int main(int argc, char *argv[])
{
FILE *f;
struct cli_bc *bc;
struct cli_bc_ctx *ctx;
int rc, dbgargc, bc_stats=0;
struct optstruct *opts;
const struct optstruct *opt;
unsigned funcid=0, i;
struct cli_all_bc bcs;
int fd = -1;
unsigned tracelevel;
if(check_flevel())
exit(1);
opts = optparse(NULL, argc, argv, 1, OPT_CLAMBC, 0, NULL);
if (!opts) {
fprintf(stderr, "ERROR: Can't parse command line options\n");
exit(1);
}
if(optget(opts, "version")->enabled) {
printf("Clam AntiVirus Bytecode Testing Tool %s\n", get_version());
cl_init(CL_INIT_DEFAULT);
cli_bytecode_printversion();
optfree(opts);
exit(0);
}
if(optget(opts, "help")->enabled || !opts->filename) {
optfree(opts);
help();
exit(0);
}
f = fopen(opts->filename[0], "r");
if (!f) {
fprintf(stderr, "Unable to load %s\n", argv[1]);
optfree(opts);
exit(2);
}
bc = malloc(sizeof(*bc));
if (!bc) {
fprintf(stderr, "Out of memory\n");
optfree(opts);
exit(3);
}
if (optget(opts,"debug")->enabled) {
cl_debug();
debug_flag=1;
}
rc = cl_init(CL_INIT_DEFAULT);
if (rc != CL_SUCCESS) {
fprintf(stderr,"Unable to init libclamav: %s\n", cl_strerror(rc));
optfree(opts);
exit(4);
}
dbgargc=1;
while (opts->filename[dbgargc]) dbgargc++;
if (dbgargc > 1)
cli_bytecode_debug(dbgargc, opts->filename);
if (optget(opts, "force-interpreter")->enabled) {
bcs.engine = NULL;
} else {
rc = cli_bytecode_init(&bcs);
if (rc != CL_SUCCESS) {
fprintf(stderr,"Unable to init bytecode engine: %s\n", cl_strerror(rc));
optfree(opts);
exit(4);
}
}
bcs.all_bcs = bc;
bcs.count = 1;
if((opt = optget(opts, "statistics"))->enabled) {
while(opt) {
if (!strcasecmp(opt->strarg, "bytecode"))
bc_stats=1;
opt = opt->nextarg;
}
}
rc = cli_bytecode_load(bc, f, NULL, optget(opts, "trust-bytecode")->enabled, bc_stats);
if (rc != CL_SUCCESS) {
fprintf(stderr,"Unable to load bytecode: %s\n", cl_strerror(rc));
optfree(opts);
exit(4);
}
fclose(f);
if (bc->state == bc_skip) {
fprintf(stderr,"bytecode load skipped\n");
exit(0);
}
if (debug_flag)
printf("[clambc] Bytecode loaded\n");
if (optget(opts, "info")->enabled) {
cli_bytecode_describe(bc);
} else if (optget(opts, "printsrc")->enabled) {
print_src(opts->filename[0]);
} else if (optget(opts, "printbcir")->enabled) {
cli_bytetype_describe(bc);
cli_bytevalue_describe(bc, 0);
cli_bytefunc_describe(bc, 0);
} else {
cli_ctx cctx;
struct cl_engine *engine = cl_engine_new();
fmap_t *map = NULL;
memset(&cctx, 0, sizeof(cctx));
if (!engine) {
fprintf(stderr,"Unable to create engine\n");
optfree(opts);
exit(3);
}
rc = cl_engine_compile(engine);
if (rc) {
fprintf(stderr,"Unable to compile engine: %s\n", cl_strerror(rc));
optfree(opts);
exit(4);
}
rc = cli_bytecode_prepare2(engine, &bcs, BYTECODE_ENGINE_MASK);
if (rc != CL_SUCCESS) {
fprintf(stderr,"Unable to prepare bytecode: %s\n", cl_strerror(rc));
optfree(opts);
exit(4);
}
if (debug_flag)
printf("[clambc] Bytecode prepared\n");
ctx = cli_bytecode_context_alloc();
if (!ctx) {
fprintf(stderr,"Out of memory\n");
exit(3);
}
ctx->ctx = &cctx;
cctx.engine = engine;
cctx.fmap = cli_calloc(sizeof(fmap_t*), engine->maxreclevel+2);
if (!cctx.fmap) {
fprintf(stderr,"Out of memory\n");
exit(3);
}
memset(&dbg_state, 0, sizeof(dbg_state));
dbg_state.file = "<libclamav>";
dbg_state.line = 0;
dbg_state.col = 0;
dbg_state.showline = !optget(opts, "no-trace-showsource")->enabled;
tracelevel = optget(opts, "trace")->numarg;
cli_bytecode_context_set_trace(ctx, tracelevel,
tracehook,
tracehook_op,
tracehook_val,
tracehook_ptr);
if (opts->filename[1]) {
funcid = atoi(opts->filename[1]);
}
cli_bytecode_context_setfuncid(ctx, bc, funcid);
if (debug_flag)
printf("[clambc] Running bytecode function :%u\n", funcid);
if (opts->filename[1]) {
i=2;
while (opts->filename[i]) {
rc = cli_bytecode_context_setparam_int(ctx, i-2, atoi(opts->filename[i]));
if (rc != CL_SUCCESS) {
fprintf(stderr,"Unable to set param %u: %s\n", i-2, cl_strerror(rc));
}
i++;
}
}
if ((opt = optget(opts,"input"))->enabled) {
fd = open(opt->strarg, O_RDONLY);
if (fd == -1) {
fprintf(stderr, "Unable to open input file %s: %s\n", opt->strarg, strerror(errno));
optfree(opts);
exit(5);
}
map = fmap(fd, 0, 0);
if (!map) {
fprintf(stderr, "Unable to map input file %s\n", opt->strarg);
exit(5);
}
rc = cli_bytecode_context_setfile(ctx, map);
if (rc != CL_SUCCESS) {
fprintf(stderr, "Unable to set file %s: %s\n", opt->strarg, cl_strerror(rc));
optfree(opts);
exit(5);
}
}
/* for testing */
ctx->hooks.match_counts = deadbeefcounts;
ctx->hooks.match_offsets = deadbeefcounts;
rc = cli_bytecode_run(&bcs, bc, ctx);
if (rc != CL_SUCCESS) {
fprintf(stderr,"Unable to run bytecode: %s\n", cl_strerror(rc));
} else {
uint64_t v;
if (debug_flag)
printf("[clambc] Bytecode run finished\n");
v = cli_bytecode_context_getresult_int(ctx);
if (debug_flag)
printf("[clambc] Bytecode returned: 0x%llx\n", (long long)v);
}
cli_bytecode_context_destroy(ctx);
if (map)
funmap(map);
cl_engine_free(engine);
free(cctx.fmap);
}
cli_bytecode_destroy(bc);
cli_bytecode_done(&bcs);
free(bc);
optfree(opts);
if (fd != -1)
close(fd);
if (debug_flag)
printf("[clambc] Exiting\n");
cl_cleanup_crypto();
return 0;
}
int main(int argc, char **argv)
{
int ds, dms, ret;
double mb, rmb;
struct timeval t1, t2;
#ifndef _WIN32
sigset_t sigset;
#endif
struct optstruct *opts;
const struct optstruct *opt;
if(check_flevel())
exit(2);
#if !defined(_WIN32) && !defined(C_BEOS)
sigemptyset(&sigset);
sigaddset(&sigset, SIGXFSZ);
sigprocmask(SIG_SETMASK, &sigset, NULL);
#endif
cl_initialize_crypto();
if((opts = optparse(NULL, argc, argv, 1, OPT_CLAMSCAN, 0, NULL)) == NULL) {
mprintf("!Can't parse command line options\n");
return 2;
}
if(optget(opts, "verbose")->enabled) {
mprintf_verbose = 1;
logg_verbose = 1;
}
if(optget(opts, "quiet")->enabled)
mprintf_quiet = 1;
if(optget(opts, "stdout")->enabled)
mprintf_stdout = 1;
if(optget(opts, "debug")->enabled) {
#if defined(C_LINUX)
/* [email protected]: create a dump if needed */
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = RLIM_INFINITY;
if(setrlimit(RLIMIT_CORE, &rlim) < 0)
perror("setrlimit");
#endif
cl_debug(); /* enable debug messages */
}
if (optget(opts, "gen-mdb")->enabled) {
cl_always_gen_section_hash();
}
if(optget(opts, "version")->enabled) {
print_version(optget(opts, "database")->strarg);
optfree(opts);
return 0;
}
if(optget(opts, "help")->enabled) {
optfree(opts);
help();
return 0;
}
if(optget(opts, "recursive")->enabled)
recursion = 1;
if(optget(opts, "infected")->enabled)
printinfected = 1;
if(optget(opts, "suppress-ok-results")->enabled)
printclean = 0;
if(optget(opts, "bell")->enabled)
bell = 1;
/* initialize logger */
if((opt = optget(opts, "log"))->enabled) {
logg_file = opt->strarg;
if(logg("#\n-------------------------------------------------------------------------------\n\n")) {
mprintf("!Problem with internal logger.\n");
optfree(opts);
return 2;
}
} else
logg_file = NULL;
if(actsetup(opts)) {
optfree(opts);
logg_close();
exit(2);
}
memset(&info, 0, sizeof(struct s_info));
gettimeofday(&t1, NULL);
ret = scanmanager(opts);
if(!optget(opts, "no-summary")->enabled) {
gettimeofday(&t2, NULL);
ds = t2.tv_sec - t1.tv_sec;
dms = t2.tv_usec - t1.tv_usec;
ds -= (dms < 0) ? (1):(0);
dms += (dms < 0) ? (1000000):(0);
logg("\n----------- SCAN SUMMARY -----------\n");
logg("Known viruses: %u\n", info.sigs);
logg("Engine version: %s\n", get_version());
logg("Scanned directories: %u\n", info.dirs);
logg("Scanned files: %u\n", info.files);
logg("Infected files: %u\n", info.ifiles);
if(info.errors)
logg("Total errors: %u\n", info.errors);
if(notremoved) {
logg("Not removed: %u\n", notremoved);
}
if(notmoved) {
logg("Not %s: %u\n", optget(opts, "copy")->enabled ? "moved" : "copied", notmoved);
}
mb = info.blocks * (CL_COUNT_PRECISION / 1024) / 1024.0;
logg("Data scanned: %2.2lf MB\n", mb);
rmb = info.rblocks * (CL_COUNT_PRECISION / 1024) / 1024.0;
logg("Data read: %2.2lf MB (ratio %.2f:1)\n", rmb, info.rblocks ? (double)info.blocks/(double)info.rblocks : 0);
logg("Time: %u.%3.3u sec (%u m %u s)\n", ds, dms/1000, ds/60, ds%60);
}
optfree(opts);
cl_cleanup_crypto();
return ret;
}
int main(int argc, char **argv)
{
static struct cl_engine *engine = NULL;
const struct optstruct *opt;
#ifndef _WIN32
struct passwd *user = NULL;
struct sigaction sa;
struct rlimit rlim;
#endif
time_t currtime;
const char *dbdir, *cfgfile;
char *pua_cats = NULL, *pt;
int ret, tcpsock = 0, localsock = 0, i, min_port, max_port;
unsigned int sigs = 0;
int lsockets[2], nlsockets = 0;
unsigned int dboptions = 0;
#ifdef C_LINUX
STATBUF sb;
#endif
if(check_flevel())
exit(1);
#ifndef _WIN32
memset(&sa, 0, sizeof(sa));
sa.sa_handler = SIG_IGN;
sigaction(SIGHUP, &sa, NULL);
sigaction(SIGUSR2, &sa, NULL);
#endif
if((opts = optparse(NULL, argc, argv, 1, OPT_CLAMD, 0, NULL)) == NULL) {
mprintf("!Can't parse command line options\n");
return 1;
}
if(optget(opts, "help")->enabled) {
help();
optfree(opts);
return 0;
}
if(optget(opts, "debug")->enabled) {
#if defined(C_LINUX)
/* [email protected]: create a dump if needed */
rlim.rlim_cur = rlim.rlim_max = RLIM_INFINITY;
if(setrlimit(RLIMIT_CORE, &rlim) < 0)
perror("setrlimit");
#endif
debug_mode = 1;
}
/* parse the config file */
cfgfile = optget(opts, "config-file")->strarg;
pt = strdup(cfgfile);
if((opts = optparse(cfgfile, 0, NULL, 1, OPT_CLAMD, 0, opts)) == NULL) {
fprintf(stderr, "ERROR: Can't open/parse the config file %s\n", pt);
free(pt);
return 1;
}
free(pt);
if(optget(opts, "version")->enabled) {
print_version(optget(opts, "DatabaseDirectory")->strarg);
optfree(opts);
return 0;
}
/* drop privileges */
#ifndef _WIN32
if(geteuid() == 0 && (opt = optget(opts, "User"))->enabled) {
if((user = getpwnam(opt->strarg)) == NULL) {
fprintf(stderr, "ERROR: Can't get information about user %s.\n", opt->strarg);
optfree(opts);
return 1;
}
if(optget(opts, "AllowSupplementaryGroups")->enabled) {
#ifdef HAVE_INITGROUPS
if(initgroups(opt->strarg, user->pw_gid)) {
fprintf(stderr, "ERROR: initgroups() failed.\n");
optfree(opts);
return 1;
}
#else
mprintf("!AllowSupplementaryGroups: initgroups() is not available, please disable AllowSupplementaryGroups in %s\n", cfgfile);
optfree(opts);
return 1;
#endif
} else {
#ifdef HAVE_SETGROUPS
if(setgroups(1, &user->pw_gid)) {
fprintf(stderr, "ERROR: setgroups() failed.\n");
optfree(opts);
return 1;
}
#endif
}
if(setgid(user->pw_gid)) {
fprintf(stderr, "ERROR: setgid(%d) failed.\n", (int) user->pw_gid);
optfree(opts);
return 1;
}
if(setuid(user->pw_uid)) {
fprintf(stderr, "ERROR: setuid(%d) failed.\n", (int) user->pw_uid);
optfree(opts);
return 1;
}
}
#endif
/* initialize logger */
logg_lock = !optget(opts, "LogFileUnlock")->enabled;
logg_time = optget(opts, "LogTime")->enabled;
logok = optget(opts, "LogClean")->enabled;
logg_size = optget(opts, "LogFileMaxSize")->numarg;
logg_verbose = mprintf_verbose = optget(opts, "LogVerbose")->enabled;
if (logg_size)
logg_rotate = optget(opts, "LogRotate")->enabled;
mprintf_send_timeout = optget(opts, "SendBufTimeout")->numarg;
do { /* logger initialized */
if((opt = optget(opts, "LogFile"))->enabled) {
char timestr[32];
logg_file = opt->strarg;
if(!cli_is_abspath(logg_file)) {
fprintf(stderr, "ERROR: LogFile requires full path.\n");
ret = 1;
break;
}
time(&currtime);
if(logg("#+++ Started at %s", cli_ctime(&currtime, timestr, sizeof(timestr)))) {
fprintf(stderr, "ERROR: Can't initialize the internal logger\n");
ret = 1;
break;
}
} else
logg_file = NULL;
if (optget(opts,"DevLiblog")->enabled)
cl_set_clcb_msg(msg_callback);
if((ret = cl_init(CL_INIT_DEFAULT))) {
logg("!Can't initialize libclamav: %s\n", cl_strerror(ret));
ret = 1;
break;
}
if(optget(opts, "Debug")->enabled) /* enable debug messages in libclamav */ {
cl_debug();
logg_verbose = 2;
}
#if defined(USE_SYSLOG) && !defined(C_AIX)
if(optget(opts, "LogSyslog")->enabled) {
int fac = LOG_LOCAL6;
opt = optget(opts, "LogFacility");
if((fac = logg_facility(opt->strarg)) == -1) {
logg("!LogFacility: %s: No such facility.\n", opt->strarg);
ret = 1;
break;
}
openlog("clamd", LOG_PID, fac);
logg_syslog = 1;
}
#endif
#ifdef C_LINUX
procdev = 0;
if(CLAMSTAT("/proc", &sb) != -1 && !sb.st_size)
procdev = sb.st_dev;
#endif
/* check socket type */
if(optget(opts, "TCPSocket")->enabled)
tcpsock = 1;
if(optget(opts, "LocalSocket")->enabled)
localsock = 1;
if(!tcpsock && !localsock) {
logg("!Please define server type (local and/or TCP).\n");
ret = 1;
break;
}
logg("#clamd daemon %s (OS: "TARGET_OS_TYPE", ARCH: "TARGET_ARCH_TYPE", CPU: "TARGET_CPU_TYPE")\n", get_version());
#ifndef _WIN32
if(user)
logg("#Running as user %s (UID %u, GID %u)\n", user->pw_name, user->pw_uid, user->pw_gid);
#endif
#if defined(RLIMIT_DATA) && defined(C_BSD)
if (getrlimit(RLIMIT_DATA, &rlim) == 0) {
/* bb #1941.
* On 32-bit FreeBSD if you set ulimit -d to >2GB then mmap() will fail
* too soon (after ~120 MB).
* Set limit lower than 2G if on 32-bit */
uint64_t lim = rlim.rlim_cur;
if (sizeof(void*) == 4 &&
lim > (1ULL << 31)) {
rlim.rlim_cur = 1ULL << 31;
if (setrlimit(RLIMIT_DATA, &rlim) < 0)
logg("!setrlimit(RLIMIT_DATA) failed: %s\n", strerror(errno));
else
logg("Running on 32-bit system, and RLIMIT_DATA > 2GB, lowering to 2GB!\n");
}
}
#endif
if(logg_size)
logg("#Log file size limited to %u bytes.\n", logg_size);
else
logg("#Log file size limit disabled.\n");
min_port = optget(opts, "StreamMinPort")->numarg;
max_port = optget(opts, "StreamMaxPort")->numarg;
if (min_port < 1024 || min_port > max_port || max_port > 65535) {
logg("!Invalid StreamMinPort/StreamMaxPort: %d, %d\n", min_port, max_port);
ret = 1;
break;
}
if(!(engine = cl_engine_new())) {
logg("!Can't initialize antivirus engine\n");
ret = 1;
break;
}
/* load the database(s) */
dbdir = optget(opts, "DatabaseDirectory")->strarg;
logg("#Reading databases from %s\n", dbdir);
if(optget(opts, "DetectPUA")->enabled) {
dboptions |= CL_DB_PUA;
if((opt = optget(opts, "ExcludePUA"))->enabled) {
dboptions |= CL_DB_PUA_EXCLUDE;
i = 0;
logg("#Excluded PUA categories:");
while(opt) {
if(!(pua_cats = realloc(pua_cats, i + strlen(opt->strarg) + 3))) {
logg("!Can't allocate memory for pua_cats\n");
cl_engine_free(engine);
ret = 1;
break;
}
logg("# %s", opt->strarg);
sprintf(pua_cats + i, ".%s", opt->strarg);
i += strlen(opt->strarg) + 1;
pua_cats[i] = 0;
opt = opt->nextarg;
}
if (ret)
break;
logg("#\n");
pua_cats[i] = '.';
pua_cats[i + 1] = 0;
}
if((opt = optget(opts, "IncludePUA"))->enabled) {
if(pua_cats) {
logg("!ExcludePUA and IncludePUA cannot be used at the same time\n");
free(pua_cats);
ret = 1;
break;
}
dboptions |= CL_DB_PUA_INCLUDE;
i = 0;
logg("#Included PUA categories:");
while(opt) {
if(!(pua_cats = realloc(pua_cats, i + strlen(opt->strarg) + 3))) {
logg("!Can't allocate memory for pua_cats\n");
ret = 1;
break;
}
logg("# %s", opt->strarg);
sprintf(pua_cats + i, ".%s", opt->strarg);
i += strlen(opt->strarg) + 1;
pua_cats[i] = 0;
opt = opt->nextarg;
}
if (ret)
break;
logg("#\n");
pua_cats[i] = '.';
pua_cats[i + 1] = 0;
}
if(pua_cats) {
if((ret = cl_engine_set_str(engine, CL_ENGINE_PUA_CATEGORIES, pua_cats))) {
logg("!cli_engine_set_str(CL_ENGINE_PUA_CATEGORIES) failed: %s\n", cl_strerror(ret));
free(pua_cats);
ret = 1;
break;
}
free(pua_cats);
}
} else {
logg("#Not loading PUA signatures.\n");
}
if(optget(opts, "OfficialDatabaseOnly")->enabled) {
dboptions |= CL_DB_OFFICIAL_ONLY;
logg("#Only loading official signatures.\n");
}
/* set the temporary dir */
if((opt = optget(opts, "TemporaryDirectory"))->enabled) {
if((ret = cl_engine_set_str(engine, CL_ENGINE_TMPDIR, opt->strarg))) {
logg("!cli_engine_set_str(CL_ENGINE_TMPDIR) failed: %s\n", cl_strerror(ret));
ret = 1;
break;
}
}
cl_engine_set_clcb_hash(engine, hash_callback);
detstats_clear();
if(optget(opts, "LeaveTemporaryFiles")->enabled)
cl_engine_set_num(engine, CL_ENGINE_KEEPTMP, 1);
if(optget(opts, "PhishingSignatures")->enabled)
dboptions |= CL_DB_PHISHING;
else
logg("#Not loading phishing signatures.\n");
if(optget(opts,"Bytecode")->enabled) {
dboptions |= CL_DB_BYTECODE;
if((opt = optget(opts,"BytecodeSecurity"))->enabled) {
enum bytecode_security s;
if (!strcmp(opt->strarg, "TrustSigned")) {
s = CL_BYTECODE_TRUST_SIGNED;
logg("#Bytecode: Security mode set to \"TrustSigned\".\n");
} else if (!strcmp(opt->strarg, "Paranoid")) {
s = CL_BYTECODE_TRUST_NOTHING;
logg("#Bytecode: Security mode set to \"Paranoid\".\n");
} else {
logg("!Unable to parse bytecode security setting:%s\n",
opt->strarg);
ret = 1;
break;
}
if ((ret = cl_engine_set_num(engine, CL_ENGINE_BYTECODE_SECURITY, s))) {
logg("^Invalid bytecode security setting %s: %s\n", opt->strarg, cl_strerror(ret));
ret = 1;
break;
}
}
if((opt = optget(opts,"BytecodeUnsigned"))->enabled) {
dboptions |= CL_DB_BYTECODE_UNSIGNED;
logg("#Bytecode: Enabled support for unsigned bytecode.\n");
}
if((opt = optget(opts,"BytecodeMode"))->enabled) {
enum bytecode_mode mode;
if (!strcmp(opt->strarg, "ForceJIT"))
mode = CL_BYTECODE_MODE_JIT;
else if(!strcmp(opt->strarg, "ForceInterpreter"))
mode = CL_BYTECODE_MODE_INTERPRETER;
else if(!strcmp(opt->strarg, "Test"))
mode = CL_BYTECODE_MODE_TEST;
else
mode = CL_BYTECODE_MODE_AUTO;
cl_engine_set_num(engine, CL_ENGINE_BYTECODE_MODE, mode);
}
if((opt = optget(opts,"BytecodeTimeout"))->enabled) {
cl_engine_set_num(engine, CL_ENGINE_BYTECODE_TIMEOUT, opt->numarg);
}
} else
logg("#Bytecode support disabled.\n");
if(optget(opts,"PhishingScanURLs")->enabled)
dboptions |= CL_DB_PHISHING_URLS;
else
logg("#Disabling URL based phishing detection.\n");
if(optget(opts,"DevACOnly")->enabled) {
logg("#Only using the A-C matcher.\n");
cl_engine_set_num(engine, CL_ENGINE_AC_ONLY, 1);
}
if((opt = optget(opts, "DevACDepth"))->enabled) {
cl_engine_set_num(engine, CL_ENGINE_AC_MAXDEPTH, opt->numarg);
logg("#Max A-C depth set to %u\n", (unsigned int) opt->numarg);
}
if((ret = cl_load(dbdir, engine, &sigs, dboptions))) {
logg("!%s\n", cl_strerror(ret));
ret = 1;
break;
}
if (optget(opts, "DisableCertCheck")->enabled)
engine->dconf->pe |= PE_CONF_DISABLECERT;
logg("#Loaded %u signatures.\n", sigs);
if((ret = cl_engine_compile(engine)) != 0) {
logg("!Database initialization error: %s\n", cl_strerror(ret));
ret = 1;
break;
}
if(tcpsock) {
if ((lsockets[nlsockets] = tcpserver(opts)) == -1) {
ret = 1;
break;
}
nlsockets++;
}
#ifndef _WIN32
if(localsock) {
mode_t sock_mode, umsk = umask(0777); /* socket is created with 000 to avoid races */
if ((lsockets[nlsockets] = localserver(opts)) == -1) {
ret = 1;
umask(umsk);
break;
}
umask(umsk); /* restore umask */
if(optget(opts, "LocalSocketGroup")->enabled) {
char *gname = optget(opts, "LocalSocketGroup")->strarg, *end;
gid_t sock_gid = strtol(gname, &end, 10);
if(*end) {
struct group *pgrp = getgrnam(gname);
if(!pgrp) {
logg("!Unknown group %s\n", gname);
ret = 1;
break;
}
sock_gid = pgrp->gr_gid;
}
if(chown(optget(opts, "LocalSocket")->strarg, -1, sock_gid)) {
logg("!Failed to change socket ownership to group %s\n", gname);
ret = 1;
break;
}
}
if(optget(opts, "LocalSocketMode")->enabled) {
char *end;
sock_mode = strtol(optget(opts, "LocalSocketMode")->strarg, &end, 8);
if(*end) {
logg("!Invalid LocalSocketMode %s\n", optget(opts, "LocalSocketMode")->strarg);
ret = 1;
break;
}
} else
sock_mode = 0777 /* & ~umsk*/; /* conservative default: umask was 0 in clamd < 0.96 */
if(chmod(optget(opts, "LocalSocket")->strarg, sock_mode & 0666)) {
logg("!Cannot set socket permission to %s\n", optget(opts, "LocalSocketMode")->strarg);
ret = 1;
break;
}
nlsockets++;
}
/* fork into background */
if(!optget(opts, "Foreground")->enabled) {
#ifdef C_BSD
/* workaround for OpenBSD bug, see https://wwws.clamav.net/bugzilla/show_bug.cgi?id=885 */
for(ret=0;ret<nlsockets;ret++) {
if (fcntl(lsockets[ret], F_SETFL, fcntl(lsockets[ret], F_GETFL) | O_NONBLOCK) == -1) {
logg("!fcntl for lsockets[] failed\n");
close(lsockets[ret]);
ret = 1;
break;
}
}
#endif
gengine = engine;
atexit(free_engine);
if(daemonize() == -1) {
logg("!daemonize() failed: %s\n", strerror(errno));
ret = 1;
break;
}
gengine = NULL;
#ifdef C_BSD
for(ret=0;ret<nlsockets;ret++) {
if (fcntl(lsockets[ret], F_SETFL, fcntl(lsockets[ret], F_GETFL) & ~O_NONBLOCK) == -1) {
logg("!fcntl for lsockets[] failed\n");
close(lsockets[ret]);
ret = 1;
break;
}
}
#endif
if(!debug_mode)
if(chdir("/") == -1)
logg("^Can't change current working directory to root\n");
} else
foreground = 1;
#endif
ret = recvloop_th(lsockets, nlsockets, engine, dboptions, opts);
} while (0);
logg("*Closing the main socket%s.\n", (nlsockets > 1) ? "s" : "");
for (i = 0; i < nlsockets; i++) {
closesocket(lsockets[i]);
}
#ifndef _WIN32
if(nlsockets && localsock) {
opt = optget(opts, "LocalSocket");
if(unlink(opt->strarg) == -1)
logg("!Can't unlink the socket file %s\n", opt->strarg);
else
logg("Socket file removed.\n");
}
#endif
logg_close();
optfree(opts);
return ret;
}
