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Add helper function to compile a regex that supports (?i).

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This commit is contained in:
Todd C. Miller
2022-02-11 12:01:31 -07:00
parent 86d2173937
commit 7c17f84a35
23 changed files with 231 additions and 140 deletions
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14
plugins/sudoers/defaults.c
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@@ -36,7 +36,6 @@
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <regex.h>
#include <syslog.h>
#include "sudoers.h"
@@ -1287,22 +1286,17 @@ bool
cb_passprompt_regex(const union sudo_defs_val *sd_un, int op)
{
struct list_member *lm;
int errcode;
char errbuf[1024];
regex_t re;
const char *errstr;
debug_decl(cb_passprompt_regex, SUDOERS_DEBUG_DEFAULTS);
/* If adding one or more regexps, validate them with regcomp(). */
/* If adding one or more regexps, make sure they are valid. */
if (op == '+' || op == true) {
SLIST_FOREACH(lm, &sd_un->list, entries) {
errcode = regcomp(&re, lm->value, REG_EXTENDED|REG_NOSUB);
if (errcode != 0) {
regerror(errcode, &re, errbuf, sizeof(errbuf));
if (!sudo_regex_compile(NULL, lm->value, &errstr)) {
sudo_warnx(U_("invalid regular expression \"%s\": %s"),
lm->value, errbuf);
lm->value, U_(errstr));
debug_return_bool(false);
}
regfree(&re);
}
}