Cleanup error messages

diff --git a/networking/libiproute/iptunnel.c b/networking/libiproute/iptunnel.c
index beb8bb6..58ec7cc 100644 (file)
--- a/networking/libiproute/iptunnel.c
+++ b/networking/libiproute/iptunnel.c
@@ -41,13 +41,11 @@ static int do_ioctl_get_ifindex(char *dev)
 {
        struct ifreq ifr;
        int fd;
-       int err;
 
        strcpy(ifr.ifr_name, dev);
        fd = socket(AF_INET, SOCK_DGRAM, 0);
-       err = ioctl(fd, SIOCGIFINDEX, &ifr);
-       if (err) {
-               perror("ioctl");
+       if (ioctl(fd, SIOCGIFINDEX, &ifr)) {
+               perror_msg("ioctl");
                return 0;
        }
        close(fd);
@@ -58,13 +56,11 @@ static int do_ioctl_get_iftype(char *dev)
 {
        struct ifreq ifr;
        int fd;
-       int err;
 
        strcpy(ifr.ifr_name, dev);
        fd = socket(AF_INET, SOCK_DGRAM, 0);
-       err = ioctl(fd, SIOCGIFHWADDR, &ifr);
-       if (err) {
-               perror("ioctl");
+       if (ioctl(fd, SIOCGIFHWADDR, &ifr)) {
+               perror_msg("ioctl");
                return -1;
        }
        close(fd);
@@ -72,17 +68,15 @@ static int do_ioctl_get_iftype(char *dev)
 }
 
 
-static char * do_ioctl_get_ifname(int idx)
+static char *do_ioctl_get_ifname(int idx)
 {
        static struct ifreq ifr;
        int fd;
-       int err;
 
        ifr.ifr_ifindex = idx;
        fd = socket(AF_INET, SOCK_DGRAM, 0);
-       err = ioctl(fd, SIOCGIFNAME, &ifr);
-       if (err) {
-               perror("ioctl");
+       if (ioctl(fd, SIOCGIFNAME, &ifr)) {
+               perror_msg("ioctl");
                return NULL;
        }
        close(fd);
@@ -101,8 +95,9 @@ static int do_get_ioctl(char *basedev, struct ip_tunnel_parm *p)
        ifr.ifr_ifru.ifru_data = (void*)p;
        fd = socket(AF_INET, SOCK_DGRAM, 0);
        err = ioctl(fd, SIOCGETTUNNEL, &ifr);
-       if (err)
-               perror("ioctl");
+       if (err) {
+               perror_msg("ioctl");
+       }
        close(fd);
        return err;
 }
@@ -113,15 +108,17 @@ static int do_add_ioctl(int cmd, char *basedev, struct ip_tunnel_parm *p)
        int fd;
        int err;
 
-       if (cmd == SIOCCHGTUNNEL && p->name[0])
+       if (cmd == SIOCCHGTUNNEL && p->name[0]) {
                strcpy(ifr.ifr_name, p->name);
-       else
+       } else {
                strcpy(ifr.ifr_name, basedev);
+       }
        ifr.ifr_ifru.ifru_data = (void*)p;
        fd = socket(AF_INET, SOCK_DGRAM, 0);
        err = ioctl(fd, cmd, &ifr);
-       if (err)
-               perror("ioctl");
+       if (err) {
+               perror_msg("ioctl");
+       }
        close(fd);
        return err;
 }
@@ -132,15 +129,17 @@ static int do_del_ioctl(char *basedev, struct ip_tunnel_parm *p)
        int fd;
        int err;
 
-       if (p->name[0])
+       if (p->name[0]) {
                strcpy(ifr.ifr_name, p->name);
-       else
+       } else {
                strcpy(ifr.ifr_name, basedev);
+       }
        ifr.ifr_ifru.ifru_data = (void*)p;
        fd = socket(AF_INET, SOCK_DGRAM, 0);
        err = ioctl(fd, SIOCDELTUNNEL, &ifr);
-       if (err)
-               perror("ioctl");
+       if (err) {
+               perror_msg("ioctl");
+       }
        close(fd);
        return err;
 }
@@ -149,7 +148,6 @@ static int parse_args(int argc, char **argv, int cmd, struct ip_tunnel_parm *p)
 {
        int count = 0;
        char medium[IFNAMSIZ];
-
        memset(p, 0, sizeof(*p));
        memset(&medium, 0, sizeof(medium));
 
@@ -166,26 +164,26 @@ static int parse_args(int argc, char **argv, int cmd, struct ip_tunnel_parm *p)
                        if (strcmp(*argv, "ipip") == 0 ||
                            strcmp(*argv, "ip/ip") == 0) {
                                if (p->iph.protocol && p->iph.protocol != IPPROTO_IPIP) {
-                                       fprintf(stderr,"You managed to ask for more than one tunnel mode.\n");
+                                       error_msg("You managed to ask for more than one tunnel mode.");
                                        exit(-1);
                                }
                                p->iph.protocol = IPPROTO_IPIP;
                        } else if (strcmp(*argv, "gre") == 0 ||
                                   strcmp(*argv, "gre/ip") == 0) {
                                if (p->iph.protocol && p->iph.protocol != IPPROTO_GRE) {
-                                       fprintf(stderr,"You managed to ask for more than one tunnel mode.\n");
+                                       error_msg("You managed to ask for more than one tunnel mode.");
                                        exit(-1);
                                }
                                p->iph.protocol = IPPROTO_GRE;
                        } else if (strcmp(*argv, "sit") == 0 ||
                                   strcmp(*argv, "ipv6/ip") == 0) {
                                if (p->iph.protocol && p->iph.protocol != IPPROTO_IPV6) {
-                                       fprintf(stderr,"You managed to ask for more than one tunnel mode.\n");
+                                       error_msg("You managed to ask for more than one tunnel mode.");
                                        exit(-1);
                                }
                                p->iph.protocol = IPPROTO_IPV6;
                        } else {
-                               fprintf(stderr,"Cannot guess tunnel mode.\n");
+                               error_msg("Cannot guess tunnel mode.");
                                exit(-1);
                        }
                } else if (strcmp(*argv, "key") == 0) {
@@ -197,7 +195,7 @@ static int parse_args(int argc, char **argv, int cmd, struct ip_tunnel_parm *p)
                                p->i_key = p->o_key = get_addr32(*argv);
                        else {
                                if (get_unsigned(&uval, *argv, 0)<0) {
-                                       fprintf(stderr, "invalid value of \"key\"\n");
+                                       error_msg("invalid value of \"key\"");
                                        exit(-1);
                                }
                                p->i_key = p->o_key = htonl(uval);
@@ -210,7 +208,7 @@ static int parse_args(int argc, char **argv, int cmd, struct ip_tunnel_parm *p)
                                p->o_key = get_addr32(*argv);
                        else {
                                if (get_unsigned(&uval, *argv, 0)<0) {
-                                       fprintf(stderr, "invalid value of \"ikey\"\n");
+                                       error_msg("invalid value of \"ikey\"");
                                        exit(-1);
                                }
                                p->i_key = htonl(uval);
@@ -223,7 +221,7 @@ static int parse_args(int argc, char **argv, int cmd, struct ip_tunnel_parm *p)
                                p->o_key = get_addr32(*argv);
                        else {
                                if (get_unsigned(&uval, *argv, 0)<0) {
-                                       fprintf(stderr, "invalid value of \"okey\"\n");
+                                       error_msg("invalid value of \"okey\"");
                                        exit(-1);
                                }
                                p->o_key = htonl(uval);
@@ -308,7 +306,7 @@ static int parse_args(int argc, char **argv, int cmd, struct ip_tunnel_parm *p)
 
        if (p->iph.protocol == IPPROTO_IPIP || p->iph.protocol == IPPROTO_IPV6) {
                if ((p->i_flags & GRE_KEY) || (p->o_flags & GRE_KEY)) {
-                       fprintf(stderr, "Keys are not allowed with ipip and sit.\n");
+                       error_msg("Keys are not allowed with ipip and sit.");
                        return -1;
                }
        }
@@ -328,7 +326,7 @@ static int parse_args(int argc, char **argv, int cmd, struct ip_tunnel_parm *p)
                p->o_flags |= GRE_KEY;
        }
        if (IN_MULTICAST(ntohl(p->iph.daddr)) && !p->iph.saddr) {
-               fprintf(stderr, "Broadcast tunnel requires a source address.\n");
+               error_msg("Broadcast tunnel requires a source address.");
                return -1;
        }
        return 0;
@@ -343,7 +341,7 @@ static int do_add(int cmd, int argc, char **argv)
                return -1;
 
        if (p.iph.ttl && p.iph.frag_off == 0) {
-               fprintf(stderr, "ttl != 0 and noptmudisc are incompatible\n");
+               error_msg("ttl != 0 and noptmudisc are incompatible");
                return -1;
        }
 
@@ -355,7 +353,7 @@ static int do_add(int cmd, int argc, char **argv)
        case IPPROTO_IPV6:
                return do_add_ioctl(cmd, "sit0", &p);
        default:        
-               fprintf(stderr, "cannot determine tunnel mode (ipip, gre or sit)\n");
+               error_msg("cannot determine tunnel mode (ipip, gre or sit)");
                return -1;
        }
        return -1;
@@ -464,7 +462,7 @@ static int do_tunnels_list(struct ip_tunnel_parm *p)
                buf[sizeof(buf) - 1] = 0;
                if ((ptr = strchr(buf, ':')) == NULL ||
                    (*ptr++ = 0, sscanf(buf, "%s", name) != 1)) {
-                       fprintf(stderr, "Wrong format of /proc/net/dev. Sorry.\n");
+                       error_msg("Wrong format of /proc/net/dev. Sorry.");
                        return -1;
                }
                if (sscanf(ptr, "%ld%ld%ld%ld%ld%ld%ld%*d%ld%ld%ld%ld%ld%ld%ld",
@@ -477,7 +475,7 @@ static int do_tunnels_list(struct ip_tunnel_parm *p)
                        continue;
                type = do_ioctl_get_iftype(name);
                if (type == -1) {
-                       fprintf(stderr, "Failed to get type of [%s]\n", name);
+                       error_msg("Failed to get type of [%s]", name);
                        continue;
                }
                if (type != ARPHRD_TUNNEL && type != ARPHRD_IPGRE && type != ARPHRD_SIT)
@@ -543,6 +541,6 @@ int do_iptunnel(int argc, char **argv)
        } else
                return do_show(0, NULL);
 
-       fprintf(stderr, "Command \"%s\" is unknown, try \"ip tunnel help\".\n", *argv);
+       error_msg("Command \"%s\" is unknown, try \"ip tunnel help\".", *argv);
        exit(-1);
 }