Mercurial > pub > dyncall > dyncall
annotate test/dynload_plain/dynload_plain.c @ 318:3124f4c4f293
- dynload_plain test code build fix for windows
| author | Tassilo Philipp |
|---|---|
| date | Wed, 13 Nov 2019 01:21:02 +0100 |
| parents | b2e4e23d9953 |
| children | dd5d03483314 |
| 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 | |
| 281 | 9 Copyright (c) 2017-2018 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" | |
| 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 | |
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37 |
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38 #if defined(DC_WINDOWS) |
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39 char* dirname(char* path) |
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40 { |
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41 static const char dot[] = "."; |
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42 char* p = strrchr(path, '\\'); |
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43 if(p) |
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44 *p = '\0'; |
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45 else |
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46 path = (char*)dot; |
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47 return path; |
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48 } |
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49 #else |
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50 # include <libgen.h> |
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51 #endif |
| 214 | 52 |
| 53 | |
| 308 | 54 int strlen_utf8(const char *s) |
| 55 { | |
| 56 int i=0, j=0; | |
| 57 while(s[i]) | |
| 58 j += ((s[i++] & 0xc0) != 0x80); | |
| 59 return j; | |
| 60 } | |
| 61 | |
| 62 | |
| 214 | 63 int main(int argc, char* argv[]) |
| 64 { | |
| 65 int r = 0, i; | |
| 66 void* p; | |
| 67 DLLib* pLib; | |
| 233 | 68 DLSyms* pSyms; |
| 214 | 69 const char* path = NULL; |
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70 /* hacky/lazy list of some clib paths per platform - more/others, like version-suffixed ones */ |
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71 /* can be specified in Makefile; this avoids trying to write portable directory traversal stuff */ |
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72 const char* clibs[] = { |
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73 #if defined(DEF_C_DYLIB) |
| 308 | 74 DEF_C_DYLIB, |
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75 #endif |
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76 /* fallback guessing if not provided by Makefile */ |
| 214 | 77 "/lib/libc.so", |
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78 "/lib32/libc.so", |
| 214 | 79 "/lib64/libc.so", |
| 242 | 80 "/usr/lib/libc.so", |
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81 "/usr/lib/system/libsystem_c.dylib", /* macos */ |
| 214 | 82 "/usr/lib/libc.dylib", |
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83 "/boot/system/lib/libroot.so", /* Haiku */ |
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84 "\\ReactOS\\system32\\msvcrt.dll", /* ReactOS */ |
| 234 | 85 "C:\\ReactOS\\system32\\msvcrt.dll", |
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86 "\\Windows\\system32\\msvcrt.dll", /* Windows */ |
| 234 | 87 "C:\\Windows\\system32\\msvcrt.dll" |
| 214 | 88 }; |
| 89 | |
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90 /* use first matching path of hacky hardcoded list, above */ |
| 214 | 91 for(i=0; i<(sizeof(clibs)/sizeof(const char*)); ++i) { |
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92 if(access(clibs[i], F_OK) != -1) { |
| 214 | 93 path = clibs[i]; |
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94 break; |
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95 } |
| 214 | 96 } |
| 97 | |
| 98 if(path) { | |
| 99 printf("using clib to test at: %s\n", path); | |
| 100 ++r; | |
| 101 | |
| 242 | 102 /* dl*Library tests */ |
| 103 /* ---------------- */ | |
| 104 pLib = dlLoadLibrary(path); /* check if we can load a lib */ | |
| 214 | 105 if(pLib) { |
| 242 | 106 char queriedPath[200]; /* enough for our test paths */ |
| 107 int bs; | |
| 108 | |
| 214 | 109 printf("pLib handle: %p\n", pLib); |
| 110 ++r; | |
| 111 | |
| 242 | 112 p = dlFindSymbol(pLib, "printf"); /* check if we can lookup a symbol */ |
| 214 | 113 printf("printf at: %p\n", p); |
| 114 r += (p != NULL); | |
| 115 | |
| 242 | 116 bs = dlGetLibraryPath(pLib, queriedPath, 200); |
| 117 if(bs && bs <= 200) { | |
| 308 | 118 struct stat st0, st1; /* to check if same file */ |
| 119 int b, bs_; | |
| 242 | 120 printf("path of lib looked up via handle: %s\n", queriedPath); |
| 121 b = (stat(path, &st0) != -1) && (stat(queriedPath, &st1) != -1); | |
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122 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 | 123 r += b && (st0.st_ino == st1.st_ino); /* compare if same lib using inode */ |
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124 /*@@@ check if resolved path is absolute*/ |
| 242 | 125 |
| 126 /* check correct bufsize retval */ | |
| 127 b = (bs == strlen(queriedPath) + 1); | |
| 308 | 128 printf("looked up path's needed buffer size (%d) computed correctly 1/2: %d\n", bs, b); |
| 129 r += b; | |
| 130 | |
| 131 /* check perfect fitting bufsize */ | |
| 132 queriedPath[0] = 0; | |
| 133 bs_ = dlGetLibraryPath(pLib, queriedPath, bs); | |
| 134 b = (bs == bs_ && bs_ == strlen(queriedPath) + 1); | |
| 135 printf("looked up path's needed buffer size (%d) computed correctly 2/2: %d\n", bs_, b); | |
| 136 r += b; | |
| 137 | |
| 138 /* check if dlGetLibraryPath returns size required if bufsize too small */ | |
| 139 queriedPath[0] = 0; | |
| 140 bs_ = dlGetLibraryPath(pLib, queriedPath, 1); /* tiny max buffer size */ | |
| 141 b = (bs == bs_ && strlen(queriedPath) == 0); /* nothing copied */ | |
| 142 printf("path lookup size requirement (%d) correctly returned: %d\n", bs_, b); | |
| 242 | 143 r += b; |
| 144 } | |
| 145 else | |
| 146 printf("failed to query lib path using lib's handle\n"); | |
| 147 | |
| 214 | 148 dlFreeLibrary(pLib); |
| 308 | 149 |
| 150 /* check if dlGetLibraryPath returns 0 when trying to lookup dummy */ | |
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151 bs = dlGetLibraryPath((DLLib*)&r/*dummy addr*/, queriedPath, 200); |
| 308 | 152 printf("path lookup failed as expected with bad lib handle: %d\n", bs == 0); |
| 153 r += (bs == 0); | |
| 154 | |
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155 /* test getting own path */ |
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156 { |
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157 /* get own exec's path */ |
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158 bs = dlGetLibraryPath(NULL, queriedPath, 200); |
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159 printf("dynload_plain's own path is: %s\n", queriedPath); |
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160 r += (bs != 0 && strlen(queriedPath) > 0); |
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161 |
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162 /* change working dir to where our executable is, for following test */ |
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163 chdir(dirname(queriedPath)); |
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164 } |
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165 |
| 308 | 166 /* test UTF-8 path through dummy library that's created by this test's build */ |
| 167 { | |
| 168 static const char* pathU8 = "./dynload_plain_\xc3\x9f_test"; | |
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169 int nu8c, b; |
| 308 | 170 |
| 171 pLib = dlLoadLibrary(pathU8); /* check if we can load a lib with a UTF-8 path */ | |
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172 printf("pLib (loaded w/ UTF-8 path %s with wd being exec's dir) handle: %p\n", pathU8, pLib); |
| 308 | 173 r += (p != NULL); |
| 174 | |
| 175 if(pLib) { | |
| 176 /* get UTF-8 path back */ | |
| 177 bs = dlGetLibraryPath((DLLib*)pLib, queriedPath, 200); | |
| 178 if(bs && bs <= 200) { | |
| 179 nu8c = strlen_utf8(queriedPath); /* num of UTF-8 chars is as big as ... */ | |
| 180 b = (bs > 0) && (nu8c == bs-2); /* ... buffer size minus 2 (b/c of one 2-byte UTF-8 char and "\0") */ | |
| 181 printf("UTF-8 path of lib looked up via handle: %s\n", queriedPath); | |
| 182 printf("looked up UTF-8 path's needed buffer size (%d) for %d UTF-8 char string computed correctly: %d\n", bs, nu8c, b); | |
| 183 r += b; | |
| 184 | |
| 185 dlFreeLibrary(pLib); | |
| 186 } | |
| 187 else | |
| 188 printf("failed to query UTF-8 lib path using lib's handle\n"); | |
| 189 } | |
| 190 } | |
| 214 | 191 } |
| 192 else | |
| 193 printf("unable to open library %s\n", path); | |
| 194 | |
| 195 | |
| 242 | 196 /* dlSyms* tests (intentionally after freeing lib above, as they work standalone) */ |
| 197 /* ------------- */ | |
| 198 pSyms = dlSymsInit(path); /* check if we can iterate over symbols - init */ | |
| 214 | 199 if(pSyms) { |
| 200 int n; | |
| 201 const char* name; | |
| 202 | |
| 203 printf("pSyms handle: %p\n", pSyms); | |
| 204 ++r; | |
| 205 | |
| 242 | 206 n = dlSymsCount(pSyms); /* check if there are some syms to iterate over */ |
| 214 | 207 printf("num of libc symbols: %d\n", n); |
| 208 r += (n > 0); | |
| 209 | |
| 210 for(i=0; i<n; ++i) { | |
| 211 name = dlSymsName(pSyms, i); | |
| 242 | 212 if(name && strcmp(name, "printf") == 0) { /* check if we find "printf" also in iterated symbols */ |
| 214 | 213 ++r; |
| 214 break; | |
| 215 } | |
| 216 } | |
| 217 printf("printf symbol found by iteration: %d\n", i<n); | |
| 218 | |
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219 name = (i<n) ? dlSymsName(pSyms, i) : NULL; |
| 242 | 220 r += (name && strcmp(name, "printf") == 0); /* check if we can lookup "printf" by index */ |
| 218 | 221 printf("printf symbol name by index: %s\n", name?name:""); |
| 214 | 222 |
| 242 | 223 pLib = dlLoadLibrary(path); /* check if we can resolve ptr -> name, */ |
| 224 if(pLib) { /* need to lookup by name again, first */ | |
| 214 | 225 p = dlFindSymbol(pLib, "printf"); |
| 226 name = dlSymsNameFromValue(pSyms, p); | |
| 218 | 227 printf("printf symbol name by its own address (%p): %s\n", p, name?name:""); |
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228 if(name) { |
| 308 | 229 if(strcmp(name, "printf") == 0) |
| 230 ++r; | |
| 231 else { | |
| 232 /* Symbol name returned might be an "alias". In that case, check address again (full lookup to be sure). */ | |
| 233 void* p0 = dlFindSymbol(pLib, name); | |
| 234 printf("lookup by address returned different name (%s), which is alias of printf: %d\n", name, (p==p0)); | |
| 235 r += (p == p0); | |
| 236 } | |
| 237 } | |
| 214 | 238 dlFreeLibrary(pLib); |
| 239 } | |
| 240 | |
| 241 dlSymsCleanup(pSyms); | |
| 242 } | |
| 243 else | |
| 244 printf("dlSymsInit failed\n"); | |
| 245 } | |
| 246 | |
| 242 | 247 /* Check final score of right ones to see if all worked */ |
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248 r = (r == 16); |
| 214 | 249 printf("result: dynload_plain: %d\n", r); |
| 250 return !r; | |
| 251 } | |
| 252 |