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https://github.com/pi-hole/dnsmasq.git
synced 2025-12-19 18:28:25 +00:00
crash at startup when an empty suffix is supplied to --conf-dir
This commit is contained in:
38
src/option.c
38
src/option.c
@@ -1474,22 +1474,25 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
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for (arg = comma; arg; arg = comma)
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{
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comma = split(arg);
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li = opt_malloc(sizeof(struct list));
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if (*arg == '*')
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if (strlen(arg) != 0)
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{
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li->next = match_suffix;
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match_suffix = li;
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/* Have to copy: buffer is overwritten */
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li->suffix = opt_string_alloc(arg+1);
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li = opt_malloc(sizeof(struct list));
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if (*arg == '*')
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{
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li->next = match_suffix;
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match_suffix = li;
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/* Have to copy: buffer is overwritten */
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li->suffix = opt_string_alloc(arg+1);
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}
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else
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{
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li->next = ignore_suffix;
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ignore_suffix = li;
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/* Have to copy: buffer is overwritten */
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li->suffix = opt_string_alloc(arg);
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}
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}
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else
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{
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li->next = ignore_suffix;
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ignore_suffix = li;
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/* Have to copy: buffer is overwritten */
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li->suffix = opt_string_alloc(arg);
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}
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};
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}
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if (!(dir_stream = opendir(directory)))
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die(_("cannot access directory %s: %s"), directory, EC_FILE);
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@@ -1555,7 +1558,12 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
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free(ignore_suffix->suffix);
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free(ignore_suffix);
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}
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for(; match_suffix; match_suffix = li)
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{
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li = match_suffix->next;
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free(match_suffix->suffix);
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free(match_suffix);
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}
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break;
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}
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