[bug-inetutils] [PATCH] Ping: add "ability to ping multiple host in one go".

[Kim Max]

Hello.
I'm not sure it's acceptable way, so I'm waiting for comments.

---
 ping/ping.c |   29 +++++++++++++++++++++++++----
 1 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/ping/ping.c b/ping/ping.c
index b65053e..3cf1571 100644
--- a/ping/ping.c
+++ b/ping/ping.c
@@ -34,6 +34,9 @@
 # include <netinet/ip_var.h>
 #endif
 
+#include <sys/types.h>
+#include <sys/wait.h>
+
 #include <arpa/inet.h>
 #include <netdb.h>
 #include <unistd.h>
@@ -236,7 +239,7 @@ main (int argc, char **argv)
 {
   int index;
   int one = 1;
-  int status = 0;
+  int status = 0, rstatus;
 
   set_program_name (argv[0]);
   
@@ -247,6 +250,25 @@ main (int argc, char **argv)
   iu_argp_init ("ping", program_authors);
   argp_parse (&argp, argc, argv, 0, &index, NULL);
 
+  argv += index;
+  argc -= index;
+
+  while (argc > 1) /* Don't fork if there is only host to ping. */
+    {
+      pid_t pid = fork();
+      if (pid == -1)
+        break;
+      else if (pid > 0)
+        {
+          argc = 1;
+        }
+      else
+        {
+          ++argv;
+          --argc;
+        }
+    }
+
   ping = ping_init (ICMP_ECHO, getpid ());
   if (ping == NULL)
     /* ping_init() prints our error message.  */
@@ -257,9 +279,6 @@ main (int argc, char **argv)
   /* Reset root privileges */
   setuid (getuid ());
 
-  argv += index;
-  argc -= index;
-
   if (count != 0)
     ping_set_count (ping, count);
 
@@ -276,6 +295,8 @@ main (int argc, char **argv)
       status |= (*(ping_type)) (*argv++);
       ping_reset (ping);
     }
+  while (wait(&rstatus) != -1)
+    status |= WIFEXITED(rstatus);
 
   free (ping);
   free (data_buffer);
-- 
1.6.0.3