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/* statedebug.c - debugging tool for writing support programs
Copyright (C) 1999 Russell Kroll <rkroll@exploits.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define STANDALONE
#include "upsd.h"
#include "shared-tables.h"
const char *progname = NULL;
static time_t lastmtime = 0;
static const char *fname(int cmdnum)
{
int i;
for (i = 0; netvars[i].name != NULL; i++)
if (netvars[i].type == cmdnum)
return(netvars[i].name);
/* handle some special cases */
switch(cmdnum) {
case INFO_MEMBERS: return("MEMBERS");
case INFO_MTIME: return("MTIME");
case INFO_INSTCMD: return("INSTCMD");
case INFO_ENUM: return("ENUM");
case INFO_MSGID: return("MSGID");
case INFO_SHMID: return("SHMID");
case INFO_UNUSED: return("UNUSED");
}
return("UNKNOWN");
}
/* return a name for an instant command given its identifier (from shared.h) */
const char *instcmdname(int cmdnum)
{
int i;
for (i = 0; instcmds[i].name != NULL; i++)
if (instcmds[i].cmd == cmdnum)
return(instcmds[i].name);
return("*** Unknown INSTCMD");
}
void printinfo(int pos, itype *info)
{
if (pos == 0)
printf("pos| type | aux | value\n");
printf("%3i: %15s (%04x) [%04x] = ", pos,
fname(info->type), info->type,
info->auxdata);
switch(info->type) {
case INFO_INSTCMD:
printf("%s\n", instcmdname(info->auxdata));
break;
case INFO_ENUM:
printf("%s: %s\n",
fname(info->auxdata), info->value);
break;
default:
printf("%s\n", info->value);
}
}
#ifdef HAVE_SHMAT
void displayshm(int shmid)
{
itype *info;
int i, num;
struct shmid_ds shmbuf;
info = (itype *) shmat(shmid, 0, 0);
if (info == (itype *)(-1))
fatal("Can't attach to shared memory");
if (info[0].type != INFO_MEMBERS) {
shmdt(info);
fatalx("First entry in info isn't INFO_MEMBERS, giving up...");
}
if (shmctl(shmid, IPC_STAT, &shmbuf) != 0)
fatal("shmctl STAT");
if (shmbuf.shm_ctime != lastmtime) {
lastmtime = shmbuf.shm_ctime;
num = atoi(info[0].value);
printf("Shared memory ID: %d\n", shmid);
for (i = 0; i < num; i++) {
printinfo(i, &info[i]);
}
}
shmdt((char *)info);
}
#else
void displayshm(int shmid)
{
printf("This state file uses shared memory and you didn't compile that in!\n");
exit(1);
}
#endif /* HAVE_SHMAT */
static void display(const char *fn)
{
itype info;
int ifd, ret, i, count;
ifd = open(fn, O_RDONLY);
if (ifd < 0)
fatal("open %s", fn);
ret = read(ifd, &info, sizeof(itype));
if (ret < 1)
fatal("read");
if (info.type == INFO_SHMID) {
displayshm(atoi(info.value));
} else if (info.type != INFO_MEMBERS) {
fatalx("First entry in file isn't INFO_MEMBERS, giving up...");
} else {
struct stat st;
if (fstat(ifd, &st))
fatal("fstat");
if (st.st_mtime != lastmtime) {
lastmtime = st.st_mtime;
count = atoi(info.value);
printinfo(0, &info);
for (i = 1; i < count; i++) {
if ((ret = read(ifd, &info, sizeof(itype))) != sizeof(itype))
fatal("could not read correct size for %d members", count);
printinfo(i, &info);
}
}
}
close(ifd);
return;
}
static void help(void)
{
printf("Network UPS Tools statedebug %s\n\n", UPS_VERSION);
printf("usage: %s [-h]\n", progname);
printf(" %s [-c] [-w <num>] <state file>\n\n", progname);
printf("Debugging tool for UPS driver state files.\n\n");
printf(" -h show this help\n");
printf(" -c run continuously\n");
printf(" -w <num> delay <num> seconds in continuous mode (default 30s)\n");
exit(1);
}
int main (int argc, char **argv)
{
int continuous = 0;
char *file;
int c;
unsigned int delay = 30;
progname = argv[0];
while ((c=getopt(argc, argv, "cw:h")) != EOF) {
switch (c) {
case 'c':
continuous = 1;
break;
case 'w':
delay = atoi(optarg);
break;
case 'h':
help();
break;
default:
help();
break;
}
}
argc -= optind;
argv += optind;
if (argc != 1)
help();
file = argv[0];
do {
display(file);
if (continuous)
sleep(delay);
} while (continuous);
return 0;
}
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