Mercurial > pub > dyncall > dyncall
annotate test/dynload_plain/dynload_plain.c @ 410:7608e34098b0
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* return status code depending on test results (for actual conformance tests, not stuff that is not an example or hack to check something, ..)
* platform init helper added for some
| author | Tassilo Philipp |
|---|---|
| date | Tue, 05 Oct 2021 21:53:04 +0200 |
| parents | dd5d03483314 |
| children |
| rev | line source |
|---|---|
| 214 | 1 /* |
| 2 | |
| 3 Package: dyncall | |
| 4 Library: test | |
| 5 File: test/dynload_plain/dynload_plain.c | |
| 281 | 6 Description: |
| 214 | 7 License: |
| 8 | |
|
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9 Copyright (c) 2017-2021 Tassilo Philipp <tphilipp@potion-studios.com> |
| 214 | 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" | |
|
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28 #include "../common/platformInit.c" /* Impl. for functions only used in this translation unit */ |
| 214 | 29 |
| 30 #include <string.h> | |
| 242 | 31 #include <sys/stat.h> |
| 233 | 32 #if defined(DC_WINDOWS) |
| 33 # include <io.h> | |
| 34 # define F_OK 0 | |
| 35 #else | |
| 36 # include <unistd.h> | |
| 37 #endif | |
|
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38 |
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39 #if defined(DC_WINDOWS) |
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40 char* dirname(char* path) |
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41 { |
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42 static const char dot[] = "."; |
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43 char* p = strrchr(path, '\\'); |
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44 if(p) |
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45 *p = '\0'; |
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46 else |
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47 path = (char*)dot; |
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48 return path; |
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49 } |
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50 #else |
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51 # include <libgen.h> |
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52 #endif |
| 214 | 53 |
| 54 | |
| 308 | 55 int strlen_utf8(const char *s) |
| 56 { | |
| 57 int i=0, j=0; | |
| 58 while(s[i]) | |
| 59 j += ((s[i++] & 0xc0) != 0x80); | |
| 60 return j; | |
| 61 } | |
| 62 | |
| 63 | |
| 214 | 64 int main(int argc, char* argv[]) |
| 65 { | |
| 66 int r = 0, i; | |
| 67 void* p; | |
| 68 DLLib* pLib; | |
| 233 | 69 DLSyms* pSyms; |
| 214 | 70 const char* path = NULL; |
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71 int cmp_inode = 1; |
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72 |
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73 /* hacky/lazy list of some clib paths per platform - more/others, like version-suffixed ones */ |
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74 /* can be specified in Makefile; this avoids trying to write portable directory traversal stuff */ |
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75 const char* clibs[] = { |
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76 #if defined(DEF_C_DYLIB) |
| 308 | 77 DEF_C_DYLIB, |
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78 #endif |
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79 /* fallback guessing if not provided by Makefile */ |
| 214 | 80 "/lib/libc.so", |
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81 "/lib32/libc.so", |
| 214 | 82 "/lib64/libc.so", |
| 242 | 83 "/usr/lib/libc.so", |
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84 "/usr/lib/system/libsystem_c.dylib", /* macos - note: not on fs w/ macos >= 11.0.1 */ |
| 214 | 85 "/usr/lib/libc.dylib", |
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86 "/boot/system/lib/libroot.so", /* Haiku */ |
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87 "\\ReactOS\\system32\\msvcrt.dll", /* ReactOS */ |
| 234 | 88 "C:\\ReactOS\\system32\\msvcrt.dll", |
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89 "\\Windows\\system32\\msvcrt.dll", /* Windows */ |
| 234 | 90 "C:\\Windows\\system32\\msvcrt.dll" |
| 214 | 91 }; |
| 92 | |
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93 dcTest_initPlatform(); |
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94 |
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95 /* use first matching path of hacky hardcoded list, above */ |
| 214 | 96 for(i=0; i<(sizeof(clibs)/sizeof(const char*)); ++i) { |
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97 if(access(clibs[i], F_OK) != -1) { |
| 214 | 98 path = clibs[i]; |
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99 break; |
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100 } |
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101 #if defined(DC__OS_Darwin) |
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102 /* macos >= 11.0.1 (Big Sur) dylibs might not be on disk but in a sys cache, so dlopen works but not fs checks */ |
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103 else if((pLib = dlLoadLibrary(clibs[i]))) { |
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104 cmp_inode = 0; /* not dealing with files but dylib sys cache */ |
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105 dlFreeLibrary(pLib); |
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106 path = clibs[i]; |
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107 break; |
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108 } |
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109 #endif |
| 214 | 110 } |
| 111 | |
| 112 if(path) { | |
| 113 printf("using clib to test at: %s\n", path); | |
| 114 ++r; | |
| 115 | |
| 242 | 116 /* dl*Library tests */ |
| 117 /* ---------------- */ | |
| 118 pLib = dlLoadLibrary(path); /* check if we can load a lib */ | |
| 214 | 119 if(pLib) { |
| 242 | 120 char queriedPath[200]; /* enough for our test paths */ |
| 121 int bs; | |
| 122 | |
| 214 | 123 printf("pLib handle: %p\n", pLib); |
| 124 ++r; | |
| 125 | |
| 242 | 126 p = dlFindSymbol(pLib, "printf"); /* check if we can lookup a symbol */ |
| 214 | 127 printf("printf at: %p\n", p); |
| 128 r += (p != NULL); | |
| 129 | |
| 242 | 130 bs = dlGetLibraryPath(pLib, queriedPath, 200); |
| 131 if(bs && bs <= 200) { | |
| 308 | 132 int b, bs_; |
| 242 | 133 printf("path of lib looked up via handle: %s\n", queriedPath); |
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134 |
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135 /*@@@ check if resolved path is absolute*/ |
| 242 | 136 |
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137 #if defined(DC_WINDOWS) |
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138 /* on windows, inode numbers returned by stat(2) tests below are always 0, so don't use those */ |
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139 cmp_inode = 0; |
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140 #endif |
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141 |
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142 /* path based check if same lib */ |
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143 if(cmp_inode) |
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144 { |
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145 struct stat st0, st1; /* to check if same file */ |
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146 b = (stat(path, &st0) != -1) && (stat(queriedPath, &st1) != -1); |
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147 printf("lib (inode:%d) and looked up lib (inode:%d) are same: %d\n", b?(int)st0.st_ino:-1, b?(int)st1.st_ino:-1, b && (st0.st_ino == st1.st_ino)); |
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148 r += b && (st0.st_ino == st1.st_ino); /* compare if same lib using inode */ |
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149 } |
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150 else |
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151 printf("-- skipping inode based check (doesn't apply to this platform or we are dealing with macos dylib that isn't on fs) --\n"); |
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152 |
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153 /* just load lib with queried path and compare handle */ |
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154 { |
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155 DLLib* pLib_ = dlLoadLibrary(queriedPath); |
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156 b = (pLib == pLib_); /* pLib guaranteed to not be NULL, here, so no explicit !pLib_ check */ |
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157 printf("lib (handle:%p) and looked up lib (handle:%p) are same: %d\n", pLib, pLib_, b); |
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158 r += b; |
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159 dlFreeLibrary(pLib_); /* dec ref count */ |
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160 } |
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161 |
| 242 | 162 /* check correct bufsize retval */ |
| 163 b = (bs == strlen(queriedPath) + 1); | |
| 308 | 164 printf("looked up path's needed buffer size (%d) computed correctly 1/2: %d\n", bs, b); |
| 165 r += b; | |
| 166 | |
| 167 /* check perfect fitting bufsize */ | |
| 168 queriedPath[0] = 0; | |
| 169 bs_ = dlGetLibraryPath(pLib, queriedPath, bs); | |
| 170 b = (bs == bs_ && bs_ == strlen(queriedPath) + 1); | |
| 171 printf("looked up path's needed buffer size (%d) computed correctly 2/2: %d\n", bs_, b); | |
| 172 r += b; | |
| 173 | |
| 174 /* check if dlGetLibraryPath returns size required if bufsize too small */ | |
| 175 queriedPath[0] = 0; | |
| 176 bs_ = dlGetLibraryPath(pLib, queriedPath, 1); /* tiny max buffer size */ | |
| 177 b = (bs == bs_ && strlen(queriedPath) == 0); /* nothing copied */ | |
| 178 printf("path lookup size requirement (%d) correctly returned: %d\n", bs_, b); | |
| 242 | 179 r += b; |
| 180 } | |
| 181 else | |
| 182 printf("failed to query lib path using lib's handle\n"); | |
| 183 | |
| 214 | 184 dlFreeLibrary(pLib); |
| 308 | 185 |
| 186 /* check if dlGetLibraryPath returns 0 when trying to lookup dummy */ | |
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187 bs = dlGetLibraryPath((DLLib*)&r/*dummy addr*/, queriedPath, 200); |
| 308 | 188 printf("path lookup failed as expected with bad lib handle: %d\n", bs == 0); |
| 189 r += (bs == 0); | |
| 190 | |
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191 /* test getting own path */ |
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192 { |
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193 /* get own exec's path */ |
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194 bs = dlGetLibraryPath(NULL, queriedPath, 200); |
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195 printf("dynload_plain's own path is: %s\n", queriedPath); |
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196 r += (bs != 0 && strlen(queriedPath) > 0); |
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197 |
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198 /* change working dir to where our executable is, for following test */ |
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199 chdir(dirname(queriedPath)); |
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200 } |
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201 |
| 308 | 202 /* test UTF-8 path through dummy library that's created by this test's build */ |
| 203 { | |
| 204 static const char* pathU8 = "./dynload_plain_\xc3\x9f_test"; | |
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205 int nu8c, b; |
| 308 | 206 |
| 207 pLib = dlLoadLibrary(pathU8); /* check if we can load a lib with a UTF-8 path */ | |
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208 printf("pLib (loaded w/ UTF-8 path %s with wd being exec's dir) handle: %p\n", pathU8, pLib); |
| 308 | 209 r += (p != NULL); |
| 210 | |
| 211 if(pLib) { | |
| 212 /* get UTF-8 path back */ | |
| 213 bs = dlGetLibraryPath((DLLib*)pLib, queriedPath, 200); | |
| 214 if(bs && bs <= 200) { | |
| 215 nu8c = strlen_utf8(queriedPath); /* num of UTF-8 chars is as big as ... */ | |
| 216 b = (bs > 0) && (nu8c == bs-2); /* ... buffer size minus 2 (b/c of one 2-byte UTF-8 char and "\0") */ | |
| 217 printf("UTF-8 path of lib looked up via handle: %s\n", queriedPath); | |
| 218 printf("looked up UTF-8 path's needed buffer size (%d) for %d UTF-8 char string computed correctly: %d\n", bs, nu8c, b); | |
| 219 r += b; | |
| 220 | |
| 221 dlFreeLibrary(pLib); | |
| 222 } | |
| 223 else | |
| 224 printf("failed to query UTF-8 lib path using lib's handle\n"); | |
| 225 } | |
| 226 } | |
| 214 | 227 } |
| 228 else | |
| 229 printf("unable to open library %s\n", path); | |
| 230 | |
| 231 | |
| 242 | 232 /* dlSyms* tests (intentionally after freeing lib above, as they work standalone) */ |
| 233 /* ------------- */ | |
| 234 pSyms = dlSymsInit(path); /* check if we can iterate over symbols - init */ | |
| 214 | 235 if(pSyms) { |
| 236 int n; | |
| 237 const char* name; | |
| 238 | |
| 239 printf("pSyms handle: %p\n", pSyms); | |
| 240 ++r; | |
| 241 | |
| 242 | 242 n = dlSymsCount(pSyms); /* check if there are some syms to iterate over */ |
| 214 | 243 printf("num of libc symbols: %d\n", n); |
| 244 r += (n > 0); | |
| 245 | |
| 246 for(i=0; i<n; ++i) { | |
| 247 name = dlSymsName(pSyms, i); | |
| 242 | 248 if(name && strcmp(name, "printf") == 0) { /* check if we find "printf" also in iterated symbols */ |
| 214 | 249 ++r; |
| 250 break; | |
| 251 } | |
| 252 } | |
| 253 printf("printf symbol found by iteration: %d\n", i<n); | |
| 254 | |
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255 name = (i<n) ? dlSymsName(pSyms, i) : NULL; |
| 242 | 256 r += (name && strcmp(name, "printf") == 0); /* check if we can lookup "printf" by index */ |
| 218 | 257 printf("printf symbol name by index: %s\n", name?name:""); |
| 214 | 258 |
| 242 | 259 pLib = dlLoadLibrary(path); /* check if we can resolve ptr -> name, */ |
| 260 if(pLib) { /* need to lookup by name again, first */ | |
| 214 | 261 p = dlFindSymbol(pLib, "printf"); |
| 262 name = dlSymsNameFromValue(pSyms, p); | |
| 218 | 263 printf("printf symbol name by its own address (%p): %s\n", p, name?name:""); |
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264 if(name) { |
| 308 | 265 if(strcmp(name, "printf") == 0) |
| 266 ++r; | |
| 267 else { | |
| 268 /* Symbol name returned might be an "alias". In that case, check address again (full lookup to be sure). */ | |
| 269 void* p0 = dlFindSymbol(pLib, name); | |
| 270 printf("lookup by address returned different name (%s), which is alias of printf: %d\n", name, (p==p0)); | |
| 271 r += (p == p0); | |
| 272 } | |
| 273 } | |
| 214 | 274 dlFreeLibrary(pLib); |
| 275 } | |
| 276 | |
| 277 dlSymsCleanup(pSyms); | |
| 278 } | |
| 279 else | |
| 280 printf("dlSymsInit failed\n"); | |
| 281 } | |
| 282 | |
| 242 | 283 /* Check final score of right ones to see if all worked */ |
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284 r = (r == 16 + cmp_inode); |
| 214 | 285 printf("result: dynload_plain: %d\n", r); |
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286 |
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287 dcTest_deInitPlatform(); |
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288 |
| 214 | 289 return !r; |
| 290 } | |
| 291 |