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| author | Thomas Habets <habets@google.com> | 2021-12-26 15:08:21 +0000 |
|---|---|---|
| committer | Thomas Habets <habets@google.com> | 2021-12-26 15:08:21 +0000 |
| commit | 4913439345c8e02492c17b5741d6a684d5cde0fe (patch) | |
| tree | 829b958c1607e8afd73845199d92e4b4f5ea1785 | |
| parent | d0133a4971494238aa2cfe5ecf5fab18f0f23e2d (diff) | |
| download | arping-4913439345c8e02492c17b5741d6a684d5cde0fe.tar.gz | |
Don't show seccomp help if it not compiled in
| -rw-r--r-- | src/arping.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/src/arping.c b/src/arping.c index 1844c67..4214175 100644 --- a/src/arping.c +++ b/src/arping.c @@ -126,6 +126,8 @@ #if defined(HAVE_SECCOMP_H) && defined(HAVE_LIBSECCOMP) #define USE_SECCOMP 1 #include <seccomp.h> +#else +#define USE_SECCOMP 0 #endif #include "arping.h" @@ -473,7 +475,7 @@ drop_privileges(const char* drop_group) #endif } -#ifdef USE_SECCOMP +#if USE_SECCOMP static void seccomp_allow(scmp_filter_ctx ctx, const char* name) { if (seccomp_rule_add(ctx, SCMP_ACT_ALLOW, seccomp_syscall_resolve_name(name), 0)) { @@ -550,7 +552,7 @@ drop_more_privileges(int libnet_fd) printf("arping: Successfully pledged\n"); } #endif -#ifdef USE_SECCOMP +#if USE_SECCOMP if (use_seccomp) { drop_seccomp(libnet_fd); } @@ -906,10 +908,13 @@ extended_usage() " -w sec Specify a timeout before ping exits regardless of how" " many\npackets have been sent or received.\n" " -W sec Time to wait between pings.\n" +#if USE_SECCOMP " -z Enable seccomp%s\n" " -Z Disable seccomp%s\n", DEFAULT_SECCOMP ? " (default)" : "", - DEFAULT_SECCOMP ? "" : " (default)"); + DEFAULT_SECCOMP ? "" : " (default)" +#endif + ); printf("Report bugs to: thomas@habets.se\n" "Arping home page: <http://www.habets.pp.se/synscan/>\n" "Development repo: http://github.com/ThomasHabets/arping\n"); @@ -923,7 +928,7 @@ standard_usage() { printf("ARPing %s, by Thomas Habets <thomas@habets.se>\n", version); - printf("usage: arping [ -0aAbdDeFpPqrRuUvzZ ] [ -w <sec> ] " + printf("usage: arping [ -0aAbdDeFpPqrRuUv%s ] [ -w <sec> ] " "[ -W <sec> ] " "[ -S <host/ip> ]\n" " " @@ -934,7 +939,7 @@ standard_usage() " [ -g <group> ]\n" " " "[ -V <vlan> ] [ -Q <priority> ] " - "<host/ip/MAC | -B>\n"); + "<host/ip/MAC | -B>\n", USE_SECCOMP ? "zZ" : ""); } /** |