate stores are modified.
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7 *
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8 * It expects a certificatelist on stdin enclosed in a
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9 * -----BEGIN CERTIFICATE LIST-----
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10 * ...
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11 * -----END CERTIFICATE LIST-----
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12 *
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13 * Followed by additional instruction lines of:
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14 * I:<certificate>
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15 * R:<certificate>
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16 *
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17 * It will only execute the instructions if the
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18 * I and R instructions are also part of the signed
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19 * certificate list. The signature is validated with the
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20 * built in key.
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21 *
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22 * The special instruction "UNINSTALL" will cause the installer
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23 * to remove all certificates (Even those marked with I) that
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24 * are part of the list to be removed.
25
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25 *
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26 **/
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27 #define MAX_LINE_LENGTH 1000
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28 #define MAX_LINES 1000
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29 #define MAX_INPUT_SIZE 2000000 /* MAX_LINE_LENGTH * (MAX_LINES *2) */
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30
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31 #include <stdio.h>
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32 #include <string.h>
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33 #include <assert.h>
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34
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35 #include "strhelp.h"
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36 #include "listutil.h"
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37 #include "errorcodes.h"
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38
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39 /* @brief Read stdin into data structures.
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40 *
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41 * Reads from stdin and sorts the input into the respective
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42 * variables. The pointers returned need to be freed by the caller.
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43 * Terminates in OOM conditions.
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44 *
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45 * The caller needs to free the memory allocated by this function
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46 * even when an error is returned.
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47 *
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48 * @returns: 0 on success. An error code otherwise.
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49 */
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50 int readInput(char **certificateList, char ***to_install,
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51 char ***to_remove)
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52 {
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53 int lines_read = 0;
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54 int readingList = 0;
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55 char buf[MAX_LINE_LENGTH + 1];
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56
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57 while (fgets(buf, MAX_LINE_LENGTH + 1, stdin)) {
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58 size_t len = strlen(buf); /* fgets ensures buf is terminated */
59
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59 if (lines_read ++ > MAX_LINES) {
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60 printf("Too many lines\n");
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61 return ERR_TOO_MUCH_INPUT;
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62 }
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63 if (strcmp("-----BEGIN CERTIFICATE LIST-----", buf) == 0){
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64 readingList = 1;
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65 continue;
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66 }
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67 if (strcmp("-----END CERTIFICATE LIST-----", buf) == 0){
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68 readingList = 0;
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69 continue;
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70 }
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71 if (readingList) {
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72 str_append_str(certificateList, buf, len);
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73 continue;
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74 }
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75 if (*buf == 'I') {
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76 array_append_str(to_install, buf+2, len - 2);
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77 continue;
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78 }
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79 if (*buf == 'R') {
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80 array_append_str(to_remove, buf+2, len - 2);
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81 continue;
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82 }
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83 if (strcmp("UNINSTALL", buf) == 0) {
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84 array_append_str(to_remove, buf, len - 2);
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85 }
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86 }
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87
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88 return 0;
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89 }
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90
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91 int main() {
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92
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93 char **to_install = NULL;
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94 char **to_remove = NULL;
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95 char *certificateList = NULL;
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96 int ret = -1;
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97
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98 ret = readInput(&certificateList, &to_install, &to_remove);
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99
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100 if (ret != 0) {
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101 return ret;
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102 }
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103
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104 if (!certificateList) {
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105 return ERR_INVALID_INPUT_NO_LIST;
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106 }
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107
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108 ret = verify_list(certificateList, strlen(certificateList));
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109
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110 printf ("Verify List returned %i\n", ret);
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111
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112 return 0;
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113 }
http://wald.intevation.org/projects/trustbridge/