/*
- * Copyright (C) 1997-2008 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1997-2009 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
#include <sys/types.h>
#include <dirent.h>
#include <openssl/rc4.h>
+#include <osl.h>
#include "para.h"
#include "error.h"
#include "user_list.h"
#include "server_command_list.h"
#include "afs_command_list.h"
+#include "sched.h"
+#include "signal.h"
/** Commands including options must be shorter than this. */
#define MAX_COMMAND_LEN 32768
extern struct misc_meta_data *mmd;
extern struct sender senders[];
-static void dummy(int s)
+static void dummy(__a_unused int s)
{
- /*
- * At least on Solaris, SIGUSR1 is one-shot, i.e. the signal action is
- * restored to the default state once the signal handler has been
- * called.
- */
- if (s == SIGUSR1)
- signal(SIGUSR1, dummy);
}
static void mmd_dup(struct misc_meta_data *new_mmd)
}
/*
- * compute human readable string containing
- * vss status for given integer value
+ * Compute human readable string containing vss status for given integer value.
+ *
+ * We don't want to use vss_playing() and friends here because we take a
+ * snapshot of the mmd struct and use the copy for computing the state of the
+ * vss. If the real data were used, we would take the mmd lock for a rather
+ * long time or risk to get an inconsistent view.
*/
static char *vss_status_tohuman(unsigned int flags)
{
if (flags & VSS_PLAYING)
return para_strdup("playing");
- else if (flags & VSS_NEXT)
+ if (flags & VSS_NEXT)
return para_strdup("stopped");
- else
- return para_strdup("paused");
+ return para_strdup("paused");
}
/*
return msg;
}
-static char *get_status(struct misc_meta_data *nmmd)
+static char *get_status(struct misc_meta_data *nmmd, int parser_friendly)
{
- char *ret, mtime[30] = "";
+ char mtime[30] = "";
char *status, *flags; /* vss status info */
char *ut = uptime_str();
long offset = (nmmd->offset + 500) / 1000;
- struct timeval now;
+ struct timeval current_time;
struct tm mtime_tm;
+ struct para_buffer b = {.flags = parser_friendly? PBF_SIZE_PREFIX : 0};
/* report real status */
status = vss_status_tohuman(nmmd->vss_status_flags);
localtime_r(&nmmd->mtime, &mtime_tm);
strftime(mtime, 29, "%b %d %Y", &mtime_tm);
}
- gettimeofday(&now, NULL);
- ret = make_message(
- "%s: %zu\n" /* file size */
- "%s: %s\n" /* mtime */
- "%s: %s\n" /* status */
- "%s: %s\n" /* status flags */
- "%s: %li\n" /* offset */
- "%s: %s\n" /* afs mode */
- "%s: %lu.%lu\n" /* stream start */
- "%s: %lu.%lu\n" /* current server time */
- "%s", /* afs status info */
- status_item_list[SI_FILE_SIZE], nmmd->size / 1024,
- status_item_list[SI_MTIME], mtime,
- status_item_list[SI_STATUS], status,
- status_item_list[SI_STATUS_FLAGS], flags,
-
- status_item_list[SI_OFFSET], offset,
- status_item_list[SI_AFS_MODE], mmd->afs_mode_string,
-
- status_item_list[SI_STREAM_START],
- (long unsigned)nmmd->stream_start.tv_sec,
- (long unsigned)nmmd->stream_start.tv_usec,
- status_item_list[SI_CURRENT_TIME],
- (long unsigned)now.tv_sec,
- (long unsigned)now.tv_usec,
-
- nmmd->afd.verbose_ls_output
-
- );
+ gettimeofday(¤t_time, NULL);
+ WRITE_STATUS_ITEM(&b, SI_FILE_SIZE, "%zu\n", nmmd->size / 1024);
+ WRITE_STATUS_ITEM(&b, SI_MTIME, "%s\n", mtime);
+ WRITE_STATUS_ITEM(&b, SI_STATUS, "%s\n", status);
+ WRITE_STATUS_ITEM(&b, SI_STATUS_FLAGS, "%s\n", flags);
+ WRITE_STATUS_ITEM(&b, SI_OFFSET, "%li\n", offset);
+ WRITE_STATUS_ITEM(&b, SI_AFS_MODE, "%s\n", mmd->afs_mode_string);
+ WRITE_STATUS_ITEM(&b, SI_STREAM_START, "%lu.%lu\n",
+ (long unsigned)nmmd->stream_start.tv_sec,
+ (long unsigned)nmmd->stream_start.tv_usec);
+ WRITE_STATUS_ITEM(&b, SI_CURRENT_TIME, "%lu.%lu\n",
+ (long unsigned)current_time.tv_sec,
+ (long unsigned)current_time.tv_usec);
free(flags);
free(status);
free(ut);
- return ret;
+ return b.buf;
}
static int check_sender_args(int argc, char * const * argv, struct sender_command_data *scd)
case SENDER_ALLOW:
if (argc != 4 && argc != 5)
return -E_COMMAND_SYNTAX;
- if (!inet_pton(AF_INET, argv[3], &scd->addr))
+ if (!is_valid_ipv4_address(argv[3]))
return -E_COMMAND_SYNTAX;
scd->netmask = 32;
if (argc == 5) {
if (scd->netmask < 0 || scd->netmask > 32)
return -E_COMMAND_SYNTAX;
}
+ strncpy(scd->host, argv[3], sizeof(scd->host));
break;
case SENDER_ADD:
case SENDER_DELETE:
- if (argc != 4 && argc != 5)
- return -E_COMMAND_SYNTAX;
- if (!inet_pton(AF_INET, argv[3], &scd->addr))
+ if (argc != 4)
return -E_COMMAND_SYNTAX;
- scd->port = -1;
- if (argc == 5) {
- scd->port = atoi(argv[4]);
- if (scd->port < 0 || scd->port > 65535)
- return -E_COMMAND_SYNTAX;
- }
- break;
+ return parse_fec_url(argv[3], scd);
default:
return -E_COMMAND_SYNTAX;
}
usleep(100 * 1000);
continue;
}
- mmd->sender_cmd_data = scd;
+ memcpy(&mmd->sender_cmd_data, &scd, sizeof(scd));
mutex_unlock(mmd_mutex);
break;
}
}
ut = uptime_str();
ret = send_va_buffer(fd, "up: %s\nplayed: %u\n"
- "pid: %d\n"
+ "server_pid: %d\n"
+ "afs_pid: %d\n"
"connections (active/accepted/total): %u/%u/%u\n"
- "current loglevel: %i\n"
+ "current loglevel: %s\n"
"supported audio formats: %s\n"
"supported senders: %s\n"
"%s",
ut, mmd->num_played,
(int)getppid(),
+ (int)mmd->afs_pid,
mmd->active_connections,
mmd->num_commands,
mmd->num_connects,
);
}
+#define EMPTY_STATUS_ITEMS \
+ ITEM(PATH) \
+ ITEM(DIRECTORY) \
+ ITEM(BASENAME) \
+ ITEM(SCORE) \
+ ITEM(ATTRIBUTES_BITMAP) \
+ ITEM(ATTRIBUTES_TXT) \
+ ITEM(HASH) \
+ ITEM(IMAGE_ID) \
+ ITEM(IMAGE_NAME) \
+ ITEM(LYRICS_ID) \
+ ITEM(LYRICS_NAME) \
+ ITEM(BITRATE) \
+ ITEM(FORMAT) \
+ ITEM(FREQUENCY) \
+ ITEM(CHANNELS) \
+ ITEM(DURATION) \
+ ITEM(SECONDS_TOTAL) \
+ ITEM(NUM_PLAYED) \
+ ITEM(LAST_PLAYED) \
+ ITEM(TECHINFO) \
+ ITEM(ARTIST) \
+ ITEM(TITLE) \
+ ITEM(YEAR) \
+ ITEM(ALBUM) \
+ ITEM(COMMENT) \
+ ITEM(AMPLIFICATION)
+
+/**
+ * Write a list of audio-file related status items with empty values.
+ *
+ * This is used by vss when currently no audio file is open.
+ */
+static char *empty_status_items(int parser_friendly)
+{
+ if (parser_friendly)
+ return make_message(
+ #define ITEM(x) "0004 %02x:\n"
+ EMPTY_STATUS_ITEMS
+ #undef ITEM
+ #define ITEM(x) , SI_ ## x
+ EMPTY_STATUS_ITEMS
+ #undef ITEM
+ );
+ return make_message(
+ #define ITEM(x) "%s:\n"
+ EMPTY_STATUS_ITEMS
+ #undef ITEM
+ #define ITEM(x) ,status_item_list[SI_ ## x]
+ EMPTY_STATUS_ITEMS
+ #undef ITEM
+ );
+}
+#undef EMPTY_STATUS_ITEMS
+
/* stat */
int com_stat(int fd, int argc, char * const * argv)
{
- int ret, num = 0;/* status will be printed that many
- * times. num <= 0 means: print forever
- */
+ int i, ret;
struct misc_meta_data tmp, *nmmd = &tmp;
char *s;
+ int32_t num = 0;
+ int parser_friendly = 0;
- signal(SIGUSR1, dummy);
+ para_sigaction(SIGUSR1, dummy);
- if (argc > 1)
- num = atoi(argv[1]);
+ for (i = 1; i < argc; i++) {
+ const char *arg = argv[i];
+ if (arg[0] != '-')
+ break;
+ if (!strcmp(arg, "--")) {
+ i++;
+ break;
+ }
+ if (!strncmp(arg, "-n=", 3)) {
+ ret = para_atoi32(arg + 3, &num);
+ if (ret < 0)
+ return ret;
+ continue;
+ }
+ if (!strcmp(arg, "-p")) {
+ parser_friendly = 1;
+ continue;
+ }
+ }
+ if (i != argc)
+ return -E_COMMAND_SYNTAX;
for (;;) {
-
mmd_dup(nmmd);
- s = get_status(nmmd);
+ s = get_status(nmmd, parser_friendly);
ret = send_buffer(fd, s);
free(s);
if (ret < 0)
goto out;
+ if (nmmd->vss_status_flags & VSS_NEXT) {
+ static char *esi;
+ if (!esi)
+ esi = empty_status_items(parser_friendly);
+ ret = send_buffer(fd, esi);
+ if (ret < 0)
+ goto out;
+ } else
+ send_afs_status(fd, parser_friendly);
ret = 1;
if (num > 0 && !--num)
goto out;
}
+static void reset_signals(void)
+{
+ para_sigaction(SIGCHLD, SIG_IGN);
+ para_sigaction(SIGINT, SIG_DFL);
+ para_sigaction(SIGTERM, SIG_DFL);
+ para_sigaction(SIGHUP, SIG_DFL);
+}
+
/**
* Perform user authentication and execute a command.
*
char *p, *command = NULL;
size_t numbytes;
- signal(SIGCHLD, SIG_IGN);
- signal(SIGINT, SIG_DFL);
- signal(SIGTERM, SIG_DFL);
- signal(SIGHUP, SIG_DFL);
-
+ reset_signals();
/* we need a blocking fd here as recv() might return EAGAIN otherwise. */
ret = mark_fd_blocking(fd);
if (ret < 0)
/* valid command and sufficient perms */
alarm(0);
argc = split_args(command, &argv, "\n");
- mutex_lock(mmd_mutex);
- mmd->num_commands++;
- mutex_unlock(mmd_mutex);
PARA_NOTICE_LOG("calling com_%s() for %s@%s\n", cmd->name, u->name,
peername);
ret = cmd->handler(fd, argc, argv);
+ mutex_lock(mmd_mutex);
+ mmd->num_commands++;
+ mutex_unlock(mmd_mutex);
if (ret >= 0)
goto out;
err_out:
projects / paraslash.git / blobdiff