int
rmdir(const char* path)
{
register int n;
struct stat st;
char* av[3];
static char* cmd[] = { "/bin/rmdir", "/usr/5bin/rmdir", 0 };
if (stat(path, &st) < 0) return(-1);
if (!S_ISDIR(st.st_mode))
{
errno = ENOTDIR;
return(-1);
}
av[0] = "rmdir";
av[1] = path;
av[2] = 0;
for (n = 0; n < elementsof(cmd); n++)
if (procclose(procopen(cmd[n], av, NiL, NiL, 0)) != -1)
break;
n = errno;
if (access(path, F_OK) < 0)
{
errno = n;
return(0);
}
errno = EPERM;
return(-1);
}
int
mkdir(const char* path, mode_t mode)
{
register int n;
char* av[3];
static char* cmd[] = { "/bin/mkdir", "/usr/5bin/mkdir", 0 };
n = errno;
if (!access(path, F_OK))
{
errno = EEXIST;
return(-1);
}
if (errno != ENOENT) return(-1);
errno = n;
av[0] = "mkdir";
av[1] = path;
av[2] = 0;
for (n = 0; n < elementsof(cmd); n++)
if (procclose(procopen(cmd[n], av, NiL, NiL, 0)) != -1)
break;
return(chmod(path, mode));
}
static void
finish(int status)
{
if (remote)
{
kill(remote->pid, SIGKILL);
procclose(remote);
}
exit(status);
}
int
procrun(const char* path, char** argv, int flags)
{
#if __OBSOLETE__ < 20090101
flags &= argv ? PROC_ARGMOD : PROC_CHECK;
#endif
if (flags & PROC_CHECK)
{
char buf[PATH_MAX];
return pathpath(path, NiL, PATH_REGULAR|PATH_EXECUTE, buf, sizeof(buf)) ? 0 : -1;
}
return procclose(procopen(path, argv, NiL, NiL, flags|PROC_FOREGROUND|PROC_GID|PROC_UID));
}
int
main(int argc, char** argv)
{
register int n;
register int i;
register long v;
char* s;
char* e;
char* data;
int uf;
int wf;
int idlecmd;
int usercount;
unsigned long t;
unsigned long toss;
unsigned long usertime;
unsigned long now;
unsigned long then;
Proc_t* proc;
CSSTAT ss;
struct stat st;
char cmd[PATH_MAX];
char buf[PATH_MAX];
char tmp[PATH_MAX / 4];
char* av[4];
char* iv[3];
#if NAMELIST
DIR* root;
struct dirent* entry;
int kf;
#endif
NoP(argc);
error_info.id = CS_STAT_DAEMON;
if (!pathpath(error_info.id, argv[0], PATH_ABSOLUTE|PATH_REGULAR|PATH_EXECUTE, cmd, sizeof(cmd)))
error(ERROR_SYSTEM|3, "cannot locate daemon executable");
if (!pathpath(CS_STAT_DIR, argv[0], PATH_EXECUTE, buf, sizeof(buf)))
error(3, "%s: cannot locate data directory", CS_STAT_DIR);
if (stat(buf, &st))
error(ERROR_SYSTEM|3, "%s: stat error", buf);
if (st.st_uid != geteuid())
error(3, "%s: effective uid mismatch", buf);
if (chdir(buf))
error(ERROR_SYSTEM|3, "%s: chdir error", buf);
data = csname(0);
if (argv[1] && strcmp(argv[1], data))
{
/*
* start remote status daemon
*/
data = argv[1];
if (!csaddr(data))
error(3, "%s: unknown host", data);
if (!stat(data, &st) && (long)(CSTIME() - (unsigned long)st.st_ctime) < CS_STAT_DOWN)
exit(0);
sfsprintf(buf, sizeof(buf), "./%s", data);
csstat(buf, &ss);
if (s = csattr(CS_HOST_LOCAL, "type"))
{
strcpy(tmp, s);
if (s = csattr(data, "type"))
pathrepl(cmd, sizeof(cmd), tmp, s);
}
/*
* loop until remote status daemon starts
* check for competing startup daemon
*/
if (csdaemon(0))
exit(1);
umask(S_IRWXU|S_IRWXG|S_IRWXO);
av[0] = CS_REMOTE_SHELL;
av[1] = data;
av[2] = cmd;
av[3] = 0;
for (;;)
{
update(data, 0, 0, &ss);
if (!(remote = procopen(av[0], av, NiL, NiL, PROC_UID|PROC_GID)))
break;
while (!kill(remote->pid, 0))
update(data, 0, CS_STAT_FREQ + (CS_STAT_DOWN - CS_STAT_FREQ) / 2, &ss);
procclose(remote);
remote = 0;
if (ss.up > 0)
ss.up = -ss.up;
}
for (;;) update(data, 0, CS_STAT_FREQ + (CS_STAT_DOWN - CS_STAT_FREQ) / 2, &ss);
}
remove(data);
if ((n = open(data, O_WRONLY|O_CREAT|O_TRUNC|O_BINARY, 0)) < 0)
error(ERROR_SYSTEM|3, "%s: cannot update", data);
for (i = 0; i < elementsof(usrfiles); i++)
if ((uf = open(usrfile = usrfiles[i], O_RDONLY)) >= 0) break;
if (uf < 0)
error(ERROR_SYSTEM|3, "%s: cannot read", usrfiles[0]);
/*
* final initialization
*/
if (csdaemon((1<<2)|(1<<n)|(1<<uf)))
error(ERROR_SYSTEM|3, "cannot dive into background");
umask(S_IRWXU|S_IRWXG|S_IRWXO);
close(2);
dup(n);
close(n);
error_info.id = data;
av[0] = "uptime";
av[1] = 0;
toss = getpid();
for (s = data; *s; s++)
CSTOSS(toss, *s);
usertime = 0;
#if NAMELIST
for (n = 0; n < elementsof(symbols); n++)
names[n].n_name = symbols[n].name;
if ((kf = open(memfile, O_RDONLY)) >= 0)
{
if (chdir("/"))
error(ERROR_SYSTEM|3, "/: chdir error");
s = 0;
for (i = 0; i < elementsof(sysfiles); i++)
if (!access(sysfiles[i], F_OK))
{
s = sysfiles[i];
break;
}
if (!s)
{
if (!(root = opendir(".")))
error(ERROR_SYSTEM|3, "/: cannot read");
while (entry = readdir(root))
{
if ((i = strlen(entry->d_name) - 2) > 0 && entry->d_name[i] == 'i' && entry->d_name[i + 1] == 'x' && !stat(entry->d_name, &st) && (st.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH)))
{
s = entry->d_name;
break;
}
}
closedir(root);
}
nlist(s, names);
for (n = 0; n < elementsof(symbols); n++)
if (!names[n].n_type)
{
error(1, "%s: %s not in nlist", s, names[n].n_name);
close(kf);
kf = -1;
}
if (chdir(buf))
error(ERROR_SYSTEM|3, "%s: chdir error", buf);
}
if (kf < 0)
#endif
{
sfsprintf(buf, sizeof(buf), "%s/%s%s%s", WHODIR, WHOPRE, data, WHOSUF);
if ((wf = open(buf, O_RDONLY)) >= 0)
{
if (read(wf, &who, sizeof(who)) != sizeof(who) || who.wd_vers != WHOVERS || who.wd_type != WHOTYPE)
{
error(1, "%s: rwhod protocol mismatch", buf);
close(wf);
wf = -1;
}
else whofile = strdup(buf);
}
}
strcpy(cmd + strlen(cmd), ".idle");
if (eaccess(cmd, X_OK)) idlecmd = 0;
else
{
idlecmd = 1;
iv[0] = cmd;
iv[1] = data;
iv[2] = 0;
}
/*
* the daemon loop
*/
ss.idle = 4 * 60 * 60;
now = CSTIME();
for (;;)
{
then = now;
now = CSTIME();
/*
* update logged in user stats
*/
if (fstat(uf, &st))
error(ERROR_SYSTEM|3, "%s: stat error", usrfile);
if (usertime != (unsigned long)st.st_mtime)
{
usertime = st.st_mtime;
if (lseek(uf, 0L, 0))
error(ERROR_SYSTEM|3, "%s: seek error", usrfile);
if ((n = read(uf, usrs, sizeof(usrs))) < 0)
error(ERROR_SYSTEM|3, "%s: read error", usrfile);
usercount = n / sizeof(struct utmp);
}
/*
* count the interesting users
* find the min user idle time
*/
if (idlecmd)
{
/*
* check idle command
*/
if (!(proc = procopen(iv[0], iv, NiL, NiL, PROC_READ|PROC_UID|PROC_GID)))
idlecmd = 0;
else
{
idlecmd = 1;
n = read(proc->rfd, buf, sizeof(buf));
if (procclose(proc) || n < 0)
idlecmd = 0;
else
{
if (n > 0)
n--;
buf[n] = 0;
if (isdigit(buf[0]))
ss.idle = strtol(buf, NiL, 10);
else if (streq(buf, "busy"))
ss.idle = 0;
else if (streq(buf, "free"))
ss.idle = ~0;
else if (streq(buf, "idle"))
{
n = since(then);
if ((ss.idle + n) < ss.idle) ss.idle = ~0;
else ss.idle += n;
}
else idlecmd = -1;
}
}
}
if (idlecmd <= 0)
ss.idle = ~0;
ss.users = 0;
for (i = 0; i < usercount; i++)
if (usrs[i].ut_name[0] && usrs[i].ut_line[0])
{
sfsprintf(buf, sizeof(buf), "/dev/%s", usrs[i].ut_line);
if (stat(buf, &st)) usrs[i].ut_name[0] = 0;
else
{
v = since(st.st_atime);
if (v < CS_STAT_IGNORE)
ss.users++;
if (idlecmd <= 0 && v < ss.idle)
ss.idle = v;
}
}
if (idlecmd <= 0 || !ss.users)
{
/*
* check devices for min idle time
*/
for (i = 0; i < elementsof(devfiles); i++)
if (devfiles[i])
{
if (stat(devfiles[i], &st)) devfiles[i] = 0;
else
{
v = since(st.st_atime);
if (!ss.users && v < CS_STAT_IGNORE)
ss.users++;
if (idlecmd <= 0 && v < ss.idle)
ss.idle = v;
}
}
}
/*
* get the hard stuff
*/
#if NAMELIST
if (kf >= 0)
{
/*
* update memfile symbol values
*/
for (n = 0; n < elementsof(symbols); n++)
if (symbols[n].once >= 0)
{
if (lseek(kf, (long)names[n].n_value, 0) != (long)names[n].n_value)
error(ERROR_SYSTEM|3, "%s: %s seek error", memfile, names[n].n_name);
if (read(kf, symbols[n].addr, symbols[n].size) != symbols[n].size)
error(ERROR_SYSTEM|3, "%s: %s read error", memfile, names[n].n_name);
if (symbols[n].once) symbols[n].once = -1;
}
#ifdef CP_TIME
for (i = 0; i < CPUSTATES; i++)
cp_time[i] = 0;
for (n = 0; n <= maxcpu; n++)
if (CPUFOUND(n))
for (i = 0; i < CPUSTATES; i++)
cp_time[i] += CP_TIME(n)[i];
#endif
ss.load = (avenrun * 100) / FSCALE;
}
else
#endif
if (wf >= 0)
{
if (lseek(wf, 0L, 0))
error(ERROR_SYSTEM|3, "%s: seek error", whofile);
read(wf, &who, sizeof(who));
ss.load = who.wd_loadav[0];
boottime = who.wd_boottime;
for (i = 0; i < elementsof(cp_time); i++)
cp_time[i] = 100;
}
else if (!(proc = procopen(av[0], av, NiL, NiL, PROC_READ|PROC_UID|PROC_GID)))
error(ERROR_SYSTEM|3, "%s: exec error", av[0]);
else
{
/*
* defer to process with memfile access
*/
n = read(proc->rfd, buf, sizeof(buf) - 1);
if (procclose(proc) || n <= 0)
error(3, "%s: invalid", av[0]);
buf[n] = 0;
if (!(s = strrchr(buf, ':')))
error(3, "%s: invalid output", av[0]);
ss.load = strton(s + 1, NiL, NiL, 100);
n = 0;
if ((s = strchr(buf, 'u')) && *++s == 'p')
{
n = strtol(s + 1, &e, 10) * 60 * 60;
s = e;
while (isspace(*s)) s++;
if (*s == 'd')
{
n *= 24;
while (*s && !isdigit(*s)) s++;
n += strtol(s, &e, 10) * 60 * 60;
s = e;
}
if (*s == ':') n += strtol(s + 1, NiL, 10) * 60;
}
boottime = since(n);
for (i = 0; i < elementsof(cp_time); i++)
cp_time[i] = 0;
}
/*
* finalize the new stat info
*/
t = 0;
for (i = 0; i < elementsof(cp_time); i++)
{
if ((cp_diff[i] = cp_time[i] - cp_prev[i]) < 0) cp_diff[i] = -cp_diff[i];
t += cp_diff[i];
cp_prev[i] = cp_time[i];
}
if (!t) t = 1;
ss.pctsys = (cp_diff[CP_SYS] * 100) / t;
ss.pctusr = ((cp_diff[CP_USER] + cp_diff[CP_NICE]) * 100) / t;
ss.up = since(boottime);
update(data, now, (4 * CS_STAT_FREQ + 2 * (CSTOSS(toss, 0) % (CS_STAT_FREQ + 1))) / 5, &ss);
}
}
void
filein(register Archive_t* ap, register File_t* f)
{
register off_t c;
register int n;
register char* s;
int dfd;
int wfd;
long checksum;
Filter_t* fp;
Proc_t* pp;
Tv_t t1;
Tv_t t2;
struct stat st;
if (f->skip)
goto skip;
else if (state.list)
{
if (fp = filter(ap, f))
{
for (n = 0; s = fp->argv[n]; n++)
{
while (*s)
if (*s++ == '%' && *s == '(')
break;
if (*s)
{
s = fp->argv[n];
listprintf(state.tmp.str, ap, f, s);
if (!(fp->argv[n] = sfstruse(state.tmp.str)))
nospace();
break;
}
}
pp = procopen(*fp->argv, fp->argv, NiL, NiL, PROC_WRITE);
if (s)
fp->argv[n] = s;
if (!pp)
{
error(2, "%s: %s: cannot execute filter %s", ap->name, f->path, *fp->argv);
goto skip;
}
if (!ap->format->getdata || !(*ap->format->getdata)(&state, ap, f, pp->wfd))
{
checksum = 0;
for (c = f->st->st_size; c > 0; c -= n)
{
n = (c > state.buffersize) ? state.buffersize : c;
if (!(s = bget(ap, n, NiL)))
{
error(ERROR_SYSTEM|2, "%s: read error", f->name);
break;
}
if (write(pp->wfd, s, n) != n)
{
error(ERROR_SYSTEM|2, "%s: write error", f->name);
break;
}
if (ap->format->checksum)
checksum = (*ap->format->checksum)(&state, ap, f, s, n, checksum);
}
}
if (ap->format->checksum && checksum != f->checksum)
error(1, "%s: %s checksum error (0x%08x != 0x%08x)", f->name, ap->format->name, checksum, f->checksum);
/*
* explicitly ignore exit status
*/
procclose(pp);
return;
}
listentry(f);
goto skip;
}
else switch (f->delta.op)
{
case DELTA_create:
if (f->delta.base)
error(3, "%s: base archive mismatch [%s#%d]", f->name, __FILE__, __LINE__);
if (ap->delta->format->flags & PSEUDO)
goto regular;
if ((wfd = openout(ap, f)) < 0)
goto skip;
else
paxdelta(NiL, ap, f, DELTA_TAR|DELTA_FD|DELTA_FREE|DELTA_OUTPUT|DELTA_COUNT, wfd, DELTA_DEL|DELTA_BIO|DELTA_SIZE, ap, f->st->st_size, 0);
break;
case DELTA_update:
if (!f->delta.base || (unsigned long)f->delta.base->mtime.tv_sec >= (unsigned long)f->st->st_mtime)
error(3, "%s: base archive mismatch [%s#%d]", f->name, __FILE__, __LINE__);
c = f->st->st_size;
if ((wfd = openout(ap, f)) < 0)
goto skip;
if (state.ordered)
{
if (!f->delta.base->uncompressed)
paxdelta(NiL, ap, f, DELTA_SRC|DELTA_BIO|DELTA_SIZE, ap->delta->base, f->delta.base->size, DELTA_TAR|DELTA_FD|DELTA_FREE|DELTA_OUTPUT|DELTA_COUNT, wfd, DELTA_DEL|DELTA_BIO|DELTA_SIZE, ap, c, 0);
else if (!paxdelta(NiL, ap, f, DELTA_DEL|DELTA_BIO|DELTA_SIZE, ap->delta->base, f->delta.base->size, DELTA_TAR|DELTA_TEMP|DELTA_OUTPUT, &dfd, 0))
paxdelta(NiL, ap, f, DELTA_SRC|DELTA_FD|DELTA_SIZE|DELTA_FREE, dfd, f->delta.base->uncompressed, DELTA_TAR|DELTA_FD|DELTA_FREE|DELTA_OUTPUT|DELTA_COUNT, wfd, DELTA_DEL|DELTA_BIO|DELTA_SIZE, ap, c, 0);
}
else if (!f->delta.base->uncompressed)
paxdelta(NiL, ap, f, DELTA_SRC|DELTA_FD|DELTA_OFFSET|DELTA_SIZE, ap->delta->base->io->fd, f->delta.base->offset, f->delta.base->size, DELTA_TAR|DELTA_FD|DELTA_FREE|DELTA_OUTPUT|DELTA_COUNT, wfd, DELTA_DEL|DELTA_BIO|DELTA_SIZE, ap, c, 0);
else if (!paxdelta(NiL, ap, f, DELTA_DEL|DELTA_FD|DELTA_OFFSET|DELTA_SIZE, ap->delta->base->io->fd, f->delta.base->offset, f->delta.base->size, DELTA_TAR|DELTA_TEMP|DELTA_OUTPUT, &dfd, 0))
paxdelta(NiL, ap, f, DELTA_SRC|DELTA_FD|DELTA_SIZE|DELTA_FREE, dfd, f->delta.base->uncompressed, DELTA_TAR|DELTA_FD|DELTA_FREE|DELTA_OUTPUT|DELTA_COUNT, wfd, DELTA_DEL|DELTA_BIO|DELTA_SIZE, ap, c, 0);
break;
case DELTA_verify:
if (!f->delta.base || f->delta.base->mtime.tv_sec != f->st->st_mtime)
error(3, "%s: base archive mismatch [%s#%d]", f->name, __FILE__, __LINE__);
if ((*state.statf)(f->name, &st))
error(2, "%s: not copied from base archive", f->name);
else if (st.st_size != f->delta.base->size || state.modtime && tvcmp(tvmtime(&t1, &st), tvmtime(&t2, f->st)))
error(1, "%s: changed from base archive", f->name);
break;
case DELTA_delete:
if (!f->delta.base)
error(3, "%s: base archive mismatch [%s#%d]", f->name, __FILE__, __LINE__);
/*FALLTHROUGH*/
default:
regular:
wfd = openout(ap, f);
if (wfd >= 0)
{
holeinit(wfd);
if (!ap->format->getdata || !(*ap->format->getdata)(&state, ap, f, wfd))
{
checksum = 0;
for (c = f->st->st_size; c > 0; c -= n)
{
n = (c > state.buffersize) ? state.buffersize : c;
if (!(s = bget(ap, n, NiL)))
{
error(ERROR_SYSTEM|2, "%s: read error", f->name);
break;
}
if (holewrite(wfd, s, n) != n)
{
error(ERROR_SYSTEM|2, "%s: write error", f->name);
break;
}
if (ap->format->checksum)
checksum = (*ap->format->checksum)(&state, ap, f, s, n, checksum);
}
}
holedone(wfd);
closeout(ap, f, wfd);
setfile(ap, f);
if (ap->format->checksum && checksum != f->checksum)
error(1, "%s: %s checksum error (0x%08x != 0x%08x)", f->name, ap->format->name, checksum, f->checksum);
}
else if (ap->format->getdata)
(*ap->format->getdata)(&state, ap, f, wfd);
else
{
if (wfd < -1)
listentry(f);
goto skip;
}
break;
}
listentry(f);
return;
skip:
fileskip(ap, f);
}
static int
agent(register Cs_t* state, const char* host, const char* user, const char* path)
{
register int n;
register int m;
register char* s;
Proc_t* proc;
int fd = -1;
char* av[REMOTE_ARGC];
char fv[REMOTE_FLAGC];
char buf[PATH_MAX / 4];
char num[64];
char tmp[64];
remote(state, host, user, path, 1, av, fv);
if (!(proc = procopen(av[0], av, NiL, NiL, PROC_READ|PROC_WRITE|PROC_PRIVELEGED)))
goto sorry;
if ((m = csread(state, proc->rfd, buf, sizeof(buf), CS_LINE)) <= 1)
goto sorry;
buf[--m] = 0;
if (buf[--m] == 'A')
buf[--m] = 0;
else
m = 0;
if ((fd = reopen(state, buf)) < 0)
goto sorry;
if (m)
{
if ((m = csread(state, proc->rfd, buf, sizeof(buf), CS_LINE)) <= 1)
goto sorry;
if (cswrite(state, fd, buf, m) != m)
goto sorry;
if ((n = csread(state, fd, num, sizeof(num), CS_LINE)) <= 0)
goto sorry;
if (*num != '\n')
{
buf[m - 1] = 0;
num[n - 1] = 0;
n = sfsprintf(tmp, sizeof(tmp), "%s %s\n", num, (s = strchr(buf, ' ')) ? (s + 1) : buf);
if (cswrite(state, proc->wfd, tmp, n) != n)
goto sorry;
if ((m = csread(state, proc->rfd, buf, sizeof(buf), CS_LINE)) <= 0)
goto sorry;
if (cswrite(state, fd, buf, m) != m)
goto sorry;
if (csread(state, fd, num, 1, CS_LINE) != 1)
goto sorry;
if (cswrite(state, proc->wfd, num, 1) != 1)
goto sorry;
}
}
procclose(proc);
return fd;
sorry:
if (fd >= 0)
close(fd);
if (proc)
procclose(proc);
errno = EACCES;
return -1;
}
static int
initiate(register Cs_t* state, char* user, char* path, char* service, char* name)
{
register char* s;
char* on;
char* local;
Sfio_t* sp;
Sfio_t* np;
int n;
char* av[REMOTE_ARGC];
char buf[PATH_MAX / 4];
local = csname(state, 0);
s = service + strlen(service);
*s++ = '/';
if (!(state->flags & CS_ADDR_SHARE))
{
sfsprintf(buf, sizeof(buf), "%s\n", state->host);
if (!(sp = tokline(buf, SF_STRING, NiL)))
return -1;
}
else if (state->flags & CS_ADDR_LOCAL)
{
sfsprintf(buf, sizeof(buf), "%s\n", CS_HOST_LOCAL);
if (!(sp = tokline(buf, SF_STRING, NiL)))
return -1;
}
else
{
strcpy(s, CS_SVC_HOSTS);
if (!(sp = tokline(service, SF_READ, NiL)))
{
if (streq(state->host, CS_HOST_SHARE))
sfsprintf(buf, sizeof(buf), "%s\n%s\n", CS_HOST_SHARE, CS_HOST_LOCAL);
else
sfsprintf(buf, sizeof(buf), "%s\n%s\n%s\n", state->host, CS_HOST_SHARE, CS_HOST_LOCAL);
if (!(sp = tokline(buf, SF_STRING, NiL)))
return -1;
}
}
sfsprintf(s, PATH_MAX - (s - service) - 1, "%s%s", name, CS_SVC_SUFFIX);
while (s = sfgetr(sp, '\n', 1))
if (tokscan(s, NiL, " %s ", &on) == 1)
{
if (streq(on, CS_HOST_LOCAL) || streq(on, local))
{
sfclose(sp);
av[0] = service;
av[1] = path;
av[2] = 0;
return procclose(procopen(av[0], av, NiL, NiL, PROC_PRIVELEGED|PROC_ZOMBIE)) < 0 ? -1 : 0;
}
else if (!streq(on, CS_HOST_SHARE))
{
Proc_t* proc;
time_t otime;
struct stat st;
char fv[REMOTE_FLAGC];
long ov[3];
remote(state, on, user, path, 0, av, fv);
otime = lstat(state->mount, &st) ? 0 : st.st_ctime;
n = open("/dev/null", O_RDWR);
ov[0] = PROC_FD_DUP(n, 0, 0);
ov[1] = PROC_FD_DUP(n, 1, PROC_FD_PARENT|PROC_FD_CHILD);
ov[2] = 0;
if (proc = procopen(av[0], av, NiL, ov, PROC_PRIVELEGED|PROC_ZOMBIE))
{
n = 1;
for (;;)
{
if (!lstat(state->mount, &st) && st.st_ctime != otime)
{
if (!procclose(proc))
{
sfclose(sp);
return 0;
}
break;
}
/*
* sleep() and MNT_TMP
* hack around remote
* fs cache delays
*/
if (n >= CS_REMOTE_DELAY)
{
procclose(proc);
break;
}
if (n == 1)
{
*state->control = CS_MNT_TMP;
if (remove(state->mount))
{
close(open(state->mount, O_WRONLY|O_CREAT|O_TRUNC, 0));
remove(state->mount);
}
*state->control = CS_MNT_STREAM;
}
sleep(n);
n <<= 1;
}
}
}
else if (!sfstacked(sp) && (np = csinfo(state, on, NiL)))
sfstack(sp, np);
}
sfclose(sp);
return -1;
}
char*
pathprobe_20100601(const char* lang, const char* tool, const char* aproc, int op, char* path, size_t pathsize, char* attr, size_t attrsize)
{
char* proc = (char*)aproc;
register char* p;
register char* k;
register char* x;
register char** ap;
int n;
int v;
int force;
ssize_t r;
char* e;
char* np;
char* nx;
char* probe;
const char* dirs;
const char* dir;
Proc_t* pp;
Sfio_t* sp;
char buf[PATH_MAX];
char cmd[PATH_MAX];
char exe[PATH_MAX];
char lib[PATH_MAX];
char ver[PATH_MAX];
char key[16];
char* arg[8];
long ops[2];
unsigned long ptime;
struct stat st;
struct stat ps;
if (*proc != '/')
{
if (p = strchr(proc, ' '))
{
strncopy(buf, proc, p - proc + 1);
proc = buf;
}
if (!(proc = pathpath(proc, NiL, PATH_ABSOLUTE|PATH_REGULAR|PATH_EXECUTE, cmd, sizeof(cmd))))
proc = (char*)aproc;
else if (p)
{
n = strlen(proc);
strncopy(proc + n, p, PATH_MAX - n - 1);
}
}
if (!path)
{
path = buf;
pathsize = sizeof(buf);
}
probe = PROBE;
x = lib + sizeof(lib) - 1;
k = lib + sfsprintf(lib, x - lib, "lib/%s/", probe);
p = k + sfsprintf(k, x - k, "%s/%s/", lang, tool);
pathkey(lang, tool, proc, key, sizeof(key), attr, attrsize);
if (op >= -2)
{
strncopy(p, key, x - p);
if (pathpath(lib, "", PATH_ABSOLUTE, path, pathsize) && !stat(path, &st) && (st.st_mode & S_IWUSR))
return path == buf ? strdup(path) : path;
}
e = strncopy(p, probe, x - p);
if (!pathpath(lib, "", PATH_ABSOLUTE|PATH_EXECUTE, path, pathsize) || stat(path, &ps))
return 0;
for (;;)
{
ptime = ps.st_mtime;
n = strlen(path);
if (n < (PATH_MAX - 5))
{
strcpy(path + n, ".ini");
if (!stat(path, &st) && st.st_size && ptime < (unsigned long)st.st_mtime)
ptime = st.st_mtime;
path[n] = 0;
}
np = path + n - (e - k);
nx = path + PATH_MAX - 1;
strncopy(np, probe, nx - np);
if (!stat(path, &st))
break;
/*
* yes lib/probe/<lang>/<proc>/probe
* no lib/probe/probe
*
* do a manual pathaccess() to find a dir with both
*/
sfsprintf(exe, sizeof(exe), "lib/%s/%s", probe, probe);
dirs = pathbin();
for (;;)
{
if (!(dir = dirs))
return 0;
dirs = pathcat(dir, ':', "..", exe, path, pathsize);
pathcanon(path, pathsize, 0);
if (*path == '/' && pathexists(path, PATH_REGULAR|PATH_EXECUTE))
{
pathcat(dir, ':', "..", lib, path, pathsize);
pathcanon(path, pathsize, 0);
if (*path == '/' && pathexists(path, PATH_REGULAR|PATH_EXECUTE) && !stat(path, &ps))
break;
}
}
}
strncopy(p, key, x - p);
p = np;
x = nx;
strcpy(exe, path);
if (op >= -1 && (!(st.st_mode & S_ISUID) && ps.st_uid != geteuid() || rofs(path)))
{
if (!(p = getenv("HOME")))
return 0;
p = path + sfsprintf(path, PATH_MAX - 1, "%s/.%s/%s/", p, probe, HOSTTYPE);
}
strncopy(p, k, x - p);
force = 0;
if (op >= 0 && !stat(path, &st))
{
if (ptime <= (unsigned long)st.st_mtime || ptime <= (unsigned long)st.st_ctime)
{
/*
* verify (<sep><name><sep><option><sep><value>)* header
*/
if (sp = sfopen(NiL, path, "r"))
{
if (x = sfgetr(sp, '\n', 1))
{
while (*x && *x != ' ')
x++;
while (*x == ' ')
x++;
if (n = *x++)
for (;;)
{
for (k = x; *x && *x != n; x++);
if (!*x)
break;
*x++ = 0;
for (p = x; *x && *x != n; x++);
if (!*x)
break;
*x++ = 0;
for (e = x; *x && *x != n; x++);
if (!*x)
break;
*x++ = 0;
if (streq(k, "VERSION"))
{
ap = arg;
*ap++ = proc;
*ap++ = p;
*ap = 0;
ops[0] = PROC_FD_DUP(1, 2, 0);
ops[1] = 0;
if (pp = procopen(proc, arg, NiL, ops, PROC_READ))
{
if ((v = x - e) >= sizeof(ver))
v = sizeof(ver) - 1;
for (k = p = ver;; k++)
{
if (k >= p)
{
if (v <= 0 || (r = read(pp->rfd, k, v)) <= 0)
break;
v -= r;
p = k + r;
}
if (*k == '\n' || *k == '\r')
break;
if (*k == n)
*k = ' ';
}
*k = 0;
if (strcmp(ver, e))
{
force = 1;
error(0, "probe processor %s version \"%s\" changed -- expected \"%s\"", proc, ver, e);
}
procclose(pp);
}
break;
}
}
}
sfclose(sp);
}
if (!force)
op = -1;
}
if (op >= 0 && (st.st_mode & S_IWUSR))
{
if (op == 0)
error(0, "%s probe information for %s language processor %s must be manually regenerated", tool, lang, proc);
op = -1;
force = 0;
}
}
if (op >= 0)
{
ap = arg;
*ap++ = exe;
if (force)
*ap++ = "-f";
if (op > 0)
*ap++ = "-s";
*ap++ = (char*)lang;
*ap++ = (char*)tool;
*ap++ = proc;
*ap = 0;
if (procrun(exe, arg, 0))
return 0;
if (eaccess(path, R_OK))
return 0;
}
return path == buf ? strdup(path) : path;
}