Warn that wildcards must be used as the last character in a string

[lttng-tools.git] / src / lib / lttng-ctl / lttng-ctl.c

diff --git a/src/lib/lttng-ctl/lttng-ctl.c b/src/lib/lttng-ctl/lttng-ctl.c
index d2f6799e11a070031805f09774e33b137c33d38c..b9dc1efb095de163ff3d4ca50bfba28ed6596378 100644 (file)
--- a/src/lib/lttng-ctl/lttng-ctl.c
+++ b/src/lib/lttng-ctl/lttng-ctl.c
@@ -74,6 +74,7 @@ static int connected;
  */
 int lttng_opt_quiet;
 int lttng_opt_verbose;
+int lttng_opt_mi;
 
 /*
  * Copy string from src to dst and enforce null terminated byte.
@@ -710,7 +711,7 @@ static char *set_jul_filter(const char *filter, struct lttng_event *ev)
                }
                if (err < 0) {
                        PERROR("asprintf");
-                       goto end;
+                       goto error;
                }
        }
 
@@ -724,23 +725,30 @@ static char *set_jul_filter(const char *filter, struct lttng_event *ev)
                        op = "==";
                }
 
-               if (filter) {
-                       err = asprintf(&jul_filter, "%s && int_loglevel %s %d", filter, op,
+               if (filter || jul_filter) {
+                       char *new_filter;
+
+                       err = asprintf(&new_filter, "%s && int_loglevel %s %d",
+                                       jul_filter ? jul_filter : filter, op,
                                        ev->loglevel);
+                       if (jul_filter) {
+                               free(jul_filter);
+                       }
+                       jul_filter = new_filter;
                } else {
                        err = asprintf(&jul_filter, "int_loglevel %s %d", op,
                                        ev->loglevel);
                }
                if (err < 0) {
                        PERROR("asprintf");
-                       free(jul_filter);
-                       jul_filter = NULL;
-                       goto end;
+                       goto error;
                }
        }
 
-end:
        return jul_filter;
+error:
+       free(jul_filter);
+       return NULL;
 }
 
 /*
@@ -817,6 +825,12 @@ static int generate_filter(char *filter_expression,
                ret = -LTTNG_ERR_FILTER_INVAL;
                goto parse_error;
        }
+       /* Validate strings used as literals in the expression */
+       ret = filter_visitor_ir_validate_string(ctx);
+       if (ret) {
+               ret = -LTTNG_ERR_FILTER_INVAL;
+               goto parse_error;
+       }
        dbg_printf("done\n");
 
        dbg_printf("Generating bytecode... ");
@@ -844,7 +858,6 @@ static int generate_filter(char *filter_expression,
        return 0;
 
 parse_error:
-       filter_bytecode_free(ctx);
        filter_ir_free(ctx);
        filter_parser_ctx_free(ctx);
 filter_alloc_error:
@@ -967,7 +980,7 @@ int lttng_enable_event_with_exclusions(struct lttng_handle *handle,
                        + LTTNG_SYMBOL_NAME_LEN * exclusion_count);
        if (!varlen_data) {
                ret = -LTTNG_ERR_EXCLUSION_NOMEM;
-               goto filter_error;
+               goto mem_error;
        }
 
        /* Put exclusion names first in the data */
@@ -996,19 +1009,19 @@ int lttng_enable_event_with_exclusions(struct lttng_handle *handle,
                        lsm.u.enable.bytecode_len + lsm.u.enable.expression_len, NULL);
        free(varlen_data);
 
-filter_error:
-       if (filter_expression) {
+mem_error:
+       if (filter_expression && ctx) {
                filter_bytecode_free(ctx);
                filter_ir_free(ctx);
                filter_parser_ctx_free(ctx);
-               if (free_filter_expression) {
-                       /*
-                        * The filter expression has been replaced and must be
-                        * freed as it is not the original filter expression
-                        * received as a parameter.
-                        */
-                       free(filter_expression);
-               }
+       }
+filter_error:
+       if (free_filter_expression) {
+               /*
+                * The filter expression has been replaced and must be freed as it is
+                * not the original filter expression received as a parameter.
+                */
+               free(filter_expression);
        }
 error:
        /*