Changeset 4e716180 in mainline for uspace/app/ping/ping.c

Timestamp:

2013-05-03T21:14:39Z (12 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

716357f

Parents:

1c7ba2d (diff), 5d1cb8a (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge simple DNS resolver.

File:

• uspace/app/ping/ping.c (modified) (10 diffs)

uspace/app/ping/ping.c

@@ -37 +37 @@
 #include <errno.h>
 #include <fibril_synch.h>
+#include <inet/dnsr.h>
 #include <inet/addr.h>
 #include <inet/inetping.h>
@@ -69 +70 @@
 static void print_syntax(void)
 {
-        printf("syntax: " NAME " [-r] <addr>\n");
+        printf("syntax: " NAME " [-r] <host>\n");
 }
 
@@ -173 +174 @@
 int main(int argc, char *argv[])
 {
+        dnsr_hostinfo_t *hinfo = NULL;
+        char *asrc = NULL;
+        char *adest = NULL;
+        char *sdest = NULL;
         int rc;
         int argi;
@@ -180 +185 @@
                 printf(NAME ": Failed connecting to internet ping service "
                     "(%d).\n", rc);
-                return 1;
+                goto error;
         }
 
@@ -193 +198 @@
         if (argc - argi != 1) {
                 print_syntax();
-                return 1;
+                goto error;
         }
 
@@ -199 +204 @@
         rc = inet_addr_parse(argv[argi], &dest_addr);
         if (rc != EOK) {
-                printf(NAME ": Invalid address format.\n");
-                print_syntax();
-                return 1;
+                /* Try interpreting as a host name */
+                rc = dnsr_name2host(argv[argi], &hinfo);
+                if (rc != EOK) {
+                        printf(NAME ": Error resolving host '%s'.\n", argv[argi]);
+                        goto error;
+                }
+
+                dest_addr = hinfo->addr;
         }
 
@@ -208 +218 @@
         if (rc != EOK) {
                 printf(NAME ": Failed determining source address.\n");
-                return 1;
-        }
+                goto error;
+        }
+
+        rc = inet_addr_format(&src_addr, &asrc);
+        if (rc != EOK) {
+                printf(NAME ": Out of memory.\n");
+                goto error;
+        }
+
+        rc = inet_addr_format(&dest_addr, &adest);
+        if (rc != EOK) {
+                printf(NAME ": Out of memory.\n");
+                goto error;
+        }
+
+        if (hinfo != NULL) {
+                rc = asprintf(&sdest, "%s (%s)", hinfo->name, adest);
+                if (rc < 0) {
+                        printf(NAME ": Out of memory.\n");
+                        goto error;
+                }
+        } else {
+                sdest = adest;
+                adest = NULL;
+        }
+
+        printf("Sending ICMP echo request from %s to %s.\n",
+            asrc, sdest);
 
         fid_t fid;
@@ -217 +253 @@
                 if (fid == 0) {
                         printf(NAME ": Failed creating transmit fibril.\n");
-                        return 1;
+                        goto error;
                 }
 
@@ -225 +261 @@
                 if (fid == 0) {
                         printf(NAME ": Failed creating input fibril.\n");
-                        return 1;
+                        goto error;
                 }
 
@@ -243 +279 @@
         if (rc == ETIMEOUT) {
                 printf(NAME ": Echo request timed out.\n");
-                return 1;
-        }
-
+                goto error;
+        }
+
+        free(asrc);
+        free(adest);
+        free(sdest);
+        dnsr_hostinfo_destroy(hinfo);
         return 0;
+error:
+        free(asrc);
+        free(adest);
+        free(sdest);
+        dnsr_hostinfo_destroy(hinfo);
+        return 1;
 }