// hunt down and kill processes that have files open on the given mount point
void KillProcessesWithOpenFiles(const char* mountPoint, boolean sigkill, int *excluded, int num_excluded)
{
DIR* dir;
struct dirent* de;
LOG_ERROR("KillProcessesWithOpenFiles %s\n", mountPoint);
dir = opendir("/proc");
if (!dir) return;
while ((de = readdir(dir)) != 0)
{
boolean killed = false;
// does the name look like a process ID?
int pid = get_pid(de->d_name);
if (pid == -1) continue;
if (CheckFileDescriptorSymLinks(pid, mountPoint) // check for open files
|| CheckFileMaps(pid, mountPoint) // check for mmap()
|| CheckSymLink(pid, mountPoint, "cwd", "working directory") // check working directory
|| CheckSymLink(pid, mountPoint, "root", "chroot") // check for chroot()
|| CheckSymLink(pid, mountPoint, "exe", "executable path") // check executable path
)
{
int i;
boolean hit = false;
for (i = 0; i < num_excluded; i++) {
if (pid == excluded[i]) {
LOG_ERROR("I just need a little more TIME captain!\n");
hit = true;
break;
}
}
if (!hit) {
LOG_ERROR("Killing process %d\n", pid);
kill(pid, (sigkill ? SIGKILL : SIGTERM));
}
}
}
closedir(dir);
}
// apply_patch_check(file, [sha1_1, ...])
Value* ApplyPatchCheckFn(const char* name, State* state,
int argc, Expr* argv[]) {
int result = 0;
if (argc < 1) {
return ErrorAbort(state, "%s(): expected at least 1 arg, got %d",
name, argc);
}
char* filename;
if (ReadArgs(state, argv, 1, &filename) < 0) {
return NULL;
}
/*
* Some of the symbolic links to shared libraries are created at runtime
* based on hw being used as these are created at runtime sha1 would be
* different compared to the one generated by updater-script. As we anyway
* update the actual file the sym link points to, we can skip ahead sym links.
*/
if (!CheckSymLink(filename)) {
result = 0;
goto ret;
}
int patchcount = argc-1;
char** sha1s = ReadVarArgs(state, argc-1, argv+1);
result = applypatch_check(filename, patchcount, sha1s);
int i;
for (i = 0; i < patchcount; ++i) {
free(sha1s[i]);
}
free(sha1s);
ret:
return StringValue(strdup(result == 0 ? "t" : ""));
}
