parser: use private namespace 'graphyy' instead of 'yy'

This can cause linker errors when accessing glusterfs through
libgfapi if the caller also uses a parser with 'yy' prefix.

Change-Id: I6544333c47a1f18193741420717c989e4bdea7b1
BUG: 764890
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/5643
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>

3 files changed, 39 insertions, 39 deletions

diff --git a/libglusterfs/src/Makefile.am b/libglusterfs/src/Makefile.am
index fc54f49a3..e4408eb1c 100644
--- a/libglusterfs/src/Makefile.am
+++ b/libglusterfs/src/Makefile.am
@@ -47,11 +47,11 @@ noinst_HEADERS = common-utils.h defaults.h dict.h glusterfs.h hashfn.h \
 EXTRA_DIST = graph.l graph.y
 
 graph.lex.c: graph.l y.tab.h
-	$(LEX) -t $(srcdir)/graph.l > $@
+	$(LEX) -Pgraphyy -t $(srcdir)/graph.l > $@
 
 y.tab.c: y.tab.h
 y.tab.h: graph.y
-	$(YACC) -d $(srcdir)/graph.y
+	$(YACC) -p graphyy -d $(srcdir)/graph.y
 
 CLEANFILES = graph.lex.c y.tab.c y.tab.h
 CONFIG_CLEAN_FILES = $(CONTRIB_BUILDDIR)/uuid/uuid_types.h
diff --git a/libglusterfs/src/graph.l b/libglusterfs/src/graph.l
index ff34f6ef1..e4eba9cbe 100644
--- a/libglusterfs/src/graph.l
+++ b/libglusterfs/src/graph.l
@@ -70,10 +70,10 @@ TYPE   [t][y][p][e]
                               yyunput (0, NULL);
                        }
                        BEGIN (INITIAL);
-                       yylval = text;
+                       graphyylval = text;
                        return STRING_TOK;
        }
 }
-[^ \t\r\n\"\\]+ {    yylval = gf_strdup (yytext) ; return ID; }
+[^ \t\r\n\"\\]+ {    graphyylval = gf_strdup (yytext) ; return ID; }
 [ \t\r\n]+             ;
 %%
diff --git a/libglusterfs/src/graph.y b/libglusterfs/src/graph.y
index 282cee381..ca4301ff0 100644
--- a/libglusterfs/src/graph.y
+++ b/libglusterfs/src/graph.y
@@ -38,8 +38,8 @@ static void option_error (void);
 #define YYSTYPE char *
 #define GF_CMD_BUFFER_LEN (8 * GF_UNIT_KB)
 
-int yyerror (const char *);
-int yylex ();
+int graphyyerror (const char *);
+int graphyylex ();
 %}
 
 
@@ -79,11 +79,11 @@ glusterfs_graph_t *construct;
 static void
 type_error (void)
 {
-        extern int yylineno;
+        extern int graphyylineno;
 
         gf_log ("parser", GF_LOG_ERROR,
                 "Volume %s, before line %d: Please specify volume type",
-                curr->name, yylineno);
+                curr->name, graphyylineno);
         return;
 }
 
@@ -91,11 +91,11 @@ type_error (void)
 static void
 sub_error (void)
 {
-        extern int yylineno;
+        extern int graphyylineno;
 
         gf_log ("parser", GF_LOG_ERROR,
                 "Volume %s, before line %d: Please specify subvolumes",
-                curr->name, yylineno);
+                curr->name, graphyylineno);
         return;
 }
 
@@ -103,12 +103,12 @@ sub_error (void)
 static void
 option_error (void)
 {
-        extern int yylineno;
+        extern int graphyylineno;
 
         gf_log ("parser", GF_LOG_ERROR,
                 "Volume %s, before line %d: Please specify "
                 "option <key> <value>",
-                curr->name, yylineno);
+                curr->name, graphyylineno);
         return;
 }
 
@@ -116,7 +116,7 @@ option_error (void)
 static int
 new_volume (char *name)
 {
-        extern int   yylineno;
+        extern int   graphyylineno;
         xlator_t    *trav = NULL;
         int          ret = 0;
 
@@ -130,7 +130,7 @@ new_volume (char *name)
         if (curr) {
                 gf_log ("parser", GF_LOG_ERROR,
                         "new volume (%s) defintion in line %d unexpected",
-                        name, yylineno);
+                        name, graphyylineno);
                 ret = -1;
                 goto out;
         }
@@ -150,7 +150,7 @@ new_volume (char *name)
                 if (!strcmp (name, trav->name)) {
                         gf_log ("parser", GF_LOG_ERROR,
 				"Line %d: volume '%s' defined again",
-                                yylineno, name);
+                                graphyylineno, name);
                         ret = -1;
                         goto out;
                 }
@@ -195,7 +195,7 @@ out:
 static int
 volume_type (char *type)
 {
-        extern int   yylineno;
+        extern int   graphyylineno;
         int32_t      ret = 0;
 
         if (!type) {
@@ -209,7 +209,7 @@ volume_type (char *type)
                 gf_log ("parser", GF_LOG_ERROR,
                         "Volume '%s', line %d: type '%s' is not valid or "
 			"not found on this machine",
-                        curr->name, yylineno, type);
+                        curr->name, graphyylineno, type);
                 ret = -1;
                 goto out;
         }
@@ -226,7 +226,7 @@ out:
 static int
 volume_option (char *key, char *value)
 {
-        extern int  yylineno;
+        extern int  graphyylineno;
         int         ret = 0;
         char       *set_value = NULL;
 
@@ -243,7 +243,7 @@ volume_option (char *key, char *value)
                 gf_log ("parser", GF_LOG_ERROR,
                         "Volume '%s', line %d: duplicate entry "
 			"('option %s') present",
-                        curr->name, yylineno, key);
+                        curr->name, graphyylineno, key);
                 ret = -1;
                 goto out;
         }
@@ -262,7 +262,7 @@ out:
 static int
 volume_sub (char *sub)
 {
-        extern int       yylineno;
+        extern int       graphyylineno;
         xlator_t        *trav = NULL;
         int              ret = 0;
 
@@ -284,7 +284,7 @@ volume_sub (char *sub)
                 gf_log ("parser", GF_LOG_ERROR,
                         "Volume '%s', line %d: subvolume '%s' is not defined "
 			"prior to usage",
-                        curr->name, yylineno, sub);
+                        curr->name, graphyylineno, sub);
                 ret = -1;
                 goto out;
         }
@@ -292,7 +292,7 @@ volume_sub (char *sub)
         if (trav == curr) {
                 gf_log ("parser", GF_LOG_ERROR,
                         "Volume '%s', line %d: has '%s' itself as subvolume",
-                        curr->name, yylineno, sub);
+                        curr->name, graphyylineno, sub);
                 ret = -1;
                 goto out;
         }
@@ -329,46 +329,46 @@ volume_end (void)
 
 
 int
-yywrap ()
+graphyywrap ()
 {
         return 1;
 }
 
 
 int
-yyerror (const char *str)
+graphyyerror (const char *str)
 {
-        extern char  *yytext;
-        extern int    yylineno;
+        extern char  *graphyytext;
+        extern int    graphyylineno;
 
-        if (curr && curr->name && yytext) {
-                if (!strcmp (yytext, "volume")) {
+        if (curr && curr->name && graphyytext) {
+                if (!strcmp (graphyytext, "volume")) {
                         gf_log ("parser", GF_LOG_ERROR,
                                 "'end-volume' not defined for volume '%s'",
 				curr->name);
-                } else if (!strcmp (yytext, "type")) {
+                } else if (!strcmp (graphyytext, "type")) {
                         gf_log ("parser", GF_LOG_ERROR,
                                 "line %d: duplicate 'type' defined for "
 				"volume '%s'",
-                                yylineno, curr->name);
-                } else if (!strcmp (yytext, "subvolumes")) {
+                                graphyylineno, curr->name);
+                } else if (!strcmp (graphyytext, "subvolumes")) {
                         gf_log ("parser", GF_LOG_ERROR,
                                 "line %d: duplicate 'subvolumes' defined for "
 				"volume '%s'",
-                                yylineno, curr->name);
+                                graphyylineno, curr->name);
                 } else if (curr) {
                         gf_log ("parser", GF_LOG_ERROR,
                                 "syntax error: line %d (volume '%s'): \"%s\""
 				"\nallowed tokens are 'volume', 'type', "
 				"'subvolumes', 'option', 'end-volume'()",
-                                yylineno, curr->name,
-				yytext);
+                                graphyylineno, curr->name,
+				graphyytext);
                 } else {
                         gf_log ("parser", GF_LOG_ERROR,
                                 "syntax error: line %d (just after volume "
 				"'%s'): \"%s\"\n(%s)",
-                                yylineno, curr->name,
-				yytext,
+                                graphyylineno, curr->name,
+				graphyytext,
                                 "allowed tokens are 'volume', 'type', "
 				"'subvolumes', 'option', 'end-volume'");
                 }
@@ -377,7 +377,7 @@ yyerror (const char *str)
                         "syntax error in line %d: \"%s\" \n"
                         "(allowed tokens are 'volume', 'type', "
 			"'subvolumes', 'option', 'end-volume')\n",
-                        yylineno, yytext);
+                        graphyylineno, graphyytext);
         }
 
         return -1;
@@ -530,7 +530,7 @@ out:
 }
 
 
-extern FILE *yyin;
+extern FILE *graphyyin;
 
 glusterfs_graph_t *
 glusterfs_graph_new ()
@@ -587,7 +587,7 @@ glusterfs_graph_construct (FILE *fp)
 
 	pthread_mutex_lock (&graph_mutex);
 	{
-		yyin = tmp_file;
+		graphyyin = tmp_file;
 		construct = graph;
 		ret = yyparse ();
 		construct = NULL;