int
main(int argc, char **argv)
{
struct stat sbuf;
char *file, *flags = NULL;
int c, err = 0, pid = 0;
__pmSetProgname(argv[0]);
while ((c = getopt(argc, argv, "f:p:")) != EOF) {
switch (c) {
case 'f':
flags = optarg;
break;
case 'p':
pid = atoi(optarg);
break;
default:
err++;
}
}
if (err || argc != optind + 1)
usage();
file = argv[optind];
c = open(file, O_RDWR, 0644);
if (c < 0) {
fprintf(stderr, "Cannot open %s for writing: %s\n",
file, strerror(errno));
exit(1);
}
fstat(c, &sbuf);
addr = __pmMemoryMap(c, sbuf.st_size, 1);
close(c);
if (flags)
write_flags(flags);
if (pid)
write_pid(pid);
__pmMemoryUnmap(addr, sbuf.st_size);
exit(0);
}
/*
* open the help text files and return a handle on success
*/
int
pmdaOpenHelp(char *fname)
{
char pathname[MAXPATHLEN];
int sts, size;
help_idx_t hdr;
help_t *hp;
struct stat sbuf;
for (sts = 0; sts < numhelp; sts++) {
if (tab[sts].dir_fd == -1)
break;
}
if (sts == numhelp) {
sts = numhelp++;
tab = (help_t *)realloc(tab, numhelp * sizeof(tab[0]));
if (tab == NULL) {
__pmNoMem("pmdaOpenHelp", numhelp * sizeof(tab[0]), PM_RECOV_ERR);
numhelp = 0;
return -oserror();
}
}
hp = &tab[sts];
memset(hp, 0, sizeof(*hp));
hp->dir_fd = -1;
hp->pag_fd = -1;
snprintf(pathname, sizeof(pathname), "%s.dir", fname);
hp->dir_fd = open(pathname, O_RDONLY);
if (hp->dir_fd < 0) {
sts = -oserror();
goto failed;
}
if (read(hp->dir_fd, &hdr, sizeof(hdr)) != sizeof(hdr)) {
sts = -EINVAL;
goto failed;
}
if (hdr.pmid != 0x50635068 ||
(hdr.off_oneline & 0xffff0000) != 0x31320000) {
sts = -EINVAL;
goto failed;
}
hp->numidx = hdr.off_text;
size = (hp->numidx + 1) * sizeof(help_idx_t);
hp->index = (help_idx_t *)__pmMemoryMap(hp->dir_fd, size, 0);
if (hp->index == NULL) {
sts = -oserror();
goto failed;
}
snprintf(pathname, sizeof(pathname), "%s.pag", fname);
hp->pag_fd = open(pathname, O_RDONLY);
if (hp->pag_fd < 0) {
sts = -oserror();
goto failed;
}
if (fstat(hp->pag_fd, &sbuf) < 0) {
sts = -oserror();
goto failed;
}
hp->textlen = (int)sbuf.st_size;
hp->text = (char *)__pmMemoryMap(hp->pag_fd, hp->textlen, 0);
if (hp->text == NULL) {
sts = -oserror();
goto failed;
}
return numhelp - 1;
failed:
pmdaCloseHelp(numhelp-1);
return sts;
}