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authorMichael Meskes <meskes@postgresql.org>2015-06-12 14:52:55 +0200
committerMichael Meskes <meskes@postgresql.org>2015-06-12 14:52:55 +0200
commit96ad72d1c00fa6526eb4d5e9c2a747b44752b4ee (patch)
tree255e0cc9a4611ee572c58b8bab4e8616b3b31f7a /src
parent82be1bf5099c0f6d1ef482ba3ca9cf1741db1eb3 (diff)
downloadpostgresql-96ad72d1c00fa6526eb4d5e9c2a747b44752b4ee.tar.gz
postgresql-96ad72d1c00fa6526eb4d5e9c2a747b44752b4ee.zip
Fixed some memory leaks in ECPG.
Patch by Michael Paquier
Diffstat (limited to 'src')
-rw-r--r--src/interfaces/ecpg/preproc/descriptor.c12
-rw-r--r--src/interfaces/ecpg/preproc/pgc.l4
-rw-r--r--src/interfaces/ecpg/preproc/variable.c4
3 files changed, 15 insertions, 5 deletions
diff --git a/src/interfaces/ecpg/preproc/descriptor.c b/src/interfaces/ecpg/preproc/descriptor.c
index 053a7afda86..ebd95d3c4ba 100644
--- a/src/interfaces/ecpg/preproc/descriptor.c
+++ b/src/interfaces/ecpg/preproc/descriptor.c
@@ -175,6 +175,7 @@ output_get_descr(char *desc_name, char *index)
for (results = assignments; results != NULL; results = results->next)
{
const struct variable *v = find_variable(results->variable);
+ char *str_zero = mm_strdup("0");
switch (results->value)
{
@@ -188,7 +189,8 @@ output_get_descr(char *desc_name, char *index)
break;
}
fprintf(yyout, "%s,", get_dtype(results->value));
- ECPGdump_a_type(yyout, v->name, v->type, v->brace_level, NULL, NULL, -1, NULL, NULL, mm_strdup("0"), NULL, NULL);
+ ECPGdump_a_type(yyout, v->name, v->type, v->brace_level, NULL, NULL, -1, NULL, NULL, str_zero, NULL, NULL);
+ free(str_zero);
}
drop_assignments();
fputs("ECPGd_EODT);\n", yyout);
@@ -292,8 +294,12 @@ output_set_descr(char *desc_name, char *index)
case ECPGd_indicator:
case ECPGd_length:
case ECPGd_type:
- fprintf(yyout, "%s,", get_dtype(results->value));
- ECPGdump_a_type(yyout, v->name, v->type, v->brace_level, NULL, NULL, -1, NULL, NULL, mm_strdup("0"), NULL, NULL);
+ {
+ char *str_zero = mm_strdup("0");
+ fprintf(yyout, "%s,", get_dtype(results->value));
+ ECPGdump_a_type(yyout, v->name, v->type, v->brace_level, NULL, NULL, -1, NULL, NULL, str_zero, NULL, NULL);
+ free(str_zero);
+ }
break;
default:
diff --git a/src/interfaces/ecpg/preproc/pgc.l b/src/interfaces/ecpg/preproc/pgc.l
index c70f2986962..0453409d373 100644
--- a/src/interfaces/ecpg/preproc/pgc.l
+++ b/src/interfaces/ecpg/preproc/pgc.l
@@ -27,7 +27,7 @@
extern YYSTYPE yylval;
static int xcdepth = 0; /* depth of nesting in slash-star comments */
-static char *dolqstart; /* current $foo$ quote start string */
+static char *dolqstart = NULL; /* current $foo$ quote start string */
static YY_BUFFER_STATE scanbufhandle;
static char *scanbuf;
@@ -550,6 +550,8 @@ cppline {space}*#([^i][A-Za-z]*|{if}|{ifdef}|{ifndef}|{import})(.*\\{space})*.
}
<SQL>{dolqdelim} {
token_start = yytext;
+ if (dolqstart)
+ free(dolqstart);
dolqstart = mm_strdup(yytext);
BEGIN(xdolq);
startlit();
diff --git a/src/interfaces/ecpg/preproc/variable.c b/src/interfaces/ecpg/preproc/variable.c
index 2ad7b5d255e..bb4b664b859 100644
--- a/src/interfaces/ecpg/preproc/variable.c
+++ b/src/interfaces/ecpg/preproc/variable.c
@@ -437,11 +437,13 @@ remove_variable_from_list(struct arguments ** list, struct variable * var)
void
dump_variables(struct arguments * list, int mode)
{
- char *str_zero = mm_strdup("0");
+ char *str_zero;
if (list == NULL)
return;
+ str_zero = mm_strdup("0");
+
/*
* The list is build up from the beginning so lets first dump the end of
* the list: