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-rw-r--r--src/utils.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/src/utils.c b/src/utils.c
index 5874077c..cc339941 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -107,6 +107,7 @@ int osmo_hexparse(const char *str, uint8_t *b, int max_len)
}
static char hexd_buff[4096];
+static const char hex_chars[] = "0123456789abcdef";
static char *_osmo_hexdump(const unsigned char *buf, int len, char *delim)
{
@@ -115,13 +116,20 @@ static char *_osmo_hexdump(const unsigned char *buf, int len, char *delim)
hexd_buff[0] = 0;
for (i = 0; i < len; i++) {
+ const char *delimp = delim;
int len_remain = sizeof(hexd_buff) - (cur - hexd_buff);
- if (len_remain <= 0)
+ if (len_remain < 3)
break;
- int rc = snprintf(cur, len_remain, "%02x%s", buf[i], delim);
- if (rc <= 0)
- break;
- cur += rc;
+
+ *cur++ = hex_chars[buf[i] >> 4];
+ *cur++ = hex_chars[buf[i] & 0xf];
+
+ while (len_remain > 1 && *delimp) {
+ *cur++ = *delimp++;
+ len_remain--;
+ }
+
+ *cur = 0;
}
hexd_buff[sizeof(hexd_buff)-1] = 0;
return hexd_buff;