tools: try not to overflow
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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@ -286,6 +286,8 @@ static void up_if(unsigned int *netid, const char *iface)
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static void set_dnses(unsigned int netid, const char *dnses)
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{
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size_t len = strlen(dnses);
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if (len > (1<<16))
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return;
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_cleanup_free_ char *mutable = xstrdup(dnses);
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_cleanup_free_ char *arglist = xmalloc(len * 4 + 1);
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_cleanup_free_ char *arg = xmalloc(len + 4);
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@ -586,6 +588,8 @@ static void parse_options(char **iface, char **config, unsigned int *mtu, char *
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while (getline(&line, &n, file) >= 0) {
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size_t len = strlen(line), j = 0;
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if (len > (1<<16))
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return;
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_cleanup_free_ char *clean = xmalloc(len + 1);
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for (size_t i = 0; i < len; ++i) {
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