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214
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1 /*
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2
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3 Package: dyncall
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4 Library: test
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5 File: test/dynload_plain/dynload_plain.c
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6 Description:
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7 License:
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8
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9 Copyright (c) 2017 Tassilo Philipp <tphilipp@potion-studios.com>
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10
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11 Permission to use, copy, modify, and distribute this software for any
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12 purpose with or without fee is hereby granted, provided that the above
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13 copyright notice and this permission notice appear in all copies.
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14
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15 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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16 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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17 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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18 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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21 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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22
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23 */
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24
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25
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26 #include "../../dynload/dynload.h"
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27 #include "../common/platformInit.h"
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28
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29 #include <string.h>
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30 #include <unistd.h>
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31
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32
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33 int main(int argc, char* argv[])
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34 {
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35 int r = 0, i;
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36 void* p;
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37 DLLib* pLib;
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38 const char* path = NULL;
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39 const char* clibs[] = { // hacky/lazy list of some clib paths per platform
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40 "/lib/libc.so",
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41 "/lib/libc.so.6",
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42 "/lib/libc.so.7",
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43 "/lib64/libc.so",
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44 "/lib64/libc.so.6",
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45 "/lib64/libc.so.7",
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46 "/lib32/libc.so",
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47 "/lib32/libc.so.6",
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48 "/lib32/libc.so.7",
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49 "/usr/lib/libc.dylib",
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50 "C:\\Windows\\system32\\msvcrt.dll"
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51 };
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52
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53
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54 for(i=0; i<(sizeof(clibs)/sizeof(const char*)); ++i) {
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55 if(access(clibs[i], F_OK) != -1)
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56 path = clibs[i];
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57 }
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58
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59 if(path) {
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60 printf("using clib to test at: %s\n", path);
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61 ++r;
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62
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63 // dl*Library tests
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64 // --------
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65 pLib = dlLoadLibrary(path); // check if we can load a lib
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66 if(pLib) {
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67 printf("pLib handle: %p\n", pLib);
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68 ++r;
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69
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70 p = dlFindSymbol(pLib, "printf"); // check if we can lookup a symbol
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71 printf("printf at: %p\n", p);
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72 r += (p != NULL);
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73
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74 dlFreeLibrary(pLib);
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75 }
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76 else
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77 printf("unable to open library %s\n", path);
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78
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79
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80 // dlSyms* tests (intentionally after freeing lib above, as they work standalone)
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81 // --------
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82 DLSyms* pSyms = dlSymsInit(path); // check if we can iterate over symbols - init
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83 if(pSyms) {
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84 int n;
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85 const char* name;
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86
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87 printf("pSyms handle: %p\n", pSyms);
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88 ++r;
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89
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90 n = dlSymsCount(pSyms); // check if there are some syms to iterate over
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91 printf("num of libc symbols: %d\n", n);
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92 r += (n > 0);
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93
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94 for(i=0; i<n; ++i) {
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95 name = dlSymsName(pSyms, i);
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218
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96 if(name && strcmp(name, "printf") == 0) { // check if we find "printf" also in iterated symbols
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214
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97 ++r;
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98 break;
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99 }
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100 }
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101 printf("printf symbol found by iteration: %d\n", i<n);
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102
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103 name = dlSymsName(pSyms, i);
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218
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104 r += (name && strcmp(name, "printf") == 0); // check if we can lookup "printf" by index
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105 printf("printf symbol name by index: %s\n", name?name:"");
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214
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106
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107 pLib = dlLoadLibrary(path); // check if we can resolve ptr -> name,
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108 if(pLib) { // need to lookup by name again, first
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109 p = dlFindSymbol(pLib, "printf");
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110 name = dlSymsNameFromValue(pSyms, p);
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218
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111 printf("printf symbol name by its own address (%p): %s\n", p, name?name:"");
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112 r += (name && strcmp(name, "printf") == 0);
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214
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113 dlFreeLibrary(pLib);
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114 }
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115
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116 dlSymsCleanup(pSyms);
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117 }
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118 else
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119 printf("dlSymsInit failed\n");
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120 }
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121
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122 // All worked if we got a score of 6 right ones
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123 r = (r == 8);
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124 printf("result: dynload_plain: %d\n", r);
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125 return !r;
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126 }
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127
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