src: replace #pragma once with defines

Replace #pragma once with defines since it's not standard.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

5 files changed, 24 insertions, 5 deletions

diff --git a/src/dhcpv4.h b/src/dhcpv4.h
index 9b28059..6599acf 100644
--- a/src/dhcpv4.h
+++ b/src/dhcpv4.h
@@ -12,7 +12,9 @@
  *   GNU General Public License version 2 for more details.
  *
  */
-#pragma once
+
+#ifndef _DHCPV4_H_
+#define _DHCPV4_H_
 
 #define DHCPV4_CLIENT_PORT 68
 #define DHCPV4_SERVER_PORT 67
@@ -178,3 +180,5 @@ struct dhcpv4_dnr {
 		&opt[1] <= (struct dhcpv4_option*)(end) && \
 			&opt->data[opt->len] <= (end); \
 		opt = (struct dhcpv4_option*)&opt->data[opt->len])
+
+#endif /* _DHCPV4_H_ */
diff --git a/src/dhcpv6-pxe.h b/src/dhcpv6-pxe.h
index 0e3c227..eedba0e 100644
--- a/src/dhcpv6-pxe.h
+++ b/src/dhcpv6-pxe.h
@@ -1,4 +1,5 @@
-#pragma once
+#ifndef _DHCPV6_PXE_H_
+#define _DHCPV6_PXE_H_
 
 #include <unistd.h>
 #include <stddef.h>
@@ -11,3 +12,5 @@ const struct ipv6_pxe_entry* ipv6_pxe_of_arch(uint16_t arch);
 void ipv6_pxe_serve_boot_url(uint16_t arch, struct iovec* iov);
 void ipv6_pxe_dump(void);
 void ipv6_pxe_clear(void);
+
+#endif /* _DHCPV6_PXE_H_ */
diff --git a/src/dhcpv6.h b/src/dhcpv6.h
index 5c3986c..de0362f 100644
--- a/src/dhcpv6.h
+++ b/src/dhcpv6.h
@@ -11,7 +11,9 @@
  *   GNU General Public License version 2 for more details.
  *
  */
-#pragma once
+
+#ifndef _DHCPV6_H_
+#define _DHCPV6_H_
 
 #include "odhcpd.h"
 
@@ -168,3 +170,5 @@ struct dhcpv6_cer_id {
 		((otype) = _o[0] << 8 | _o[1]) && ((odata) = (void*)&_o[4]) &&\
 		((olen) = _o[2] << 8 | _o[3]) + (odata) <= (end); \
 		_o += 4 + (_o[2] << 8 | _o[3]))
+
+#endif /* _DHCPV6_H_ */
diff --git a/src/odhcpd.h b/src/odhcpd.h
index 6cae39d..e8cb6dd 100644
--- a/src/odhcpd.h
+++ b/src/odhcpd.h
@@ -12,7 +12,9 @@
  *
  */
 
-#pragma once
+#ifndef _ODHCPD_H_
+#define _ODHCPD_H_
+
 #include <netinet/in.h>
 #include <netinet/icmp6.h>
 #include <netinet/ether.h>
@@ -626,3 +628,5 @@ int ndp_setup_interface(struct interface *iface, bool enable);
 void reload_services(struct interface *iface);
 
 void odhcpd_reload(void);
+
+#endif /* _ODHCPD_H_ */
diff --git a/src/router.h b/src/router.h
index 9b028d1..5502a0d 100644
--- a/src/router.h
+++ b/src/router.h
@@ -12,7 +12,9 @@
  *
  */
 
-#pragma once
+#ifndef _ROUTER_H_
+#define _ROUTER_H_
+
 #include <stdint.h>
 #include <netinet/in.h>
 #include <netinet/icmp6.h>
@@ -98,3 +100,5 @@ struct icmpv6_opt {
  * use this until it is defined in netinet/icmp6.h
  */
 #define ND_OPT_PI_FLAG_PD_PREFERRED		0x10
+
+#endif /* _ROUTER_H_ */