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authorAndreas Schneider <asn@cryptomilk.org>2015-02-02 14:14:12 +0100
committerAndreas Schneider <asn@cryptomilk.org>2015-02-02 17:32:18 +0100
commitafc9988c933ed74bd4c302d685f1b4d7e1960aab (patch)
tree193217bca85659535b0a5d5c9df47eca8844d2f1 /include/libssh/priv.h
parent2490404d4505ca49e2f8eb7914bb0b1e2d64db8d (diff)
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buffer: Improve argument checking in ssh_buffer_pack()
Signed-off-by: Andreas Schneider <asn@cryptomilk.org> Reviewed-by: Aris Adamantiadis <aris@0xbadc0de.be>
Diffstat (limited to 'include/libssh/priv.h')
-rw-r--r--include/libssh/priv.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/include/libssh/priv.h b/include/libssh/priv.h
index 0e3bab5b..4adcf898 100644
--- a/include/libssh/priv.h
+++ b/include/libssh/priv.h
@@ -301,5 +301,29 @@ int match_hostname(const char *host, const char *pattern, unsigned int len);
*/
#define discard_const_p(type, ptr) ((type *)discard_const(ptr))
+/**
+ * Get the argument cound of variadic arguments
+ */
+#define __VA_NARG__(...) \
+ (__VA_NARG_(_0, ## __VA_ARGS__, __RSEQ_N()) - 1)
+#define __VA_NARG_(...) \
+ __VA_ARG_N(__VA_ARGS__)
+#define __VA_ARG_N( \
+ _1, _2, _3, _4, _5, _6, _7, _8, _9,_10, \
+ _11,_12,_13,_14,_15,_16,_17,_18,_19,_20, \
+ _21,_22,_23,_24,_25,_26,_27,_28,_29,_30, \
+ _31,_32,_33,_34,_35,_36,_37,_38,_39,_40, \
+ _41,_42,_43,_44,_45,_46,_47,_48,_49,_50, \
+ _51,_52,_53,_54,_55,_56,_57,_58,_59,_60, \
+ _61,_62,_63,N,...) N
+#define __RSEQ_N() \
+ 63, 62, 61, 60, \
+ 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, \
+ 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, \
+ 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, \
+ 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, \
+ 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, \
+ 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
+
#endif /* _LIBSSH_PRIV_H */
/* vim: set ts=4 sw=4 et cindent: */