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comparison test/dynload_plain/dynload_plain.c @ 314:b2e4e23d9953

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- stop using dlinfo() on glibc platforms but use dl_iterate_phdr() instead, as former's implementation is nothing more than a fancy cast and thus dangerously assuming that every provided handle is valid - dynload_plain test * now testing getting exec's path * workdir independent
author Tassilo Philipp
date Wed, 06 Nov 2019 12:32:53 +0100
parents 73b5b9e224e2
children 3124f4c4f293
comparison
equal deleted inserted replaced
313:73b5b9e224e2 314:b2e4e23d9953
32 # include <io.h> 32 # include <io.h>
33 # define F_OK 0 33 # define F_OK 0
34 #else 34 #else
35 # include <unistd.h> 35 # include <unistd.h>
36 #endif 36 #endif
37 #include <libgen.h>
37 38
38 39
39 int strlen_utf8(const char *s) 40 int strlen_utf8(const char *s)
40 { 41 {
41 int i=0, j=0; 42 int i=0, j=0;
56 /* can be specified in Makefile; this avoids trying to write portable directory traversal stuff */ 57 /* can be specified in Makefile; this avoids trying to write portable directory traversal stuff */
57 const char* clibs[] = { 58 const char* clibs[] = {
58 #if defined(DEF_C_DYLIB) 59 #if defined(DEF_C_DYLIB)
59 DEF_C_DYLIB, 60 DEF_C_DYLIB,
60 #endif 61 #endif
61 /* fallback guessing if not provided by Makefile */ 62 /* fallback guessing if not provided by Makefile */
62 "/lib/libc.so", 63 "/lib/libc.so",
63 "/lib32/libc.so", 64 "/lib32/libc.so",
64 "/lib64/libc.so", 65 "/lib64/libc.so",
65 "/usr/lib/libc.so", 66 "/usr/lib/libc.so",
66 "/usr/lib/system/libsystem_c.dylib", /* macos */ 67 "/usr/lib/system/libsystem_c.dylib", /* macos */
135 /* check if dlGetLibraryPath returns 0 when trying to lookup dummy */ 136 /* check if dlGetLibraryPath returns 0 when trying to lookup dummy */
136 bs = dlGetLibraryPath((DLLib*)&r/*dummy addr*/, queriedPath, 200); 137 bs = dlGetLibraryPath((DLLib*)&r/*dummy addr*/, queriedPath, 200);
137 printf("path lookup failed as expected with bad lib handle: %d\n", bs == 0); 138 printf("path lookup failed as expected with bad lib handle: %d\n", bs == 0);
138 r += (bs == 0); 139 r += (bs == 0);
139 140
141 /* test getting own path */
142 {
143 /* get own exec's path */
144 bs = dlGetLibraryPath(NULL, queriedPath, 200);
145 printf("dynload_plain's own path is: %s\n", queriedPath);
146 r += (bs != 0 && strlen(queriedPath) > 0);
147
148 /* change working dir to where our executable is, for following test */
149 chdir(dirname(queriedPath));
150 }
151
140 /* test UTF-8 path through dummy library that's created by this test's build */ 152 /* test UTF-8 path through dummy library that's created by this test's build */
141 { 153 {
142 static const char* pathU8 = "./dynload_plain_\xc3\x9f_test"; 154 static const char* pathU8 = "./dynload_plain_\xc3\x9f_test";
143 int nu8c, b; 155 int nu8c, b;
144 156
145 //cp(pathU8, "/lib/libz.so.6");
146 pLib = dlLoadLibrary(pathU8); /* check if we can load a lib with a UTF-8 path */ 157 pLib = dlLoadLibrary(pathU8); /* check if we can load a lib with a UTF-8 path */
147 printf("pLib (loaded w/ UTF-8 path %s) handle: %p\n", pathU8, pLib); 158 printf("pLib (loaded w/ UTF-8 path %s with wd being exec's dir) handle: %p\n", pathU8, pLib);
148 r += (p != NULL); 159 r += (p != NULL);
149 160
150 if(pLib) { 161 if(pLib) {
151 /* get UTF-8 path back */ 162 /* get UTF-8 path back */
152 bs = dlGetLibraryPath((DLLib*)pLib, queriedPath, 200); 163 bs = dlGetLibraryPath((DLLib*)pLib, queriedPath, 200);
218 else 229 else
219 printf("dlSymsInit failed\n"); 230 printf("dlSymsInit failed\n");
220 } 231 }
221 232
222 /* Check final score of right ones to see if all worked */ 233 /* Check final score of right ones to see if all worked */
223 r = (r == 15); 234 r = (r == 16);
224 printf("result: dynload_plain: %d\n", r); 235 printf("result: dynload_plain: %d\n", r);
225 return !r; 236 return !r;
226 } 237 }
227 238