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libpwdgrp: reinstate Tito's optional atexit freeing

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2015-01-03 16:09:05 +01:00
parent 8d547aca75
commit 9dca6acaac
1 changed files with 15 additions and 0 deletions
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15
libpwdgrp/pwd_grp.c
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@ -117,6 +117,18 @@ static struct statics *ptr_to_statics;
#define S (*ptr_to_statics)
#define has_S (ptr_to_statics)
#if ENABLE_FEATURE_CLEAN_UP
static void free_static(void)
{
free(S.db[0].malloced);
free(S.db[1].malloced);
# if ENABLE_USE_BB_SHADOW
S.db[2].malloced);
# endif
free(ptr_to_statics);
}
#endif
static struct statics *get_S(void)
{
if (!ptr_to_statics) {
@ -125,6 +137,9 @@ static struct statics *get_S(void)
memcpy(&S.db[1], &const_gr_db, sizeof(const_gr_db));
#if ENABLE_USE_BB_SHADOW
memcpy(&S.db[2], &const_sp_db, sizeof(const_sp_db));
#endif
#if ENABLE_FEATURE_CLEAN_UP
atexit(free_static);
#endif
}
return ptr_to_statics;