From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2206) id CA56D3858CDA; Mon, 19 Jun 2023 13:21:15 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org CA56D3858CDA DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1687180875; bh=Dw1wm0U0t9Qirn1PzbXmC2mpCAzSwdFyuu/pKYi5jYo=; h=From:To:Subject:Date:From; b=sz6baQgONNrz9+/y9AleZyRC6nOX3+nUsYnsHR3Nm+OABMqTccNEMBbI8Ev9lYfUe ueKLMPiLNpNG3cRQYE9vnsPMuuWh8k+ovgL3Mx9UPR8tqVsNpR+4HlAfMhX/8P9+sC 6V6goyItwdV2nTJjWU/ygCl+oiF4Snnlvc6qZtLg= MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="utf-8" From: Siddhesh Poyarekar To: glibc-cvs@sourceware.org Subject: [glibc] tests: replace system by xsystem X-Act-Checkin: glibc X-Git-Author: =?utf-8?b?RnLDqWTDqXJpYyBCw6lyYXQ=?= X-Git-Refname: refs/heads/master X-Git-Oldrev: 20b6b8e8a50874dd189687df8f6f8a11d4813b34 X-Git-Newrev: 8022fc7d5119a22e9e0ac72798f649385b0e167a Message-Id: <20230619132115.CA56D3858CDA@sourceware.org> Date: Mon, 19 Jun 2023 13:21:15 +0000 (GMT) List-Id: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=8022fc7d5119a22e9e0ac72798f649385b0e167a commit 8022fc7d5119a22e9e0ac72798f649385b0e167a Author: Frédéric Bérat Date: Wed Jun 14 10:52:07 2023 +0200 tests: replace system by xsystem With fortification enabled, system calls return result needs to be checked, has it gets the __wur macro enabled. Reviewed-by: Siddhesh Poyarekar Diff: --- elf/tst-stackguard1.c | 5 ++++- libio/bug-mmap-fflush.c | 7 +++++-- nptl/tst-cancel7.c | 3 ++- nptl/tst-stackguard1.c | 4 +++- nss/tst-nss-db-endpwent.c | 3 ++- support/Makefile | 1 + support/xstdlib.h | 31 +++++++++++++++++++++++++++++++ support/xsystem.c | 37 +++++++++++++++++++++++++++++++++++++ 8 files changed, 85 insertions(+), 6 deletions(-) diff --git a/elf/tst-stackguard1.c b/elf/tst-stackguard1.c index 2e65e36078..e03b242e7e 100644 --- a/elf/tst-stackguard1.c +++ b/elf/tst-stackguard1.c @@ -26,6 +26,8 @@ #include #include +#include + static const char *command; static bool child; static uintptr_t stack_chk_guard_copy; @@ -108,7 +110,8 @@ do_test (void) dup2 (fds[1], 2); close (fds[1]); - system (command); + xsystem (command); + exit (0); } diff --git a/libio/bug-mmap-fflush.c b/libio/bug-mmap-fflush.c index d8aa58985a..3f99222eef 100644 --- a/libio/bug-mmap-fflush.c +++ b/libio/bug-mmap-fflush.c @@ -4,6 +4,7 @@ #include #include +#include static char *fname; @@ -35,14 +36,16 @@ do_test (void) char buffer[1024]; snprintf (buffer, sizeof (buffer), "echo 'From foo@bar.com' > %s", fname); - system (buffer); + xsystem (buffer); + f = fopen (fname, "r"); fseek (f, 0, SEEK_END); o = ftello (f); fseek (f, 0, SEEK_SET); fflush (f); snprintf (buffer, sizeof (buffer), "echo 'From bar@baz.edu' >> %s", fname); - system (buffer); + xsystem (buffer); + fseek (f, o, SEEK_SET); if (fgets (buffer, 1024, f) == NULL) exit (1); diff --git a/nptl/tst-cancel7.c b/nptl/tst-cancel7.c index 2835613a9b..ef9e11ce58 100644 --- a/nptl/tst-cancel7.c +++ b/nptl/tst-cancel7.c @@ -43,7 +43,8 @@ tf (void *arg) { char *cmd = xasprintf ("%s --direct --sem %s --pidfile %s", command, semfilename, pidfilename); - system (cmd); + if (system (cmd)) + FAIL_EXIT1("system call unexpectedly returned"); /* This call should never return. */ return NULL; } diff --git a/nptl/tst-stackguard1.c b/nptl/tst-stackguard1.c index 4ac57157e9..7308b9d37a 100644 --- a/nptl/tst-stackguard1.c +++ b/nptl/tst-stackguard1.c @@ -28,6 +28,7 @@ #include #include +#include static const char *command; static bool child; @@ -140,7 +141,8 @@ do_test (void) dup2 (fds[1], 2); close (fds[1]); - system (command); + xsystem (command); + exit (0); } diff --git a/nss/tst-nss-db-endpwent.c b/nss/tst-nss-db-endpwent.c index 2b0fc1b064..4dba3fada6 100644 --- a/nss/tst-nss-db-endpwent.c +++ b/nss/tst-nss-db-endpwent.c @@ -23,6 +23,7 @@ #include #include +#include /* It is entirely allowed to start with a getpwent call without resetting the state of the service via a call to setpwent. @@ -55,7 +56,7 @@ do_test (void) cmd = xasprintf ("%s/makedb -o /var/db/passwd.db /var/db/passwd.in", support_bindir_prefix); - system (cmd); + xsystem (cmd); free (cmd); try_it (); diff --git a/support/Makefile b/support/Makefile index 5939e53469..c81e3c928c 100644 --- a/support/Makefile +++ b/support/Makefile @@ -212,6 +212,7 @@ libsupport-routines = \ xstrndup \ xsymlink \ xsysconf \ + xsystem \ xunlink \ xuselocale \ xwaitpid \ diff --git a/support/xstdlib.h b/support/xstdlib.h new file mode 100644 index 0000000000..db5a5b9d4f --- /dev/null +++ b/support/xstdlib.h @@ -0,0 +1,31 @@ +/* Error-checking wrappers for stdlib functions. + Copyright (C) 2023 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 + . */ + +#ifndef SUPPORT_XSTDLIB_H +#define SUPPORT_XSTDLIB_H + +#include +#include + +__BEGIN_DECLS + +void xsystem (const char *cmd); + +__END_DECLS + +#endif /* SUPPORT_XSTDLIB_H */ diff --git a/support/xsystem.c b/support/xsystem.c new file mode 100644 index 0000000000..1f558953bc --- /dev/null +++ b/support/xsystem.c @@ -0,0 +1,37 @@ +/* Error-checking replacement for "system". + Copyright (C) 2023 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 + . */ + +#include +#include + +#include + +void +xsystem (const char *cmd) +{ + int ret = system (cmd); + + if (ret == 0 && cmd == NULL) + FAIL_EXIT1 ("Unable to spawn a shell for NULL command"); + + if (ret == 127) + FAIL_EXIT1 ("Child terminated with status 127"); + + if (ret < 0) + FAIL_EXIT1 ("system (\"%s\")", cmd); +}