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| author | Rich Felker <dalias@aerifal.cx> | 2016-03-16 16:35:22 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2016-03-16 16:35:22 -0400 |
| commit | 4aac019a0efd59011a48d031ad046c934c7e8365 (patch) | |
| tree | 2604d4e94d02d86070b574da41ff9121b0981cf3 | |
| parent | de400b6609becbc6a5ae87fa8b155f02a860e257 (diff) | |
| download | musl-4aac019a0efd59011a48d031ad046c934c7e8365.tar.gz musl-4aac019a0efd59011a48d031ad046c934c7e8365.tar.xz musl-4aac019a0efd59011a48d031ad046c934c7e8365.zip | |
fix padding string formats to width in wide printf variants
the idiom fprintf(f, "%.*s", n, "") was wrongly used in vfwprintf as a means of producing n spaces; instead it produces no output. the correct form is fprintf(f, "%*s", n, ""), using width instead of precision, since for %s the later is a maximum rather than a minimum.
| -rw-r--r-- | src/stdio/vfwprintf.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/stdio/vfwprintf.c b/src/stdio/vfwprintf.c index f06d5aed..f9f1ecfd 100644 --- a/src/stdio/vfwprintf.c +++ b/src/stdio/vfwprintf.c @@ -288,9 +288,9 @@ static int wprintf_core(FILE *f, const wchar_t *fmt, va_list *ap, union arg *nl_ z = wmemchr(a, 0, p); if (z) p=z-a; if (w<p) w=p; - if (!(fl&LEFT_ADJ)) fprintf(f, "%.*s", w-p, ""); + if (!(fl&LEFT_ADJ)) fprintf(f, "%*s", w-p, ""); out(f, a, p); - if ((fl&LEFT_ADJ)) fprintf(f, "%.*s", w-p, ""); + if ((fl&LEFT_ADJ)) fprintf(f, "%*s", w-p, ""); l=w; continue; case 'm': @@ -303,14 +303,14 @@ static int wprintf_core(FILE *f, const wchar_t *fmt, va_list *ap, union arg *nl_ if (i<0) return -1; p=l; if (w<p) w=p; - if (!(fl&LEFT_ADJ)) fprintf(f, "%.*s", w-p, ""); + if (!(fl&LEFT_ADJ)) fprintf(f, "%*s", w-p, ""); bs = arg.p; while (l--) { i=mbtowc(&wc, bs, MB_LEN_MAX); bs+=i; fputwc(wc, f); } - if ((fl&LEFT_ADJ)) fprintf(f, "%.*s", w-p, ""); + if ((fl&LEFT_ADJ)) fprintf(f, "%*s", w-p, ""); l=w; continue; } |