diff options
Diffstat (limited to 'src/shared/printf.c')
| -rw-r--r-- | src/shared/printf.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/shared/printf.c b/src/shared/printf.c index 9ab4606..a9cd355 100644 --- a/src/shared/printf.c +++ b/src/shared/printf.c @@ -131,7 +131,11 @@ int __printf_internal(const char *fmt, va_list argp, if (c == '.') { c = *fmt++; - while ('0' <= c && c <= '9') { + if (c == '*') { + // TODO handle negative precision + m.precision = va_arg(argp, int); + c = *fmt++; + } else while ('0' <= c && c <= '9') { m.precision *= 10; m.precision += c - '0'; c = *fmt++; @@ -166,6 +170,8 @@ int __printf_internal(const char *fmt, va_list argp, const char *s = va_arg(argp, char*); if (s == NULL) s = "(null)"; len = strlen(s); + if (len > m.precision && m.precision != 0) + len = m.precision; pad(&os, &m, len); output(&os, s, len); break; |