struct group *pr_auth_getgrent(pool *p) {
cmd_rec *cmd = NULL;
modret_t *mr = NULL;
struct group *res = NULL;
cmd = make_cmd(p, 0);
mr = dispatch_auth(cmd, "getgrent", NULL);
if (MODRET_ISHANDLED(mr) && MODRET_HASDATA(mr))
res = mr->data;
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
/* Sanity check */
if (res == NULL)
return NULL;
/* Make sure the GID is not -1 */
if (res->gr_gid == (gid_t) -1) {
pr_log_pri(PR_LOG_ERR, "error: GID of -1 not allowed");
return NULL;
}
return res;
}
struct group *pr_auth_getgrgid(pool *p, gid_t gid) {
cmd_rec *cmd = NULL;
modret_t *mr = NULL;
struct group *res = NULL;
cmd = make_cmd(p, 1, (void *) &gid);
mr = dispatch_auth(cmd, "getgrgid", NULL);
if (MODRET_ISHANDLED(mr) && MODRET_HASDATA(mr))
res = mr->data;
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
/* Sanity check */
if (res == NULL) {
errno = ENOENT;
return NULL;
}
/* Make sure the GID is not -1 */
if (res->gr_gid == (gid_t) -1) {
pr_log_pri(PR_LOG_ERR, "error: GID of -1 not allowed");
return NULL;
}
pr_log_debug(DEBUG10, "retrieved group '%s' for GID %lu",
res->gr_name, (unsigned long) gid);
return res;
}
static int process_command(int argc, char **argv)
{
static struct option long_options[] = {
{ "dump", no_argument, 0, 'd' },
{ "codegen", no_argument, 0, 'c' },
{ "make", no_argument, 0, 'm' },
{ 0, 0, 0, 0 }
};
opterr = 0;
optind = 1;
int index = 0;
const char *spec = "aer";
switch (getopt_long(MIN(argc, 2), argv, spec, long_options, &index)) {
case 'a':
return analyse(argc, argv);
case 'e':
return elaborate(argc, argv);
case 'r':
return run(argc, argv);
case 'd':
return dump_cmd(argc, argv);
case 'c':
return codegen(argc, argv);
case 'm':
return make_cmd(argc, argv);
default:
fatal("missing command, try %s --help for usage", PACKAGE);
return EXIT_FAILURE;
}
}
CMD* make_cmd(token_list** list_ref)
{
token_list* list = *list_ref;
if (!list) return make_error_cmd("could not form command (no tokens)");
CMD* cmd_tree = make_andor(&list);
if (cmd_tree->type == ERROR) return cmd_tree;
int next_type = type(list);
if (next_type == SEP_END || next_type == SEP_BG) {
advance(&list);
CMD* parent = mallocCMD();
parent->type = next_type;
parent->left = cmd_tree;
cmd_tree = parent;
// See if it is possible to make a subcommand; if not, return to initial
// state (because subcommand is optional following ; or &
token_list* old_head = list; // Hold onto a copy in case sub command
// returns an error
CMD* sub_cmd = make_cmd(&list);
if (sub_cmd->type == ERROR) {
freeCMD(sub_cmd);
sub_cmd = NULL;
list = old_head;
}
cmd_tree->right = sub_cmd;
}
*list_ref = list;
return cmd_tree;
}
struct passwd *pr_auth_getpwent(pool *p) {
cmd_rec *cmd = NULL;
modret_t *mr = NULL;
struct passwd *res = NULL;
cmd = make_cmd(p, 0);
mr = dispatch_auth(cmd, "getpwent", NULL);
if (MODRET_ISHANDLED(mr) &&
MODRET_HASDATA(mr)) {
res = mr->data;
}
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
/* Sanity check */
if (res == NULL)
return NULL;
/* Make sure the UID and GID are not -1 */
if (res->pw_uid == (uid_t) -1) {
pr_log_pri(PR_LOG_WARNING, "error: UID of -1 not allowed");
return NULL;
}
if (res->pw_gid == (gid_t) -1) {
pr_log_pri(PR_LOG_WARNING, "error: GID of -1 not allowed");
return NULL;
}
return res;
}
const char *pr_auth_gid2name(pool *p, gid_t gid) {
cmd_rec *cmd = NULL;
modret_t *mr = NULL;
static char namebuf[64];
char *res = NULL;
int have_name = FALSE;
memset(namebuf, '\0', sizeof(namebuf));
gidcache_create();
if ((auth_caching & PR_AUTH_CACHE_FL_GID2NAME) &&
gid_tab) {
void *v = NULL;
v = pr_table_kget(gid_tab, (const void *) &gid, sizeof(gid_t), NULL);
if (v) {
sstrncpy(namebuf, v, sizeof(namebuf));
pr_trace_msg(trace_channel, 8,
"using name '%s' from gidcache for GID %lu", namebuf,
(unsigned long) gid);
res = namebuf;
return res;
} else {
pr_trace_msg(trace_channel, 9,
"no value found in gidcache for GID %lu: %s", (unsigned long) gid,
strerror(errno));
}
}
cmd = make_cmd(p, 1, (void *) &gid);
mr = dispatch_auth(cmd, "gid2name", NULL);
if (MODRET_ISHANDLED(mr) &&
MODRET_HASDATA(mr)) {
res = mr->data;
sstrncpy(namebuf, res, sizeof(namebuf));
res = namebuf;
gidcache_add(gid, res);
have_name = TRUE;
}
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
if (!have_name) {
snprintf(namebuf, sizeof(namebuf)-1, "%lu", (unsigned long) gid);
}
res = namebuf;
return res;
}
static void run_shell(void)
{
int done = 0;
static const char *help_argv[] = { HELP_COMMAND, NULL };
/* Print help if enabled */
run_command_v_opt(help_argv, RUN_SILENT_EXEC_FAILURE);
do {
struct strbuf line = STRBUF_INIT;
const char *prog;
char *full_cmd;
char *rawargs;
char *split_args;
const char **argv;
int code;
int count;
fprintf(stderr, "git> ");
if (strbuf_getline(&line, stdin, '\n') == EOF) {
fprintf(stderr, "\n");
strbuf_release(&line);
break;
}
strbuf_trim(&line);
rawargs = strbuf_detach(&line, NULL);
split_args = xstrdup(rawargs);
count = split_cmdline(split_args, &argv);
if (count < 0) {
fprintf(stderr, "invalid command format '%s': %s\n", rawargs,
split_cmdline_strerror(count));
free(split_args);
free(rawargs);
continue;
}
prog = argv[0];
if (!strcmp(prog, "")) {
} else if (!strcmp(prog, "quit") || !strcmp(prog, "logout") ||
!strcmp(prog, "exit") || !strcmp(prog, "bye")) {
done = 1;
} else if (is_valid_cmd_name(prog)) {
full_cmd = make_cmd(prog);
argv[0] = full_cmd;
code = run_command_v_opt(argv, RUN_SILENT_EXEC_FAILURE);
if (code == -1 && errno == ENOENT) {
fprintf(stderr, "unrecognized command '%s'\n", prog);
}
free(full_cmd);
} else {
fprintf(stderr, "invalid command format '%s'\n", prog);
}
free(argv);
free(rawargs);
} while (!done);
}
cmd *parseCmd(char *s)
/*to break up string by '>' and then pass that off to parseRedToken*/
{
char *saveptr=s;
char *token;
token = strtok_r(saveptr, ">", &saveptr);
cmd *cm = make_cmd(parseRedToken(token));
cmd *f = cm;
while(token != NULL){
token = strtok_r(NULL, ">", &saveptr);
if(token == NULL) {
return f;
}
cm->next = make_cmd(parseRedToken(token));
cm = cm->next;
}
return f;
}
void pr_auth_endgrent(pool *p) {
cmd_rec *cmd = NULL;
cmd = make_cmd(p, 0);
(void) dispatch_auth(cmd, "endgrent", NULL);
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
return;
}
char *status_equal_zero(char *tmp, char *str, int i, int status)
{
(void)status;
if (i == 0 && tmp[0] != '.' && tmp[0] != '/')
tmp = show_tab(tmp);
else if (tmp[0] == '-')
{
if (!tmp[1])
show_diff_option(make_cmd(str));
}
else
tmp = argument_completion(tmp, str);
return (tmp);
}
int main (int argc, char *argv[])
{
int i, c, fd, len;
unsigned char rsp[3], cmd[7] = {0x08,0x22,0,0,0,0,0};
if (-1 == system("stty -F /dev/ttyAMA0 -ixon -ixoff -crtscts speed 9600")) {
perror("stty");
return EIO;
}
fd = open("/dev/ttyAMA0", O_RDWR);
if (fd == -1) {
perror("/dev/ttyAMA0");
return EIO;
}
for (i = 1; i < argc ; ++i) {
char *arg = argv[i];
unsigned char *codes = NULL;
if (0 == strcmp("raw", arg)) {
codes = get_raw_hex(++i, argv);
i += 4;
} else {
for (c = 0; commands[c].name; ++c) {
if (0 == strcmp(commands[c].name, arg)) {
codes = commands[c].codes;
break;
}
}
}
if (!codes) {
fprintf(stderr, "unknown command: %s\n", arg);
return EINVAL;
}
make_cmd(cmd, codes);
if (7 != write(fd, cmd, 7)) {
perror("write()");
return EIO;
}
memset(rsp, 0, 3);
len = read(fd, rsp, 3);
printf("response: (%d) 0x%02x 0x%02x 0x%02x\n", len, rsp[0], rsp[1], rsp[2]);
if ((i + 1) < argc)
sleep(1);
}
return 0;
}
void on_setup(Executor& exec)
{
if (exe.empty()) //cmd style
{
exec.exe = args.front().c_str();
exec.cmd_style = true;
}
else
exec.exe = &exe.front();
if (!args.empty())
{
cmd_impl = make_cmd();
exec.cmd_line = cmd_impl.data();
}
}
static void get_request_str(char *uid, char *cmd)
{
int len = strlen(uid);
char *msg = uid;
char index[2] = {0};
memcpy(index, msg+len-2, 1);
char key[18] = {0};
snprintf(key, 18, "contact_upload_%s", index);
char *field = uid;
if (make_cmd(cmd, REDIS_CMD_LEN, 3, "hget", key, field) < 0)
{
print_log(LOG_TYPE_ERROR, "hget %s %s error, file = %s, line = %d", key, field, __FILE__, __LINE__);
return;
}
}
/* The top level function of a recursive descent parser for the grammar defined
* in parse.h. Parses a token list into a command structure.
*
* @list = list of tokens to parse
*
* Returns: a pointer to the resulting command structure; NULL if errors found
*/
CMD* parse(token_list* list)
{
CMD* parse_tree = make_cmd(&list);
if (parse_tree->type == ERROR) {
assert(parse_tree);
ERROR(parse_tree->argv[0]);
freeCMD(parse_tree);
return NULL;
}
if (list) {
ERROR("could not parse remaining tokens");
freeCMD(parse_tree);
return NULL;
}
return parse_tree;
}
uid_t pr_auth_name2uid(pool *p, const char *name) {
cmd_rec *cmd = NULL;
modret_t *mr = NULL;
uid_t res = (uid_t) -1;
cmd = make_cmd(p, 1, name);
mr = dispatch_auth(cmd, "name2uid", NULL);
if (MODRET_ISHANDLED(mr))
res = *((uid_t *) mr->data);
else
errno = EINVAL;
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
return res;
}
void pr_auth_endpwent(pool *p) {
cmd_rec *cmd = NULL;
cmd = make_cmd(p, 0);
(void) dispatch_auth(cmd, "endpwent", NULL);
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
if (auth_tab) {
pr_trace_msg(trace_channel, 5, "emptying authcache");
(void) pr_table_empty(auth_tab);
(void) pr_table_free(auth_tab);
auth_tab = NULL;
}
return;
}
int pr_auth_authorize(pool *p, const char *name) {
cmd_rec *cmd = NULL;
modret_t *mr = NULL;
module *m = NULL;
int res = PR_AUTH_OK;
cmd = make_cmd(p, 1, name);
if (auth_tab) {
/* Fetch the specific module to be used for authenticating this user. */
void *v = pr_table_get(auth_tab, name, NULL);
if (v) {
m = *((module **) v);
pr_trace_msg(trace_channel, 4,
"using module 'mod_%s.c' from authcache to authorize user '%s'",
m->name, name);
}
}
mr = dispatch_auth(cmd, "authorize", m ? &m : NULL);
/* Unlike the other auth calls, we assume here that unless the handlers
* explicitly return ERROR, the user is authorized. Thus HANDLED and
* DECLINED are both treated as "yes, this user is authorized". This
* handles the case where the authenticating module (e.g. mod_sql)
* does NOT provide an 'authorize' handler.
*/
if (MODRET_ISERROR(mr)) {
res = MODRET_ERROR(mr);
}
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
return res;
}
int pr_auth_requires_pass(pool *p, const char *name) {
cmd_rec *cmd;
modret_t *mr;
int res = TRUE;
cmd = make_cmd(p, 1, name);
mr = dispatch_auth(cmd, "requires_pass", NULL);
if (MODRET_ISHANDLED(mr))
res = FALSE;
else if (MODRET_ISERROR(mr))
res = MODRET_ERROR(mr);
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
return res;
}
struct passwd *pr_auth_getpwuid(pool *p, uid_t uid) {
cmd_rec *cmd = NULL;
modret_t *mr = NULL;
struct passwd *res = NULL;
cmd = make_cmd(p, 1, (void *) &uid);
mr = dispatch_auth(cmd, "getpwuid", NULL);
if (MODRET_ISHANDLED(mr) &&
MODRET_HASDATA(mr)) {
res = mr->data;
}
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
/* Sanity check */
if (res == NULL) {
errno = ENOENT;
return NULL;
}
/* Make sure the UID and GID are not -1 */
if (res->pw_uid == (uid_t) -1) {
pr_log_pri(PR_LOG_WARNING, "error: UID of -1 not allowed");
return NULL;
}
if (res->pw_gid == (gid_t) -1) {
pr_log_pri(PR_LOG_WARNING, "error: GID of -1 not allowed");
return NULL;
}
pr_log_debug(DEBUG10, "retrieved user '%s' for UID %lu",
res->pw_name, (unsigned long) uid);
return res;
}
static void reids_heartbeat(connector_t pconredis)
{
struct timeval tm_now;
gettimeofday(&tm_now, NULL);
if ((tm_now.tv_sec - pconredis->pworker->ticktime) < REDIS_IDLETIME)
return;
pconredis->pworker->ticktime = tm_now.tv_sec;
char *key = REDIS_HBKEY;
char cmd[REDIS_CMD_LEN] = {0};
if (make_cmd(cmd, REDIS_CMD_LEN, 2, "get", key) < 0)
{
print_log(LOG_TYPE_ERROR, "get %s error, file = %s, line = %d", key, __FILE__, __LINE__);
return;
}
int len = strlen(cmd);
buffer_write(pconredis->pwritebuf, cmd, len);
connector_write(pconredis);
}
struct group *pr_auth_getgrnam(pool *p, const char *name) {
cmd_rec *cmd = NULL;
modret_t *mr = NULL;
struct group *res = NULL;
cmd = make_cmd(p, 1, name);
mr = dispatch_auth(cmd, "getgrnam", NULL);
if (MODRET_ISHANDLED(mr) &&
MODRET_HASDATA(mr)) {
res = mr->data;
}
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
/* Sanity check */
if (res == NULL) {
errno = ENOENT;
return NULL;
}
/* Make sure the GID is not -1 */
if (res->gr_gid == (gid_t) -1) {
pr_log_pri(PR_LOG_WARNING, "error: GID of -1 not allowed");
return NULL;
}
gidcache_add(res->gr_gid, name);
pr_log_debug(DEBUG10, "retrieved GID %lu for group '%s'",
(unsigned long) res->gr_gid, name);
return res;
}
int main(int argc, char **argv)
{
char *prog;
const char **user_argv;
struct commands *cmd;
int devnull_fd;
int count;
git_setup_gettext();
git_extract_argv0_path(argv[0]);
/*
* Always open file descriptors 0/1/2 to avoid clobbering files
* in die(). It also avoids not messing up when the pipes are
* dup'ed onto stdin/stdout/stderr in the child processes we spawn.
*/
devnull_fd = open("/dev/null", O_RDWR);
while (devnull_fd >= 0 && devnull_fd <= 2)
devnull_fd = dup(devnull_fd);
if (devnull_fd == -1)
die_errno("opening /dev/null failed");
close (devnull_fd);
/*
* Special hack to pretend to be a CVS server
*/
if (argc == 2 && !strcmp(argv[1], "cvs server")) {
argv--;
} else if (argc == 1) {
/* Allow the user to run an interactive shell */
cd_to_homedir();
if (access(COMMAND_DIR, R_OK | X_OK) == -1) {
die("Interactive git shell is not enabled.\n"
"hint: ~/" COMMAND_DIR " should exist "
"and have read and execute access.");
}
run_shell();
exit(0);
} else if (argc != 3 || strcmp(argv[1], "-c")) {
/*
* We do not accept any other modes except "-c" followed by
* "cmd arg", where "cmd" is a very limited subset of git
* commands or a command in the COMMAND_DIR
*/
die("Run with no arguments or with -c cmd");
}
prog = xstrdup(argv[2]);
if (!strncmp(prog, "git", 3) && isspace(prog[3]))
/* Accept "git foo" as if the caller said "git-foo". */
prog[3] = '-';
for (cmd = cmd_list ; cmd->name ; cmd++) {
int len = strlen(cmd->name);
char *arg;
if (strncmp(cmd->name, prog, len))
continue;
arg = NULL;
switch (prog[len]) {
case '\0':
arg = NULL;
break;
case ' ':
arg = prog + len + 1;
break;
default:
continue;
}
exit(cmd->exec(cmd->name, arg));
}
cd_to_homedir();
count = split_cmdline(prog, &user_argv);
if (count >= 0) {
if (is_valid_cmd_name(user_argv[0])) {
prog = make_cmd(user_argv[0]);
user_argv[0] = prog;
execv(user_argv[0], (char *const *) user_argv);
}
free(prog);
free(user_argv);
die("unrecognized command '%s'", argv[2]);
} else {
free(prog);
die("invalid command format '%s': %s", argv[2],
split_cmdline_strerror(count));
}
}
int pr_auth_check(pool *p, const char *cpw, const char *name, const char *pw) {
cmd_rec *cmd = NULL;
modret_t *mr = NULL;
module *m = NULL;
int res = PR_AUTH_BADPWD;
cmd = make_cmd(p, 3, cpw, name, pw);
/* First, check for any of the modules in the "authenticating only" list
* of modules. This is usually only mod_auth_pam, but other modules
* might also add themselves (e.g. mod_radius under certain conditions).
*/
if (auth_module_list) {
struct auth_module_elt *elt;
for (elt = (struct auth_module_elt *) auth_module_list->xas_list; elt;
elt = elt->next) {
m = pr_module_get(elt->name);
if (m) {
mr = dispatch_auth(cmd, "check", &m);
if (MODRET_ISHANDLED(mr)) {
pr_trace_msg(trace_channel, 4,
"module '%s' used for authenticating user '%s'", elt->name, name);
res = MODRET_HASDATA(mr) ? PR_AUTH_RFC2228_OK : PR_AUTH_OK;
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
return res;
}
if (MODRET_ISERROR(mr)) {
res = MODRET_ERROR(mr);
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
return res;
}
m = NULL;
}
}
}
if (auth_tab) {
/* Fetch the specific module to be used for authenticating this user. */
void *v = pr_table_get(auth_tab, name, NULL);
if (v) {
m = *((module **) v);
pr_trace_msg(trace_channel, 4,
"using module 'mod_%s.c' from authcache to authenticate user '%s'",
m->name, name);
}
}
mr = dispatch_auth(cmd, "check", m ? &m : NULL);
if (MODRET_ISHANDLED(mr))
res = MODRET_HASDATA(mr) ? PR_AUTH_RFC2228_OK : PR_AUTH_OK;
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
return res;
}
int cmd_main(int argc, const char **argv)
{
char *prog;
const char **user_argv;
struct commands *cmd;
int count;
/*
* Special hack to pretend to be a CVS server
*/
if (argc == 2 && !strcmp(argv[1], "cvs server")) {
argv--;
} else if (argc == 1) {
/* Allow the user to run an interactive shell */
cd_to_homedir();
if (access(COMMAND_DIR, R_OK | X_OK) == -1) {
die("Interactive git shell is not enabled.\n"
"hint: ~/" COMMAND_DIR " should exist "
"and have read and execute access.");
}
run_shell();
exit(0);
} else if (argc != 3 || strcmp(argv[1], "-c")) {
/*
* We do not accept any other modes except "-c" followed by
* "cmd arg", where "cmd" is a very limited subset of git
* commands or a command in the COMMAND_DIR
*/
die("Run with no arguments or with -c cmd");
}
prog = xstrdup(argv[2]);
if (!strncmp(prog, "git", 3) && isspace(prog[3]))
/* Accept "git foo" as if the caller said "git-foo". */
prog[3] = '-';
for (cmd = cmd_list ; cmd->name ; cmd++) {
int len = strlen(cmd->name);
char *arg;
if (strncmp(cmd->name, prog, len))
continue;
arg = NULL;
switch (prog[len]) {
case '\0':
arg = NULL;
break;
case ' ':
arg = prog + len + 1;
break;
default:
continue;
}
exit(cmd->exec(cmd->name, arg));
}
cd_to_homedir();
count = split_cmdline(prog, &user_argv);
if (count >= 0) {
if (is_valid_cmd_name(user_argv[0])) {
prog = make_cmd(user_argv[0]);
user_argv[0] = prog;
execv(user_argv[0], (char *const *) user_argv);
}
free(prog);
free(user_argv);
die("unrecognized command '%s'", argv[2]);
} else {
free(prog);
die("invalid command format '%s': %s", argv[2],
split_cmdline_strerror(count));
}
}
struct passwd *pr_auth_getpwnam(pool *p, const char *name) {
cmd_rec *cmd = NULL;
modret_t *mr = NULL;
struct passwd *res = NULL;
module *m = NULL;
cmd = make_cmd(p, 1, name);
mr = dispatch_auth(cmd, "getpwnam", &m);
if (MODRET_ISHANDLED(mr) &&
MODRET_HASDATA(mr))
res = mr->data;
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
/* Sanity check */
if (res == NULL) {
errno = ENOENT;
return NULL;
}
/* Make sure the UID and GID are not -1 */
if (res->pw_uid == (uid_t) -1) {
pr_log_pri(PR_LOG_ERR, "error: UID of -1 not allowed");
return NULL;
}
if (res->pw_gid == (gid_t) -1) {
pr_log_pri(PR_LOG_ERR, "error: GID of -1 not allowed");
return NULL;
}
if ((auth_caching & PR_AUTH_CACHE_FL_AUTH_MODULE) &&
!auth_tab &&
auth_pool) {
auth_tab = pr_table_alloc(auth_pool, 0);
}
if (m &&
auth_tab) {
int count = 0;
void *value = NULL;
value = palloc(auth_pool, sizeof(module *));
*((module **) value) = m;
count = pr_table_exists(auth_tab, name);
if (count <= 0) {
if (pr_table_add(auth_tab, pstrdup(auth_pool, name), value,
sizeof(module *)) < 0) {
pr_trace_msg(trace_channel, 3,
"error adding module 'mod_%s.c' for user '%s' to the authcache: %s",
m->name, name, strerror(errno));
} else {
pr_trace_msg(trace_channel, 5,
"stashed module 'mod_%s.c' for user '%s' in the authcache",
m->name, name);
}
} else {
if (pr_table_set(auth_tab, pstrdup(auth_pool, name), value,
sizeof(module *)) < 0) {
pr_trace_msg(trace_channel, 3,
"error setting module 'mod_%s.c' for user '%s' in the authcache: %s",
m->name, name, strerror(errno));
} else {
pr_trace_msg(trace_channel, 5,
"stashed module 'mod_%s.c' for user '%s' in the authcache",
m->name, name);
}
}
}
uidcache_add(res->pw_uid, name);
/* Get the (possibly rewritten) home directory. */
res->pw_dir = pr_auth_get_home(p, res->pw_dir);
pr_log_debug(DEBUG10, "retrieved UID %lu for user '%s'",
(unsigned long) res->pw_uid, name);
return res;
}
CMD* make_stage(token_list** list_ref)
{
token_list* list = *list_ref;
if (!list) return make_error_cmd("could not form stage (no tokens)");
CMD* stage_tree = mallocCMD(); // Current type is NONE
int next_type = NONE; // Hold the type of the head token of list
bool redir_in = false; // Has there been a previous input redirection?
bool redir_out = false;
// Loop until hit a pipe or a separator; raise an error if multiple redirect
// or both a command and subcommand
while ((next_type = type(list)) != -1 &&
!ISSEP(next_type) && !ISPIPE(next_type) && next_type != PAR_RIGHT) {
bool error = false; // Signals whether the current action results in an
// error
if (next_type == SIMPLE && stage_tree->type != SUBCMD) {
int argc = stage_tree->argc + 1;
char** argv = stage_tree->argv;
argv = realloc(argv, (argc + 1) * sizeof(char*)); // +1 for trailing
// NULL required
// by freeCMD
argv[argc - 1] = strdup(text(list));
argv[argc] = NULL;
stage_tree->argc = argc;
stage_tree->argv = argv;
stage_tree->type = SIMPLE;
} else if ((next_type == RED_IN || next_type == RED_HERE)
&& !redir_in) {
error = make_redirect(stage_tree, &redir_in, next_type, &list);
} else if (ISREDOUT(next_type) && !redir_out) {
error = make_redirect(stage_tree, &redir_out, next_type, &list);
} else if (next_type == PAR_LEFT &&
stage_tree->type == NONE) { // Can't have two subcommands in a stage
advance(&list); // Advance past left parentheses
CMD* subcmd_tree = make_cmd(&list);
error = subcmd_tree->type == ERROR || type(list) != PAR_RIGHT;
stage_tree->type = SUBCMD;
stage_tree->left = subcmd_tree;
} else {
error = true;
}
if (error) {
freeCMD(stage_tree);
return make_error_cmd("Invalid stage");
}
advance(&list);
}
// Make sure we didn't double-redirect
if (ISPIPE(next_type) && redir_out) {
freeCMD(stage_tree);
return make_error_cmd("Double redirect - pipe and >");
}
// Make sure there was actually an argument
if (stage_tree->type == NONE) {
freeCMD(stage_tree);
return make_error_cmd("No arguments for simple command");
}
assert(stage_tree->type != NONE);
*list_ref = list;
return stage_tree;
}
int pr_auth_getgroups(pool *p, const char *name, array_header **group_ids,
array_header **group_names) {
cmd_rec *cmd = NULL;
modret_t *mr = NULL;
int res = -1;
/* Allocate memory for the array_headers of GIDs and group names. */
if (group_ids)
*group_ids = make_array(permanent_pool, 2, sizeof(gid_t));
if (group_names)
*group_names = make_array(permanent_pool, 2, sizeof(char *));
cmd = make_cmd(p, 3, name, group_ids ? *group_ids : NULL,
group_names ? *group_names : NULL);
mr = dispatch_auth(cmd, "getgroups", NULL);
if (MODRET_ISHANDLED(mr) && MODRET_HASDATA(mr)) {
res = *((int *) mr->data);
/* Note: the number of groups returned should, barring error,
* always be at least 1, as per getgroups(2) behavior. This one
* ID is present because it is the primary group membership set in
* struct passwd, from /etc/passwd. This will need to be documented
* for the benefit of auth_getgroup() implementors.
*/
if (group_ids) {
register unsigned int i;
char *strgids = "";
gid_t *gids = (*group_ids)->elts;
for (i = 0; i < (*group_ids)->nelts; i++) {
char buf[64];
snprintf(buf, sizeof(buf)-1, "%lu", (unsigned long) gids[i]);
buf[sizeof(buf)-1] = '\0';
strgids = pstrcat(p, strgids, i != 0 ? ", " : "", buf, NULL);
}
pr_log_debug(DEBUG10, "retrieved group %s: %s",
(*group_ids)->nelts == 1 ? "ID" : "IDs", strgids);
}
if (group_names) {
register unsigned int i;
char *strgroups = "";
char **groups = (*group_names)->elts;
for (i = 0; i < (*group_names)->nelts; i++)
strgroups = pstrcat(p, strgroups, i != 0 ? ", " : "", groups[i], NULL);
pr_log_debug(DEBUG10, "retrieved group %s: %s",
(*group_names)->nelts == 1 ? "name" : "names", strgroups);
}
}
if (cmd->tmp_pool) {
destroy_pool(cmd->tmp_pool);
cmd->tmp_pool = NULL;
}
return res;
}
int main(int argc, char **argv)
{
term_init();
set_default_opts();
if (getenv("NVC_GDB") != NULL)
register_gdb_signal_handlers();
else
register_trace_signal_handlers();
atexit(fbuf_cleanup);
static struct option long_options[] = {
{ "help", no_argument, 0, 'h' },
{ "version", no_argument, 0, 'v' },
{ "work", required_argument, 0, 'w' },
{ "dump", no_argument, 0, 'd' },
{ "codegen", no_argument, 0, 'c' },
{ "make", no_argument, 0, 'm' },
{ "std", required_argument, 0, 's' },
{ 0, 0, 0, 0 }
};
int c, index = 0;
const char *spec = "aehrvL:";
while ((c = getopt_long(argc, argv, spec, long_options, &index)) != -1) {
switch (c) {
case 0:
// Set a flag
break;
case 'h':
usage();
exit(EXIT_SUCCESS);
case 'v':
printf("%s\n%s\n", version_string, copy_string);
exit(EXIT_SUCCESS);
case 'w':
opt_set_str("work-name", optarg);
break;
case 'L':
lib_add_search_path(optarg);
break;
case 's':
set_standard(parse_standard(optarg));
break;
case 'a':
case 'e':
case 'd':
case 'r':
case 'c':
case 'm':
// Subcommand options are parsed later
argc -= (optind - 1);
argv += (optind - 1);
goto getopt_out;
case '?':
// getopt_long already printed an error message
exit(EXIT_FAILURE);
default:
abort();
}
}
getopt_out:
switch (c) {
case 'a':
return analyse(argc, argv);
case 'e':
return elaborate(argc, argv);
case 'r':
return run(argc, argv);
case 'd':
return dump_cmd(argc, argv);
case 'c':
return codegen(argc, argv);
case 'm':
return make_cmd(argc, argv);
default:
fprintf(stderr, "%s: missing command\n", PACKAGE);
return EXIT_FAILURE;
}
}