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Message-ID: <20160804010740.GA12707@altlinux.org>
Date: Thu, 4 Aug 2016 04:07:40 +0300
From: "Dmitry V. Levin" <ldv@...linux.org>
To: musl@...ts.openwall.com
Subject: [PATCH] fix printf regression with alt-form octal, default precision
commit v1.1.5-10-gb91cdbe2bc8b626aa04dc6e3e84345accf34e4b1 that fixed
behavior of printf with alt-form octal, zero precision, zero value,
at the same time broke alt-form octal with default precision,
e. g. printf("%#09o", 1).
---
src/stdio/vfprintf.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/src/stdio/vfprintf.c b/src/stdio/vfprintf.c
index 2ecf769..ac2891c 100644
--- a/src/stdio/vfprintf.c
+++ b/src/stdio/vfprintf.c
@@ -570,7 +570,14 @@ static int printf_core(FILE *f, const char *fmt, va_list *ap, union arg *nl_arg,
if (0) {
case 'o':
a = fmt_o(arg.i, z);
- if ((fl&ALT_FORM) && p<z-a+1) p=z-a+1;
+ if (fl&ALT_FORM) {
+ if (p >= 0 && p<z-a+1) {
+ p=z-a+1;
+ } else if (arg.i) {
+ prefix+=5;
+ pl=1;
+ }
+ }
} if (0) {
case 'd': case 'i':
pl=1;
--
ldv
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