diff options
| -rw-r--r-- | lib/vsprintf.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/vsprintf.c b/lib/vsprintf.c index b474202fc1..7f6b161a47 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -21,6 +21,8 @@ /* we use this so that we can do without the ctype library */ #define is_digit(c) ((c) >= '0' && (c) <= '9') +#define is_alpha(c) (((c) >= 'A' && (c) <= 'Z') || ((c) >= 'a' && (c) <= 'z')) +#define is_alnum(c) (is_digit(c) || is_alpha(c)) static int skip_atoi(const char **s) { @@ -351,7 +353,7 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args) /* get field width */ field_width = -1; - if (isdigit(*fmt)) + if (is_digit(*fmt)) field_width = skip_atoi(&fmt); else if (*fmt == '*') { ++fmt; @@ -367,7 +369,7 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args) precision = -1; if (*fmt == '.') { ++fmt; - if (isdigit(*fmt)) + if (is_digit(*fmt)) precision = skip_atoi(&fmt); else if (*fmt == '*') { ++fmt; @@ -422,7 +424,7 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args) va_arg(args, void *), field_width, precision, flags); /* Skip all alphanumeric pointer suffixes */ - while (isalnum(fmt[1])) + while (is_alnum(fmt[1])) fmt++; continue; |