STRSIZE
char str[STRSIZE];
char *s = ctx, new[STRSIZE];
vsnprintf(new, STRSIZE, fmt, args);
if (strlen(s) < STRSIZE)
strncat(s, new, STRSIZE - strlen(s) - 1);
char str[STRSIZE];
ret = bpf_snprintf_btf(str, STRSIZE, &p, sizeof(p), 0);
__ret = bpf_snprintf_btf(str, STRSIZE, &p, sizeof(p), 0);
__type(value, char[STRSIZE]);
ret = bpf_snprintf_btf(_str, STRSIZE, \