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Diffstat (limited to 'posix/tst-execvpe5.c')
| -rw-r--r-- | posix/tst-execvpe5.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/posix/tst-execvpe5.c b/posix/tst-execvpe5.c new file mode 100644 index 0000000..ffd764a --- /dev/null +++ b/posix/tst-execvpe5.c @@ -0,0 +1,157 @@ +/* General tests for execpve. + Copyright (C) 2016 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 (restart) + { + if (argc != 1) + { + printf ("Wrong number of arguments (%d)\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[1], argv[1], + (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; +} |