diff options
Diffstat (limited to 'toys/lsb/seq.c')
| -rw-r--r-- | toys/lsb/seq.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/toys/lsb/seq.c b/toys/lsb/seq.c index c6204742..3ff9ca44 100644 --- a/toys/lsb/seq.c +++ b/toys/lsb/seq.c @@ -32,22 +32,13 @@ GLOBALS( // Ensure there's one %f escape with correct attributes static void insanitize(char *f) { - char *s; - int found = 0; + char *s = next_printf(f, 0); - for (s = f; *s; s++) { - if (*s != '%') continue; - if (*++s == '%') continue; - if (found++) break; - while (0 <= stridx("0'#-+ ", *s)) s++; - while (isdigit(*s)) s++; - if (*s == '.') s++; - while (isdigit(*s)) s++; - if (-1 == stridx("aAeEfFgG", *s)) break; + if (!s) error_exit("bad -f no %%f"); + if (-1 == stridx("aAeEfFgG", *s) || (s = next_printf(s, 0))) { + // The @ is a byte offset, not utf8 chars. Waiting for somebody to complain. + error_exit("bad -f '%s'@%ld", f, s-f+1); } - - // The @ is a byte offset, not utf8 chars. Waiting for somebody to complain... - if (*s || !found) error_exit("bad -f '%s'@%ld", f, s-f+1); } void seq_main(void) |