char *pathpath(register char *path, const char *p, const char *a, int mode)
{
register char *s;
char *x;
char buf[PATH_MAX];
static char *cmd;
if (!path)
path = buf;
if (!p) {
if (cmd)
free(cmd);
cmd = a ? strdup(a) : (char *) 0;
return 0;
}
if (strlen(p) < PATH_MAX) {
strcpy(path, p);
if (pathexists(path, mode))
return (path == buf) ? strdup(path) : path;
}
if (*p == '/')
a = 0;
else if ((s = (char *) a)) {
x = s;
if (strchr(p, '/')) {
a = p;
p = "..";
} else
a = 0;
if ((!cmd || *cmd) &&
(strchr(s, '/') ||
(((s = cmd) || (opt_info_argv && (s = *opt_info_argv))) &&
strchr(s, '/') && !strchr(s, '\n') && !access(s, F_OK)) ||
(environ && (s = *environ) && *s++ == '_' &&
*s++ == '=' && strchr(s, '/') && !strneq(s, "/bin/", 5) &&
!strneq(s, "/usr/bin/", 9)) ||
(*x && !access(x, F_OK) && (s = getenv("PWD")) && *s == '/')
)
) {
if (!cmd)
cmd = strdup(s);
if (strlen(s) < (sizeof(buf) - 6)) {
s = strcopy(path, s);
for (;;) {
do
if (s <= path)
goto normal;
while (*--s == '/');
do
if (s <= path)
goto normal;
while (*--s != '/');
strcpy(s + 1, "bin");
if (pathexists(path, PATH_EXECUTE)) {
if ((s = pathaccess(path, path, p, a, mode)))
return path == buf ? strdup(s) : s;
goto normal;
}
}
normal:;
}
}
}
x = !a && strchr(p, '/') ? "" : pathbin();
if (!(s = pathaccess(path, x, p, a, mode)) && !*x
&& (x = getenv("FPATH")))
s = pathaccess(path, x, p, a, mode);
return (s && path == buf) ? strdup(s) : s;
}
char*
pathpath_20100601(const char* p, const char* a, int mode, register char* path, size_t size)
{
register char* s;
char* x;
char buf[PATH_MAX];
static char* cmd;
if (!path)
path = buf;
if (!p)
{
if (cmd)
free(cmd);
cmd = a ? strdup(a) : (char*)0;
return 0;
}
if (strlen(p) < size)
{
strcpy(path, p);
if (pathexists(path, mode))
{
if (*p != '/' && (mode & PATH_ABSOLUTE))
{
getcwd(buf, sizeof(buf));
s = buf + strlen(buf);
sfsprintf(s, sizeof(buf) - (s - buf), "/%s", p);
if (path != buf)
strcpy(path, buf);
}
return (path == buf) ? strdup(path) : path;
}
}
if (*p == '/')
a = 0;
else if (s = (char*)a)
{
x = s;
if (strchr(p, '/'))
{
a = p;
p = "..";
}
else
a = 0;
if ((!cmd || *cmd) && (strchr(s, '/') || (s = cmd)))
{
if (!cmd && *s == '/')
cmd = strdup(s);
if (strlen(s) < (sizeof(buf) - 6))
{
s = strcopy(path, s);
for (;;)
{
do if (s <= path) goto normal; while (*--s == '/');
do if (s <= path) goto normal; while (*--s != '/');
strcpy(s + 1, "bin");
if (pathexists(path, PATH_EXECUTE))
{
if (s = pathaccess(path, p, a, mode, path, size))
return path == buf ? strdup(s) : s;
goto normal;
}
}
normal: ;
}
}
}
x = !a && strchr(p, '/') ? "" : pathbin();
if (!(s = pathaccess(x, p, a, mode, path, size)) && !*x && (x = getenv("FPATH")))
s = pathaccess(x, p, a, mode, path, size);
return (s && path == buf) ? strdup(s) : s;
}
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;
}
