Thanks Jonathan.
# /usr/sbin/dtrace -32 -s d3_2.d -c /var/tmp/getspnam.o
dtrace: script 'd3_2.d' matched 1 probe
dtrace: pid 12352 has exited
dtrace: error on enabled probe ID 1 (ID 77377:
pid12352:libc.so.1:getspnam:return): invalid address (0x6e322000) in action #2
at DIF offset 20
here is the complete script
typedef struct spwd {
char *sp_namp; /* user name */
char *sp_pwdp; /* user password */
int sp_lstchg; /* password lastchanged date */
int sp_min; /* minimum number of days between password changes */
int sp_max; /* number of days password is valid */
int sp_warn; /* number of days to warn user to change passwd */
int sp_inact; /* number of days the login may be inactive */
int sp_expire; /* date when the login is no longer valid */
unsigned int sp_flag; /* currently not being used */
} spwd_t;
pid$target::getspnam:return
/arg1 != NULL/ {
self->spwd = (spwd_t *)copyin(arg1, sizeof(spwd_t));
printf("name: %s", copyinstr((uintptr_t)(uint32_t)self->spwd->sp_namp));
}
--
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