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tncattach

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- WHen parsing the `prefixPart_s` (the prefix length), only continue if
the text is a number, if not then bail out with an error
This commit is contained in:
Tristan B. Velloza Kildaire 2024-12-19 08:44:00 +02:00
parent c6585c242e
commit 6830ddad67
1 changed files with 4 additions and 0 deletions
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tncattach.c
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@ -504,6 +504,10 @@ static error_t parse_opt(int key, char *arg, struct argp_state *state) {
long prefixLen_l = strtol(prefixPart_s, NULL, 10); // TODO: Add handling here for errors (using errno) long prefixLen_l = strtol(prefixPart_s, NULL, 10); // TODO: Add handling here for errors (using errno)
if(prefixLen_l == 0) {
printf("Prefix length '%s' is not numeric\n", prefixPart_s);
exit(EXIT_FAILURE);
}
arguments->ipv6 = ipPart_s; arguments->ipv6 = ipPart_s;