Remove GCC warnings:

[nbd.git] / nbd-client.c

diff --git a/nbd-client.c b/nbd-client.c
index b0631ca..9d725ca 100644 (file)
--- a/nbd-client.c
+++ b/nbd-client.c
@@ -153,17 +153,22 @@ void negotiate(int sock, u64 *rsize64, u32 *flags, char* name) {
                *flags = ((u32)ntohs(tmp)) << 16;
 
                /* reserved for future use*/
-               write(sock, &reserved, sizeof(reserved));
+               if (write(sock, &reserved, sizeof(reserved)) < 0)
+                       err("Failed/2.1: %m");
 
                /* Write the export name that we're after */
                magic = ntohll(opts_magic);
-               write(sock, &magic, sizeof(magic));
+               if (write(sock, &magic, sizeof(magic)) < 0)
+                       err("Failed/2.2: %m");
                opt = ntohl(NBD_OPT_EXPORT_NAME);
-               write(sock, &opt, sizeof(opt));
+               if (write(sock, &opt, sizeof(opt)) < 0)
+                       err("Failed/2.3: %m");
                namesize = (u32)strlen(name);
                namesize = ntohl(namesize);
-               write(sock, &namesize, sizeof(namesize));
-               write(sock, name, strlen(name));
+               if (write(sock, &namesize, sizeof(namesize)) < 0)
+                       err("Failed/2.4: %m");
+               if (write(sock, name, strlen(name)) < 0)
+                       err("Failed/2.4: %m");
        } else {
                if (magic != cliserv_magic)
                        err("Not enough cliserv_magic");
@@ -441,7 +446,10 @@ int main(int argc, char *argv[]) {
        /* Go daemon */
        
 #ifndef NOFORK
-       if(!nofork) daemon(0,0);
+       if(!nofork) {
+               if (daemon(0,0) < 0)
+                       err("Cannot detach from terminal");
+       }
 #endif
        do {
 #ifndef NOFORK