X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fofp-parse.c;h=de7cd9c72e17603dc096a21c330e7113baf2ab67;hb=14cff48183cfd6ea939d4d8012fde192b03eeca1;hp=3fac4749c0106924a21ffd936f65bb51ded29743;hpb=685a51a5b89750cead1b2934c2079d2bb9c52a4a;p=sliver-openvswitch.git

diff --git a/lib/ofp-parse.c b/lib/ofp-parse.c
index 3fac4749c..de7cd9c72 100644
--- a/lib/ofp-parse.c
+++ b/lib/ofp-parse.c
@@ -43,7 +43,7 @@ str_to_u32(const char *str)
     char *tail;
     uint32_t value;
 
-    if (!str) {
+    if (!str[0]) {
         ovs_fatal(0, "missing required numeric argument");
     }
 
@@ -61,6 +61,10 @@ str_to_u64(const char *str)
     char *tail;
     uint64_t value;
 
+    if (!str[0]) {
+        ovs_fatal(0, "missing required numeric argument");
+    }
+
     errno = 0;
     value = strtoull(str, &tail, 0);
     if (errno == EINVAL || errno == ERANGE || *tail) {
@@ -271,6 +275,7 @@ str_to_action(char *str, struct ofpbuf *b)
     pos = str;
     n_actions = 0;
     for (;;) {
+        char empty_string[] = "";
         char *act, *arg;
         size_t actlen;
         uint16_t port;
@@ -320,7 +325,7 @@ str_to_action(char *str, struct ofpbuf *b)
             pos = arg + arglen;
         } else {
             /* There might be no argument at all. */
-            arg = NULL;
+            arg = empty_string;
             pos = act + actlen + (act[actlen] != '\0');
         }
         act[actlen] = '\0';
@@ -410,7 +415,7 @@ str_to_action(char *str, struct ofpbuf *b)
             nan->subtype = htons(NXAST_NOTE);
 
             b->size -= sizeof nan->note;
-            while (arg && *arg != '\0') {
+            while (*arg != '\0') {
                 uint8_t byte;
                 bool ok;
 
@@ -472,7 +477,7 @@ str_to_action(char *str, struct ofpbuf *b)
 
             /* Unless a numeric argument is specified, we send the whole
              * packet to the controller. */
-            if (arg && (strspn(arg, "0123456789") == strlen(arg))) {
+            if (arg[0] && (strspn(arg, "0123456789") == strlen(arg))) {
                oao->max_len = htons(str_to_u32(arg));
             } else {
                 oao->max_len = htons(UINT16_MAX);
@@ -721,7 +726,7 @@ parse_reg_value(struct cls_rule *rule, int reg_idx, const char *value)
 /* Convert 'string' (as described in the Flow Syntax section of the ovs-ofctl
  * man page) into 'pf'.  If 'actions' is specified, an action must be in
  * 'string' and may be expanded or reallocated. */
-static void
+void
 parse_ofp_str(struct flow_mod *fm, uint8_t *table_idx,
               struct ofpbuf *actions, char *string)
 {
@@ -866,30 +871,16 @@ parse_ofp_flow_mod_str(struct list *packets, enum nx_flow_format *cur_format,
  * 'stream' and the command is always OFPFC_ADD.  Returns false if end-of-file
  * is reached before reading a flow, otherwise true. */
 bool
-parse_ofp_add_flow_file(struct list *packets, enum nx_flow_format *cur,
-                        FILE *stream)
+parse_ofp_flow_mod_file(struct list *packets, enum nx_flow_format *cur,
+                        FILE *stream, uint16_t command)
 {
-    struct ds s = DS_EMPTY_INITIALIZER;
-    bool ok = false;
-
-    while (!ds_get_line(&s, stream)) {
-        char *line = ds_cstr(&s);
-        char *comment;
+    struct ds s;
+    bool ok;
 
-        /* Delete comments. */
-        comment = strchr(line, '#');
-        if (comment) {
-            *comment = '\0';
-        }
-
-        /* Drop empty lines. */
-        if (line[strspn(line, " \t\n")] == '\0') {
-            continue;
-        }
-
-        parse_ofp_flow_mod_str(packets, cur, line, OFPFC_ADD);
-        ok = true;
-        break;
+    ds_init(&s);
+    ok = ds_get_preprocessed_line(&s, stream) == 0;
+    if (ok) {
+        parse_ofp_flow_mod_str(packets, cur, ds_cstr(&s), command);
     }
     ds_destroy(&s);
 
@@ -909,4 +900,3 @@ parse_ofp_flow_stats_request_str(struct flow_stats_request *fsr,
     fsr->out_port = fm.out_port;
     fsr->table_id = table_id;
 }
-