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author | Sascha Hauer <s.hauer@pengutronix.de> | 2018-11-29 11:17:08 +0100 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-11-29 15:04:31 +0100 |
commit | 4b48ae4bcdbc137c80b77adc5aa614e5f4cb9f51 (patch) | |
tree | ec502443c6dd7e665a8b420d49eb5ae811de7775 /net/net.c | |
parent | cd9a7567b0d5afd874dcd31fd22918868e9eab9e (diff) | |
download | barebox-4b48ae4bcdbc137c80b77adc5aa614e5f4cb9f51.tar.gz barebox-4b48ae4bcdbc137c80b77adc5aa614e5f4cb9f51.tar.xz |
net: dns: return error codes
The resolv() function used to return the IP address. When net_udp_new()
fails we return an error code though which the callers of resolv() take
as an IP address. This is wrong of course and we could return 0 in this
case. Instead we return an error code and pass the resolved IP as a
pointer which allows us to return proper error codes.
This patch also adds error messages and error returns to the various
callers of resolv() which used to just continue with a zero IP and
let the user figure out what went wrong.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'net/net.c')
-rw-r--r-- | net/net.c | 4 |
1 files changed, 3 insertions, 1 deletions
@@ -107,7 +107,9 @@ IPaddr_t getenv_ip(const char *name) if (!string_to_ip(var, &ip)) return ip; - return resolv((char*)var); + resolv(var, &ip); + + return ip; } int setenv_ip(const char *name, IPaddr_t ip) |