tvb_length_remaining() can return -1, so don't assign its return value to an unsigned integer. Fixes Coverity CID's 280233 and 280234.
svn path=/trunk/; revision=43697
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@ -1244,7 +1244,7 @@ get_user_assoc(tvbuff_t* engine_tvb, tvbuff_t* user_tvb)
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static gboolean
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snmp_usm_auth_md5(snmp_usm_params_t* p, guint8** calc_auth_p, guint* calc_auth_len_p, gchar const** error)
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{
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guint msg_len;
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gint msg_len;
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guint8* msg;
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guint auth_len;
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guint8* auth;
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@ -1308,7 +1308,7 @@ snmp_usm_auth_md5(snmp_usm_params_t* p, guint8** calc_auth_p, guint* calc_auth_l
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static gboolean
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snmp_usm_auth_sha1(snmp_usm_params_t* p _U_, guint8** calc_auth_p, guint* calc_auth_len_p, gchar const** error _U_)
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{
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guint msg_len;
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gint msg_len;
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guint8* msg;
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guint auth_len;
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guint8* auth;
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