Implement stub functionality for BSD swapctl stuff

1 files changed, 30 insertions, 9 deletions

diff --git a/plugins/check_swap.d/swap.c b/plugins/check_swap.d/swap.c
index 7703fb3e..8dc7a4cc 100644
--- a/plugins/check_swap.d/swap.c
+++ b/plugins/check_swap.d/swap.c
@@ -225,19 +225,41 @@ swap_result getSwapFromSwapCommand(swap_config config, const char swap_command[]
         return result;
 }
 
-#ifdef CHECK_SWAP_SWAPCTL_BSD
-swap_result getSwapFromSwapctl_BSD(swap_config config) {
-        int i = 0, nswaps = 0, swapctl_res = 0;
-        struct swapent *ent;
+#ifndef CHECK_SWAP_SWAPCTL_BSD
+#define CHECK_SWAP_SWAPCTL_BSD
+
+// Stub functionality for BSD stuff, so the compiler always sees the following BSD code
+
+#define SWAP_NSWAP 0
+#define SWAP_STATS 1
+
+int swapctl(int cmd, const void *arg, int misc) {
+        (void) cmd;
+        (void) arg;
+        (void) misc;
+        return 512;
+}
+
+struct swapent {
+        dev_t   se_dev;                 /* device id */
+        int     se_flags;               /* entry flags */
+        int     se_nblks;               /* total blocks */
+        int     se_inuse;               /* blocks in use */
+        int     se_priority;            /* priority */
+        char    se_path[PATH_MAX];      /* path to entry */
+};
+
+#endif
 
+swap_result getSwapFromSwapctl_BSD(swap_config config) {
         /* get the number of active swap devices */
-        nswaps = swapctl(SWAP_NSWAP, NULL, 0);
+        int nswaps = swapctl(SWAP_NSWAP, NULL, 0);
 
         /* initialize swap table + entries */
-        ent = (struct swapent *)malloc(sizeof(struct swapent) * nswaps);
+        struct swapent *ent = (struct swapent *)malloc(sizeof(struct swapent) * nswaps);
 
         /* and now, tally 'em up */
-        swapctl_res = swapctl(SWAP_STATS, ent, nswaps);
+        int swapctl_res = swapctl(SWAP_STATS, ent, nswaps);
         if (swapctl_res < 0) {
                 perror(_("swapctl failed: "));
                 die(STATE_UNKNOWN, _("Error in swapctl call\n"));
@@ -247,7 +269,7 @@ swap_result getSwapFromSwapctl_BSD(swap_config config) {
         double dsktotal_mb = 0.0, dskfree_mb = 0.0, dskused_mb = 0.0;
         unsigned long long total_swap_mb = 0, free_swap_mb = 0, used_swap_mb = 0;
 
-        for (i = 0; i < nswaps; i++) {
+        for (int i = 0; i < nswaps; i++) {
                 dsktotal_mb = (float)ent[i].se_nblks / config.conversion_factor;
                 dskused_mb = (float)ent[i].se_inuse / config.conversion_factor;
                 dskfree_mb = (dsktotal_mb - dskused_mb);
@@ -279,7 +301,6 @@ swap_result getSwapFromSwapctl_BSD(swap_config config) {
 
         return result;
 }
-#endif // CHECK_SWAP_SWAPCTL_BSD
 
 #ifdef CHECK_SWAP_SWAPCTL_SVR4
 swap_result getSwapFromSwap_SRV4(swap_config config) {