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centosstatic-linkinglibpcap

libpcap static linking in Centos 6.x

I downloaded the Libpcap-1.7.4 library . when i want to run libpcap.o and libpcap.so.1.7.4, the following errors appear:

[root@localhost libpcap-1.7.4]# ./libpcap.a
./libpcap.a: line 1: syntax error near unexpected token `newline'
./libpcap.a: line 1: `!<arch>'
[root@localhost libpcap-1.7.4]# ./libpcap.so.1.7.4 
Segmentation fault (core dumped)

Could you give me some advice about what I should do?

OS: Centos 6.x

Solution

  • Could you give me some advice about what I should do?

    Not try to run libpcap - it's a library, not a program, so you can't run it, you can only link a program with it.

    What you need to do is link a program with it, and then run the program.

    For example, if you have a C source file named small_sniffer.c, and you want to compile it and link it with libpcap, try

    gcc -o small_sniffer small_sniffer.c -lpcap

    for dynamic linking and

    gcc -static -o small_sniffer small_sniffer.c -lpcap

    to link entirely statically