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Unescape arguments before passing to format_expand1 so that escaping :s

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etc actually works.
This commit is contained in:
nicm
2026-06-18 11:54:37 +00:00
parent cba4ba9cdc
commit 14fc4a06a6
1 changed files with 12 additions and 10 deletions
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16
format.c
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@@ -4240,22 +4240,24 @@ format_check_time(struct format_expand_state *es, u_int *check)
/* Unescape escaped characters. */
static char *
format_unescape(struct format_expand_state *es, const char *s)
format_unescape(struct format_expand_state *es, const char *s, size_t n)
{
const char *end = s + n;
char *out, *cp;
int brackets = 0;
u_int check = 0;
cp = out = xmalloc(strlen(s) + 1);
for (; *s != '\0'; s++) {
cp = out = xmalloc(n + 1);
for (; s != end; s++) {
if (!format_check_time(es, &check)) {
free(out);
return (xstrdup(""));
}
if (*s == '#' && s[1] == '{')
if (*s == '#' && s + 1 != end && s[1] == '{')
brackets++;
if (brackets == 0 &&
*s == '#' &&
s + 1 != end &&
strchr(",#{}:", s[1]) != NULL) {
*cp++ = *++s;
continue;
@@ -4476,7 +4478,7 @@ format_build_modifiers(struct format_expand_state *es, const char **s,
break;
argv = xcalloc(1, sizeof *argv);
value = xstrndup(cp + 1, end - (cp + 1));
value = format_unescape(es, cp + 1, end - (cp + 1));
argv[0] = format_expand1(es, value);
free(value);
argc = 1;
@@ -4500,7 +4502,7 @@ format_build_modifiers(struct format_expand_state *es, const char **s,
cp++;
argv = xreallocarray(argv, argc + 1, sizeof *argv);
value = xstrndup(cp, end - cp);
value = format_unescape(es, cp, end - cp);
argv[argc++] = format_expand1(es, value);
free(value);
@@ -5368,7 +5370,7 @@ format_replace(struct format_expand_state *es, const char *key, size_t keylen,
/* Is this a literal string? */
if (modifiers & FORMAT_LITERAL) {
format_log(es, "literal string is '%s'", copy);
value = format_unescape(es, copy);
value = format_unescape(es, copy, strlen(copy));
goto done;
}