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b7e6513a01
As of commit [1] glibc may overwrite a call to open() with call to __open_2() (if only two arguments are provided and the code is compiled with clang). But since we are not mocking the latter our test suite is broken as tests try to access paths outside of our repo. 1: https://sourceware.org/git/?p=glibc.git;a=commit;h=86889e22db329abac618c6a41f86c84657a15324 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
157 lines
3.3 KiB
C
157 lines
3.3 KiB
C
/*
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* Copyright (C) 2016 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#ifdef WITH_NSS
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# include "virmock.h"
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# include <sys/types.h>
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# include <dirent.h>
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# include <sys/stat.h>
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# include <fcntl.h>
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# include <unistd.h>
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# include "configmake.h"
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static int (*real_open)(const char *path, int flags, ...);
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# if WITH___OPEN_2
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static int (*real___open_2)(const char *path, int flags);
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# endif
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static DIR * (*real_opendir)(const char *name);
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static int (*real_access)(const char *path, int mode);
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# define LEASEDIR LOCALSTATEDIR "/lib/libvirt/dnsmasq/"
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/*
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* Functions to load the symbols and init the environment
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*/
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static void
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init_syms(void)
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{
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if (real_open)
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return;
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VIR_MOCK_REAL_INIT(open);
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# if WITH___OPEN_2
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VIR_MOCK_REAL_INIT(__open_2);
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# endif
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VIR_MOCK_REAL_INIT(opendir);
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VIR_MOCK_REAL_INIT(access);
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}
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static int
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getrealpath(char **newpath,
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const char *path)
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{
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if (STRPREFIX(path, LEASEDIR)) {
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*newpath = g_strdup_printf("%s/nssdata/%s",
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abs_srcdir,
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path + strlen(LEASEDIR));
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} else {
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*newpath = g_strdup(path);
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}
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return 0;
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}
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int
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open(const char *path, int flags, ...)
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{
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int ret;
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char *newpath = NULL;
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init_syms();
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if (STRPREFIX(path, LEASEDIR) &&
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getrealpath(&newpath, path) < 0)
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return -1;
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if (flags & O_CREAT) {
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va_list ap;
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mode_t mode;
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va_start(ap, flags);
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mode = (mode_t) va_arg(ap, int);
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va_end(ap);
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ret = real_open(newpath ? newpath : path, flags, mode);
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} else {
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ret = real_open(newpath ? newpath : path, flags);
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}
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free(newpath);
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return ret;
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}
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# if WITH___OPEN_2
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int
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__open_2(const char *path, int flags)
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{
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int ret;
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char *newpath = NULL;
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init_syms();
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if (STRPREFIX(path, LEASEDIR) &&
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getrealpath(&newpath, path) < 0)
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return -1;
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ret = real___open_2(newpath ? newpath : path, flags);
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free(newpath);
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return ret;
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}
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# endif
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DIR *
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opendir(const char *path)
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{
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DIR *ret;
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char *newpath = NULL;
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init_syms();
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if (STRPREFIX(path, LEASEDIR) &&
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getrealpath(&newpath, path) < 0)
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return NULL;
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ret = real_opendir(newpath ? newpath : path);
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free(newpath);
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return ret;
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}
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int
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access(const char *path, int mode)
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{
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int ret;
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char *newpath = NULL;
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init_syms();
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if (STRPREFIX(path, LEASEDIR) &&
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getrealpath(&newpath, path) < 0)
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return -1;
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ret = real_access(newpath ? newpath : path, mode);
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free(newpath);
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return ret;
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}
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#else
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/* Nothing to override if NSS plugin is not enabled */
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#endif
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