diff options
| author | Simon Glass | 2021-10-14 12:48:07 -0600 |
|---|---|---|
| committer | Tom Rini | 2021-11-11 19:02:34 -0500 |
| commit | 4a255ea3b65e7793eea97a90ad00dc2b59889683 (patch) | |
| tree | 3d61765cb89672ba2cdab07ec363ca627827aeb0 /lib/vsprintf.c | |
| parent | 3bfb0f719a196558f909ca568f3803f86a190509 (diff) | |
lib: Add a function to convert a string to a hex value
Add an xtoa() function, similar to itoa() but for hex instead.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Artem Lapkin <email2tema@gmail.com>
Tested-by: Artem Lapkin <email2tema@gmail.com>
Diffstat (limited to 'lib/vsprintf.c')
| -rw-r--r-- | lib/vsprintf.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/lib/vsprintf.c b/lib/vsprintf.c index d7ee35b4773..e634bd70b66 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -816,11 +816,12 @@ int vprintf(const char *fmt, va_list args) } #endif +static char local_toa[22]; + char *simple_itoa(ulong i) { /* 21 digits plus null terminator, good for 64-bit or smaller ints */ - static char local[22]; - char *p = &local[21]; + char *p = &local_toa[21]; *p-- = '\0'; do { @@ -830,6 +831,21 @@ char *simple_itoa(ulong i) return p + 1; } +char *simple_xtoa(ulong num) +{ + /* 16 digits plus nul terminator, good for 64-bit or smaller ints */ + char *p = &local_toa[17]; + + *--p = '\0'; + do { + p -= 2; + hex_byte_pack(p, num & 0xff); + num >>= 8; + } while (num > 0); + + return p; +} + /* We don't seem to have %'d in U-Boot */ void print_grouped_ull(unsigned long long int_val, int digits) { |