diff options
author | Peter Wu <peter@lekensteyn.nl> | 2014-07-06 15:34:38 +0200 |
---|---|---|
committer | Evan Huus <eapache@gmail.com> | 2014-07-06 23:00:40 +0000 |
commit | f2b4daf4005d60eef7e34e2e6ebf4fe487d3c255 (patch) | |
tree | 1fac15d7bcbc381c5e0a3a6602e7edd20e574e39 /epan/to_str.h | |
parent | ec6a22dc3ba8e2d438b34d892d6a40e1be2a28f2 (diff) |
Add printf-format annotations, fix garbage
The WRETH dissector showed up some garbage in the column display. Upon
further inspection, it turns out that the format string had a trailing
percent sign which caused (unsigned)-1 to be returned by
g_printf_string_upper_bound (in emem_strdup_vprintf). Then ep_alloc is
called with (unsigned)-1 + 1 = 0 memory, no wonder that garbage shows
up. ASAN could not even catch this error because EP is in charge of
this.
So, start adding G_GNUC_PRINTF annotations in each header that uses
the "fmt" or "format" paramters (grepped + awk). This revealed some
other errors. The NCP2222 dissector was missing a format string (not
a security vuln though).
Many dissectors used val_to_str with a constant (but empty) string,
these have been replaced by val_to_str_const. ASN.1 dissectors
were regenerated for this.
Minor: the mate plugin used "%X" instead of "%p" for a pointer type.
The ncp2222 dissector and wimax plugin gained modelines.
Change-Id: I7f3f6a3136116f9b251719830a39a7b21646f622
Reviewed-on: https://code.wireshark.org/review/2881
Reviewed-by: Evan Huus <eapache@gmail.com>
Diffstat (limited to 'epan/to_str.h')
-rw-r--r-- | epan/to_str.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/epan/to_str.h b/epan/to_str.h index 9b3880c342..6d180dba44 100644 --- a/epan/to_str.h +++ b/epan/to_str.h @@ -99,7 +99,7 @@ WS_DLL_PUBLIC char *other_decode_bitfield_value(char *buf, const guint32 val, co WS_DLL_PUBLIC char *decode_bitfield_value(char *buf, const guint32 val, const guint32 mask, const int width); WS_DLL_PUBLIC const char *decode_numeric_bitfield(const guint32 val, const guint32 mask, const int width, - const char *fmt); + const char *fmt) G_GNUC_PRINTF(4, 0); WS_DLL_PUBLIC const gchar* port_type_to_str (port_type type); |