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-rw-r--r--libglusterfs/src/spec.y626
1 files changed, 0 insertions, 626 deletions
diff --git a/libglusterfs/src/spec.y b/libglusterfs/src/spec.y
deleted file mode 100644
index 805e1e1fb..000000000
--- a/libglusterfs/src/spec.y
+++ /dev/null
@@ -1,626 +0,0 @@
-/*
- Copyright (c) 2006-2009 Gluster, Inc. <http://www.gluster.com>
- This file is part of GlusterFS.
-
- GlusterFS is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 3 of the License,
- or (at your option) any later version.
-
- GlusterFS is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see
- <http://www.gnu.org/licenses/>.
-*/
-
-
-%token SECTION_BEGIN SECTION_END OPTION NEWLINE SUBSECTION ID WHITESPACE COMMENT TYPE STRING_TOK
-
-%{
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <sys/mman.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-
-#include "xlator.h"
-#include "logging.h"
-
-static int new_section (char *name);
-static int section_type (char *type);
-static int section_option (char *key, char *value);
-static int section_sub (char *sub);
-static int section_end (void);
-static void sub_error (void);
-static void type_error (void);
-static void option_error (void);
-
-#define YYSTYPE char *
-#define GF_CMD_BUFFER_LEN (8 * GF_UNIT_KB)
-
-int yyerror (const char *);
-int yylex ();
-%}
-
-
-%%
-SECTIONS: SECTION | SECTIONS SECTION;
-
-SECTION: SECTION_HEADER SECTION_DATA SECTION_FOOTER;
-SECTION_HEADER: SECTION_BEGIN WORD {if( -1 == new_section ($2)) { YYABORT; } };
-SECTION_FOOTER: SECTION_END {if( -1 == section_end ()) { YYABORT; } };
-
-SECTION_DATA: TYPE_LINE OPTIONS_LINE SUBSECTION_LINE OPTIONS_LINE |
- TYPE_LINE SUBSECTION_LINE OPTIONS_LINE |
- TYPE_LINE OPTIONS_LINE SUBSECTION_LINE |
- TYPE_LINE SUBSECTION_LINE |
- TYPE_LINE OPTIONS_LINE |
- OPTIONS_LINE SUBSECTION_LINE OPTIONS_LINE | /* error case */
- OPTIONS_LINE; /* error case */
-
-TYPE_LINE: TYPE WORD {if ( -1 == section_type ($2)) { YYABORT; }} | TYPE { type_error(); YYABORT; };
-
-SUBSECTION_LINE: SUBSECTION WORDS | SUBSECTION { sub_error (); YYABORT; };
-
-OPTIONS_LINE: OPTION_LINE | OPTIONS_LINE OPTION_LINE;
-
-OPTION_LINE: OPTION WORD WORD {if(-1 == section_option($2,$3)){YYABORT;} } |
- OPTION WORD { option_error (); YYABORT; } |
- OPTION { option_error (); YYABORT; };
-
-WORDS: WORD {if (-1 == section_sub ($1)) {YYABORT; } } | WORDS WORD { if (-1 == section_sub ($2)) { YYABORT; } };
-WORD: ID | STRING_TOK ;
-%%
-
-xlator_t *complete_tree = NULL;
-xlator_t *tree = NULL;
-glusterfs_ctx_t *gctx;
-
-static void
-type_error (void)
-{
- extern int yylineno;
-
- fprintf (stderr, "Volume '%s', before line %d: Please specify volume 'type'.",
- complete_tree->name, yylineno);
- gf_log ("parser", GF_LOG_ERROR,
- "Volume '%s', before line %d: Please specify volume 'type'.",
- complete_tree->name, yylineno);
- return;
-}
-
-static void
-sub_error (void)
-{
- extern int yylineno;
-
- fprintf (stderr, "Volume %s, before line %d: Please specify subvolumes for the volume. ",
- complete_tree->name, yylineno);
- gf_log ("parser", GF_LOG_ERROR,
- "Volume %s, before line %d: Please specify subvolumes for the volume. ",
- complete_tree->name, yylineno);
- return;
-}
-
-static void
-option_error (void)
-{
- extern int yylineno;
-
- fprintf (stderr, "Volume %s, before line %d: Please specify "
- "option <key> <value> \n",
- complete_tree->name, yylineno);
- gf_log ("parser", GF_LOG_ERROR,
- "Volume %s, before line %d: Please specify "
- "option <key> <value>",
- complete_tree->name, yylineno);
- return;
-}
-
-static int
-cut_tree (xlator_t *tree)
-{
- xlator_t *trav = tree, *prev = tree;
-
- if (!tree) {
- gf_log ("parser", GF_LOG_DEBUG, "Translator tree not found");
- return -1;
- }
-
- gf_log ("parser", GF_LOG_DEBUG, "Failed to build translator graph");
-
- while (prev) {
- trav = prev->next;
- dict_destroy (prev->options);
- FREE (prev->name);
- FREE (prev);
- prev = trav;
- }
-
- return 0;
-}
-
-
-static int
-new_section (char *name)
-{
- extern int yylineno;
- xlator_t *trav = complete_tree;
- xlator_t *node = NULL;
-
- node = (void *) calloc (1, sizeof (*node));
- if (!node) {
- gf_log ("parser", GF_LOG_ERROR, "Out of memory");
- return -1;
- }
-
- if (!name) {
- gf_log ("parser", GF_LOG_DEBUG,
- "Invalid argument name: '%s'", name);
- FREE (node);
- return -1;
- }
-
- while (trav) {
- if (!strcmp (name, trav->name)) {
- fprintf (stderr,
- "Line %d: volume '%s' defined again\n",
- yylineno, name);
- gf_log ("parser", GF_LOG_ERROR,
- "Line %d: volume '%s' defined again",
- yylineno, name);
- return -1;
- }
- trav = trav->next;
- }
-
- node->ctx = gctx;
- node->name = name;
- node->next = complete_tree;
- if (complete_tree)
- complete_tree->prev = node;
- node->options = get_new_dict ();
- complete_tree = node;
-
- tree = node;
- gf_log ("parser", GF_LOG_TRACE, "New node for '%s'", name);
-
- return 0;
-}
-
-static int
-section_type (char *type)
-{
- extern int yylineno;
- int32_t ret = -1;
- if (!type) {
- gf_log ("parser", GF_LOG_DEBUG, "Invalid argument type");
- return -1;
- }
-
- ret = xlator_set_type (tree, type);
- if (ret) {
- fprintf (stderr, "Volume '%s', line %d: type '%s' is not "
- "valid or not found on this machine\n",
- complete_tree->name, yylineno, type);
- gf_log ("parser", GF_LOG_ERROR,
- "Volume '%s', line %d: type '%s' is not valid or "
- "not found on this machine",
- complete_tree->name, yylineno, type);
- return -1;
- }
- gf_log ("parser", GF_LOG_TRACE, "Type:%s:%s", tree->name, type);
-
- return 0;
-}
-
-
-static int
-section_option (char *key, char *value)
-{
- extern int yylineno;
-
- int ret = 0;
-
- if (!key || !value){
- fprintf (stderr, "Invalid argument\n");
- gf_log ("parser", GF_LOG_ERROR, "Invalid argument");
- return -1;
- }
-
- ret = dict_set (tree->options, key, str_to_data (value));
-
- if (ret == 1) {
- gf_log ("parser", GF_LOG_ERROR,
- "Volume '%s', line %d: duplicate entry "
- "('option %s') present",
- tree->name, yylineno, key);
- return -1;
- }
- gf_log ("parser", GF_LOG_TRACE, "Option:%s:%s:%s",
- tree->name, key, value);
-
- return 0;
-}
-
-static int
-section_sub (char *sub)
-{
- extern int yylineno;
- xlator_t *trav = complete_tree;
- xlator_list_t *xlchild, *tmp, *xlparent;
-
- if (!sub) {
- fprintf (stderr, "Invalid subvolumes argument\n");
- gf_log ("parser", GF_LOG_ERROR, "Invalid subvolumes argument");
- return -1;
- }
-
- while (trav) {
- if (!strcmp (sub, trav->name))
- break;
- trav = trav->next;
- }
- if (!trav) {
- fprintf (stderr,
- "Volume '%s', line %d: subvolume '%s' is not "
- "defined prior to usage\n",
- complete_tree->name, yylineno, sub);
- gf_log ("parser", GF_LOG_ERROR,
- "Volume '%s', line %d: subvolume '%s' is not defined "
- "prior to usage",
- complete_tree->name, yylineno, sub);
- return -1;
- }
-
- if (trav == tree) {
- fprintf (stderr, "Volume '%s', line %d: has '%s' itself as "
- "subvolume\n",
- complete_tree->name, yylineno, sub);
- gf_log ("parser", GF_LOG_ERROR,
- "Volume '%s', line %d: has '%s' itself as subvolume",
- complete_tree->name, yylineno, sub);
- return -1;
- }
-
- xlparent = (void *) calloc (1, sizeof (*xlparent));
- if (!xlparent) {
- gf_log ("parser", GF_LOG_ERROR, "Out of memory");
- return -1;
- }
- xlparent->xlator = tree;
-
- tmp = trav->parents;
- if (tmp == NULL) {
- trav->parents = xlparent;
- } else {
- while (tmp->next)
- tmp = tmp->next;
- tmp->next = xlparent;
- }
-
- xlchild = (void *) calloc (1, sizeof(*xlchild));
- if (!xlchild) {
- FREE (xlparent);
- gf_log ("parser", GF_LOG_ERROR, "Out of memory");
- return -1;
- }
- xlchild->xlator = trav;
-
- tmp = tree->children;
- if (tmp == NULL) {
- tree->children = xlchild;
- } else {
- while (tmp->next)
- tmp = tmp->next;
- tmp->next = xlchild;
- }
-
- gf_log ("parser", GF_LOG_TRACE, "child:%s->%s", tree->name, sub);
-
- return 0;
-}
-
-static int
-section_end (void)
-{
- if (!tree->fops) {
- fprintf (stderr,
- "\"type\" not specified for volume %s\n", tree->name);
- gf_log ("parser", GF_LOG_ERROR,
- "\"type\" not specified for volume %s", tree->name);
- return -1;
- }
- gf_log ("parser", GF_LOG_TRACE, "end:%s", tree->name);
-
- tree = NULL;
- return 0;
-}
-
-int
-yywrap ()
-{
- return 1;
-}
-
-int
-yyerror (const char *str)
-{
- extern char *yytext;
- extern int yylineno;
-
- if (complete_tree && complete_tree->name)
- {
- if (!strcmp (yytext, "volume"))
- {
- fprintf (stderr,
- "'end-volume' not defined for volume '%s'\n",
- complete_tree->name);
- gf_log ("parser", GF_LOG_ERROR,
- "'end-volume' not defined for volume '%s'",
- complete_tree->name);
- }
- else if (!strcmp (yytext, "type"))
- {
- fprintf (stderr, "line %d: duplicate 'type' defined "
- "for volume '%s'",
- yylineno, complete_tree->name);
- gf_log ("parser", GF_LOG_ERROR,
- "line %d: duplicate 'type' defined for "
- "volume '%s'",
- yylineno, complete_tree->name);
- }
- else if (!strcmp (yytext, "subvolumes"))
- {
- fprintf (stderr, "line %d: duplicate 'subvolumes' "
- "defined for volume '%s'",
- yylineno, complete_tree->name);
- gf_log ("parser", GF_LOG_ERROR,
- "line %d: duplicate 'subvolumes' defined for "
- "volume '%s'",
- yylineno, complete_tree->name);
- }
- else if (tree)
- {
- fprintf (stderr,
- "syntax error: line %d (volume '%s'): \"%s\""
- "\nallowed tokens are 'volume', 'type', "
- "'subvolumes', 'option', 'end-volume'",
- yylineno, complete_tree->name,
- yytext);
-
- gf_log ("parser", GF_LOG_ERROR,
- "syntax error: line %d (volume '%s'): \"%s\""
- "\nallowed tokens are 'volume', 'type', "
- "'subvolumes', 'option', 'end-volume'()",
- yylineno, complete_tree->name,
- yytext);
- }
- else
- {
- fprintf (stderr,
- "syntax error: line %d (just after volume "
- "'%s'): \"%s\"\n(%s)",
- yylineno, complete_tree->name,
- yytext,
- "allowed tokens are 'volume', 'type', "
- "'subvolumes', 'option', 'end-volume'");
- gf_log ("parser", GF_LOG_ERROR,
- "syntax error: line %d (just after volume "
- "'%s'): \"%s\"\n(%s)",
- yylineno, complete_tree->name,
- yytext,
- "allowed tokens are 'volume', 'type', "
- "'subvolumes', 'option', 'end-volume'");
- }
- }
- else
- {
- fprintf (stderr,
- "syntax error in line %d: \"%s\" \n"
- "(allowed tokens are 'volume', 'type', "
- "'subvolumes', 'option', 'end-volume')\n",
- yylineno, yytext);
- gf_log ("parser", GF_LOG_ERROR,
- "syntax error in line %d: \"%s\" \n"
- "(allowed tokens are 'volume', 'type', "
- "'subvolumes', 'option', 'end-volume')\n",
- yylineno, yytext);
- }
-
- cut_tree (tree);
- complete_tree = NULL;
- return 0;
-}
-
-static int
-execute_cmd (char *cmd, char **result, size_t size)
-{
- FILE *fpp = NULL;
- int i = 0, status = 0;
- int character = 0;
- char *buf = *result;
-
- fpp = popen (cmd, "r");
- if (!fpp) {
- gf_log ("parser", GF_LOG_ERROR, "%s: failed to popen", cmd);
- return -1;
- }
-
- while ((character = fgetc (fpp)) != EOF) {
- if (i == size) {
- size *= 2;
- buf = *result = realloc (*result, size);
- }
-
- buf[i++] = character;
- }
-
- if (i > 0) {
- i--;
- buf[i] = '\0';
- }
-
- status = pclose (fpp);
- if (status == -1 || !WIFEXITED (status) ||
- ((WEXITSTATUS (status)) != 0)) {
- i = -1;
- buf[0] = '\0';
- }
-
- return i;
-}
-
-static int
-parse_backtick (FILE *srcfp, FILE *dstfp)
-{
- int ret = 0, i = 0;
- char *cmd = NULL, *result = NULL;
- size_t cmd_buf_size = GF_CMD_BUFFER_LEN;
- char escaped = 0, in_backtick = 0;
- int line = 1, column = 0, backtick_line = 0, backtick_column = 0;
- int character = 0;
-
- fseek (srcfp, 0L, SEEK_SET);
- fseek (dstfp, 0L, SEEK_SET);
-
- cmd = CALLOC (cmd_buf_size, 1);
- if (cmd == NULL) {
- gf_log ("parser", GF_LOG_ERROR, "Out of memory");
- return -1;
- }
-
- result = CALLOC (cmd_buf_size * 2, 1);
- if (result == NULL) {
- FREE (cmd);
- gf_log ("parser", GF_LOG_ERROR, "Out of memory");
- return -1;
- }
-
- while ((character = fgetc (srcfp)) != EOF) {
- if ((character == '`') && !escaped) {
- if (in_backtick) {
- cmd[i] = '\0';
- result[0] = '\0';
-
- ret = execute_cmd (cmd, &result,
- 2 * cmd_buf_size);
- if (ret < 0) {
- ret = -1;
- goto out;
- }
- fwrite (result, ret, 1, dstfp);
- } else {
- i = 0;
- cmd[i] = '\0';
-
- backtick_column = column;
- backtick_line = line;
- }
-
- in_backtick = !in_backtick;
- } else {
- if (in_backtick) {
- if (i == cmd_buf_size) {
- cmd_buf_size *= 2;
- cmd = realloc (cmd, cmd_buf_size);
- if (cmd == NULL) {
- return -1;
- }
-
- result = realloc (result,
- 2 * cmd_buf_size);
- if (result == NULL) {
- free (cmd);
- return -1;
- }
- }
-
- cmd[i++] = character;
- } else {
- fputc (character, dstfp);
- }
- }
-
- if (character == '\\') {
- escaped = !escaped;
- } else {
- escaped = 0;
- }
-
- if (character == '\n') {
- line++;
- column = 0;
- } else {
- column++;
- }
- }
-
- if (in_backtick) {
- gf_log ("parser", GF_LOG_ERROR,
- "Unterminated backtick in volume specfication file at line (%d), column (%d).",
- line, column);
- ret = -1;
- }
-
-out:
- fseek (srcfp, 0L, SEEK_SET);
- fseek (dstfp, 0L, SEEK_SET);
- free (cmd);
- free (result);
-
- return ret;
-}
-
-extern FILE *yyin;
-xlator_t *
-file_to_xlator_tree (glusterfs_ctx_t *ctx,
- FILE *fp)
-{
- int32_t ret = 0;
- xlator_t *tmp_tree = NULL;
- FILE *tmp_file = NULL;
- char *buffer = NULL;
-
- tmp_file = tmpfile ();
- if (NULL == tmp_file) {
- gf_log ("parser", GF_LOG_ERROR,
- "cannot create temparory file");
- return NULL;
- }
-
- ret = parse_backtick (fp, tmp_file);
- if (ret < 0) {
- gf_log ("parser", GF_LOG_ERROR,
- "parsing of backticks failed");
- fclose (tmp_file);
- FREE (buffer);
- return NULL;
- }
-
- gctx = ctx;
- yyin = tmp_file;
- ret = yyparse ();
-
- fclose (tmp_file);
- FREE (buffer);
-
- if (1 == ret) {
- gf_log ("parser", GF_LOG_DEBUG,
- "parsing of volfile failed, please review it "
- "once more");
- tree = complete_tree = NULL;
- return NULL;
- }
-
- tmp_tree = complete_tree;
- tree = complete_tree = NULL;
-
- return tmp_tree;
-}
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