orte: fixup hostname max length usage

Also removes orte specific max hostname value.

Signed-off-by: Karol Mroz <mroz.karol@gmail.com>

orte/mca/oob/alps/oob_alps_component.c

@@ -194,15 +194,14 @@ static int component_send(orte_rml_send_t *msg)
 static char* component_get_addr(void)
 {
     int len;
-    char hn[MAXHOSTNAMELEN], *cptr;
+    char hn[OPAL_MAXHOSTNAMELEN], *cptr;
 
     /*
      * TODO: for aries want to plug in GNI addr here instead to
      * eventually be able to support connect/accept using aprun.
      */
 
-    len = gethostname(hn, MAXHOSTNAMELEN - 1);
-    hn[len]='\0';
+    len = gethostname(hn, sizeof(hn));
 
     asprintf(&cptr, "gni://%s:%d", hn, getpid());
 

orte/orted/orted_main.c

@@ -230,7 +230,7 @@ int orte_daemon(int argc, char *argv[])
     char *rml_uri;
     int i;
     opal_buffer_t *buffer;
-    char hostname[100];
+    char hostname[OPAL_MAXHOSTNAMELEN];
 #if OPAL_ENABLE_FT_CR == 1
     char *tmp_env_var = NULL;
 #endif
@@ -297,7 +297,7 @@ int orte_daemon(int argc, char *argv[])
      * away just in case we have a problem along the way
      */
     if (orted_globals.debug) {
-        gethostname(hostname, 100);
+        gethostname(hostname, sizeof(hostname));
         fprintf(stderr, "Daemon was launched on %s - beginning to initialize\n", hostname);
     }
 
@@ -725,12 +725,12 @@ int orte_daemon(int argc, char *argv[])
         if (orte_retain_aliases) {
             char **aliases=NULL;
             uint8_t naliases, ni;
-            char hostname[ORTE_MAX_HOSTNAME_SIZE];
+            char hostname[OPAL_MAXHOSTNAMELEN];
 
             /* if we stripped the prefix or removed the fqdn,
              * include full hostname as an alias
              */
-            gethostname(hostname, ORTE_MAX_HOSTNAME_SIZE);
+            gethostname(hostname, sizeof(hostname));
             if (strlen(orte_process_info.nodename) < strlen(hostname)) {
                 opal_argv_append_nosize(&aliases, hostname);
             }

orte/test/mpi/concurrent_spawn.c

@@ -1,4 +1,6 @@
 #define _GNU_SOURCE
+#include "orte_config.h"
+
 #include <stdio.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ -13,7 +15,7 @@ int main(int argc, char* argv[])
     int msg;
     MPI_Comm parent, children[NUM_CHILDREN];
     int rank, size, i;
-    char hostname[512];
+    char hostname[OPAL_MAXHOSTNAMELEN];
     pid_t pid;
     char *child_argv[2] = { "", NULL };
 
@@ -54,7 +56,7 @@ int main(int argc, char* argv[])
     }
     /* Otherwise, we're the child */
     else {
-        gethostname(hostname, 512);
+        gethostname(hostname, sizeof(hostname));
         if (argc == 1) {
             printf("ERROR: child did not receive exepcted argv!\n");
             i = -1;

orte/test/mpi/delayed_abort.c

@@ -5,6 +5,8 @@
  * The most basic of MPI applications
  */
 
+#include "orte_config.h"
+
 #include <stdio.h>
 #include <unistd.h>
 #include "mpi.h"
@@ -12,13 +14,13 @@
 int main(int argc, char* argv[])
 {
     int rank, size;
-    char hostname[512];
+    char hostname[OPAL_MAXHOSTNAMELEN];
 
     MPI_Init(&argc, &argv);
     MPI_Comm_rank(MPI_COMM_WORLD, &rank);
     MPI_Comm_size(MPI_COMM_WORLD, &size);
 
-    gethostname(hostname, 512);
+    gethostname(hostname, sizeof(hostname));
     printf("%s: I am %d of %d. pid=%d\n", hostname, rank, size, getpid());
 
     if (rank%3 == 0) {

orte/test/mpi/hello_nodename.c

@@ -6,6 +6,9 @@
  */
 
 #define _GNU_SOURCE
+
+#include "orte_config.h"
+
 #include <stdio.h>
 #include <unistd.h>
 #include <stdlib.h>
@@ -15,7 +18,7 @@
 int main(int argc, char* argv[])
 {
     int rank, size;
-    char hostname[512];
+    char hostname[OPAL_MAXHOSTNAMELEN];
     void *appnum;
     void *univ_size;
     char *appstr, *unistr;
@@ -40,7 +43,7 @@ int main(int argc, char* argv[])
         asprintf(&unistr, "%d", *(int*)univ_size);
     }
 
-    gethostname(hostname, 512);
+    gethostname(hostname, sizeof(hostname));
     printf("Hello, World, I am %d of %d on host %s from app number %s universe size %s universe envar %s\n",
            rank, size, hostname, appstr, unistr, (NULL == envar) ? "NULL" : envar);
 

orte/test/mpi/info_spawn.c

@@ -1,3 +1,5 @@
+#include "orte_config.h"
+
 #include <stdio.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ -11,7 +13,7 @@ int main(int argc, char* argv[])
     int msg, rc, i;
     MPI_Comm parent, child;
     int rank, size;
-    char hostname[512];
+    char hostname[OPAL_MAXHOSTNAMELEN];
     pid_t pid;
     MPI_Info info;
     char *keyval, *tmp;
@@ -63,7 +65,7 @@ int main(int argc, char* argv[])
     else {
         MPI_Comm_rank(MPI_COMM_WORLD, &rank);
         MPI_Comm_size(MPI_COMM_WORLD, &size);
-        gethostname(hostname, 512);
+        gethostname(hostname, sizeof(hostname));
         pid = getpid();
         printf("Hello from the child %d of %d on host %s pid %ld\n", rank, 3, hostname, (long)pid);
         if (0 == rank) {

orte/test/mpi/simple_spawn.c

@@ -1,3 +1,5 @@
+#include "orte_config.h"
+
 #include <stdio.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ -9,7 +11,7 @@ int main(int argc, char* argv[])
     int msg, rc;
     MPI_Comm parent, child;
     int rank, size;
-    char hostname[512];
+    char hostname[OPAL_MAXHOSTNAMELEN];
     pid_t pid;
 
     pid = getpid();
@@ -41,7 +43,7 @@ int main(int argc, char* argv[])
     else {
         MPI_Comm_rank(MPI_COMM_WORLD, &rank);
         MPI_Comm_size(MPI_COMM_WORLD, &size);
-        gethostname(hostname, 512);
+        gethostname(hostname, sizeof(hostname));
         pid = getpid();
         printf("Hello from the child %d of %d on host %s pid %ld\n", rank, 3, hostname, (long)pid);
         if (0 == rank) {

orte/test/mpi/singleton_client_server.c

@@ -1,3 +1,4 @@
+#include "orte_config.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -44,7 +45,7 @@
 
 int main(int argc, char *argv[])
 {
-  char hostname[255] ;
+  char hostname[OPAL_MAXHOSTNAMELEN] ;
   char buff[255] ;
 
   int role ;
@@ -80,7 +81,7 @@ int main(int argc, char *argv[])
 
   /* get the node name */
   {
-    int retval = gethostname(hostname, 255) ;
+    int retval = gethostname(hostname, sizeof(hostname));
     if(retval == -1)
     {
       fprintf(stderr, "gethostname failed: %s\n", strerror(errno)) ;

orte/test/mpi/spawn_multiple.c

@@ -1,3 +1,5 @@
+#include "orte_config.h"
+
 #include <stdio.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ -9,7 +11,7 @@ int main(int argc, char* argv[])
     int msg;
     MPI_Comm parent, child;
     int rank, size;
-    char hostname[512];
+    char hostname[OPAL_MAXHOSTNAMELEN];
     pid_t pid;
     int i;
     char *cmds[2];
@@ -48,7 +50,7 @@ int main(int argc, char* argv[])
     else {
         MPI_Comm_rank(MPI_COMM_WORLD, &rank);
         MPI_Comm_size(MPI_COMM_WORLD, &size);
-        gethostname(hostname, 512);
+        gethostname(hostname, sizeof(hostname));
         pid = getpid();
         printf("Hello from the child %d of %d on host %s pid %ld: argv[1] = %s\n", rank, size, hostname, (long)pid, argv[1]);
         MPI_Recv(&msg, 1, MPI_INT, 0, 1, parent, MPI_STATUS_IGNORE);

orte/test/mpi/spawn_tree.c

@@ -1,3 +1,5 @@
+#include "orte_config.h"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -9,7 +11,7 @@ int main(int argc, char ** argv){
 
     int i;
     int rank, size, child_rank;
-    char nomehost[20];
+    char nomehost[OPAL_MAXHOSTNAMELEN];
     MPI_Comm parent, intercomm1, intercomm2;
     int erro;
     int level, curr_level;
@@ -60,7 +62,7 @@ int main(int argc, char ** argv){
 
     }
 
-    gethostname(nomehost, 20);
+    gethostname(nomehost, sizeof(nomehost));
     printf("(%d) in %s\n", rank, nomehost);
 
     MPI_Finalize();

orte/test/system/orte_abort.c

@@ -6,6 +6,8 @@
  * abnormal program termination
  */
 
+#include "orte_config.h"
+
 #include <stdio.h>
 #include <unistd.h>
 
@@ -21,14 +23,14 @@ int main(int argc, char* argv[])
     int i, rc;
     double pi;
     pid_t pid;
-    char hostname[500];
+    char hostname[OPAL_MAXHOSTNAMELEN];
 
     if (0 > (rc = orte_init(&argc, &argv, ORTE_PROC_NON_MPI))) {
         fprintf(stderr, "orte_abort: couldn't init orte - error code %d\n", rc);
         return rc;
     }
     pid = getpid();
-    gethostname(hostname, 500);
+    gethostname(hostname, sizeof(hostname));
 
     if (1 < argc) {
         rc = strtol(argv[1], NULL, 10);

orte/test/system/orte_exit.c

@@ -6,6 +6,8 @@
  * abnormal program termination
  */
 
+#include "orte_config.h"
+
 #include <stdio.h>
 #include <unistd.h>
 
@@ -21,14 +23,14 @@ int main(int argc, char* argv[])
     int i, rc;
     double pi;
     pid_t pid;
-    char hostname[500];
+    char hostname[OPAL_MAXHOSTNAMELEN];
 
     if (0 > (rc = orte_init(&argc, &argv, ORTE_PROC_NON_MPI))) {
         fprintf(stderr, "orte_abort: couldn't init orte - error code %d\n", rc);
         return rc;
     }
     pid = getpid();
-    gethostname(hostname, 500);
+    gethostname(hostname, sizeof(hostname));
 
     printf("orte_abort: Name %s Host: %s Pid %ld\n", ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
            hostname, (long)pid);

orte/test/system/orte_nodename.c

@@ -5,6 +5,8 @@
  * The most basic of MPI applications
  */
 
+#include "orte_config.h"
+
 #include <stdio.h>
 #include <unistd.h>
 
@@ -20,7 +22,7 @@
 int main(int argc, char* argv[])
 {
     int rc, i, restart=-1;
-    char hostname[512], *rstrt;
+    char hostname[OPAL_MAXHOSTNAMELEN], *rstrt;
     pid_t pid;
 
     if (0 > (rc = orte_init(&argc, &argv, ORTE_PROC_NON_MPI))) {
@@ -32,7 +34,7 @@ int main(int argc, char* argv[])
         restart = strtol(rstrt, NULL, 10);
     }
 
-    gethostname(hostname, 512);
+    gethostname(hostname, sizeof(hostname));
     pid = getpid();
 
     printf("orte_nodename: Node %s Name %s Pid %ld Restarts: %d\n",

orte/test/system/ulfm.c

@@ -1,6 +1,8 @@
 /* -*- C -*-
  */
 
+#include "orte_config.h"
+
 #include <stdio.h>
 #include <unistd.h>
 #include <stdlib.h>
@@ -19,14 +21,14 @@ int main(int argc, char* argv[])
     int i, rc;
     double pi;
     pid_t pid;
-    char hostname[500];
+    char hostname[OPAL_MAXHOSTNAMELEN];
 
     if (0 > (rc = orte_init(&argc, &argv, ORTE_PROC_NON_MPI))) {
         fprintf(stderr, "orte_abort: couldn't init orte - error code %d\n", rc);
         return rc;
     }
     pid = getpid();
-    gethostname(hostname, 500);
+    gethostname(hostname, sizeof(hostname));
 
     if (1 < argc) {
         rc = strtol(argv[1], NULL, 10);

orte/util/proc_info.c

@@ -99,7 +99,7 @@ int orte_proc_info(void)
 
     int idx, i;
     char *ptr;
-    char hostname[ORTE_MAX_HOSTNAME_SIZE];
+    char hostname[OPAL_MAXHOSTNAMELEN];
     char **prefixes;
     bool match;
     struct in_addr buf;
@@ -168,7 +168,7 @@ int orte_proc_info(void)
     orte_process_info.pid = getpid();
 
     /* get the nodename */
-    gethostname(hostname, ORTE_MAX_HOSTNAME_SIZE);
+    gethostname(hostname, sizeof(hostname));
     /* add this to our list of aliases */
     opal_argv_append_nosize(&orte_process_info.aliases, hostname);
 

orte/util/proc_info.h

@@ -45,8 +45,6 @@
 
 BEGIN_C_DECLS
 
-#define ORTE_MAX_HOSTNAME_SIZE  512
-
 typedef uint32_t orte_proc_type_t;
 #define ORTE_PROC_TYPE_NONE     0x0000
 #define ORTE_PROC_SINGLETON     0x0001