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annotate src/run.combined.c @ 27:5ba185ca7102

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Fixed error checking during initialization, restructured code a bit to make it even simpler
author Ivo Smits <Ivo@UCIS.nl>
date Sat, 09 Apr 2011 17:36:48 +0200
parents 65c01f57bdce
children 6f0e6b7dc088
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1 /* Copyright 2010 Ivo Smits <Ivo@UCIS.nl>. All rights reserved.
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2 Redistribution and use in source and binary forms, with or without modification, are
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3 permitted provided that the following conditions are met:
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4
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5 1. Redistributions of source code must retain the above copyright notice, this list of
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6 conditions and the following disclaimer.
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7
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8 2. Redistributions in binary form must reproduce the above copyright notice, this list
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9 of conditions and the following disclaimer in the documentation and/or other materials
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10 provided with the distribution.
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11
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12 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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13 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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14 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR
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15 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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16 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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17 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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18 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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19 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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20 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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21
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22 The views and conclusions contained in the software and documentation are those of the
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23 authors and should not be interpreted as representing official policies, either expressed
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24 or implied, of Ivo Smits.*/
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25
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26 #include "common.c"
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27
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28 struct qtproto qtproto_raw;
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29 struct qtproto qtproto_nacl0;
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30 struct qtproto qtproto_nacltai;
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31
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32 #ifdef DEBIAN_BINARY
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33 char* getenvdeb(const char* name) {
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34 char tmp[1024] = "IF_QT_";
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35 if (strcmp(name, "INTERFACE") == 0) return getenv("IFACE");
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36 if (strlen(tmp) + strlen(name) >= 1024) {
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37 fprintf(stderr, "Error: prefixed environment variable name is too long");
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38 return NULL;
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39 }
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40 strcat(tmp, name);
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41 return getenv(tmp);
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42 }
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43 #endif
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44
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45 int main() {
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46 print_header();
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47 #ifdef DEBIAN_BINARY
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48 getconf = getenvdeb;
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49 #else
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50 getconf = getenv;
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51 #endif
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52 char* envval;
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53 if (envval = getconf("PROTOCOL")) {
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54 if (strcmp(envval, "raw") == 0) {
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55 return qtrun(&qtproto_raw);
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56 } else if (strcmp(envval, "nacl0") == 0) {
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57 return qtrun(&qtproto_nacl0);
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58 } else if (strcmp(envval, "nacltai") == 0) {
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59 return qtrun(&qtproto_nacltai);
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60 } else {
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61 fprintf(stderr, "Unknown protocol specified: %s\n", envval);
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62 return -1;
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63 }
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64 } else if (getconf("PRIVATE_KEY")) {
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65 return qtrun(&qtproto_nacl0);
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66 } else {
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67 return qtrun(&qtproto_raw);
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68 }
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69 }