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Clean up ecpg's use of mmerror(): const-ify the format argument, add an

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__attribute__() marker so that gcc can validate the format string against
the actual arguments, get rid of overcomplicated and unsafe usage in
base_yyerror().
This commit is contained in:
Tom Lane 2009-06-03 20:24:51 +00:00
parent a734979e0a
commit b5c838e170
3 changed files with 10 additions and 11 deletions
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4
src/interfaces/ecpg/preproc/ecpg.header
View File

@ -1,4 +1,4 @@
/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/ecpg.header,v 1.5 2009/01/23 12:43:32 petere Exp $ */
/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/ecpg.header,v 1.6 2009/06/03 20:24:51 tgl Exp $ */
/* Copyright comment */
%{
@ -56,7 +56,7 @@ struct ECPGtype ecpg_query = {ECPGt_char_variable, NULL, NULL, {NULL}, 0};
* Handle parsing errors and warnings
*/
void
mmerror(int error_code, enum errortype type, char * error, ...)
mmerror(int error_code, enum errortype type, const char *error, ...)
{
va_list ap;

11
src/interfaces/ecpg/preproc/ecpg.trailer
View File

@ -1,4 +1,4 @@
/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/ecpg.trailer,v 1.7 2009/04/06 08:42:53 heikki Exp $ */
/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/ecpg.trailer,v 1.8 2009/06/03 20:24:51 tgl Exp $ */
statements: /*EMPTY*/
| statements statement
@ -1985,13 +1985,10 @@ ecpg_into: INTO into_list { $$ = EMPTY; }
%%
void base_yyerror(const char * error)
void base_yyerror(const char *error)
{
char buf[1024];
snprintf(buf,sizeof buf, _("%s at or near \"%s\""), error, token_start ? token_start : yytext);
buf[sizeof(buf)-1]=0;
mmerror(PARSE_ERROR, ET_ERROR, buf);
mmerror(PARSE_ERROR, ET_ERROR, "%s at or near \"%s\"",
error, token_start ? token_start : yytext);
}
void parser_init(void)

6
src/interfaces/ecpg/preproc/extern.h
View File

@ -1,4 +1,4 @@
/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/extern.h,v 1.71 2008/05/20 23:17:32 meskes Exp $ */
/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/extern.h,v 1.72 2009/06/03 20:24:51 tgl Exp $ */
#ifndef _ECPG_PREPROC_EXTERN_H
#define _ECPG_PREPROC_EXTERN_H
@ -74,7 +74,9 @@ extern int base_yylex(void);
extern void base_yyerror(const char *);
extern void *mm_alloc(size_t), *mm_realloc(void *, size_t);
extern char *mm_strdup(const char *);
extern void mmerror(int, enum errortype, char *,...);
extern void mmerror(int, enum errortype, const char *, ...)
/* This extension allows gcc to check the format string */
__attribute__((format(printf, 3, 4)));
extern void output_get_descr_header(char *);
extern void output_get_descr(char *, char *);
extern void output_set_descr_header(char *);