diff options
Diffstat (limited to 'gnu/packages/aux-files/run-in-namespace.c')
-rw-r--r-- | gnu/packages/aux-files/run-in-namespace.c | 48 |
1 files changed, 44 insertions, 4 deletions
diff --git a/gnu/packages/aux-files/run-in-namespace.c b/gnu/packages/aux-files/run-in-namespace.c index 5a6b932b87..7f7e5c6885 100644 --- a/gnu/packages/aux-files/run-in-namespace.c +++ b/gnu/packages/aux-files/run-in-namespace.c @@ -371,24 +371,64 @@ exec_with_proot (const char *store, int argc, char *argv[]) #if HAVE_EXEC_WITH_LOADER +/* Traverse PATH, a NULL-terminated string array, and return a colon-separated + search path where each item of PATH has been relocated to STORE. The + result is malloc'd. */ +static char * +relocated_search_path (const char *path[], const char *store) +{ + char *new_path; + size_t size = 0; + + for (size_t i = 0; path[i] != NULL; i++) + size += strlen (store) + strlen (path[i]) + 1; /* upper bound */ + + new_path = xmalloc (size + 1); + new_path[0] = '\0'; + + for (size_t i = 0; path[i] != NULL; i++) + { + if (strncmp (path[i], original_store, + sizeof original_store - 1) == 0) + { + strcat (new_path, store); + strcat (new_path, path[i] + sizeof original_store - 1); + } + else + strcat (new_path, path[i]); /* possibly $ORIGIN */ + + strcat (new_path, ":"); + } + + new_path[strlen (new_path) - 1] = '\0'; /* Remove trailing colon. */ + + return new_path; +} + /* Execute the wrapped program by invoking the loader (ld.so) directly, passing it the audit module and preloading libfakechroot.so. */ static void exec_with_loader (const char *store, int argc, char *argv[]) { + static const char *audit_library_path[] = LOADER_AUDIT_RUNPATH; char *loader = concat (store, PROGRAM_INTERPRETER + sizeof original_store); - size_t loader_specific_argc = 6; + size_t loader_specific_argc = 8; size_t loader_argc = argc + loader_specific_argc; char *loader_argv[loader_argc + 1]; loader_argv[0] = argv[0]; loader_argv[1] = "--audit"; loader_argv[2] = concat (store, LOADER_AUDIT_MODULE + sizeof original_store); - loader_argv[3] = "--preload"; - loader_argv[4] = concat (store, + + /* The audit module depends on libc.so and libgcc_s.so. */ + loader_argv[3] = "--library-path"; + loader_argv[4] = relocated_search_path (audit_library_path, store); + + loader_argv[5] = "--preload"; + loader_argv[6] = concat (store, FAKECHROOT_LIBRARY + sizeof original_store); - loader_argv[5] = concat (store, + loader_argv[7] = concat (store, "@WRAPPED_PROGRAM@" + sizeof original_store); for (size_t i = 0; i < argc; i++) |