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-rw-r--r--src/libsystemd-bus/bus-internal.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/src/libsystemd-bus/bus-internal.c b/src/libsystemd-bus/bus-internal.c
index e58a8b1da1..d27b3f466b 100644
--- a/src/libsystemd-bus/bus-internal.c
+++ b/src/libsystemd-bus/bus-internal.c
@@ -60,3 +60,111 @@ bool object_path_is_valid(const char *p) {
return true;
}
+
+bool interface_name_is_valid(const char *p) {
+ const char *q;
+ bool dot, found_dot;
+
+ if (isempty(p))
+ return false;
+
+ for (dot = true, q = p; *q; q++)
+ if (*q == '.') {
+ if (dot)
+ return false;
+
+ found_dot = dot = true;
+ } else {
+ bool good;
+
+ good =
+ (*q >= 'a' && *q <= 'z') ||
+ (*q >= 'A' && *q <= 'Z') ||
+ (!dot && *q >= '0' && *q <= '9') ||
+ *q == '_';
+
+ if (!good)
+ return false;
+
+ dot = false;
+ }
+
+ if (q - p > 255)
+ return false;
+
+ if (dot)
+ return false;
+
+ if (!found_dot)
+ return false;
+
+ return true;
+}
+
+bool service_name_is_valid(const char *p) {
+ const char *q;
+ bool dot, found_dot, unique;
+
+ if (isempty(p))
+ return false;
+
+ unique = p[0] == ':';
+
+ for (dot = true, q = unique ? p+1 : p; *q; q++)
+ if (*q == '.') {
+ if (dot)
+ return false;
+
+ found_dot = dot = true;
+ } else {
+ bool good;
+
+ good =
+ (*q >= 'a' && *q <= 'z') ||
+ (*q >= 'A' && *q <= 'Z') ||
+ ((!dot || unique) && *q >= '0' && *q <= '9') ||
+ *q == '_' || *q == '-';
+
+ if (!good)
+ return false;
+
+ dot = false;
+ }
+
+ if (q - p > 255)
+ return false;
+
+ if (dot)
+ return false;
+
+ if (!found_dot)
+ return false;
+
+ return true;
+
+}
+
+bool member_name_is_valid(const char *p) {
+ const char *q;
+
+ if (isempty(p))
+ return false;
+
+ for (q = p; *q; q++) {
+ bool good;
+
+ good =
+ (*q >= 'a' && *q <= 'z') ||
+ (*q >= 'A' && *q <= 'Z') ||
+ (*q >= '0' && *q <= '9') ||
+ *q == '_';
+
+ if (!good)
+ return false;
+ }
+
+ if (q - p > 255)
+ return false;
+
+ return true;
+}