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authorThomas Habets <habets@google.com>2021-11-30 12:10:25 +0000
committerThomas Habets <habets@google.com>2021-11-30 12:10:25 +0000
commitfe93525db89db289178f2dbbfad92d7a88c8226a (patch)
tree74d493c4869a08dbff9c41dadfdf0108b50d62c0 /src/arping.c
parent3cad228fddc547637570b7f16090e57e4b507027 (diff)
downloadarping-fe93525db89db289178f2dbbfad92d7a88c8226a.tar.gz
Don't attempt to use caps if header doesn't exist
Termux with android seems to not provide capabilities.h, even though the libc provides it. Without the header it's not actually possible to use it though, so don't even try. There's a similar situation with getrandom(), but it's still possible to call it without a prototype, so I'm opting to just let that spit out a warning at build time on those systems. Bug #49
Diffstat (limited to 'src/arping.c')
-rw-r--r--src/arping.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/arping.c b/src/arping.c
index 5e21303..ab928aa 100644
--- a/src/arping.c
+++ b/src/arping.c
@@ -109,6 +109,13 @@
#if HAVE_SYS_CAPABILITY_H
#include <sys/capability.h>
+#else
+// It seems that some environments have a libc with cap_init, but do not have
+// the header files. Without the header files we won't have the cap_t struct, so
+// it won't actually work.
+//
+// TODO: Probably this logic should be in configure.ac instead.
+#undef HAVE_CAP_INIT
#endif
#if HAVE_NET_BPF_H