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Diffstat (limited to 'epan/tvbuff.c')
| -rw-r--r-- | epan/tvbuff.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/epan/tvbuff.c b/epan/tvbuff.c index 344d811ff3..8b2ae215ec 100644 --- a/epan/tvbuff.c +++ b/epan/tvbuff.c @@ -3924,6 +3924,22 @@ gboolean tvb_utf_8_isprint(tvbuff_t *tvb, const gint offset, const gint length) return isprint_utf8_string(buf, abs_length); } +gboolean tvb_ascii_isdigit(tvbuff_t *tvb, const gint offset, const gint length) +{ + const guint8* buf = tvb_get_ptr(tvb, offset, length); + guint abs_offset, abs_length = length; + + if (length == -1) { + /* tvb_get_ptr has already checked for exceptions. */ + compute_offset_and_remaining(tvb, offset, &abs_offset, &abs_length); + } + for (guint i = 0; i < abs_length; i++, buf++) + if (!g_ascii_isdigit(*buf)) + return FALSE; + + return TRUE; +} + static ws_mempbrk_pattern pbrk_crlf; /* * Given a tvbuff, an offset into the tvbuff, and a length that starts |