Require "vpi" and "vci" values to be within valid ranges.

[libpcap] / gencode.c

diff --git a/gencode.c b/gencode.c
index cdfc738e191f45d394a109ec323e38298c7c53ea..7e6fea7a16729ba869e9f2a9becaca9d3efaeff9 100644 (file)
--- a/gencode.c
+++ b/gencode.c
@@ -33,6 +33,7 @@
 #include <setjmp.h>
 #include <stdarg.h>
 #include <stdio.h>
+#include <stdint.h>
 
 #include "pcap-int.h"
 
@@ -10148,6 +10149,8 @@ gen_atmfield_code_internal(compiler_state_t *cstate, int atmfield,
                        bpf_error(cstate, "'vpi' supported only on raw ATM");
                if (cstate->off_vpi == OFFSET_NOT_SET)
                        abort();
+               if (jvalue > UINT8_MAX)
+                       bpf_error(cstate, "VPI value %u > %u", jvalue, UINT8_MAX);
                b0 = gen_ncmp(cstate, OR_LINKHDR, cstate->off_vpi, BPF_B,
                    0xffffffffU, jtype, reverse, jvalue);
                break;
@@ -10157,6 +10160,8 @@ gen_atmfield_code_internal(compiler_state_t *cstate, int atmfield,
                        bpf_error(cstate, "'vci' supported only on raw ATM");
                if (cstate->off_vci == OFFSET_NOT_SET)
                        abort();
+               if (jvalue > UINT16_MAX)
+                       bpf_error(cstate, "VCI value %u > %u", jvalue, UINT16_MAX);
                b0 = gen_ncmp(cstate, OR_LINKHDR, cstate->off_vci, BPF_H,
                    0xffffffffU, jtype, reverse, jvalue);
                break;