schema compile BUGFIX buffer overflow when generating path for logger
Fixes #826
diff --git a/src/tree_schema_compile.c b/src/tree_schema_compile.c
index cd22014..2e3e36a 100644
--- a/src/tree_schema_compile.c
+++ b/src/tree_schema_compile.c
@@ -202,12 +202,12 @@
if (nextlevel != 2) {
if ((parent && parent->module == ctx->mod) || (!parent && ctx->path_len > 1 && name[0] == '{')) {
/* module not changed, print the name unprefixed */
- len = sprintf(&ctx->path[ctx->path_len], "%s%s", nextlevel ? "/" : "", name);
+ len = snprintf(&ctx->path[ctx->path_len], LYSC_CTX_BUFSIZE - ctx->path_len, "%s%s", nextlevel ? "/" : "", name);
} else {
- len = sprintf(&ctx->path[ctx->path_len], "%s%s:%s", nextlevel ? "/" : "", ctx->mod->name, name);
+ len = snprintf(&ctx->path[ctx->path_len], LYSC_CTX_BUFSIZE - ctx->path_len, "%s%s:%s", nextlevel ? "/" : "", ctx->mod->name, name);
}
} else {
- len = sprintf(&ctx->path[ctx->path_len], "='%s'}", name);
+ len = snprintf(&ctx->path[ctx->path_len], LYSC_CTX_BUFSIZE - ctx->path_len, "='%s'}", name);
}
ctx->path_len += len;
}