1 | /* $Id: rest_db.pc,v 1.6 2002-05-01 04:38:03 zacheiss Exp $ |
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2 | * |
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3 | * This program restores the Moira database from an mrbackup. |
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4 | * |
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5 | * Copyright (C) 1988-1998 by the Massachusetts Institute of Technology. |
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6 | * For copying and distribution information, please see the file |
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7 | * <mit-copyright.h>. |
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8 | */ |
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9 | |
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10 | #include <mit-copyright.h> |
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11 | #include <moira.h> |
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12 | #include "dump_db.h" |
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13 | |
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14 | #include <ctype.h> |
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15 | #include <fcntl.h> |
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16 | #include <stdio.h> |
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17 | #include <string.h> |
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18 | #include <unistd.h> |
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19 | |
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20 | EXEC SQL INCLUDE sqlca; |
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21 | |
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22 | RCSID("$Header: /afs/athena.mit.edu/astaff/project/moiradev/repository/moira/backup/rest_db.pc,v 1.6 2002-05-01 04:38:03 zacheiss Exp $"); |
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23 | |
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24 | int yes_or_no(char *prompt); |
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25 | |
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26 | int main(int argc, char **argv) |
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27 | { |
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28 | char buf[BUFSIZ]; |
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29 | char *prefix; |
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30 | EXEC SQL BEGIN DECLARE SECTION; |
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31 | char *db; |
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32 | EXEC SQL END DECLARE SECTION; |
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33 | |
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34 | if (argc != 2) |
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35 | { |
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36 | fprintf(stderr, "Usage: %s database\n", argv[0]); |
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37 | exit(1); |
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38 | } |
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39 | db = argv[1]; |
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40 | |
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41 | if (!yes_or_no("Do you *REALLY* want to wipe the moira database?")) |
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42 | { |
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43 | printf("I didn't think so\n"); |
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44 | exit(1); |
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45 | } |
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46 | sprintf(buf, "Have you initialized an empty database named %s?", db); |
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47 | if (!yes_or_no(buf)) |
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48 | { |
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49 | printf("You should have\n"); |
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50 | exit(1); |
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51 | } |
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52 | |
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53 | printf("Opening database: "); |
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54 | fflush(stdout); |
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55 | EXEC SQL CONNECT :db IDENTIFIED BY :db; |
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56 | if (sqlca.sqlcode != 0) |
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57 | { |
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58 | com_err(argv[0], 0, "Database open failed"); |
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59 | exit(1); |
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60 | } |
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61 | printf(" done\n"); |
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62 | |
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63 | printf("Prefix of backup to restore: "); |
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64 | fflush(stdout); |
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65 | if (!gets(buf)) |
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66 | return 1; |
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67 | prefix = buf; |
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68 | |
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69 | if (!yes_or_no("Are you SURE?")) |
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70 | { |
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71 | printf("I didn't think so\n"); |
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72 | exit(1); |
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73 | } |
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74 | do_restores(prefix); |
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75 | printf("Restore complete\n"); |
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76 | EXEC SQL COMMIT; |
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77 | exit(0); |
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78 | /*NOTREACHED*/ |
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79 | } |
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80 | |
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81 | int yes_or_no(char *prompt) |
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82 | { |
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83 | char buf[BUFSIZ]; |
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84 | int ret; |
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85 | |
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86 | int tt = open("/dev/tty", O_RDWR, 0); |
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87 | FILE *o, *i; |
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88 | |
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89 | char *cp; |
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90 | |
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91 | if (tt < 0) |
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92 | return 0; |
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93 | |
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94 | fflush(stdout); |
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95 | fflush(stderr); |
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96 | o = fdopen(dup(tt), "w"); |
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97 | i = fdopen(dup(tt), "r"); |
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98 | close(tt); |
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99 | |
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100 | for (;;) |
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101 | { |
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102 | fprintf(o, "%s (yes or no): ", prompt); |
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103 | fflush(o); |
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104 | if (!fgets(buf, BUFSIZ, i)) |
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105 | goto err; |
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106 | for (cp = buf; *cp; cp++) |
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107 | { |
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108 | if (isupper(*cp)) |
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109 | *cp = tolower(*cp); |
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110 | } |
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111 | if (!strcmp(buf, "yes\n")) |
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112 | { |
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113 | ret = 1; |
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114 | goto out; |
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115 | } |
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116 | if (!strcmp(buf, "no\n")) |
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117 | { |
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118 | ret = 0; |
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119 | goto out; |
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120 | } |
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121 | } |
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122 | |
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123 | err: |
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124 | ret = 0; |
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125 | |
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126 | out: |
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127 | fclose(o); |
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128 | fclose(i); |
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129 | return ret; |
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130 | } |
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131 | |
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132 | int parse_int(FILE *f) |
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133 | { |
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134 | int c; |
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135 | int val = 0; |
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136 | int sign = 1; |
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137 | while ((c = getc(f)) != EOF && c != SEP_CHAR && c != '\n') |
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138 | { |
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139 | if (c == '-') |
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140 | sign = -1; |
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141 | else if (isdigit(c)) |
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142 | { |
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143 | val *= 10; |
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144 | val += (c - '0'); |
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145 | } else |
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146 | fprintf(stderr, "non-digit in numeric field\n"); |
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147 | } |
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148 | ungetc(c, f); |
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149 | return val * sign; |
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150 | } |
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151 | |
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152 | void parse_str(FILE *f, char *buf, int maxlen) |
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153 | { |
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154 | int c, len = 0; |
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155 | |
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156 | while ((c = getc(f)) != EOF && c != SEP_CHAR && c != '\n' && len < maxlen) |
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157 | { |
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158 | if (c == '\\') |
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159 | { |
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160 | c = getc(f); |
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161 | if (isdigit(c)) |
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162 | { |
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163 | /* Expect three-digit octal number.. */ |
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164 | int c1, c2; |
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165 | c1 = getc(f); |
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166 | c2 = getc(f); |
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167 | if (!isdigit(c1) || !isdigit(c2)) |
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168 | punt("Broken \\###"); |
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169 | /* Convert to ASCII code: */ |
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170 | *buf++ = ((c - '0') << 6) + ((c1 - '0') << 3) + c2 - '0'; |
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171 | len++; |
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172 | } |
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173 | else if (c == '\\' || c == SEP_CHAR) |
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174 | { |
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175 | *buf++ = c; |
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176 | len++; |
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177 | } |
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178 | else |
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179 | punt ("Broken '\\'"); |
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180 | } |
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181 | else |
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182 | { |
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183 | *buf++ = c; |
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184 | len++; |
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185 | } |
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186 | } |
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187 | *buf = '\0'; |
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188 | if (c == EOF) |
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189 | return; |
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190 | |
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191 | if (c != EOF && c != SEP_CHAR && c != '\n') |
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192 | { |
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193 | fprintf(stderr, "Field too wide, truncated\n"); |
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194 | while ((c = getc(f)) != EOF && c != SEP_CHAR && c != '\n') |
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195 | ; |
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196 | ungetc(c, f); |
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197 | } |
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198 | else |
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199 | ungetc(c, f); |
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200 | } |
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201 | |
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202 | void parse_sep(FILE *f) |
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203 | { |
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204 | if (getc(f) != SEP_CHAR) |
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205 | punt("Expected Separator"); |
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206 | } |
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207 | |
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208 | void parse_nl(FILE *f) |
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209 | { |
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210 | if (getc(f) != '\n') |
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211 | punt("Expected newline"); |
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212 | } |
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213 | |
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214 | FILE *open_file(char *prefix, char *suffix) |
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215 | { |
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216 | char name[BUFSIZ]; |
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217 | int fd; |
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218 | FILE *f; |
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219 | |
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220 | EXEC SQL COMMIT WORK; |
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221 | |
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222 | strcpy(name, prefix); |
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223 | strcat(name, suffix); |
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224 | |
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225 | fd = open(name, O_RDONLY, 0); |
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226 | if (fd < 0) |
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227 | punt(name); |
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228 | f = fdopen(fd, "r"); |
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229 | if (!f) |
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230 | { |
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231 | fprintf(stderr, "fdopen of "); |
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232 | punt(name); |
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233 | } |
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234 | fprintf(stderr, "Working on %s\n", name); |
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235 | return f; |
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236 | } |
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