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comparison test/dynload_plain/dynload_plain.c @ 214:0592eb360af2

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tests: - added dynload_plain test - added some more output to resolv_self - cleanups
author Tassilo Philipp
date Thu, 06 Apr 2017 02:13:57 +0200
parents
children cb56f077fd37
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213:98057b3b28c2 214:0592eb360af2
1 /*
2
3 Package: dyncall
4 Library: test
5 File: test/dynload_plain/dynload_plain.c
6 Description:
7 License:
8
9 Copyright (c) 2017 Tassilo Philipp <tphilipp@potion-studios.com>
10
11 Permission to use, copy, modify, and distribute this software for any
12 purpose with or without fee is hereby granted, provided that the above
13 copyright notice and this permission notice appear in all copies.
14
15 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
16 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
17 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
18 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
21 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22
23 */
24
25
26 #include "../../dynload/dynload.h"
27 #include "../common/platformInit.h"
28
29 #include <string.h>
30 #include <unistd.h>
31
32
33 int main(int argc, char* argv[])
34 {
35 int r = 0, i;
36 void* p;
37 DLLib* pLib;
38 const char* path = NULL;
39 const char* clibs[] = { // hacky/lazy list of some clib paths per platform
40 "/lib/libc.so",
41 "/lib/libc.so.6",
42 "/lib/libc.so.7",
43 "/lib64/libc.so",
44 "/lib64/libc.so.6",
45 "/lib64/libc.so.7",
46 "/lib32/libc.so",
47 "/lib32/libc.so.6",
48 "/lib32/libc.so.7",
49 "/usr/lib/libc.dylib",
50 "C:\\Windows\\system32\\msvcrt.dll"
51 };
52
53
54 for(i=0; i<(sizeof(clibs)/sizeof(const char*)); ++i) {
55 if(access(clibs[i], F_OK) != -1)
56 path = clibs[i];
57 }
58
59 if(path) {
60 printf("using clib to test at: %s\n", path);
61 ++r;
62
63 // dl*Library tests
64 // --------
65 pLib = dlLoadLibrary(path); // check if we can load a lib
66 if(pLib) {
67 printf("pLib handle: %p\n", pLib);
68 ++r;
69
70 p = dlFindSymbol(pLib, "printf"); // check if we can lookup a symbol
71 printf("printf at: %p\n", p);
72 r += (p != NULL);
73
74 dlFreeLibrary(pLib);
75 }
76 else
77 printf("unable to open library %s\n", path);
78
79
80 // dlSyms* tests (intentionally after freeing lib above, as they work standalone)
81 // --------
82 DLSyms* pSyms = dlSymsInit(path); // check if we can iterate over symbols - init
83 if(pSyms) {
84 int n;
85 const char* name;
86
87 printf("pSyms handle: %p\n", pSyms);
88 ++r;
89
90 n = dlSymsCount(pSyms); // check if there are some syms to iterate over
91 printf("num of libc symbols: %d\n", n);
92 r += (n > 0);
93
94 for(i=0; i<n; ++i) {
95 name = dlSymsName(pSyms, i);
96 if(strcmp(name, "printf") == 0) { // check if we find "printf" also in iterated symbols
97 ++r;
98 break;
99 }
100 }
101 printf("printf symbol found by iteration: %d\n", i<n);
102
103 name = dlSymsName(pSyms, i);
104 r += (strcmp(name, "printf") == 0); // check if we can lookup "printf" by index
105 printf("printf symbol name by index: %s\n", name);
106
107 pLib = dlLoadLibrary(path); // check if we can resolve ptr -> name,
108 if(pLib) { // need to lookup by name again, first
109 p = dlFindSymbol(pLib, "printf");
110 name = dlSymsNameFromValue(pSyms, p);
111 printf("printf symbol name by its own address (%p): %s\n", p, name);
112 r += (strcmp(name, "printf") == 0);
113 dlFreeLibrary(pLib);
114 }
115
116 dlSymsCleanup(pSyms);
117 }
118 else
119 printf("dlSymsInit failed\n");
120 }
121
122 // All worked if we got a score of 6 right ones
123 r = (r == 8);
124 printf("result: dynload_plain: %d\n", r);
125 return !r;
126 }
127