diff options
Diffstat (limited to 'sprintf.c')
-rw-r--r-- | sprintf.c | 33 |
1 files changed, 33 insertions, 0 deletions
@@ -1256,6 +1256,39 @@ fmt_setup(char *buf, size_t size, int c, int flags, int width, int prec) #define upper_hexdigits (ruby_hexdigits+16) #include "vsnprintf.c" +int +ruby_vsnprintf(char *str, size_t n, const char *fmt, va_list ap) +{ + int ret; + rb_printf_buffer f; + + if ((int)n < 1) + return (EOF); + f._flags = __SWR | __SSTR; + f._bf._base = f._p = (unsigned char *)str; + f._bf._size = f._w = n - 1; + f.vwrite = BSD__sfvwrite; + f.vextra = 0; + ret = (int)BSD_vfprintf(&f, fmt, ap); + *f._p = 0; + return ret; +} + +int +ruby_snprintf(char *str, size_t n, char const *fmt, ...) +{ + int ret; + va_list ap; + + if ((int)n < 1) + return (EOF); + + va_start(ap, fmt); + ret = ruby_vsnprintf(str, n, fmt, ap); + va_end(ap); + return ret; +} + typedef struct { rb_printf_buffer base; volatile VALUE value; |