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| author | Anton Vorobev <[email protected]> | 2011-11-08 19:28:00 +0100 |
|---|---|---|
| committer | Henrik Nord <[email protected]> | 2011-11-15 11:31:04 +0100 |
| commit | a95ebdd1232122d168931f55c9863960316576e2 (patch) | |
| tree | 99ce03126cd93e82121355acbfed26952c0d4f27 /lib/os_mon/c_src/memsup.c | |
| parent | 6acdb64f208e26d78c7f55e6206b75b948e63daa (diff) | |
| download | otp-a95ebdd1232122d168931f55c9863960316576e2.tar.gz otp-a95ebdd1232122d168931f55c9863960316576e2.tar.bz2 otp-a95ebdd1232122d168931f55c9863960316576e2.zip | |
Fix segmentation fault in memsup
when /proc/meminfo does not include information about
buffers/cache (for instance inside OpenVZ container)
Diffstat (limited to 'lib/os_mon/c_src/memsup.c')
| -rw-r--r-- | lib/os_mon/c_src/memsup.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/lib/os_mon/c_src/memsup.c b/lib/os_mon/c_src/memsup.c index 241e7718db..b6e417eaa0 100644 --- a/lib/os_mon/c_src/memsup.c +++ b/lib/os_mon/c_src/memsup.c @@ -327,27 +327,27 @@ get_mem_procfs(memory_ext *me){ /* Total and free is NEEDED! */ bp = strstr(buffer, "MemTotal:"); - if (sscanf(bp, "MemTotal: %lu kB\n", &(me->total))) me->flag |= F_MEM_TOTAL; + if (bp != NULL && sscanf(bp, "MemTotal: %lu kB\n", &(me->total))) me->flag |= F_MEM_TOTAL; bp = strstr(buffer, "MemFree:"); - if (sscanf(bp, "MemFree: %lu kB\n", &(me->free))) me->flag |= F_MEM_FREE; + if (bp != NULL && sscanf(bp, "MemFree: %lu kB\n", &(me->free))) me->flag |= F_MEM_FREE; /* Extensions */ bp = strstr(buffer, "Buffers:"); - if (sscanf(bp, "Buffers: %lu kB\n", &(me->buffered))) me->flag |= F_MEM_BUFFERS; + if (bp != NULL && sscanf(bp, "Buffers: %lu kB\n", &(me->buffered))) me->flag |= F_MEM_BUFFERS; bp = strstr(buffer, "Cached:"); - if (sscanf(bp, "Cached: %lu kB\n", &(me->cached))) me->flag |= F_MEM_CACHED; + if (bp != NULL && sscanf(bp, "Cached: %lu kB\n", &(me->cached))) me->flag |= F_MEM_CACHED; /* Swap */ bp = strstr(buffer, "SwapTotal:"); - if (sscanf(bp, "SwapTotal: %lu kB\n", &(me->total_swap))) me->flag |= F_SWAP_TOTAL; + if (bp != NULL && sscanf(bp, "SwapTotal: %lu kB\n", &(me->total_swap))) me->flag |= F_SWAP_TOTAL; bp = strstr(buffer, "SwapFree:"); - if (sscanf(bp, "SwapFree: %lu kB\n", &(me->free_swap))) me->flag |= F_SWAP_FREE; + if (bp != NULL && sscanf(bp, "SwapFree: %lu kB\n", &(me->free_swap))) me->flag |= F_SWAP_FREE; me->pagesize = 1024; /* procfs defines its size in kB */ |