Copied from Linux sysdeps directory.
This commit is contained in:
Martin Baulig
+156
-1
@@ -23,9 +23,19 @@
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#include <glibtop.h>
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#include <glibtop/error.h>
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#include <glibtop/xmalloc.h>
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#include <glibtop/ppp.h>
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static const unsigned long _glibtop_sysdeps_ppp = 0;
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#include <linux/isdn.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <glib.h>
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static const unsigned long _glibtop_sysdeps_ppp =
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(1 << GLIBTOP_PPP_STATE) + (1 << GLIBTOP_PPP_BYTES_IN) +
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(1 << GLIBTOP_PPP_BYTES_OUT);
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/* Init function. */
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@@ -35,10 +45,155 @@ glibtop_init_ppp_s (glibtop *server)
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server->sysdeps.ppp = _glibtop_sysdeps_ppp;
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}
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static int
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get_ISDN_stats (glibtop *server, int *in, int *out)
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{
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unsigned long *isdn_stats, *ptr;
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int fd, i;
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*in = *out = 0;
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isdn_stats = glibtop_calloc_r (server, ISDN_MAX_CHANNELS * 2,
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sizeof (unsigned long));
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fd = open ("/dev/isdninfo", O_RDONLY);
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if (fd < 0) {
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glibtop_free_r (server, isdn_stats);
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return FALSE;
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}
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if ((ioctl (fd, IIOCGETCPS, isdn_stats) < 0) && (errno != 0)) {
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glibtop_free_r (server, isdn_stats);
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close (fd);
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return FALSE;
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}
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for (i = 0, ptr = isdn_stats; i < ISDN_MAX_CHANNELS; i++) {
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*in += *ptr++; *out += *ptr++;
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}
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glibtop_free_r (server, isdn_stats);
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close (fd);
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return TRUE;
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}
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static int is_ISDN_on (glibtop *server, int *online)
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{
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FILE *f = 0;
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char buffer [BUFSIZ], *p;
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int i;
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/* Perhaps I should try to explain this code a little bit.
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*
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* ------------------------------------------------------------
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* This is from the manpage of isdninfo(4):
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*
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* DESCRIPTION
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* /dev/isdninfo is a character device with major number 45
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* and minor number 255. It delivers status information from
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* the Linux ISDN subsystem to user level.
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*
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* DATA FORMAT
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* When reading from this device, the current status of the
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* Linux ISDN subsystem is delivered in 6 lines of text. Each
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* line starts with a tag string followed by a colon and
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* whitespace. After that the status values are appended sep-
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* arated by whitespace.
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*
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* flags is the tag of line 5. In this line for every driver
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* slot, it's B-Channel status is shown. If no driver
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* is registered in a slot, a ? is shown. For every
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* established B-Channel of the driver, a bit is set
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* in the shown value. The driver's first channel is
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* mapped to bit 0, the second channel to bit 1 and so
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* on.
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* ------------------------------------------------------------
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*
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* So we open /dev/isdninfo, discard the first four lines of text
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* and then check whether we have something that is not `0' or `?'
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* in one of the flags fields.
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*
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* Sounds complicated, but I don't see any other way to check whether
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* we are connected. Also, this is the method some other ISDN tools
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* for Linux use.
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*
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* Martin
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*/
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f = fopen ("/dev/isdninfo", "r");
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if (!f) return FALSE;
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for (i = 0; i < 5; i++) {
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if (fgets (buffer, BUFSIZ, f) == NULL) {
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fclose (f);
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return FALSE;
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}
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}
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if (strncmp (buffer, "flags:", 6)) {
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fclose (f);
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return FALSE;
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}
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p = buffer+6;
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while (*p) {
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char *end = p;
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if (isspace (*p)) {
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p++;
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continue;
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}
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for (end = p; *end && !isspace (*end); end++)
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;
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if (*end == 0)
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break;
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else
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*end = 0;
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if (!strcmp (p, "?") || !strcmp (p, "0")) {
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p = end+1;
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continue;
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}
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fclose (f);
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*online = TRUE;
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return TRUE;
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}
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fclose (f);
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*online = FALSE;
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return TRUE;
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}
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/* Provides PPP/ISDN information. */
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void
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glibtop_get_ppp_s (glibtop *server, glibtop_ppp *buf, unsigned short device)
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{
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int in, out, online;
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glibtop_init_s (&server, GLIBTOP_SYSDEPS_PPP, 0);
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memset (buf, 0, sizeof (glibtop_ppp));
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if (is_ISDN_on (server, &online)) {
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buf->state = online ? GLIBTOP_PPP_STATE_ONLINE :
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GLIBTOP_PPP_STATE_HANGUP;
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buf->flags |= (1 << GLIBTOP_PPP_STATE);
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}
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if (get_ISDN_stats (server, &in, &out)) {
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buf->bytes_in = in;
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buf->bytes_out = out;
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buf->flags |= (1 << GLIBTOP_PPP_BYTES_IN) |
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(1 << GLIBTOP_PPP_BYTES_OUT);
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}
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}
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@@ -25,4 +25,36 @@
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#include <glibtop/signal.h>
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const glibtop_signame glibtop_sys_siglist [] =
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{ { 0, NULL, NULL } };
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{ { 1, "SIGHUP", NULL }, /* Hangup (POSIX). */
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{ 2, "SIGINT", NULL }, /* Interrupt (ANSI). */
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{ 3, "SIGQUIT", NULL }, /* Quit (POSIX). */
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{ 4, "SIGILL", NULL }, /* Illegal instruction (ANSI). */
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{ 5, "SIGTRAP", NULL }, /* Trace trap (POSIX). */
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{ 6, "SIGABRT", NULL }, /* Abort (ANSI). */
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{ 7, "SIGBUS", NULL }, /* BUS error (4.2 BSD). */
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{ 8, "SIGFPE", NULL }, /* Floating-point exception (ANSI). */
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{ 9, "SIGKILL", NULL }, /* Kill, unblockable (POSIX). */
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{ 10, "SIGUSR1", NULL }, /* User-defined signal 1 (POSIX). */
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{ 11, "SIGSEGV", NULL }, /* Segmentation violation (ANSI). */
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{ 12, "SIGUSR2", NULL }, /* User-defined signal 2 (POSIX). */
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{ 13, "SIGPIPE", NULL }, /* Broken pipe (POSIX). */
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{ 14, "SIGALRM", NULL }, /* Alarm clock (POSIX). */
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{ 15, "SIGTERM", NULL }, /* Termination (ANSI). */
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{ 16, "SIGSTKFLT", NULL }, /* ??? */
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{ 17, "SIGCHLD", NULL }, /* Child status has changed (POSIX). */
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{ 18, "SIGCONT", NULL }, /* Continue (POSIX). */
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{ 19, "SIGSTOP", NULL }, /* Stop, unblockable (POSIX). */
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{ 20, "SIGTSTP", NULL }, /* Keyboard stop (POSIX). */
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{ 21, "SIGTTIN", NULL }, /* Background read from tty (POSIX). */
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{ 22, "SIGTTOU", NULL }, /* Background write to tty (POSIX). */
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{ 23, "SIGURG", NULL }, /* Urgent condition on socket (4.2 BSD). */
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{ 24, "SIGXCPU", NULL }, /* CPU limit exceeded (4.2 BSD). */
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{ 25, "SIGXFSZ", NULL }, /* File size limit exceeded (4.2 BSD). */
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{ 26, "SIGVTALRM", NULL }, /* Virtual alarm clock (4.2 BSD). */
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{ 27, "SIGPROF", NULL }, /* Profiling alarm clock (4.2 BSD). */
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{ 28, "SIGWINCH", NULL }, /* Window size change (4.3 BSD, Sun). */
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{ 29, "SIGIO", NULL }, /* I/O now possible (4.2 BSD). */
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{ 30, "SIGPWR", NULL }, /* Power failure restart (System V). */
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{ 31, "SIGUNUSED", NULL },
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{ 0, NULL, NULL },
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};
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