Add more error handling

Author: michaelortmann

src/mod/share.mod/share.c

@@ -26,6 +26,7 @@
 
 #include <errno.h>
 #include "src/mod/module.h"
+#include <resolv.h>
 
 #include <netinet/in.h>
 #include <arpa/inet.h>
@@ -1228,11 +1229,11 @@ static void share_userfileq(int idx, char *par)
 /* New user file share mechanism via multiplex over already existing bot link
  * ur <len>
  */
-#include <resolv.h>
 static void share_ufsend2(int idx, char *par)
 {
   int len;
   unsigned char *buf;
+  ssize_t i;
 
   len = strlen(par);
   debug2("share: share_ufsend2(): start: par = >%s< len = %i", par, len);
@@ -1248,7 +1249,13 @@ static void share_ufsend2(int idx, char *par)
     putlog(LOG_BOTS, "*", "share: share_ufsend2(): error mkstemp(): %s", strerror(errno));
     return;
   }
-  write(fd, buf, len); /* TODO: error handling */
+  if ((i = write(fd, buf, len)) != len) {
+    if (i < 0)
+      putlog(LOG_MISC, "*", "Share error: sare_ufsend2(): write(): %s", strerror(errno));
+    else
+      putlog(LOG_MISC, "*", "share error: sare_ufsend2(): write(): Wrote %ld bytes instead of %i bytes.", (long) i, len);
+    return;
+  }
   close(fd);
   dcc[idx].u.xfer->filename = template;
   /* The new method has got no extra dcc[] for the file transfer,