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iwinfo: zero out ccode buffer since library doesn't

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Making an ubus call iwinfo countrylist '{"device":"radio0"}' will result
in some entries having garbage uninitialized stack bytes in the "code"
fields.

With this patch we zero-initialize the buffer that libiwinfo writes to,
making it NUL-terminated so that behavior doesn't happen anymore.

Signed-off-by: Denis Osvald <denis.osvald@sartura.hr>
This commit is contained in:
Denis Osvald 2016-06-02 17:06:30 +02:00 committed by Jo-Philipp Wich
parent 73aea9b8b6
commit f8174eacef
1 changed files with 1 additions and 1 deletions
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2
iwinfo.c
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@ -588,7 +588,7 @@ rpc_iwinfo_countrylist(struct ubus_context *ctx, struct ubus_object *obj,
int rv, len; int rv, len;
char cur[3]; char cur[3];
char iso3166[3]; char iso3166[3];
char res[IWINFO_BUFSIZE]; char res[IWINFO_BUFSIZE] = {0};
const char *ccode; const char *ccode;
const struct iwinfo_iso3166_label *l; const struct iwinfo_iso3166_label *l;
void *c, *d; void *c, *d;