diff options
Diffstat (limited to 'util-misc')
-rw-r--r-- | util-misc/apr_rmm.c | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/util-misc/apr_rmm.c b/util-misc/apr_rmm.c index e90be1e7c..91e30885f 100644 --- a/util-misc/apr_rmm.c +++ b/util-misc/apr_rmm.c @@ -306,13 +306,17 @@ APR_DECLARE(apr_status_t) apr_rmm_detach(apr_rmm_t *rmm) APR_DECLARE(apr_rmm_off_t) apr_rmm_malloc(apr_rmm_t *rmm, apr_size_t reqsize) { + apr_size_t size; apr_rmm_off_t this; - reqsize = APR_ALIGN_DEFAULT(reqsize) + RMM_BLOCK_SIZE; + size = APR_ALIGN_DEFAULT(reqsize) + RMM_BLOCK_SIZE; + if (size < reqsize) { + return 0; + } APR_ANYLOCK_LOCK(&rmm->lock); - this = find_block_of_size(rmm, reqsize); + this = find_block_of_size(rmm, size); if (this) { move_block(rmm, this, 0); @@ -325,18 +329,22 @@ APR_DECLARE(apr_rmm_off_t) apr_rmm_malloc(apr_rmm_t *rmm, apr_size_t reqsize) APR_DECLARE(apr_rmm_off_t) apr_rmm_calloc(apr_rmm_t *rmm, apr_size_t reqsize) { + apr_size_t size; apr_rmm_off_t this; - reqsize = APR_ALIGN_DEFAULT(reqsize) + RMM_BLOCK_SIZE; + size = APR_ALIGN_DEFAULT(reqsize) + RMM_BLOCK_SIZE; + if (size < reqsize) { + return 0; + } APR_ANYLOCK_LOCK(&rmm->lock); - this = find_block_of_size(rmm, reqsize); + this = find_block_of_size(rmm, size); if (this) { move_block(rmm, this, 0); this += RMM_BLOCK_SIZE; - memset((char*)rmm->base + this, 0, reqsize - RMM_BLOCK_SIZE); + memset((char*)rmm->base + this, 0, size - RMM_BLOCK_SIZE); } APR_ANYLOCK_UNLOCK(&rmm->lock); @@ -349,16 +357,19 @@ APR_DECLARE(apr_rmm_off_t) apr_rmm_realloc(apr_rmm_t *rmm, void *entity, apr_rmm_off_t this; apr_rmm_off_t old; struct rmm_block_t *blk; - apr_size_t oldsize; + apr_size_t size, oldsize; if (!entity) { return apr_rmm_malloc(rmm, reqsize); } - reqsize = APR_ALIGN_DEFAULT(reqsize); + size = APR_ALIGN_DEFAULT(reqsize); + if (size < reqsize) { + return 0; + } old = apr_rmm_offset_get(rmm, entity); - if ((this = apr_rmm_malloc(rmm, reqsize)) == 0) { + if ((this = apr_rmm_malloc(rmm, size)) == 0) { return 0; } @@ -366,7 +377,7 @@ APR_DECLARE(apr_rmm_off_t) apr_rmm_realloc(apr_rmm_t *rmm, void *entity, oldsize = blk->size; memcpy(apr_rmm_addr_get(rmm, this), - apr_rmm_addr_get(rmm, old), oldsize < reqsize ? oldsize : reqsize); + apr_rmm_addr_get(rmm, old), oldsize < size ? oldsize : size); apr_rmm_free(rmm, old); return this; |