[dpdk-dev] [PATCH v4 03/17] eal: fix wrong strnlen() return value in 32bit icc

[Cunming Liang]

The problem is that strnlen() here may return invalid value with 32bit icc.
(actually it returns it?s second parameter,e.g: sysconf(_SC_ARG_MAX)).
It starts to manifest hwen max_len parameter is > 2M and using icc ?m32 ?O2 (or 
above).

Suggested-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
Signed-off-by: Cunming Liang <cunming.liang at intel.com>
---
 lib/librte_eal/common/eal_common_options.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/librte_eal/common/eal_common_options.c 
b/lib/librte_eal/common/eal_common_options.c
index 29ebb6f..22d5d37 100644
--- a/lib/librte_eal/common/eal_common_options.c
+++ b/lib/librte_eal/common/eal_common_options.c
@@ -227,7 +227,7 @@ eal_parse_corelist(const char *corelist)
        /* Remove all blank characters ahead and after */
        while (isblank(*corelist))
                corelist++;
-       i = strnlen(corelist, sysconf(_SC_ARG_MAX));
+       i = strnlen(corelist, PATH_MAX);
        while ((i > 0) && isblank(corelist[i - 1]))
                i--;

@@ -469,7 +469,7 @@ eal_parse_lcores(const char *lcores)
        /* Remove all blank characters ahead and after */
        while (isblank(*lcores))
                lcores++;
-       i = strnlen(lcores, sysconf(_SC_ARG_MAX));
+       i = strnlen(lcores, PATH_MAX);
        while ((i > 0) && isblank(lcores[i - 1]))
                i--;

-- 
1.8.1.4