diff options
Diffstat (limited to 'ip/iplink.c')
| -rw-r--r-- | ip/iplink.c | 31 |
1 files changed, 12 insertions, 19 deletions
diff --git a/ip/iplink.c b/ip/iplink.c index ff5b56c0..6a96ea9f 100644 --- a/ip/iplink.c +++ b/ip/iplink.c @@ -573,6 +573,8 @@ int iplink_parse(int argc, char **argv, struct iplink_req *req, req->i.ifi_flags &= ~IFF_UP; } else if (strcmp(*argv, "name") == 0) { NEXT_ARG(); + if (check_ifname(*argv)) + invarg("\"name\" not a valid ifname", *argv); *name = *argv; } else if (strcmp(*argv, "index") == 0) { NEXT_ARG(); @@ -848,6 +850,8 @@ int iplink_parse(int argc, char **argv, struct iplink_req *req, NEXT_ARG(); if (*dev) duparg2("dev", *argv); + if (check_ifname(*argv)) + invarg("\"dev\" not a valid ifname", *argv); *dev = *argv; dev_index = ll_name_to_index(*dev); } @@ -870,7 +874,6 @@ int iplink_parse(int argc, char **argv, struct iplink_req *req, static int iplink_modify(int cmd, unsigned int flags, int argc, char **argv) { - int len; char *dev = NULL; char *name = NULL; char *link = NULL; @@ -960,13 +963,8 @@ static int iplink_modify(int cmd, unsigned int flags, int argc, char **argv) } if (name) { - len = strlen(name) + 1; - if (len == 1) - invarg("\"\" is not a valid device identifier\n", - "name"); - if (len > IFNAMSIZ) - invarg("\"name\" too long\n", name); - addattr_l(&req.n, sizeof(req), IFLA_IFNAME, name, len); + addattr_l(&req.n, sizeof(req), + IFLA_IFNAME, name, strlen(name) + 1); } if (type) { @@ -1016,7 +1014,6 @@ static int iplink_modify(int cmd, unsigned int flags, int argc, char **argv) int iplink_get(unsigned int flags, char *name, __u32 filt_mask) { - int len; struct iplink_req req = { .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)), .n.nlmsg_flags = NLM_F_REQUEST | flags, @@ -1029,13 +1026,8 @@ int iplink_get(unsigned int flags, char *name, __u32 filt_mask) } answer; if (name) { - len = strlen(name) + 1; - if (len == 1) - invarg("\"\" is not a valid device identifier\n", - "name"); - if (len > IFNAMSIZ) - invarg("\"name\" too long\n", name); - addattr_l(&req.n, sizeof(req), IFLA_IFNAME, name, len); + addattr_l(&req.n, sizeof(req), + IFLA_IFNAME, name, strlen(name) + 1); } addattr32(&req.n, sizeof(req), IFLA_EXT_MASK, filt_mask); @@ -1265,6 +1257,8 @@ static int do_set(int argc, char **argv) flags &= ~IFF_UP; } else if (strcmp(*argv, "name") == 0) { NEXT_ARG(); + if (check_ifname(*argv)) + invarg("\"name\" not a valid ifname", *argv); newname = *argv; } else if (matches(*argv, "address") == 0) { NEXT_ARG(); @@ -1355,6 +1349,8 @@ static int do_set(int argc, char **argv) if (dev) duparg2("dev", *argv); + if (check_ifname(*argv)) + invarg("\"dev\" not a valid ifname", *argv); dev = *argv; } argc--; argv++; @@ -1383,9 +1379,6 @@ static int do_set(int argc, char **argv) } if (newname && strcmp(dev, newname)) { - if (strlen(newname) == 0) - invarg("\"\" is not a valid device identifier\n", - "name"); if (do_changename(dev, newname) < 0) return -1; dev = newname; |