char* get_executable_file() {
return symlink_target("/proc/self/exe");
}
int
check_pkg_symlinks(struct xbps_handle *xhp, const char *pkgname, void *arg)
{
xbps_array_t array;
xbps_object_t obj;
xbps_dictionary_t filesd = arg;
unsigned int i;
const char *file, *tgt = NULL;
char *path, *p, *buf, *buf2, *lnk, *dname, *tgt_path;
int rv;
bool broken = false;
array = xbps_dictionary_get(filesd, "links");
if (array == NULL)
return false;
for (i = 0; i < xbps_array_count(array); i++) {
obj = xbps_array_get(array, i);
if (!xbps_dictionary_get_cstring_nocopy(obj, "target", &tgt)) {
xbps_warn_printf("%s: `%s' symlink with "
"empty target object!\n", pkgname, file);
continue;
}
xbps_dictionary_get_cstring_nocopy(obj, "file", &file);
if (strcmp(tgt, "") == 0) {
xbps_warn_printf("%s: `%s' symlink with "
"empty target object!\n", pkgname, file);
continue;
}
if (strcmp(xhp->rootdir, "/")) {
tgt_path = xbps_xasprintf("%s%s", xhp->rootdir, tgt);
path = xbps_xasprintf("%s%s", xhp->rootdir, file);
} else {
path = strdup(file);
tgt_path = strdup(tgt);
}
lnk = symlink_target(pkgname, path);
if (lnk == NULL) {
free(tgt_path);
free(path);
continue;
}
p = strdup(path);
assert(p);
dname = dirname(p);
buf = xbps_xasprintf("%s/%s", dname, lnk);
buf2 = realpath(path, NULL);
if (buf2 == NULL) {
xbps_warn_printf("%s: broken symlink %s (target: %s)\n",
pkgname, file, tgt);
free(path);
free(tgt_path);
free(p);
free(buf);
free(lnk);
continue;
}
rv = 1;
if (lnk[0] != '/') {
/* relative symlink */
if ((strcmp(lnk, tgt) == 0) ||
(strcmp(buf, tgt_path) == 0) ||
(strcmp(buf2, tgt_path) == 0))
rv = 0;
} else {
/* absolute symlink */
if (strcmp(lnk, tgt) == 0)
rv = 0;
}
if (rv) {
xbps_warn_printf("%s: modified symlink %s "
"points to %s (shall be %s)\n",
pkgname, file, lnk, tgt);
broken = true;
}
free(p);
free(buf);
free(path);
free(tgt_path);
free(lnk);
}
return broken;
}