mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-30 18:47:06 +00:00
47 lines
1.3 KiB
Diff
47 lines
1.3 KiB
Diff
--- a/iwlist.c
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+++ b/iwlist.c
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@@ -792,7 +792,8 @@ print_scanning_info(int skfd,
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if(iw_get_ext(skfd, ifname, SIOCGIWSCAN, &wrq) < 0)
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{
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/* Check if buffer was too small (WE-17 only) */
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- if((errno == E2BIG) && (range.we_version_compiled > 16))
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+ if((errno == E2BIG) && (range.we_version_compiled > 16)
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+ && (buflen < 0xFFFF))
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{
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/* Some driver may return very large scan results, either
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* because there are many cells, or because they have many
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@@ -808,6 +809,10 @@ print_scanning_info(int skfd,
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else
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buflen *= 2;
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+ /* wrq.u.data.length is 16 bits so max size is 65535 */
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+ if(buflen > 0xFFFF)
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+ buflen = 0xFFFF;
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+
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/* Try again */
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goto realloc;
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}
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@@ -2152,6 +2157,7 @@ main(int argc,
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char **args; /* Command arguments */
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int count; /* Number of arguments */
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const iwlist_cmd *iwcmd;
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+ int goterr = 0;
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if(argc < 2)
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iw_usage(1);
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@@ -2199,12 +2205,12 @@ main(int argc,
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/* do the actual work */
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if (dev)
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- (*iwcmd->fn)(skfd, dev, args, count);
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+ goterr = (*iwcmd->fn)(skfd, dev, args, count);
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else
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iw_enum_devices(skfd, iwcmd->fn, args, count);
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/* Close the socket. */
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iw_sockets_close(skfd);
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- return 0;
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+ return goterr;
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}
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