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command-list.c
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command-list.c
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/*
* nvidia-installer: A tool for installing NVIDIA software packages on
* Unix and Linux systems.
*
* Copyright (C) 2003 NVIDIA Corporation
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program 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 General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses>.
*
*
* command_list.c - this source file contains functions for building
* and executing a commandlist (the list of operations to perform to
* actually do an install).
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <fts.h>
#include <unistd.h>
#include <dirent.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <errno.h>
#include <utime.h>
#include "nvidia-installer.h"
#include "command-list.h"
#include "user-interface.h"
#include "backup.h"
#include "misc.h"
#include "files.h"
#include "kernel.h"
#include "manifest.h"
#include "conflicting-kernel-modules.h"
#include "initramfs.h"
/*
* commands:
*
* INSTALL - install the file named in 'path', giving it the name in 'target';
* assign 'target' the permissions specified by 'mode'; execute the string in
* 'command' as a post-install step
*
* BACKUP - move the file named in 'path', storing it in the backup
* directory and recording the data as appropriate.
*
* RUN - execute the string in 'command'
*
* RUN_CMD_LONG - execute the string in 'command' and display an indeterminate
* progress bar while it is running.
*
* SYMLINK - create a symbolic link named 'path', pointing at the filename
* specified in 'target'.
*
* DELETE - delete the file named in 'path'.
*
* TOUCH_CMD - update the mtime of the path specified in 'path'.
*
* FUNCTION_CMD - Call the function pointed to by 'function', with a pointer
* to the Options structure passed as an argument.
*/
typedef enum {
INVALID_CMD = 0, /* Default value with nvalloc() or memset(..., '0', ...) */
INSTALL_CMD,
BACKUP_CMD,
RUN_CMD,
RUN_CMD_LONG,
SYMLINK_CMD,
DELETE_CMD,
TOUCH_CMD,
FUNCTION_CMD,
} CommandID;
typedef int (*CommandFunction)(Options *);
/*
* Command structure - data type for describing what operations to perform
* to do an install. Some of the fields may be unset, depending upon the
* value of the cmd field (see the constants above).
*/
typedef struct __command {
CommandID cmd;
char *path;
char *target;
char *command;
mode_t mode;
CommandFunction function;
} Command;
static void free_file_list(FileList* l);
static void find_conflicting_kernel_modules(Options *op, FileList *l);
static void find_existing_files(Package *p, FileList *l,
PackageEntryFileTypeList *file_type_list);
static void condense_file_list(Package *p, FileList *l);
static void add_command (CommandList *c, CommandID cmd, ...);
static void add_file_to_list(const char*, const char*, FileList*);
static void append_to_rpm_file_list(Options *op, Command *c);
static ConflictingFileInfo *build_conflicting_file_list(Options *op, Package *p);
static void get_conflicting_file_info(const char *file, ConflictingFileInfo *cfi);
/*
* find_conflicting_files() optionally takes an array of NoRecursionDirectory
* entries to indicate which directories should not be recursively searched.
*/
typedef struct {
int level; /* max search depth: set to negative for unrestricted depth */
char *name; /* name to find: NULL to end the list */
} NoRecursionDirectory;
static void find_conflicting_files(Options *op,
char *path,
ConflictingFileInfo *files,
FileList *l,
const NoRecursionDirectory *skipdirs);
/*
* Check if a path already exists in the path list, or is a subdirectory of
* a path that exists in the path list, or is a symlink to or symlink target
* of a directory that exists in the path list.
*/
static int path_already_exists(char ***paths, int count, const char *path)
{
int i;
for (i = 0; i < count; i++) {
int is_subdir = FALSE;
is_subdirectory((*paths)[i], path, &is_subdir);
if (is_subdir) {
return TRUE;
}
}
return FALSE;
}
/*
* Add a new path to the list of paths to search, provided that it exists
* and is not redundant.
* XXX we only check to see if the new directory is a subdirectory of any
* existing directory, and not the other way around.
*/
static void add_search_path(char ***paths, int *count, const char *path)
{
if (directory_exists(path) && !path_already_exists(paths, *count, path)) {
*paths = nvrealloc(*paths, sizeof(char *) * (*count + 1));
(*paths)[*count] = nvstrdup(path);
(*count)++;
}
}
/*
* Given a path, add the subdirectories "/lib", "/lib32", and "/lib64" to the
* list of paths to search.
*/
static void add_search_paths(char ***paths, int *count, const char *pathbase)
{
int i;
const char *subdirs[] = {
"/lib",
"/lib32",
"/lib64",
};
for (i = 0; i < ARRAY_LEN(subdirs); i++) {
char *path = nvstrcat(pathbase, subdirs[i], NULL);
add_search_path(paths, count, path);
nvfree(path);
}
}
/*
* Build the list of paths under which to search for conflicting files.
* Returns the number of paths added to the search list.
*/
static int get_conflicting_search_paths(const Options *op, char ***paths)
{
int ret = 0;
*paths = NULL;
add_search_paths(paths, &ret, DEFAULT_X_PREFIX);
add_search_paths(paths, &ret, XORG7_DEFAULT_X_PREFIX);
add_search_paths(paths, &ret, op->x_prefix);
add_search_paths(paths, &ret, DEFAULT_OPENGL_PREFIX);
add_search_paths(paths, &ret, op->opengl_prefix);
add_search_path(paths, &ret, op->x_module_path);
add_search_path(paths, &ret, op->x_library_path);
#if defined(NV_X86_64)
if (op->compat32_chroot != NULL) {
int i;
char *subdirs[] = {
DEFAULT_X_PREFIX,
op->x_prefix,
DEFAULT_OPENGL_PREFIX,
op->opengl_prefix,
op->compat32_prefix,
};
for (i = 0; i < ARRAY_LEN(subdirs); i++) {
char *path = nvstrcat(op->compat32_chroot, "/", subdirs[i], NULL);
add_search_paths(paths, &ret, path);
nvfree(path);
}
}
#endif
return ret;
}
/*
* build_command_list() - construct a list of all the things to do
* during the installation. This consists of:
*
* - backing and removing up conflicting files
* - installing all the installable files
* - create any needed symbolic links
* - executing any necessary commands
* - running `ldconfig` and `depmod -aq`
*
* If we are only installing the kernel module, then we trim back all
* the stuff that we don't need to do.
*/
CommandList *build_command_list(Options *op, Package *p)
{
FileList *l;
CommandList *c;
CommandID cmd;
int i;
PackageEntryFileTypeList installable_files;
PackageEntryFileTypeList tmp_installable_files;
char *tmp;
get_installable_file_type_list(op, &installable_files);
l = (FileList *) nvalloc(sizeof(FileList));
c = (CommandList *) nvalloc(sizeof(CommandList));
/* find any possibly conflicting modules and/or libraries */
if (!op->no_kernel_modules && !op->dkms_registered) {
find_conflicting_kernel_modules(op, l);
}
/* check the conflicting file list for any installed kernel modules */
if (op->kernel_modules_only) {
const char *kernel = get_kernel_name(op);
if (dkms_module_installed(op, p->version, kernel)) {
ui_error(op, "DKMS kernel modules with version %s are already "
"installed for the %s kernel.", p->version, kernel);
free_file_list(l);
free_command_list(op,c);
return NULL;
}
for (i = 0; i < l->num; i++) {
if (find_installed_file(op, l->filename[i])) {
ui_error(op, "The file '%s' already exists as part of this "
"driver installation.", l->filename[i]);
free_file_list(l);
free_command_list(op, c);
return NULL;
}
}
/* XXX: If installing with --kernel-modules-only on a system that has
* the kernel module sources already installed, but does NOT have built
* kernel modules or DKMS modules, duplicate entries for the source
* files will be added to the backup log, leading to error messages when
* uninstalling the driver later leads to redundant attempts to delete
* the files. */
}
if (!op->kernel_modules_only) {
char **paths;
int numpaths, i;
ConflictingFileInfo *conflicting_files;
/*
* stop recursing into any "nvidia-cg-toolkit"
* directory to prevent libGL.so.1 from being deleted
* (see bug 843595).
*
* Also, do not recurse into "source" or "build" directories, pretty
* much ever. This is because distros (for example, Fedora Core 21)
* have started putting links to kernel source and build trees in
* other locations, including /usr/lib/modules/`uname -r`/kernel.
* (See bug 1646361).
*/
static const NoRecursionDirectory skipdirs[] = {
{ -1, "source" },
{ -1, "build" },
{ -1, "nvidia-cg-toolkit" },
{ 0, NULL }
};
numpaths = get_conflicting_search_paths(op, &paths);
ui_status_begin(op, "Searching for conflicting files:", "Searching");
conflicting_files = build_conflicting_file_list(op, p);
for (i = 0; i < numpaths; i++) {
ui_status_update(op, (i + 1.0f) / numpaths, "Searching: %s", paths[i]);
find_conflicting_files(op, paths[i], conflicting_files, l,
skipdirs);
}
nvfree(conflicting_files);
ui_status_end(op, "done.");
}
/*
* find any existing files that clash with what we're going to
* install
*/
tmp_installable_files = installable_files;
add_symlinks_to_file_type_list(&tmp_installable_files);
if (op->dkms_registered) {
/*
* These files were imported from the DKMS tarball and DKMS will remove
* them when the kernel modules are `dkms remove`d, so nvidia-installer
* should not install them over the existing copies.
*/
remove_file_type_from_file_type_list(&tmp_installable_files,
FILE_TYPE_DKMS_CONF);
remove_file_type_from_file_type_list(&tmp_installable_files,
FILE_TYPE_KERNEL_MODULE_SRC);
}
find_existing_files(p, l, &tmp_installable_files);
/* condense the file list */
condense_file_list(p, l);
/*
* all of the files in the conflicting file list should be backed
* up or deleted
*/
cmd = op->no_backup ? DELETE_CMD : BACKUP_CMD;
for (i = 0; i < l->num; i++)
add_command(c, cmd, l->filename[i], NULL, 0);
if (!op->no_kernel_modules) {
add_command(c, FUNCTION_CMD, update_initramfs, "Rebuilding initramfs");
}
/* Add all the installable files to the list */
for (i = 0; i < p->num_entries; i++) {
/*
* Install first, then run execstack. This sets the selinux context on
* the installed file in the target filesystem, which is essentially
* guaranteed to support selinux attributes if selinux is enabled.
* However, the temporary filesystem containing the uninstalled file
* may be on a filesystem that doesn't support selinux attributes,
* such as NFS.
*
* Since execstack also changes the file on disk, we need to run it
* after the file is installed but before we compute and log its CRC in
* the backup log. To achieve that, we tell INTALL_CMD to run execstack
* as a post-install step.
*
* See bugs 530083 and 611327
*/
if (op->selinux_enabled &&
(op->utils[EXECSTACK] != NULL) &&
(p->entries[i].caps.is_shared_lib)) {
tmp = nvstrcat(op->utils[EXECSTACK], " -c ",
p->entries[i].dst, NULL);
} else {
tmp = NULL;
}
if (installable_files.types[p->entries[i].type]) {
add_command(c, INSTALL_CMD,
p->entries[i].file,
p->entries[i].dst,
tmp,
p->entries[i].mode);
}
nvfree(tmp);
/*
* For icons, update the mtime on the top-level directory of the icon
* theme. This triggers desktop environments to invalidate their icon
* cache.
*
* See https://specifications.freedesktop.org/icon-theme-spec/icon-theme-spec-latest.html#implementation_notes
*/
if (p->entries[i].type == FILE_TYPE_ICON) {
add_command(c, TOUCH_CMD, op->icon_dir);
}
/*
* delete any temporary generated files
*/
if (p->entries[i].caps.is_temporary) {
add_command(c, DELETE_CMD,
p->entries[i].file);
}
if (op->selinux_enabled &&
(p->entries[i].caps.is_shared_lib)) {
tmp = nvstrcat(op->utils[CHCON], " -t ", op->selinux_chcon_type,
" ", p->entries[i].dst, NULL);
add_command(c, RUN_CMD, tmp);
nvfree(tmp);
}
}
/* create any needed symbolic links */
for (i = 0; i < p->num_entries; i++) {
if (p->entries[i].caps.is_symlink) {
add_command(c, SYMLINK_CMD, p->entries[i].dst,
p->entries[i].target);
}
}
/*
* if "--no-abi-note" was requested, scan for any OpenGL
* libraries, and run the following command on them:
*
* objcopy --remove-section=.note.ABI-tag <filename> 2> /dev/null ; true
*/
if (op->no_abi_note) {
if (op->utils[OBJCOPY]) {
for (i = 0; i < p->num_entries; i++) {
if (p->entries[i].type == FILE_TYPE_OPENGL_LIB) {
tmp = nvstrcat(op->utils[OBJCOPY],
" --remove-section=.note.ABI-tag ",
p->entries[i].dst,
" 2> /dev/null ; true", NULL);
add_command(c, RUN_CMD, tmp);
nvfree(tmp);
}
}
} else {
ui_warn(op, "--no-abi-note option was specified but the system "
"utility `objcopy` (package 'binutils') was not found; this "
"operation will be skipped.");
}
}
/* finally, run ldconfig and depmod */
add_command(c, RUN_CMD, op->utils[LDCONFIG]);
/*
* If we are building for a non-running kernel, specify that
* kernel name on the depmod commandline line (see depmod(8)
* manpage for details). Patch provided by Nigel Spowage
*/
if (!op->no_kernel_modules && !op->skip_depmod) {
tmp = nvstrcat(op->utils[DEPMOD], " -a ", op->kernel_name, NULL);
add_command(c, RUN_CMD_LONG, tmp);
nvfree(tmp);
}
/*
* If systemd files were installed, run `systemctl daemon-reload`.
*/
if (op->use_systemd == NV_OPTIONAL_BOOL_TRUE) {
tmp = nvstrcat(op->utils[SYSTEMCTL], " daemon-reload", NULL);
add_command(c, RUN_CMD, tmp);
nvfree(tmp);
}
/* free the FileList */
free_file_list(l);
return c;
} /* build_command_list() */
/*
* free_file_list() - free the file list
*/
static void free_file_list(FileList* l)
{
int i;
if (!l) return;
for (i = 0; i < l->num; i++) {
nvfree(l->filename[i]);
}
nvfree((char *) l->filename);
nvfree((char *) l);
} /* free_file_list() */
/*
* free_command_list() - free the specified commandlist
*/
void free_command_list(Options *op, CommandList *cl)
{
int i;
Command *c;
if (!cl) return;
for (i = 0; i < cl->num; i++) {
c = &cl->cmds[i];
free(c->path);
free(c->target);
free(c->command);
free(cl->descriptions[i]);
}
free(cl->cmds);
free(cl->descriptions);
free(cl);
} /* free_command_list() */
/*
* execute_run_command() - execute a RUN_CMD from the command list.
*/
#define __RUN_CMD_FORMAT_STRING__ "Executing: %s (this may take a moment...)"
static inline int execute_run_command(Options *op, float percent, const char *cmd)
{
int indeterminate = percent < 0;
int ret;
char *data;
ui_expert(op, "Executing: %s", cmd);
if (indeterminate) {
ui_indeterminate_begin(op, __RUN_CMD_FORMAT_STRING__, cmd);
} else {
ui_status_update(op, percent, __RUN_CMD_FORMAT_STRING__, cmd);
}
ret = run_command(op, &data, TRUE, NULL, TRUE, cmd, NULL);
if (indeterminate) {
ui_indeterminate_end(op);
}
if (ret != 0) {
ui_error(op, "Failed to execute `%s`: %s", cmd, data);
ret = continue_after_error(op, "Failed to execute `%s`", cmd);
if (!ret) {
nvfree(data);
return FALSE;
}
}
if (data) free(data);
return TRUE;
} /* execute_run_command() */
/*
* execute_command_list() - execute the commands in the command list.
*
* If any failure occurs, ask the user if they would like to continue.
*/
int execute_command_list(Options *op, CommandList *c,
const char *title, const char *msg)
{
int i, ret;
float percent;
ui_status_begin(op, title, "%s", msg);
for (i = 0; i < c->num; i++) {
percent = (float) i / (float) c->num;
switch (c->cmds[i].cmd) {
case INSTALL_CMD:
ui_expert(op, "Installing: %s --> %s",
c->cmds[i].path, c->cmds[i].target);
ui_status_update(op, percent, "Installing: %s", c->cmds[i].target);
ret = install_file(op, c->cmds[i].path, c->cmds[i].target,
c->cmds[i].mode);
if (!ret) {
ret = continue_after_error(op, "Cannot install %s",
c->cmds[i].target);
if (!ret) return FALSE;
} else {
/*
* perform post-install step before logging the backup
*/
if (c->cmds[i].command &&
!execute_run_command(op, percent, c->cmds[i].command)) {
return FALSE;
}
log_install_file(op, c->cmds[i].target);
append_to_rpm_file_list(op, &c->cmds[i]);
}
break;
case RUN_CMD:
if (!execute_run_command(op, percent, c->cmds[i].command)) {
return FALSE;
}
break;
case RUN_CMD_LONG:
if (!execute_run_command(op, c->cmds[i].cmd == RUN_CMD_LONG ? -1 : percent, c->cmds[i].command)) {
return FALSE;
}
break;
case SYMLINK_CMD:
ui_expert(op, "Creating symlink: %s -> %s",
c->cmds[i].path, c->cmds[i].target);
ui_status_update(op, percent, "Creating symlink: %s",
c->cmds[i].target);
ret = install_symlink(op, c->cmds[i].target, c->cmds[i].path);
if (!ret) {
ret = continue_after_error(op, "Cannot create symlink %s (%s)",
c->cmds[i].path, strerror(errno));
if (!ret) return FALSE;
} else {
log_create_symlink(op, c->cmds[i].path, c->cmds[i].target);
}
break;
case BACKUP_CMD:
ui_expert(op, "Backing up: %s", c->cmds[i].path);
ui_status_update(op, percent, "Backing up: %s", c->cmds[i].path);
ret = do_backup(op, c->cmds[i].path);
if (!ret) {
ret = continue_after_error(op, "Cannot backup %s",
c->cmds[i].path);
if (!ret) return FALSE;
}
break;
case DELETE_CMD:
ui_expert(op, "Deleting: %s", c->cmds[i].path);
ret = unlink(c->cmds[i].path);
if (ret == -1) {
ret = continue_after_error(op, "Cannot delete %s",
c->cmds[i].path);
if (!ret) return FALSE;
}
break;
case TOUCH_CMD:
ui_expert(op, "Updating mtime: %s", c->cmds[i].path);
ret = utime(c->cmds[i].path, NULL);
if (ret == -1) {
ret = continue_after_error(op, "Cannot touch %s",
c->cmds[i].path);
if (!ret) return FALSE;
}
break;
case FUNCTION_CMD:
ui_expert(op, "%s:", c->descriptions[i]);
ret = c->cmds[i].function(op);
if (!ret) {
ret = continue_after_error(op, "%s failed", c->descriptions[i]);
if (!ret) return FALSE;
}
break;
default:
/* XXX should never get here */
return FALSE;
break;
}
}
ui_status_end(op, "done.");
return TRUE;
} /* execute_command_list() */
/*
***************************************************************************
* local static routines
***************************************************************************
*/
/*
* find_conflicting_kernel_modules() - search for conflicting kernel
* modules under the kernel module installation prefix.
*/
static void find_conflicting_kernel_modules(Options *op, FileList *l)
{
int i = 0;
ConflictingFileInfo *files;
char *paths[3];
char *tmp = get_kernel_name(op);
char **filenames;
/* Don't descend into the "build" or "source" directories; these won't
* contain modules, and may be symlinks back to an actual source tree. */
static const NoRecursionDirectory skipdirs[] = {
{ 1, "build" },
{ 1, "source" },
{ 0, NULL }
};
if (op->kernel_module_installation_path) {
paths[i++] = op->kernel_module_installation_path;
}
if (tmp) {
paths[i++] = nvstrcat("/lib/modules/", tmp, NULL);
}
paths[i] = NULL;
/* Build the list of conflicting kernel modules */
files = nvalloc((num_conflicting_kernel_modules + 1) * sizeof(files[0]));
filenames = nvalloc(num_conflicting_kernel_modules * sizeof(filenames[0]));
for (i = 0; i < num_conflicting_kernel_modules; i++) {
filenames[i] = nvstrcat(conflicting_kernel_modules[i], ".ko", NULL);
files[i].name = filenames[i];
files[i].len = strlen(filenames[i]);
}
for (i = 0; paths[i]; i++) {
/*
* Recursively search for the conflicting kernel modules
* relative to the current prefix.
*/
find_conflicting_files(op, paths[i], files, l, skipdirs);
}
/* free any paths we nvstrcat()'d above */
for (i = 1; paths[i]; i++) {
nvfree(paths[i]);
}
/* free the kernel module names */
for (i = 0; i < num_conflicting_kernel_modules; i++) {
nvfree(filenames[i]);
}
nvfree(filenames);
nvfree(files);
}
/*
* find_existing_files() - given a Package description, search for any
* of the package files which already exist, and add them to the
* FileList.
*/
static void find_existing_files(Package *p, FileList *l,
PackageEntryFileTypeList *file_type_list)
{
int i;
struct stat stat_buf;
for (i = 0; i < p->num_entries; i++) {
if (file_type_list->types[p->entries[i].type]) {
if (lstat(p->entries[i].dst, &stat_buf) == 0) {
add_file_to_list(NULL, p->entries[i].dst, l);
}
}
}
} /* find_existing_files() */
/*
* ignore_conflicting_file() - ignore (i.e., do not put it on the list
* of files to backup) the conflicting file 'filename' if requiredString
* is non-NULL and we cannot find the string in 'filename', or if the
* file only conflicts on specific architectures, and the file's
* architecture does not match.
*/
static int ignore_conflicting_file(Options *op,
const char *filename,
const ConflictingFileInfo info)
{
int fd = -1;
struct stat stat_buf;
char *file = MAP_FAILED;
int ret = FALSE;
int i, len, size = 0;
/* if no requiredString, do not check for the required string */
if (!info.requiredString) return ret;
ret = FALSE;
if ((fd = open(filename, O_RDONLY)) == -1) {
ui_error(op, "Unable to open '%s' for reading (%s)",
filename, strerror(errno));
goto cleanup;
}
if (fstat(fd, &stat_buf) == -1) {
ui_error(op, "Unable to determine size of '%s' (%s)",
filename, strerror(errno));
goto cleanup;
}
size = stat_buf.st_size;
if (!size) {
goto cleanup;
}
if ((file = mmap(0, size, PROT_READ,
MAP_FILE | MAP_SHARED, fd, 0)) == MAP_FAILED) {
ui_error(op, "Unable to map file '%s' for reading (%s)",
filename, strerror(errno));
goto cleanup;
}
/*
* if the requiredString is not found within the mapping of file,
* ignore the conflicting file; when scanning for the string,
* ensure that the string is either at the end of the file, or
* followed by '\0'.
*/
ret = TRUE;
len = strlen(info.requiredString);
for (i = 0; (i + len) <= size; i++) {
if ((strncmp(&file[i], info.requiredString, len) == 0) &&
(((i + len) == size) || (file[i+len] == '\0'))) {
ret = FALSE;
break;
}
}
/* fall through to cleanup */
cleanup:
if (file != MAP_FAILED) {
munmap(file, size);
}
if (fd != -1) {
close(fd);
}
return ret;
} /* ignore_conflicting_file() */
/*
* find_conflicting_files() - search for any conflicting
* files in all the specified paths within the hierarchy under
* the given prefix.
*/
static void find_conflicting_files(Options *op,
char *path,
ConflictingFileInfo *files,
FileList *l,
const NoRecursionDirectory *skipdirs)
{
int i;
char *paths[2];
FTS *fts;
FTSENT *ent;
paths[0] = path; /* search root */
paths[1] = NULL;
fts = fts_open(paths, FTS_LOGICAL | FTS_NOSTAT, NULL);
if (!fts) return;
while ((ent = fts_read(fts)) != NULL) {
switch (ent->fts_info) {
case FTS_F:
case FTS_SLNONE:
for (i = 0; files[i].name; i++) {
/* end compare at len e.g. so "libGL." matches "libGL.so.1" */
if (!strncmp(ent->fts_name, files[i].name, files[i].len) &&
!ignore_conflicting_file(op, ent->fts_path,
files[i])) {
add_file_to_list(NULL, ent->fts_path, l);
}
}
break;
case FTS_DP:
case FTS_D:
if (op->no_recursion) {
fts_set(fts, ent, FTS_SKIP);
} else if (skipdirs) {
const NoRecursionDirectory *dir;
for (dir = skipdirs; dir->name; dir++) {
if ((dir->level < 0 || dir->level >= ent->fts_level) &&
strcmp(ent->fts_name, dir->name) == 0) {
fts_set(fts, ent, FTS_SKIP);
}
}
}
break;
default:
/*
* we only care about regular files, symbolic links
* and directories; traversing the hierarchy logically
* to simplify handling of paths with symbolic links
* to directories, we only need to handle broken links
* and, if recursion was not disabled, directories.
*/
break;
}
}
fts_close(fts);
} /* find_conflicting_files() */
void get_conflicting_file_info(const char *file, ConflictingFileInfo *cfi)
{
char *c;
cfi->name = file;
/*
* match the names of DSOs with "libfoo.so*" by stopping any comparisons
* after ".so".
*/
c = strstr(file, ".so.");
if (c) {