| /* General tests for execpve. |
| Copyright (C) 2016-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <wait.h> |
| |
| |
| /* Nonzero if the program gets called via `exec'. */ |
| static int restart; |
| |
| |
| #define CMDLINE_OPTIONS \ |
| { "restart", no_argument, &restart, 1 }, |
| |
| /* Prototype for our test function. */ |
| extern void do_prepare (int argc, char *argv[]); |
| extern int do_test (int argc, char *argv[]); |
| |
| #include "../test-skeleton.c" |
| |
| #define EXECVPE_KEY "EXECVPE_ENV" |
| #define EXECVPE_VALUE "execvpe_test" |
| |
| |
| static int |
| handle_restart (void) |
| { |
| /* First check if only one variable is passed on execvpe. */ |
| int env_count = 0; |
| for (char **e = environ; *e != NULL; ++e) |
| if (++env_count == INT_MAX) |
| { |
| printf ("Environment variable number overflow"); |
| exit (EXIT_FAILURE); |
| } |
| if (env_count != 1) |
| { |
| printf ("Wrong number of environment variables"); |
| exit (EXIT_FAILURE); |
| } |
| |
| /* Check if the combinarion os "EXECVPE_ENV=execvpe_test" */ |
| const char *env = getenv (EXECVPE_KEY); |
| if (env == NULL) |
| { |
| printf ("Test environment variable not found"); |
| exit (EXIT_FAILURE); |
| } |
| |
| if (strncmp (env, EXECVPE_VALUE, sizeof (EXECVPE_VALUE))) |
| { |
| printf ("Test environment variable with wrong value"); |
| exit (EXIT_FAILURE); |
| } |
| |
| return 0; |
| } |
| |
| |
| int |
| do_test (int argc, char *argv[]) |
| { |
| pid_t pid; |
| int status; |
| |
| /* We must have |
| - one or four parameters left if called initially |
| + path for ld.so optional |
| + "--library-path" optional |
| + the library path optional |
| + the application name |
| |
| if --enable-hardcoded-path-in-tests is used, just |
| + the application name |
| */ |
| |
| if (restart) |
| { |
| if (argc != 1) |
| { |
| printf ("Wrong number of arguments (%d) in restart\n", argc); |
| exit (EXIT_FAILURE); |
| } |
| |
| return handle_restart (); |
| } |
| |
| if (argc != 2 && argc != 5) |
| { |
| printf ("Wrong number of arguments (%d)\n", argc); |
| exit (EXIT_FAILURE); |
| } |
| |
| /* We want to test the `execvpe' function. To do this we restart the |
| program with an additional parameter. */ |
| pid = fork (); |
| if (pid == 0) |
| { |
| /* This is the child. Construct the command line. */ |
| |
| /* We cast here to char* because the test itself does not modify neither |
| the argument nor the environment list. */ |
| char *envs[] = { (char*)(EXECVPE_KEY "=" EXECVPE_VALUE), NULL }; |
| if (argc == 5) |
| { |
| char *args[] = { argv[1], argv[2], argv[3], argv[4], |
| (char *) "--direct", (char *) "--restart", NULL }; |
| execvpe (args[0], args, envs); |
| } |
| else |
| { |
| char *args[] = { argv[0], |
| (char *) "--direct", (char *) "--restart", NULL }; |
| execvpe (args[0], args, envs); |
| } |
| |
| puts ("Cannot exec"); |
| exit (EXIT_FAILURE); |
| } |
| else if (pid == (pid_t) -1) |
| { |
| puts ("Cannot fork"); |
| return 1; |
| } |
| |
| /* Wait for the child. */ |
| if (waitpid (pid, &status, 0) != pid) |
| { |
| puts ("Wrong child"); |
| return 1; |
| } |
| |
| if (WTERMSIG (status) != 0) |
| { |
| puts ("Child terminated incorrectly"); |
| return 1; |
| } |
| status = WEXITSTATUS (status); |
| |
| return status; |
| } |