static int
pseudo_client_setup(void) {
char * pseudo_pidfile;
FILE *fp;
server_pid = 0;
/* avoid descriptor leak, I hope */
if (connect_fd >= 0) {
close(connect_fd);
connect_fd = -1;
}
pseudo_pidfile = pseudo_localstatedir_path(PSEUDO_PIDFILE);
fp = fopen(pseudo_pidfile, "r");
if (fp) {
if (fscanf(fp, "%d", &server_pid) != 1) {
pseudo_debug(1, "Opened server PID file, but didn't get a pid.\n");
}
fclose(fp);
}
if (server_pid) {
if (kill(server_pid, 0) == -1) {
pseudo_debug(1, "couldn't find server at pid %d: %s\n",
server_pid, strerror(errno));
server_pid = 0;
}
}
if (!server_pid) {
if (client_spawn_server()) {
return 1;
}
}
if (!client_connect() && !client_ping()) {
return 0;
}
pseudo_debug(2, "server seems to be gone, trying to restart\n");
if (client_spawn_server()) {
pseudo_debug(1, "failed to spawn server, giving up.\n");
return 1;
} else {
pseudo_debug_verbose();
pseudo_debug(2, "restarted, new pid %d\n", server_pid);
if (!client_connect() && !client_ping()) {
pseudo_debug_terse();
return 0;
}
pseudo_debug_terse();
}
pseudo_debug(1, "couldn't get a server, giving up.\n");
return 1;
}
/* You can either create a query or create a log entry. They use very
* similar syntax, but:
* - if you're making a query, you can use >, <, etc.
* - if you're logging, you can't.
* This is tracked by recording whether any non-exact relations
* have been requested ("query_only"), and refusing to set the -l
* flag if they have, and refusing to accept any such relation
* if the -l flag is already set.
*/
int
main(int argc, char **argv) {
pseudo_query_t *traits = 0, *current = 0, *new_trait = 0;
char *s;
log_history history;
int query_only = 0;
int o;
int bad_args = 0;
char *format = "%s %-12.12R %-4y %7o: [mode %04m, %2a] %p %T";
while ((o = getopt(argc, argv, "vla:c:d:DE:f:F:g:G:hi:I:m:M:o:O:p:P:r:R:s:S:t:T:u:Ux:y:")) != -1) {
switch (o) {
case 'P':
s = PSEUDO_ROOT_PATH(AT_FDCWD, optarg, AT_SYMLINK_NOFOLLOW);
if (!s)
pseudo_diag("Can't resolve prefix path '%s'\n", optarg);
pseudo_set_value("PSEUDO_PREFIX", s);
break;
case 'v':
pseudo_debug_verbose();
break;
case 'x':
pseudo_debug_set(optarg);
break;
case 'l':
opt_l = 1;
break;
case 'D':
opt_D = 1;
query_only = 1;
break;
case 'E':
timeformat = strdup(optarg);
break;
case 'F':
/* disallow specifying -F with -l */
format = strdup(optarg);
query_only = 1;
break;
case 'U':
opt_U = 1;
query_only = 1;
break;
case 'I': /* PSQF_ID */
query_only = 1;
/* FALLTHROUGH */
case 'a': /* PSQF_ACCESS */
case 'c': /* PSQF_CLIENT */
case 'd': /* PSQF_DEV */
case 'f': /* PSQF_FD */
case 'g': /* PSQF_GID */
case 'G': /* PSQF_TAG */
case 'i': /* PSQF_INODE */
case 'm': /* PSQF_PERM */
case 'M': /* PSQF_MODE */
case 'o': /* PSQF_OP */
case 'O': /* PSQF_ORDER */
case 'p': /* PSQF_PATH */
case 'r': /* PSQF_RESULT */
case 'R': /* PSQF_PROGRAM */
case 's': /* PSQF_STAMP */
case 'S': /* PSQF_SEVERITY */
case 't': /* PSQF_FTYPE */
case 'T': /* PSQF_TEXT */
case 'u': /* PSQF_UID */
case 'y': /* PSQF_TYPE */
new_trait = plog_trait(o, optarg);
if (!new_trait) {
bad_args = 1;
}
break;
case 'h':
usage(EXIT_SUCCESS);
break;
case '?': /* FALLTHROUGH */
default:
fprintf(stderr, "unknown option '%c'\n", optopt);
usage(EXIT_FAILURE);
break;
}
if (new_trait) {
if (current) {
current->next = new_trait;
current = current->next;
} else {
traits = new_trait;
current = new_trait;
}
new_trait = 0;
}
}
pseudo_debug_flags_finalize();
if (optind < argc) {
pseudo_diag("Error: Extra arguments not associated with any option.\n");
usage(EXIT_FAILURE);
}
if (query_only && opt_l) {
pseudo_diag("Error: -l cannot be used with query-only options or flags.\n");
bad_args = 1;
}
/* should be set only if we have already diagnosed the bad arguments. */
if (bad_args)
exit(EXIT_FAILURE);
if (!pseudo_get_prefix(argv[0])) {
pseudo_diag("Can't figure out prefix. Set PSEUDO_PREFIX or invoke with full path.\n");
exit(EXIT_FAILURE);
}
if (!pseudo_get_bindir()) {
pseudo_diag("Can't figure out bindir. Set PSEUDO_BINDIR.\n");
exit(EXIT_FAILURE);
}
if (!pseudo_get_libdir()) {
pseudo_diag("Can't figure out libdir. Set PSEUDO_LIBDIR.\n");
exit(EXIT_FAILURE);
}
if (!pseudo_get_localstatedir()) {
pseudo_diag("Can't figure out localstatedir. Set PSEUDO_LOCALSTATEDIR.\n");
exit(EXIT_FAILURE);
}
if (opt_l) {
pdb_log_traits(traits);
} else {
int fields;
fields = format_scan(format);
if (fields == -1) {
pseudo_diag("couldn't parse format string (%s).\n", format);
return EXIT_FAILURE;
}
if (opt_D) {
if (pdb_delete(traits, fields)) {
pseudo_diag("errors occurred trying to delete entries.\n");
}
} else {
history = pdb_history(traits, fields, opt_U);
if (history) {
log_entry *e;
while ((e = pdb_history_entry(history)) != NULL) {
display(e, format);
log_entry_free(e);
}
pdb_history_free(history);
} else {
pseudo_diag("could not retrieve history.\n");
return EXIT_FAILURE;
}
}
}
return 0;
}
