diff options
author | aszlig <aszlig@nix.build> | 2018-11-12 10:48:15 +0100 |
---|---|---|
committer | aszlig <aszlig@nix.build> | 2018-11-12 11:02:54 +0100 |
commit | 34dd1c68f877912290fcad4bb8d4d3c0035ef5e6 (patch) | |
tree | 5a5158cf92e21ec9eb7a199e8fd8898667f654c2 /pkgs/build-support/libredirect | |
parent | ba1fddb31535c5721cf2c3913e704f0b258f656b (diff) |
libredirect: Add a small test
This is just a sanity check on whether the library correctly wraps the syscalls and it's using the "true" executable for posix_spawn() and execv(). The installCheckPhase is not executed if we are cross-compiling, so this shouldn't break cross-compilation. One thing I'm not actually sure is whether ${coreutils}/bin/true is universally available on all the platforms, nor whether all the functions we use in the test are available, but we can still fix that after we've found out about that. Signed-off-by: aszlig <aszlig@nix.build>
Diffstat (limited to 'pkgs/build-support/libredirect')
-rw-r--r-- | pkgs/build-support/libredirect/default.nix | 22 | ||||
-rw-r--r-- | pkgs/build-support/libredirect/test.c | 59 |
2 files changed, 79 insertions, 2 deletions
diff --git a/pkgs/build-support/libredirect/default.nix b/pkgs/build-support/libredirect/default.nix index fec659ff5fda9..09a3da6729a9f 100644 --- a/pkgs/build-support/libredirect/default.nix +++ b/pkgs/build-support/libredirect/default.nix @@ -1,21 +1,39 @@ -{ stdenv }: +{ stdenv, coreutils }: stdenv.mkDerivation { name = "libredirect-0"; - unpackPhase = "cp ${./libredirect.c} libredirect.c"; + unpackPhase = '' + cp ${./libredirect.c} libredirect.c + cp ${./test.c} test.c + ''; shlibext = stdenv.targetPlatform.extensions.sharedLibrary; buildPhase = '' $CC -Wall -std=c99 -O3 -shared libredirect.c \ -o "libredirect$shlibext" -fPIC -ldl + + if [ -n "$doInstallCheck" ]; then + $CC -Wall -std=c99 -O3 test.c -o test + fi ''; installPhase = '' install -vD "libredirect$shlibext" "$out/lib/libredirect$shlibext" ''; + doInstallCheck = true; + + installCheckPhase = if stdenv.isDarwin then '' + NIX_REDIRECTS="/foo/bar/test=${coreutils}/bin/true" \ + DYLD_INSERT_LIBRARIES="$out/lib/libredirect$shlibext" \ + DYLD_FORCE_FLAT_NAMESPACE=1 ./test + '' else '' + NIX_REDIRECTS="/foo/bar/test=${coreutils}/bin/true" \ + LD_PRELOAD="$out/lib/libredirect$shlibext" ./test + ''; + meta = { platforms = stdenv.lib.platforms.unix; description = "An LD_PRELOAD library to intercept and rewrite the paths in glibc calls"; diff --git a/pkgs/build-support/libredirect/test.c b/pkgs/build-support/libredirect/test.c new file mode 100644 index 0000000000000..b57664db3c19f --- /dev/null +++ b/pkgs/build-support/libredirect/test.c @@ -0,0 +1,59 @@ +#include <assert.h> +#include <fcntl.h> +#include <spawn.h> +#include <stdio.h> +#include <unistd.h> + +#include <sys/stat.h> +#include <sys/types.h> +#include <sys/wait.h> + +#define TESTPATH "/foo/bar/test" + +extern char **environ; + +void test_spawn(void) { + pid_t pid; + int ret; + posix_spawn_file_actions_t file_actions; + char *argv[] = {"true", NULL}; + + assert(posix_spawn_file_actions_init(&file_actions) == 0); + + ret = posix_spawn(&pid, TESTPATH, &file_actions, NULL, argv, environ); + + assert(ret == 0); + assert(waitpid(pid, NULL, 0) != -1); +} + +void test_execv(void) { + char *argv[] = {"true", NULL}; + assert(execv(TESTPATH, argv) == 0); +} + +int main(void) +{ + FILE *testfp; + int testfd; + struct stat testsb; + + testfp = fopen(TESTPATH, "r"); + assert(testfp != NULL); + fclose(testfp); + + testfd = open(TESTPATH, O_RDONLY); + assert(testfd != -1); + close(testfd); + + assert(access(TESTPATH, X_OK) == 0); + + assert(stat(TESTPATH, &testsb) != -1); + + test_spawn(); + test_execv(); + + /* If all goes well, this is never reached because test_execv() replaces + * the current process. + */ + return 0; +} |