From: Pablo de Lara <pablo.de.lara.gua...@intel.com>

Several functions did not check if destination buffer, used
in snprintf was a non-NULL pointer.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch at intel.com>
---
 examples/cmdline/parse_obj_list.c            |    3 +++
 lib/librte_cmdline/cmdline_parse_etheraddr.c |    3 +++
 lib/librte_cmdline/cmdline_parse_num.c       |    2 +-
 lib/librte_cmdline/cmdline_parse_portlist.c  |    4 ++++
 lib/librte_eal/linuxapp/eal/eal_pci_uio.c    |    3 +++
 5 files changed, 14 insertions(+), 1 deletions(-)

diff --git a/examples/cmdline/parse_obj_list.c 
b/examples/cmdline/parse_obj_list.c
index 2625ca3..97dfa09 100644
--- a/examples/cmdline/parse_obj_list.c
+++ b/examples/cmdline/parse_obj_list.c
@@ -157,6 +157,9 @@ int complete_get_elt_obj_list(cmdline_parse_token_hdr_t *tk,
 int get_help_obj_list(__attribute__((unused)) cmdline_parse_token_hdr_t *tk,
                      char *dstbuf, unsigned int size)
 {
+       if (!dstbuf)
+               return -1;
+
        snprintf(dstbuf, size, "Obj-List");
        return 0;
 }
diff --git a/lib/librte_cmdline/cmdline_parse_etheraddr.c 
b/lib/librte_cmdline/cmdline_parse_etheraddr.c
index 5285c40..774b167 100644
--- a/lib/librte_cmdline/cmdline_parse_etheraddr.c
+++ b/lib/librte_cmdline/cmdline_parse_etheraddr.c
@@ -170,6 +170,9 @@ cmdline_get_help_etheraddr(__attribute__((unused)) 
cmdline_parse_token_hdr_t *tk
 {
        int ret;

+       if (!dstbuf)
+               return -1;
+
        ret = snprintf(dstbuf, size, "Ethernet address");
        if (ret < 0)
                return -1;
diff --git a/lib/librte_cmdline/cmdline_parse_num.c 
b/lib/librte_cmdline/cmdline_parse_num.c
index 0b9e4d0..26ba5ef 100644
--- a/lib/librte_cmdline/cmdline_parse_num.c
+++ b/lib/librte_cmdline/cmdline_parse_num.c
@@ -349,7 +349,7 @@ cmdline_get_help_num(cmdline_parse_token_hdr_t *tk, char 
*dstbuf, unsigned int s
        struct cmdline_token_num_data nd;
        int ret;

-       if (!tk)
+       if (!tk || !dstbuf)
                return -1;

        memcpy(&nd, &((struct cmdline_token_num *)tk)->num_data, sizeof(nd));
diff --git a/lib/librte_cmdline/cmdline_parse_portlist.c 
b/lib/librte_cmdline/cmdline_parse_portlist.c
index 7eac05c..8e3521a 100644
--- a/lib/librte_cmdline/cmdline_parse_portlist.c
+++ b/lib/librte_cmdline/cmdline_parse_portlist.c
@@ -163,6 +163,10 @@ cmdline_get_help_portlist(__attribute__((unused)) 
cmdline_parse_token_hdr_t *tk,
                char *dstbuf, unsigned int size)
 {
        int ret;
+
+       if (!dstbuf)
+               return -1;
+
        ret = snprintf(dstbuf, size, "range of ports as 3,4-6,8-19,20");
        if (ret < 0)
                return -1;
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c 
b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
index 7e62266..ec0ba42 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
@@ -211,6 +211,9 @@ pci_get_uio_dev(struct rte_pci_device *dev, char *dstbuf,
        DIR *dir;
        char dirname[PATH_MAX];

+       if (!dstbuf)
+               return -1;
+
        /* depending on kernel version, uio can be located in uio/uioX
         * or uio:uioX */

-- 
1.7.0.7

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