diff options
Diffstat (limited to 'REORG.TODO/posix/tst-vfork3.c')
| -rw-r--r-- | REORG.TODO/posix/tst-vfork3.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/REORG.TODO/posix/tst-vfork3.c b/REORG.TODO/posix/tst-vfork3.c new file mode 100644 index 0000000000..80898b3e41 --- /dev/null +++ b/REORG.TODO/posix/tst-vfork3.c @@ -0,0 +1,175 @@ +/* Test for vfork functions. + Copyright (C) 2007-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jakub@redhat.com>, 2007. + + 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 <mcheck.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/stat.h> +#include <sys/wait.h> + +static int do_test (void); +static void do_prepare (void); +char *tmpdirname; + +#define TEST_FUNCTION do_test () +#define PREPARE(argc, argv) do_prepare () +#include "../test-skeleton.c" + +static void +run_script (const char *script, char *const argv[]) +{ + for (size_t i = 0; i < 5; i++) + { + pid_t pid = vfork (); + if (pid < 0) + FAIL_EXIT1 ("vfork failed: %m"); + else if (pid == 0) + { + execvp (script, argv); + _exit (errno); + } + + int status; + if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid) + FAIL_EXIT1 ("waitpid failed"); + else if (status != 0) + { + if (WIFEXITED (status)) + FAIL_EXIT1 ("%s failed with status %d\n", script, + WEXITSTATUS (status)); + else + FAIL_EXIT1 ("%s killed by signal %d\n", script, + WTERMSIG (status)); + } + } +} + +static int +do_test (void) +{ + mtrace (); + + const char *path = getenv ("PATH"); + if (path == NULL) + path = "/bin"; + char pathbuf[strlen (tmpdirname) + 1 + strlen (path) + 1]; + strcpy (stpcpy (stpcpy (pathbuf, tmpdirname), ":"), path); + if (setenv ("PATH", pathbuf, 1) < 0) + { + puts ("setenv failed"); + return 1; + } + + /* Although manual states first argument should be the script name itself, + current execv{p,e} implementation allows it. */ + char *argv00[] = { NULL }; + run_script ("script0.sh", argv00); + + char *argv01[] = { (char*) "script0.sh", NULL }; + run_script ("script0.sh", argv01); + + char *argv1[] = { (char *) "script1.sh", (char *) "1", NULL }; + run_script ("script1.sh", argv1); + + char *argv2[] = { (char *) "script2.sh", (char *) "2", NULL }; + run_script ("script2.sh", argv2); + + /* Same as before but with execlp. */ + for (size_t i = 0; i < 5; i++) + { + pid_t pid = vfork (); + if (pid < 0) + { + printf ("vfork failed: %m\n"); + return 1; + } + else if (pid == 0) + { + execlp ("script2.sh", "script2.sh", "3", NULL); + _exit (errno); + } + int status; + if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid) + { + puts ("waitpid failed"); + return 1; + } + else if (status != 0) + { + printf ("script2.sh failed with status %d\n", status); + return 1; + } + } + + unsetenv ("PATH"); + char *argv4[] = { (char *) "echo", (char *) "script 4", NULL }; + run_script ("echo", argv4); + + return 0; +} + +static void +create_script (const char *script, const char *contents, size_t size) +{ + int fd = open (script, O_WRONLY | O_CREAT, 0700); + if (fd < 0 + || TEMP_FAILURE_RETRY (write (fd, contents, size)) != size + || fchmod (fd, S_IRUSR | S_IXUSR) < 0) + FAIL_EXIT1 ("could not write %s\n", script); + close (fd); +} + +static void +do_prepare (void) +{ + size_t len = strlen (test_dir) + sizeof ("/tst-vfork3.XXXXXX"); + tmpdirname = malloc (len); + if (tmpdirname == NULL) + FAIL_EXIT1 ("out of memory"); + strcpy (stpcpy (tmpdirname, test_dir), "/tst-vfork3.XXXXXX"); + + tmpdirname = mkdtemp (tmpdirname); + if (tmpdirname == NULL) + FAIL_EXIT1 ("could not create temporary directory"); + + char script0[len + sizeof "/script0.sh"]; + char script1[len + sizeof "/script1.sh"]; + char script2[len + sizeof "/script2.sh"]; + + strcpy (stpcpy (script0, tmpdirname), "/script0.sh"); + strcpy (stpcpy (script1, tmpdirname), "/script1.sh"); + strcpy (stpcpy (script2, tmpdirname), "/script2.sh"); + + add_temp_file (tmpdirname); + add_temp_file (script0); + add_temp_file (script1); + add_temp_file (script2); + + const char content0[] = "#!/bin/sh\necho empty\n"; + create_script (script0, content0, sizeof content0); + + const char content1[] = "#!/bin/sh\necho script $1\n"; + create_script (script1, content1, sizeof content1); + + const char content2[] = "echo script $1\n"; + create_script (script2, content2, sizeof content2); +} |