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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>
115 lines
2.5 KiB
C
115 lines
2.5 KiB
C
/*
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* Copyright (C) 2014 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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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <dlfcn.h>
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#include <fcntl.h>
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#include "virmock.h"
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#define USB_SYSFS "/sys/bus/usb"
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#define FAKE_USB_SYSFS "virusbtestdata/sys_bus_usb"
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static int (*real_open)(const char *pathname, 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 void 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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}
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static char *get_fake_path(const char *real_path)
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{
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const char *p = NULL;
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char *path = NULL;
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if ((p = STRSKIP(real_path, USB_SYSFS)))
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path = g_strdup_printf("%s/%s/%s", abs_srcdir, FAKE_USB_SYSFS, p);
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else if (!p)
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path = g_strdup(real_path);
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return path;
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}
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DIR *opendir(const char *name)
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{
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g_autofree char *path = NULL;
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init_syms();
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path = get_fake_path(name);
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return real_opendir(path);
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}
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int open(const char *pathname, int flags, ...)
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{
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g_autofree char *path = NULL;
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int ret;
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va_list ap;
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mode_t mode = 0;
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init_syms();
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path = get_fake_path(pathname);
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if (!path)
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return -1;
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/* The mode argument is mandatory when O_CREAT is set in flags,
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* otherwise the argument is ignored.
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*/
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if (flags & O_CREAT) {
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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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}
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ret = real_open(path, flags, mode);
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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 *pathname, int flags)
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{
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g_autofree char *path = NULL;
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init_syms();
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path = get_fake_path(pathname);
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if (!path)
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return -1;
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return real_open(path, flags);
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}
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#endif
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