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annotate ui/listutil.c @ 16:225a5ec20dad

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author Andre Heinecke <aheinecke@intevation.de>
date Wed, 19 Feb 2014 10:45:29 +0000
parents 58d51a91d448
children
rev   line source
4
9849250f50f2 Start implementation of certificatelist parser
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
1 #include "listutil.h"
9849250f50f2 Start implementation of certificatelist parser
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2
9849250f50f2 Start implementation of certificatelist parser
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3 #include <stdio.h>
9849250f50f2 Start implementation of certificatelist parser
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4 #include <stdlib.h>
9849250f50f2 Start implementation of certificatelist parser
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5 #include <errno.h>
9849250f50f2 Start implementation of certificatelist parser
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6 #include <fcntl.h>
9849250f50f2 Start implementation of certificatelist parser
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7 #include <unistd.h>
9849250f50f2 Start implementation of certificatelist parser
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8 #include <sys/types.h>
9849250f50f2 Start implementation of certificatelist parser
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9 #include <sys/stat.h>
7
992c0ec57660 Add unit tests make CertificateList work.
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parents: 4
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10 #include <string.h>
4
9849250f50f2 Start implementation of certificatelist parser
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11
9849250f50f2 Start implementation of certificatelist parser
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12 #define MAX_FILESIZE_KB 1024
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13
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14 void handle_errno()
9849250f50f2 Start implementation of certificatelist parser
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15 {
9849250f50f2 Start implementation of certificatelist parser
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16 printf("Error: %s \n", strerror(errno));
9849250f50f2 Start implementation of certificatelist parser
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17 }
9849250f50f2 Start implementation of certificatelist parser
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18
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19 list_status_t readList(const char *fileName, char **data, size_t *size)
4
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20 {
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21 int fd = -1;
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22 struct stat fileStat;
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23 int rc = 0;
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24 ssize_t bRead = 0;
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992c0ec57660 Add unit tests make CertificateList work.
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25
992c0ec57660 Add unit tests make CertificateList work.
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26 memset(&fileStat, 0, sizeof(fileStat));
992c0ec57660 Add unit tests make CertificateList work.
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27
4
9849250f50f2 Start implementation of certificatelist parser
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28 list_status_t retval = UnknownError;
9849250f50f2 Start implementation of certificatelist parser
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29
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30 fd = open(fileName, O_RDONLY);
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31 if (fd == -1) {
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32 handle_errno();
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33 retval = StatFailed;
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992c0ec57660 Add unit tests make CertificateList work.
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34 goto cleanup;
4
9849250f50f2 Start implementation of certificatelist parser
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35 }
9849250f50f2 Start implementation of certificatelist parser
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36
9849250f50f2 Start implementation of certificatelist parser
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37 rc = fstat(fd, &fileStat);
9849250f50f2 Start implementation of certificatelist parser
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38 if (rc < 0) {
9849250f50f2 Start implementation of certificatelist parser
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39 printf ("Stat failed with rc: %i\n", rc);
9849250f50f2 Start implementation of certificatelist parser
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40 retval = StatFailed;
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41 goto cleanup;
4
9849250f50f2 Start implementation of certificatelist parser
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42 }
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43
9849250f50f2 Start implementation of certificatelist parser
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44 // Check the size of the file
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45 if (!fileStat.st_size) {
4
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46 printf("Size zero\n");
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47 retval = StatFailed;
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48 goto cleanup;
4
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49 }
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50
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51 if (fileStat.st_size / 1024 > MAX_FILESIZE_KB &&
992c0ec57660 Add unit tests make CertificateList work.
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52 fileStat.st_size > 0) {
4
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53 printf("File too large\n");
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54 retval = TooLarge;
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55 goto cleanup;
4
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56 }
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57
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58 *size = (size_t) fileStat.st_size;
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59
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60 *data = (char*) malloc(*size);
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61
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62 if (*data == NULL) {
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63 printf("Malloc failed\n");
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64 retval = UnknownError;
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65 goto cleanup;
4
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66 }
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67
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68 bRead = read(fd, *data, *size);
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69
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70 if (bRead < 0 || (size_t) bRead != *size) {
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71 printf("Read failed\n");
4
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72 if (bRead == -1) {
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73 handle_errno();
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74 }
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75 retval = UnknownError;
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76 *size = 0;
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77 if (*data) {
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78 free(*data);
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79 printf("Nulling data\n");
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80 *data = NULL;
4
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81 }
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82 goto cleanup;
4
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83 }
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84
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58d51a91d448 Change Unknown state to UnknownValidity to avoid name clashes
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85 retval = UnknownValidity;
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86 cleanup:
4
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87
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88 if (fd && fd != -1) {
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89 close(fd);
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90 fd = -1;
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91 }
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92
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93 return retval;
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94 }
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95
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96 list_status_t readAndVerifyList(const char *fileName, char **data, size_t *size)
4
9849250f50f2 Start implementation of certificatelist parser
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97 {
7
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98 // int validSig = 0;
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99 char * signature = NULL;
4
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100
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101 list_status_t retval = UnknownError;
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102 *data = NULL;
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103 *size = 0;
4
9849250f50f2 Start implementation of certificatelist parser
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104
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105 retval = readList(fileName, data, size);
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106
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107 if (retval != UnknownValidity) {
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108 printf ("Readlist failed\n");
4
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109 return retval;
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110 }
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111
7
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112 if (!data || !*size) {
4
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113 // should not have happend if readList works as specified
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114 return UnknownError;
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115 }
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116
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117 signature = *data;
4
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118
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119 if (*signature != 'S') {
4
9849250f50f2 Start implementation of certificatelist parser
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120 printf("Does not start with S\n");
9849250f50f2 Start implementation of certificatelist parser
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121 retval = InvalidFormat;
7
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122 goto cleanup;
4
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123 }
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124
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125 // TODO VERIFIY
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126 retval = Valid;
4
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127
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128 // Maybe check if all bytes are < 127 and > 0
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129
7
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130 cleanup:
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131 if (retval != Valid && *data) {
992c0ec57660 Add unit tests make CertificateList work.
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132 free(*data);
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133 *data = NULL;
4
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134 *size = 0;
9849250f50f2 Start implementation of certificatelist parser
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135 }
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136 return retval;
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137 }
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138
http://wald.intevation.org/projects/trustbridge/