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| author | Antonio Nino Diaz <antonio.ninodiaz@arm.com> | 2018-08-09 15:30:47 +0100 |
|---|---|---|
| committer | Antonio Nino Diaz <antonio.ninodiaz@arm.com> | 2018-08-10 09:36:18 +0100 |
| commit | 73bc6e77f11ec5616863d3cd987a7088e69c188b (patch) | |
| tree | 23f545a9c63f1fa38890789ec602a8f52df34d8b /common | |
| parent | 781842ea8a0d144b5bf2920e0bc0a9701236bdfb (diff) | |
tf_snprintf: Add support for '%s'
Change-Id: Ia3a159444e638f63de7dc5a6a4b76169c757188a
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Diffstat (limited to 'common')
| -rw-r--r-- | common/tf_snprintf.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/common/tf_snprintf.c b/common/tf_snprintf.c index a99ab7ab..6df13772 100644 --- a/common/tf_snprintf.c +++ b/common/tf_snprintf.c @@ -8,6 +8,17 @@ #include <platform.h> #include <stdarg.h> +static void string_print(char **s, size_t n, size_t *chars_printed, + const char *str) +{ + while (*str) { + if (*chars_printed < n) + *(*s)++ = *str; + (*chars_printed)++; + str++; + } +} + static void unsigned_dec_print(char **s, size_t n, size_t *chars_printed, unsigned int unum) { @@ -32,6 +43,7 @@ static void unsigned_dec_print(char **s, size_t n, size_t *chars_printed, * The following type specifiers are supported: * * %d or %i - signed decimal format + * %s - string format * %u - unsigned decimal format * * The function panics on all other formats specifiers. @@ -45,6 +57,7 @@ int tf_snprintf(char *s, size_t n, const char *fmt, ...) va_list args; int num; unsigned int unum; + char *str; size_t chars_printed = 0; if (n == 1) { @@ -79,6 +92,10 @@ int tf_snprintf(char *s, size_t n, const char *fmt, ...) unsigned_dec_print(&s, n, &chars_printed, unum); break; + case 's': + str = va_arg(args, char *); + string_print(&s, n, &chars_printed, str); + break; case 'u': unum = va_arg(args, unsigned int); unsigned_dec_print(&s, n, &chars_printed, unum); |