[dpdk-dev] [PATCH 01/10] mem: use strlcpy instead of snprintf

[Anatoly Burakov]

Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>
---

Notes:
    One other instance of using snprintf is left alone as
    it is expected to be addressed by another patch [1].
    
    [1] http://dpdk.org/dev/patchwork/patch/38301/

 lib/librte_eal/bsdapp/eal/eal_hugepage_info.c | 2 +-
 lib/librte_eal/common/eal_common_memalloc.c   | 5 +++--
 lib/librte_eal/linuxapp/eal/eal_memory.c      | 4 ++--
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/lib/librte_eal/bsdapp/eal/eal_hugepage_info.c b/lib/librte_eal/bsdapp/eal/eal_hugepage_info.c
index 38d143c..836feb6 100644
--- a/lib/librte_eal/bsdapp/eal/eal_hugepage_info.c
+++ b/lib/librte_eal/bsdapp/eal/eal_hugepage_info.c
@@ -96,7 +96,7 @@ eal_hugepage_info_init(void)
 		RTE_LOG(INFO, EAL, "Contigmem driver has %d buffers, each of size %dKB\n",
 				num_buffers, (int)(buffer_size>>10));
 
-	snprintf(hpi->hugedir, sizeof(hpi->hugedir), "%s", CONTIGMEM_DEV);
+	strlcpy(hpi->hugedir, CONTIGMEM_DEV, sizeof(hpi->hugedir));
 	hpi->hugepage_sz = buffer_size;
 	hpi->num_pages[0] = num_buffers;
 	hpi->lock_descriptor = fd;
diff --git a/lib/librte_eal/common/eal_common_memalloc.c b/lib/librte_eal/common/eal_common_memalloc.c
index 49fd53c..e983688 100644
--- a/lib/librte_eal/common/eal_common_memalloc.c
+++ b/lib/librte_eal/common/eal_common_memalloc.c
@@ -10,6 +10,7 @@
 #include <rte_memzone.h>
 #include <rte_memory.h>
 #include <rte_eal_memconfig.h>
+#include <rte_string_fns.h>
 #include <rte_rwlock.h>
 
 #include "eal_private.h"
@@ -179,7 +180,7 @@ eal_memalloc_mem_event_callback_register(const char *name,
 
 	/* callback successfully created and is valid, add it to the list */
 	entry->clb = clb;
-	snprintf(entry->name, RTE_MEM_EVENT_CALLBACK_NAME_LEN, "%s", name);
+	strlcpy(entry->name, name, RTE_MEM_EVENT_CALLBACK_NAME_LEN);
 	TAILQ_INSERT_TAIL(&mem_event_callback_list, entry, next);
 
 	ret = 0;
@@ -284,7 +285,7 @@ eal_memalloc_mem_alloc_validator_register(const char *name,
 	entry->clb = clb;
 	entry->socket_id = socket_id;
 	entry->limit = limit;
-	snprintf(entry->name, RTE_MEM_ALLOC_VALIDATOR_NAME_LEN, "%s", name);
+	strlcpy(entry->name, name, RTE_MEM_ALLOC_VALIDATOR_NAME_LEN);
 	TAILQ_INSERT_TAIL(&mem_alloc_validator_list, entry, next);
 
 	ret = 0;
diff --git a/lib/librte_eal/linuxapp/eal/eal_memory.c b/lib/librte_eal/linuxapp/eal/eal_memory.c
index b7a2e95..391b0de 100644
--- a/lib/librte_eal/linuxapp/eal/eal_memory.c
+++ b/lib/librte_eal/linuxapp/eal/eal_memory.c
@@ -1160,8 +1160,8 @@ calc_num_pages_per_socket(uint64_t * memory,
 	for (socket = 0; socket < RTE_MAX_NUMA_NODES && total_mem != 0; socket++) {
 		/* skips if the memory on specific socket wasn't requested */
 		for (i = 0; i < num_hp_info && memory[socket] != 0; i++){
-			snprintf(hp_used[i].hugedir, sizeof(hp_used[i].hugedir),
-					"%s", hp_info[i].hugedir);
+			strlcpy(hp_used[i].hugedir, hp_info[i].hugedir,
+					sizeof(hp_used[i].hugedir));
 			hp_used[i].num_pages[socket] = RTE_MIN(
 					memory[socket] / hp_info[i].hugepage_sz,
 					hp_info[i].num_pages[socket]);
-- 
2.7.4