Mercurial > pub > dyncall > dyncall
annotate test/dynload_plain/dynload_plain.c @ 254:9d70178c1ded
- better cpp checking whether dlinfo() is available, to also cover GLIBC based systems that don't identify as Linux (e.g. debian/k*BSD)
| author | Tassilo Philipp |
|---|---|
| date | Mon, 15 May 2017 13:06:04 +0200 |
| parents | ab23f9f2934a |
| children | a94a9a83dae6 |
| rev | line source |
|---|---|
| 214 | 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> | |
| 242 | 30 #include <sys/stat.h> |
| 233 | 31 #if defined(DC_WINDOWS) |
| 32 # include <io.h> | |
| 33 # define F_OK 0 | |
| 34 #else | |
| 35 # include <unistd.h> | |
| 36 #endif | |
| 214 | 37 |
| 38 | |
| 39 int main(int argc, char* argv[]) | |
| 40 { | |
| 41 int r = 0, i; | |
| 42 void* p; | |
| 43 DLLib* pLib; | |
| 233 | 44 DLSyms* pSyms; |
| 214 | 45 const char* path = NULL; |
| 242 | 46 const char* clibs[] = { /* hacky/lazy list of some clib paths per platform */ |
| 214 | 47 "/lib/libc.so", |
|
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9d70178c1ded
- better cpp checking whether dlinfo() is available, to also cover GLIBC based systems that don't identify as Linux (e.g. debian/k*BSD)
Tassilo Philipp
parents:
248
diff
changeset
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48 "/lib/libc.so.0.1", |
| 214 | 49 "/lib/libc.so.6", |
| 50 "/lib/libc.so.7", | |
| 51 "/lib64/libc.so", | |
| 52 "/lib64/libc.so.6", | |
| 53 "/lib64/libc.so.7", | |
| 54 "/lib32/libc.so", | |
| 55 "/lib32/libc.so.6", | |
| 56 "/lib32/libc.so.7", | |
| 242 | 57 "/usr/lib/libc.so", |
| 58 "/usr/lib/libc.so.6", | |
| 59 "/usr/lib/libc.so.7", | |
|
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60 "/usr/lib/libc.so.39.3", /* hack: for OpenBSD used in dyncall test env */ |
| 242 | 61 "/usr/lib/system/libsystem_c.dylib", |
| 214 | 62 "/usr/lib/libc.dylib", |
| 248 | 63 "/boot/system/lib/libroot.so", /* Haiku */ |
| 234 | 64 "\\ReactOS\\system32\\msvcrt.dll", |
| 65 "C:\\ReactOS\\system32\\msvcrt.dll", | |
| 233 | 66 "\\Windows\\system32\\msvcrt.dll", |
| 234 | 67 "C:\\Windows\\system32\\msvcrt.dll" |
| 214 | 68 }; |
| 69 | |
| 70 | |
| 71 for(i=0; i<(sizeof(clibs)/sizeof(const char*)); ++i) { | |
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72 if(access(clibs[i], F_OK) != -1) { |
| 214 | 73 path = clibs[i]; |
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74 break; |
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75 } |
| 214 | 76 } |
| 77 | |
| 78 if(path) { | |
| 79 printf("using clib to test at: %s\n", path); | |
| 80 ++r; | |
| 81 | |
| 242 | 82 /* dl*Library tests */ |
| 83 /* ---------------- */ | |
| 84 pLib = dlLoadLibrary(path); /* check if we can load a lib */ | |
| 214 | 85 if(pLib) { |
| 242 | 86 char queriedPath[200]; /* enough for our test paths */ |
| 87 int bs; | |
| 88 | |
| 214 | 89 printf("pLib handle: %p\n", pLib); |
| 90 ++r; | |
| 91 | |
| 242 | 92 p = dlFindSymbol(pLib, "printf"); /* check if we can lookup a symbol */ |
| 214 | 93 printf("printf at: %p\n", p); |
| 94 r += (p != NULL); | |
| 95 | |
| 242 | 96 bs = dlGetLibraryPath(pLib, queriedPath, 200); |
| 97 if(bs && bs <= 200) { | |
| 98 struct stat st0, st1; /* to check if same file */ | |
| 99 int b; | |
| 100 printf("path of lib looked up via handle: %s\n", queriedPath); | |
| 101 b = (stat(path, &st0) != -1) && (stat(queriedPath, &st1) != -1); | |
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102 printf("lib (inode:%d) and looked up lib (inode:%d) are same: %d\n", b?st0.st_ino:-1, b?st1.st_ino:-1, b && (st0.st_ino == st1.st_ino)); //@@@ on windows, inode numbers returned here are always 0 |
| 242 | 103 r += b && (st0.st_ino == st1.st_ino); /* compare if same lib using inode */ |
| 104 /*@@@ check of resolved path is absolute*/ | |
| 105 | |
| 106 /* check correct bufsize retval */ | |
| 107 b = (bs == strlen(queriedPath) + 1); | |
| 108 printf("looked up path's needed buffer size (%d) computed correctly: %d\n", bs, b); | |
| 109 r += b; | |
| 110 } | |
| 111 else | |
| 112 printf("failed to query lib path using lib's handle\n"); | |
| 113 | |
| 214 | 114 dlFreeLibrary(pLib); |
| 115 } | |
| 116 else | |
| 117 printf("unable to open library %s\n", path); | |
| 118 | |
| 119 | |
| 242 | 120 /* dlSyms* tests (intentionally after freeing lib above, as they work standalone) */ |
| 121 /* ------------- */ | |
| 122 pSyms = dlSymsInit(path); /* check if we can iterate over symbols - init */ | |
| 214 | 123 if(pSyms) { |
| 124 int n; | |
| 125 const char* name; | |
| 126 | |
| 127 printf("pSyms handle: %p\n", pSyms); | |
| 128 ++r; | |
| 129 | |
| 242 | 130 n = dlSymsCount(pSyms); /* check if there are some syms to iterate over */ |
| 214 | 131 printf("num of libc symbols: %d\n", n); |
| 132 r += (n > 0); | |
| 133 | |
| 134 for(i=0; i<n; ++i) { | |
| 135 name = dlSymsName(pSyms, i); | |
| 242 | 136 if(name && strcmp(name, "printf") == 0) { /* check if we find "printf" also in iterated symbols */ |
| 214 | 137 ++r; |
| 138 break; | |
| 139 } | |
| 140 } | |
| 141 printf("printf symbol found by iteration: %d\n", i<n); | |
| 142 | |
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143 name = (i<n) ? dlSymsName(pSyms, i) : NULL; |
| 242 | 144 r += (name && strcmp(name, "printf") == 0); /* check if we can lookup "printf" by index */ |
| 218 | 145 printf("printf symbol name by index: %s\n", name?name:""); |
| 214 | 146 |
| 242 | 147 pLib = dlLoadLibrary(path); /* check if we can resolve ptr -> name, */ |
| 148 if(pLib) { /* need to lookup by name again, first */ | |
| 214 | 149 p = dlFindSymbol(pLib, "printf"); |
| 150 name = dlSymsNameFromValue(pSyms, p); | |
| 218 | 151 printf("printf symbol name by its own address (%p): %s\n", p, name?name:""); |
| 152 r += (name && strcmp(name, "printf") == 0); | |
| 214 | 153 dlFreeLibrary(pLib); |
| 154 } | |
| 155 | |
| 156 dlSymsCleanup(pSyms); | |
| 157 } | |
| 158 else | |
| 159 printf("dlSymsInit failed\n"); | |
| 160 } | |
| 161 | |
| 242 | 162 /* Check final score of right ones to see if all worked */ |
| 163 r = (r == 10); | |
| 214 | 164 printf("result: dynload_plain: %d\n", r); |
| 165 return !r; | |
| 166 } | |
| 167 |