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tests/07-sim-db_bug_looping.c
68 строк
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Paul Moore
tests: correctly return an error if seccomp_init() fails
01 май 2014, 22:15
01 май 2014, 22:15
42badbc
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/** * Seccomp Library test program * * Copyright IBM Corp. 2012 * Author: Ashley Lai <adlai@us.ibm.com> */ /* * This library is free software; you can redistribute it and/or modify it * under the terms of version 2.1 of the GNU Lesser General Public License as * published by the Free Software Foundation. * * This 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 this library; if not, see <http://www.gnu.org/licenses>. */ #include <errno.h> #include <unistd.h> #include <seccomp.h> #include "util.h" int main(int argc, char *argv[]) { int rc; struct util_options opts; scmp_filter_ctx ctx = NULL; rc = util_getopt(argc, argv, &opts); if (rc < 0) goto out; ctx = seccomp_init(SCMP_ACT_KILL); if (ctx == NULL) return ENOMEM; /* The next three seccomp_rule_add_exact() calls for read must * go together in this order to catch an infinite loop. */ rc = seccomp_rule_add_exact(ctx, SCMP_ACT_ALLOW, SCMP_SYS(read), 1, SCMP_A0(SCMP_CMP_EQ, STDOUT_FILENO)); if (rc != 0) goto out; rc = seccomp_rule_add_exact(ctx, SCMP_ACT_ALLOW, SCMP_SYS(read), 1, SCMP_A1(SCMP_CMP_EQ, 0x0)); if (rc != 0) goto out; rc = seccomp_rule_add_exact(ctx, SCMP_ACT_ALLOW, SCMP_SYS(read), 1, SCMP_A0(SCMP_CMP_EQ, STDIN_FILENO)); if (rc != 0) goto out; rc = util_filter_output(&opts, ctx); if (rc) goto out; out: seccomp_release(ctx); return (rc < 0 ? -rc : rc); }