on Haiku, illumos and Solaris the macros need <sys/sockio.h>

Signed-off-by: Afshin Paydar <[email protected]>

Author: Afshin Paydar

pcap-bpf.c

@@ -41,6 +41,17 @@
 #ifdef HAVE_SYS_IOCCOM_H
 #include <sys/ioccom.h>
 #endif
+
+/*
+ * On most supported platforms <sys/ioctl.h> also defines the SIOCGIF* macros.
+ * However, on Haiku, illumos and Solaris the macros need <sys/sockio.h>,
+ * which does not exist in AIX 7, HP-UX 11, GNU/Hurd and Linux (both GNU and
+ * musl libc).
+ */
+#if defined(HAVE_SOLARIS) || defined(__HAIKU__) || defined(__sun) || defined(__SVR4)
+#include <sys/sockio.h>
+#endif
+
 #include <sys/utsname.h>
 
 #if defined(__FreeBSD__) && defined(SIOCIFCREATE2)
@@ -654,6 +665,7 @@ check_interface_exists(const char *name, char *errbuf)
 	memset(&ifr, 0, sizeof(ifr));
 	pcapint_strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
 
+#ifdef SIOCGIFFLAGS
 	if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
 		int save_errno = errno;
 		close(fd);
@@ -669,6 +681,13 @@ check_interface_exists(const char *name, char *errbuf)
 			return PCAP_ERROR;
 		}
 	}
+#else
+	/*
+	 * SIOCGIFFLAGS not available on this platform.
+	 * We can't reliably check interface existence without privileges,
+	 * so we skip the check and let the BPF bind operation handle it.
+	 */
+#endif
 
 	close(fd);
 	return 0;