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author | Thomas Haller <thaller@redhat.com> | 2018-09-06 14:17:22 +0200 |
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committer | Thomas Haller <thaller@redhat.com> | 2018-09-07 11:24:17 +0200 |
commit | 0feeeaac636e39e724a2b3dc848b0fe12858d859 (patch) | |
tree | 2b97233fe6b555670bc0713758634e91a131917d | |
parent | 085a3694463caf2c7a8e214fea351353c66dbad4 (diff) | |
download | NetworkManager-0feeeaac636e39e724a2b3dc848b0fe12858d859.tar.gz |
shared: add nm_utils_mem_all_zero()
-rw-r--r-- | shared/nm-utils/nm-shared-utils.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/shared/nm-utils/nm-shared-utils.h b/shared/nm-utils/nm-shared-utils.h index ce5fd9986e..778938e09c 100644 --- a/shared/nm-utils/nm-shared-utils.h +++ b/shared/nm-utils/nm-shared-utils.h @@ -190,6 +190,22 @@ nm_ip_addr_set (int addr_family, gpointer dst, const NMIPAddr *src) /*****************************************************************************/ +static inline gboolean +nm_utils_mem_all_zero (gconstpointer mem, gsize len) +{ + const guint8 *p; + + for (p = mem; len-- > 0; p++) { + if (*p != 0) + return FALSE; + } + + /* incidentally, a buffer with len==0, is also *all-zero*. */ + return TRUE; +} + +/*****************************************************************************/ + /* like g_memdup(). The difference is that the @size argument is of type * gsize, while g_memdup() has type guint. Since, the size of container types * like GArray is guint as well, this means trying to g_memdup() an |