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grub2/0108-Remove-nested-functions-from-script-reading-and-pars.patch
Peter Jones 31004e676e Rebase to upstream snapshot.
2013-06-07 14:03:56 -04:00

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From 6b2f4673544608621b9c527983037f446caa201d Mon Sep 17 00:00:00 2001
From: Colin Watson <cjwatson@ubuntu.com>
Date: Tue, 15 Jan 2013 12:03:25 +0000
Subject: [PATCH 108/471] Remove nested functions from script reading and
parsing.
* grub-core/kern/parser.c (grub_parser_split_cmdline): Add
getline_data argument, passed to getline.
* grub-core/kern/rescue_parser.c (grub_rescue_parse_line): Add
getline_data argument, passed to grub_parser_split_cmdline.
* grub-core/script/lexer.c (grub_script_lexer_yywrap): Pass
lexerstate->getline_data to lexerstate->getline.
(grub_script_lexer_init): Add getline_data argument, saved in
lexerstate->getline_data.
* grub-core/script/main.c (grub_normal_parse_line): Add getline_data
argument, passed to grub_script_parse.
* grub-core/script/script.c (grub_script_parse): Add getline_data
argument, passed to grub_script_lexer_init.
* include/grub/parser.h (grub_parser_split_cmdline): Update
prototype. Update all callers to pass appropriate getline data.
(struct grub_parser.parse_line): Likewise.
(grub_rescue_parse_line): Likewise.
* include/grub/reader.h (grub_reader_getline_t): Add void *
argument.
* include/grub/script_sh.h (struct grub_lexer_param): Add
getline_data member.
(grub_script_parse): Update prototype. Update all callers to pass
appropriate getline data.
(grub_script_lexer_init): Likewise.
(grub_normal_parse_line): Likewise.
* grub-core/commands/legacycfg.c (legacy_file_getline): Add unused
data argument.
* grub-core/kern/parser.c (grub_parser_execute: getline): Make
static instead of nested. Rename to ...
(grub_parser_execute_getline): ... this.
* grub-core/kern/rescue_reader.c (grub_rescue_read_line): Add unused
data argument.
* grub-core/normal/main.c (read_config_file: getline): Make static
instead of nested. Rename to ...
(read_config_file_getline): ... this.
(grub_normal_read_line): Add unused data argument.
* grub-core/script/execute.c (grub_script_execute_sourcecode:
getline): Make static instead of nested. Rename to ...
(grub_script_execute_sourcecode_getline): ... this.
* util/grub-script-check.c (main: get_config_line): Make static
instead of nested.
---
ChangeLog | 46 ++++++++++++++++
grub-core/commands/legacycfg.c | 7 +--
grub-core/kern/parser.c | 54 ++++++++++---------
grub-core/kern/rescue_parser.c | 6 ++-
grub-core/kern/rescue_reader.c | 7 +--
grub-core/normal/completion.c | 2 +-
grub-core/normal/main.c | 53 +++++++++---------
grub-core/script/execute.c | 51 ++++++++++--------
grub-core/script/lexer.c | 9 ++--
grub-core/script/main.c | 5 +-
grub-core/script/script.c | 6 ++-
include/grub/parser.h | 7 ++-
include/grub/reader.h | 2 +-
include/grub/script_sh.h | 12 +++--
util/grub-script-check.c | 119 ++++++++++++++++++++++-------------------
15 files changed, 238 insertions(+), 148 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index d07f235..d02749b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,51 @@
2013-01-15 Colin Watson <cjwatson@ubuntu.com>
+ Remove nested functions from script reading and parsing.
+
+ * grub-core/kern/parser.c (grub_parser_split_cmdline): Add
+ getline_data argument, passed to getline.
+ * grub-core/kern/rescue_parser.c (grub_rescue_parse_line): Add
+ getline_data argument, passed to grub_parser_split_cmdline.
+ * grub-core/script/lexer.c (grub_script_lexer_yywrap): Pass
+ lexerstate->getline_data to lexerstate->getline.
+ (grub_script_lexer_init): Add getline_data argument, saved in
+ lexerstate->getline_data.
+ * grub-core/script/main.c (grub_normal_parse_line): Add getline_data
+ argument, passed to grub_script_parse.
+ * grub-core/script/script.c (grub_script_parse): Add getline_data
+ argument, passed to grub_script_lexer_init.
+ * include/grub/parser.h (grub_parser_split_cmdline): Update
+ prototype. Update all callers to pass appropriate getline data.
+ (struct grub_parser.parse_line): Likewise.
+ (grub_rescue_parse_line): Likewise.
+ * include/grub/reader.h (grub_reader_getline_t): Add void *
+ argument.
+ * include/grub/script_sh.h (struct grub_lexer_param): Add
+ getline_data member.
+ (grub_script_parse): Update prototype. Update all callers to pass
+ appropriate getline data.
+ (grub_script_lexer_init): Likewise.
+ (grub_normal_parse_line): Likewise.
+
+ * grub-core/commands/legacycfg.c (legacy_file_getline): Add unused
+ data argument.
+ * grub-core/kern/parser.c (grub_parser_execute: getline): Make
+ static instead of nested. Rename to ...
+ (grub_parser_execute_getline): ... this.
+ * grub-core/kern/rescue_reader.c (grub_rescue_read_line): Add unused
+ data argument.
+ * grub-core/normal/main.c (read_config_file: getline): Make static
+ instead of nested. Rename to ...
+ (read_config_file_getline): ... this.
+ (grub_normal_read_line): Add unused data argument.
+ * grub-core/script/execute.c (grub_script_execute_sourcecode:
+ getline): Make static instead of nested. Rename to ...
+ (grub_script_execute_sourcecode_getline): ... this.
+ * util/grub-script-check.c (main: get_config_line): Make static
+ instead of nested.
+
+2013-01-15 Colin Watson <cjwatson@ubuntu.com>
+
Remove nested functions from memory map iterators.
* grub-core/efiemu/mm.c (grub_efiemu_mmap_iterate): Add hook_data
diff --git a/grub-core/commands/legacycfg.c b/grub-core/commands/legacycfg.c
index e34eed4..a3ad5c6 100644
--- a/grub-core/commands/legacycfg.c
+++ b/grub-core/commands/legacycfg.c
@@ -37,7 +37,8 @@ GRUB_MOD_LICENSE ("GPLv3+");
/* Helper for legacy_file. */
static grub_err_t
-legacy_file_getline (char **line, int cont __attribute__ ((unused)))
+legacy_file_getline (char **line, int cont __attribute__ ((unused)),
+ void *data __attribute__ ((unused)))
{
*line = 0;
return GRUB_ERR_NONE;
@@ -134,7 +135,7 @@ legacy_file (const char *filename)
if (parsed && !entryname)
{
- grub_normal_parse_line (parsed, legacy_file_getline);
+ grub_normal_parse_line (parsed, legacy_file_getline, NULL);
grub_print_error ();
grub_free (parsed);
parsed = NULL;
@@ -180,7 +181,7 @@ legacy_file (const char *filename)
grub_free (args);
}
- grub_normal_parse_line (suffix, legacy_file_getline);
+ grub_normal_parse_line (suffix, legacy_file_getline, NULL);
grub_print_error ();
grub_free (suffix);
grub_free (entrysrc);
diff --git a/grub-core/kern/parser.c b/grub-core/kern/parser.c
index d1be53e..b261fa0 100644
--- a/grub-core/kern/parser.c
+++ b/grub-core/kern/parser.c
@@ -107,7 +107,8 @@ check_varstate (grub_parser_state_t s)
}
grub_err_t
-grub_parser_split_cmdline (const char *cmdline, grub_reader_getline_t getline,
+grub_parser_split_cmdline (const char *cmdline,
+ grub_reader_getline_t getline, void *getline_data,
int *argc, char ***argv)
{
grub_parser_state_t state = GRUB_PARSER_STATE_TEXT;
@@ -149,7 +150,7 @@ grub_parser_split_cmdline (const char *cmdline, grub_reader_getline_t getline,
if (!rd || !*rd)
{
if (getline)
- getline (&rd, 1);
+ getline (&rd, 1, getline_data);
else
break;
}
@@ -232,36 +233,39 @@ grub_parser_split_cmdline (const char *cmdline, grub_reader_getline_t getline,
return 0;
}
+/* Helper for grub_parser_execute. */
+static grub_err_t
+grub_parser_execute_getline (char **line, int cont __attribute__ ((unused)),
+ void *data)
+{
+ char **source = data;
+ char *p;
+
+ if (!*source)
+ {
+ *line = 0;
+ return 0;
+ }
+
+ p = grub_strchr (*source, '\n');
+
+ if (p)
+ *line = grub_strndup (*source, p - *source);
+ else
+ *line = grub_strdup (*source);
+ *source = p ? p + 1 : 0;
+ return 0;
+}
+
grub_err_t
grub_parser_execute (char *source)
{
- auto grub_err_t getline (char **line, int cont);
- grub_err_t getline (char **line, int cont __attribute__ ((unused)))
- {
- char *p;
-
- if (!source)
- {
- *line = 0;
- return 0;
- }
-
- p = grub_strchr (source, '\n');
-
- if (p)
- *line = grub_strndup (source, p - source);
- else
- *line = grub_strdup (source);
- source = p ? p + 1 : 0;
- return 0;
- }
-
while (source)
{
char *line;
- getline (&line, 0);
- grub_rescue_parse_line (line, getline);
+ grub_parser_execute_getline (&line, 0, &source);
+ grub_rescue_parse_line (line, grub_parser_execute_getline, &source);
grub_free (line);
}
diff --git a/grub-core/kern/rescue_parser.c b/grub-core/kern/rescue_parser.c
index 656342d..ab3d041 100644
--- a/grub-core/kern/rescue_parser.c
+++ b/grub-core/kern/rescue_parser.c
@@ -26,14 +26,16 @@
#include <grub/i18n.h>
grub_err_t
-grub_rescue_parse_line (char *line, grub_reader_getline_t getline)
+grub_rescue_parse_line (char *line,
+ grub_reader_getline_t getline, void *getline_data)
{
char *name;
int n;
grub_command_t cmd;
char **args;
- if (grub_parser_split_cmdline (line, getline, &n, &args) || n < 0)
+ if (grub_parser_split_cmdline (line, getline, getline_data, &n, &args)
+ || n < 0)
return grub_errno;
if (n == 0)
diff --git a/grub-core/kern/rescue_reader.c b/grub-core/kern/rescue_reader.c
index 4587b94..dcd7d44 100644
--- a/grub-core/kern/rescue_reader.c
+++ b/grub-core/kern/rescue_reader.c
@@ -30,7 +30,8 @@ static char linebuf[GRUB_RESCUE_BUF_SIZE];
/* Prompt to input a command and read the line. */
static grub_err_t
-grub_rescue_read_line (char **line, int cont)
+grub_rescue_read_line (char **line, int cont,
+ void *data __attribute__ ((unused)))
{
int c;
int pos = 0;
@@ -87,11 +88,11 @@ grub_rescue_run (void)
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
- grub_rescue_read_line (&line, 0);
+ grub_rescue_read_line (&line, 0, NULL);
if (! line || line[0] == '\0')
continue;
- grub_rescue_parse_line (line, grub_rescue_read_line);
+ grub_rescue_parse_line (line, grub_rescue_read_line, NULL);
grub_free (line);
}
}
diff --git a/grub-core/normal/completion.c b/grub-core/normal/completion.c
index cae78f1..805f002 100644
--- a/grub-core/normal/completion.c
+++ b/grub-core/normal/completion.c
@@ -418,7 +418,7 @@ grub_normal_do_completion (char *buf, int *restore,
*restore = 1;
- if (grub_parser_split_cmdline (buf, 0, &argc, &argv))
+ if (grub_parser_split_cmdline (buf, 0, 0, &argc, &argv))
return 0;
if (argc == 0)
diff --git a/grub-core/normal/main.c b/grub-core/normal/main.c
index 13473ec..07f337d 100644
--- a/grub-core/normal/main.c
+++ b/grub-core/normal/main.c
@@ -134,33 +134,37 @@ grub_normal_free_menu (grub_menu_t menu)
grub_env_unset_menu ();
}
-static grub_menu_t
-read_config_file (const char *config)
+/* Helper for read_config_file. */
+static grub_err_t
+read_config_file_getline (char **line, int cont __attribute__ ((unused)),
+ void *data)
{
- grub_file_t file;
- const char *old_file, *old_dir;
- char *config_dir, *ptr = 0;
+ grub_file_t file = data;
- auto grub_err_t getline (char **line, int cont);
- grub_err_t getline (char **line, int cont __attribute__ ((unused)))
+ while (1)
{
- while (1)
- {
- char *buf;
+ char *buf;
- *line = buf = grub_file_getline (file);
- if (! buf)
- return grub_errno;
+ *line = buf = grub_file_getline (file);
+ if (! buf)
+ return grub_errno;
- if (buf[0] == '#')
- grub_free (*line);
- else
- break;
- }
-
- return GRUB_ERR_NONE;
+ if (buf[0] == '#')
+ grub_free (*line);
+ else
+ break;
}
+ return GRUB_ERR_NONE;
+}
+
+static grub_menu_t
+read_config_file (const char *config)
+{
+ grub_file_t file;
+ const char *old_file, *old_dir;
+ char *config_dir, *ptr = 0;
+
grub_menu_t newmenu;
newmenu = grub_env_get_menu ();
@@ -199,10 +203,10 @@ read_config_file (const char *config)
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
- if ((getline (&line, 0)) || (! line))
+ if ((read_config_file_getline (&line, 0, file)) || (! line))
break;
- grub_normal_parse_line (line, getline);
+ grub_normal_parse_line (line, read_config_file_getline, file);
grub_free (line);
}
@@ -427,7 +431,8 @@ grub_normal_read_line_real (char **line, int cont, int nested)
}
static grub_err_t
-grub_normal_read_line (char **line, int cont)
+grub_normal_read_line (char **line, int cont,
+ void *data __attribute__ ((unused)))
{
return grub_normal_read_line_real (line, cont, 0);
}
@@ -463,7 +468,7 @@ grub_cmdline_run (int nested)
if (! line)
break;
- grub_normal_parse_line (line, grub_normal_read_line);
+ grub_normal_parse_line (line, grub_normal_read_line, NULL);
grub_free (line);
}
}
diff --git a/grub-core/script/execute.c b/grub-core/script/execute.c
index b5e6eb0..6619c2e 100644
--- a/grub-core/script/execute.c
+++ b/grub-core/script/execute.c
@@ -783,6 +783,31 @@ grub_script_function_call (grub_script_function_t func, int argc, char **args)
return ret;
}
+/* Helper for grub_script_execute_sourcecode. */
+static grub_err_t
+grub_script_execute_sourcecode_getline (char **line,
+ int cont __attribute__ ((unused)),
+ void *data)
+{
+ const char **source = data;
+ const char *p;
+
+ if (! *source)
+ {
+ *line = 0;
+ return 0;
+ }
+
+ p = grub_strchr (*source, '\n');
+
+ if (p)
+ *line = grub_strndup (*source, p - *source);
+ else
+ *line = grub_strdup (*source);
+ *source = p ? p + 1 : 0;
+ return 0;
+}
+
/* Execute a source script. */
grub_err_t
grub_script_execute_sourcecode (const char *source, int argc, char **args)
@@ -792,27 +817,6 @@ grub_script_execute_sourcecode (const char *source, int argc, char **args)
struct grub_script_scope new_scope;
struct grub_script_scope *old_scope;
- auto grub_err_t getline (char **line, int cont);
- grub_err_t getline (char **line, int cont __attribute__ ((unused)))
- {
- const char *p;
-
- if (! source)
- {
- *line = 0;
- return 0;
- }
-
- p = grub_strchr (source, '\n');
-
- if (p)
- *line = grub_strndup (source, p - source);
- else
- *line = grub_strdup (source);
- source = p ? p + 1 : 0;
- return 0;
- }
-
new_scope.argv.argc = argc;
new_scope.argv.args = args;
new_scope.flags = 0;
@@ -824,8 +828,9 @@ grub_script_execute_sourcecode (const char *source, int argc, char **args)
{
char *line;
- getline (&line, 0);
- parsed_script = grub_script_parse (line, getline);
+ grub_script_execute_sourcecode_getline (&line, 0, &source);
+ parsed_script = grub_script_parse
+ (line, grub_script_execute_sourcecode_getline, &source);
if (! parsed_script)
{
ret = grub_errno;
diff --git a/grub-core/script/lexer.c b/grub-core/script/lexer.c
index 396d512..cb9d6b0 100644
--- a/grub-core/script/lexer.c
+++ b/grub-core/script/lexer.c
@@ -147,7 +147,7 @@ grub_script_lexer_yywrap (struct grub_parser_param *parserstate,
line = 0;
if (! input)
- lexerstate->getline (&line, 1);
+ lexerstate->getline (&line, 1, lexerstate->getline_data);
else
line = grub_strdup (input);
@@ -216,7 +216,7 @@ grub_script_lexer_yywrap (struct grub_parser_param *parserstate,
struct grub_lexer_param *
grub_script_lexer_init (struct grub_parser_param *parser, char *script,
- grub_reader_getline_t arg_getline)
+ grub_reader_getline_t getline, void *getline_data)
{
struct grub_lexer_param *lexerstate;
@@ -232,7 +232,10 @@ grub_script_lexer_init (struct grub_parser_param *parser, char *script,
return 0;
}
- lexerstate->getline = arg_getline; /* rest are all zeros already */
+ lexerstate->getline = getline;
+ lexerstate->getline_data = getline_data;
+ /* The other elements of lexerstate are all zeros already. */
+
if (yylex_init (&lexerstate->yyscanner))
{
grub_free (lexerstate->text);
diff --git a/grub-core/script/main.c b/grub-core/script/main.c
index aa24d16..854a25a 100644
--- a/grub-core/script/main.c
+++ b/grub-core/script/main.c
@@ -22,12 +22,13 @@
#include <grub/script_sh.h>
grub_err_t
-grub_normal_parse_line (char *line, grub_reader_getline_t getline)
+grub_normal_parse_line (char *line,
+ grub_reader_getline_t getline, void *getline_data)
{
struct grub_script *parsed_script;
/* Parse the script. */
- parsed_script = grub_script_parse (line, getline);
+ parsed_script = grub_script_parse (line, getline, getline_data);
if (parsed_script)
{
diff --git a/grub-core/script/script.c b/grub-core/script/script.c
index ad30183..ec4d433 100644
--- a/grub-core/script/script.c
+++ b/grub-core/script/script.c
@@ -340,7 +340,8 @@ grub_script_create (struct grub_script_cmd *cmd, struct grub_script_mem *mem)
/* Parse the script passed in SCRIPT and return the parsed
datastructure that is ready to be interpreted. */
struct grub_script *
-grub_script_parse (char *script, grub_reader_getline_t getline)
+grub_script_parse (char *script,
+ grub_reader_getline_t getline, void *getline_data)
{
struct grub_script *parsed;
struct grub_script_mem *membackup;
@@ -359,7 +360,8 @@ grub_script_parse (char *script, grub_reader_getline_t getline)
}
/* Initialize the lexer. */
- lexstate = grub_script_lexer_init (parsestate, script, getline);
+ lexstate = grub_script_lexer_init (parsestate, script,
+ getline, getline_data);
if (!lexstate)
{
grub_free (parsed);
diff --git a/include/grub/parser.h b/include/grub/parser.h
index de4da05..bf9c7c6 100644
--- a/include/grub/parser.h
+++ b/include/grub/parser.h
@@ -63,6 +63,7 @@ EXPORT_FUNC (grub_parser_cmdline_state) (grub_parser_state_t state,
grub_err_t
EXPORT_FUNC (grub_parser_split_cmdline) (const char *cmdline,
grub_reader_getline_t getline,
+ void *getline_data,
int *argc, char ***argv);
struct grub_parser
@@ -79,13 +80,15 @@ struct grub_parser
/* Clean up the parser. */
grub_err_t (*fini) (void);
- grub_err_t (*parse_line) (char *line, grub_reader_getline_t getline);
+ grub_err_t (*parse_line) (char *line,
+ grub_reader_getline_t getline, void *getline_data);
};
typedef struct grub_parser *grub_parser_t;
grub_err_t grub_parser_execute (char *source);
grub_err_t
-grub_rescue_parse_line (char *line, grub_reader_getline_t getline);
+grub_rescue_parse_line (char *line,
+ grub_reader_getline_t getline, void *getline_data);
#endif /* ! GRUB_PARSER_HEADER */
diff --git a/include/grub/reader.h b/include/grub/reader.h
index cd92df8..fd86b20 100644
--- a/include/grub/reader.h
+++ b/include/grub/reader.h
@@ -22,7 +22,7 @@
#include <grub/err.h>
-typedef grub_err_t (*grub_reader_getline_t) (char **, int);
+typedef grub_err_t (*grub_reader_getline_t) (char **, int, void *);
void grub_rescue_run (void) __attribute__ ((noreturn));
diff --git a/include/grub/script_sh.h b/include/grub/script_sh.h
index d99cbf7..78602e4 100644
--- a/include/grub/script_sh.h
+++ b/include/grub/script_sh.h
@@ -161,6 +161,9 @@ struct grub_lexer_param
expected, but not available. */
grub_reader_getline_t getline;
+ /* Caller-supplied data passed to `getline'. */
+ void *getline_data;
+
/* A reference counter. If this is >0 it means that the parser
expects more tokens and `getline' should be called to fetch more.
Otherwise the lexer can stop processing if the current buffer is
@@ -287,14 +290,16 @@ grub_script_arg_add (struct grub_parser_param *state,
grub_script_arg_type_t type, char *str);
struct grub_script *grub_script_parse (char *script,
- grub_reader_getline_t getline);
+ grub_reader_getline_t getline,
+ void *getline_data);
void grub_script_free (struct grub_script *script);
struct grub_script *grub_script_create (struct grub_script_cmd *cmd,
struct grub_script_mem *mem);
struct grub_lexer_param *grub_script_lexer_init (struct grub_parser_param *parser,
char *script,
- grub_reader_getline_t getline);
+ grub_reader_getline_t getline,
+ void *getline_data);
void grub_script_lexer_fini (struct grub_lexer_param *);
void grub_script_lexer_ref (struct grub_lexer_param *);
void grub_script_lexer_deref (struct grub_lexer_param *);
@@ -380,7 +385,8 @@ char **
grub_script_execute_arglist_to_argv (struct grub_script_arglist *arglist, int *count);
grub_err_t
-grub_normal_parse_line (char *line, grub_reader_getline_t getline);
+grub_normal_parse_line (char *line,
+ grub_reader_getline_t getline, void *getline_data);
static inline struct grub_script *
grub_script_ref (struct grub_script *script)
diff --git a/util/grub-script-check.c b/util/grub-script-check.c
index 73d51f0..203a3ff 100644
--- a/util/grub-script-check.c
+++ b/util/grub-script-check.c
@@ -85,81 +85,92 @@ static struct argp argp = {
NULL, NULL, NULL
};
+/* Context for main. */
+struct main_ctx
+{
+ int lineno;
+ FILE *file;
+ struct arguments arguments;
+};
+
+/* Helper for main. */
+static grub_err_t
+get_config_line (char **line, int cont __attribute__ ((unused)), void *data)
+{
+ struct main_ctx *ctx = data;
+ int i;
+ char *cmdline = 0;
+ size_t len = 0;
+ ssize_t curread;
+
+ curread = getline (&cmdline, &len, (ctx->file ?: stdin));
+ if (curread == -1)
+ {
+ *line = 0;
+ grub_errno = GRUB_ERR_READ_ERROR;
+
+ if (cmdline)
+ free (cmdline);
+ return grub_errno;
+ }
+
+ if (ctx->arguments.verbose)
+ grub_printf ("%s", cmdline);
+
+ for (i = 0; cmdline[i] != '\0'; i++)
+ {
+ /* Replace tabs and carriage returns with spaces. */
+ if (cmdline[i] == '\t' || cmdline[i] == '\r')
+ cmdline[i] = ' ';
+
+ /* Replace '\n' with '\0'. */
+ if (cmdline[i] == '\n')
+ cmdline[i] = '\0';
+ }
+
+ ctx->lineno++;
+ *line = grub_strdup (cmdline);
+
+ free (cmdline);
+ return 0;
+}
+
int
main (int argc, char *argv[])
{
+ struct main_ctx ctx = {
+ .lineno = 0,
+ .file = 0
+ };
char *input;
- int lineno = 0;
- FILE *file = 0;
- struct arguments arguments;
int found_input = 0;
struct grub_script *script = NULL;
- auto grub_err_t get_config_line (char **line, int cont);
- grub_err_t get_config_line (char **line, int cont __attribute__ ((unused)))
- {
- int i;
- char *cmdline = 0;
- size_t len = 0;
- ssize_t curread;
-
- curread = getline(&cmdline, &len, (file ?: stdin));
- if (curread == -1)
- {
- *line = 0;
- grub_errno = GRUB_ERR_READ_ERROR;
-
- if (cmdline)
- free (cmdline);
- return grub_errno;
- }
-
- if (arguments.verbose)
- grub_printf("%s", cmdline);
-
- for (i = 0; cmdline[i] != '\0'; i++)
- {
- /* Replace tabs and carriage returns with spaces. */
- if (cmdline[i] == '\t' || cmdline[i] == '\r')
- cmdline[i] = ' ';
-
- /* Replace '\n' with '\0'. */
- if (cmdline[i] == '\n')
- cmdline[i] = '\0';
- }
-
- lineno++;
- *line = grub_strdup (cmdline);
-
- free (cmdline);
- return 0;
- }
-
set_program_name (argv[0]);
grub_util_init_nls ();
- memset (&arguments, 0, sizeof (struct arguments));
+ memset (&ctx.arguments, 0, sizeof (struct arguments));
/* Check for options. */
- if (argp_parse (&argp, argc, argv, 0, 0, &arguments) != 0)
+ if (argp_parse (&argp, argc, argv, 0, 0, &ctx.arguments) != 0)
{
fprintf (stderr, "%s", _("Error in parsing command line arguments\n"));
exit(1);
}
/* Obtain ARGUMENT. */
- if (!arguments.filename)
+ if (!ctx.arguments.filename)
{
- file = 0; /* read from stdin */
+ ctx.file = 0; /* read from stdin */
}
else
{
- file = fopen (arguments.filename, "r");
- if (! file)
+ ctx.file = fopen (ctx.arguments.filename, "r");
+ if (! ctx.file)
{
char *program = xstrdup(program_name);
fprintf (stderr, "%s: %s: %s\n", program_name,
- arguments.filename, strerror(errno));
+ ctx.arguments.filename, strerror (errno));
argp_help (&argp, stderr, ARGP_HELP_STD_USAGE, program);
free(program);
exit(1);
@@ -169,12 +180,12 @@ main (int argc, char *argv[])
do
{
input = 0;
- get_config_line(&input, 0);
+ get_config_line (&input, 0, &ctx);
if (! input)
break;
found_input = 1;
- script = grub_script_parse (input, get_config_line);
+ script = grub_script_parse (input, get_config_line, &ctx);
if (script)
{
grub_script_execute (script);
@@ -184,11 +195,11 @@ main (int argc, char *argv[])
grub_free (input);
} while (script != 0);
- if (file) fclose (file);
+ if (ctx.file) fclose (ctx.file);
if (found_input && script == 0)
{
- fprintf (stderr, _("Syntax error at line %u\n"), lineno);
+ fprintf (stderr, _("Syntax error at line %u\n"), ctx.lineno);
return 1;
}
--
1.8.2.1
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