sg_z_act_query: new utility for sending either a Zone activate or Zone query command; sg_rep_zones: add Report zone starting LBA granularity field in REPORT ZONES response [zbc2r12]; sg_decode_sense: add --nodecode option; initialize all sense buffers to 0; rework main README file

git-svn-id: https://svn.bingwo.ca/repos/sg3_utils/trunk@923 6180dd3e-e324-4e3e-922d-17de1ae2f315

5 files changed, 51 insertions, 50 deletions

diff --git a/lib/sg_cmds_basic.c b/lib/sg_cmds_basic.c
index 844018c3..e1773542 100644
--- a/lib/sg_cmds_basic.c
+++ b/lib/sg_cmds_basic.c
@@ -379,7 +379,7 @@ sg_ll_inquiry_com(struct sg_pt_base * ptvp, int sg_fd, bool cmddt, bool evpd,
     bool local_cdb = true;
     int res, ret, sense_cat, resid;
     uint8_t inq_cdb[INQUIRY_CMDLEN] = {INQUIRY_CMD, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     uint8_t * up;
 
     if (resp == NULL) {
@@ -738,7 +738,7 @@ sg_ll_request_sense_com(struct sg_pt_base * ptvp, int sg_fd, bool desc,
     static const char * const rq_s = "request sense";
     uint8_t rs_cdb[REQUEST_SENSE_CMDLEN] =
         {REQUEST_SENSE_CMD, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
 
     if (desc)
         rs_cdb[1] |= 0x1;
@@ -837,7 +837,7 @@ sg_ll_report_luns_com(struct sg_pt_base * ptvp, int sg_fd, int select_report,
     int ret, res, sense_cat;
     uint8_t rl_cdb[REPORT_LUNS_CMDLEN] =
                          {REPORT_LUNS_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
 
     rl_cdb[2] = select_report & 0xff;
     sg_put_unaligned_be32((uint32_t)mx_resp_len, rl_cdb + 6);
diff --git a/lib/sg_cmds_basic2.c b/lib/sg_cmds_basic2.c
index 06bbda62..7772aa45 100644
--- a/lib/sg_cmds_basic2.c
+++ b/lib/sg_cmds_basic2.c
@@ -93,7 +93,7 @@ sg_ll_sync_cache_10(int sg_fd, bool sync_nv, bool immed, int group,
     int res, ret, sense_cat;
     uint8_t sc_cdb[SYNCHRONIZE_CACHE_CMDLEN] =
                 {SYNCHRONIZE_CACHE_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     if (sync_nv)
@@ -154,7 +154,7 @@ sg_ll_readcap_16(int sg_fd, bool pmi, uint64_t llba, void * resp,
     uint8_t rc_cdb[SERVICE_ACTION_IN_16_CMDLEN] =
                         {SERVICE_ACTION_IN_16_CMD, READ_CAPACITY_16_SA,
                          0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     if (pmi) { /* lbs only valid when pmi set */
@@ -209,7 +209,7 @@ sg_ll_readcap_10(int sg_fd, bool pmi, unsigned int lba, void * resp,
     int ret, res, sense_cat;
     uint8_t rc_cdb[READ_CAPACITY_10_CMDLEN] =
                          {READ_CAPACITY_10_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     if (pmi) { /* lbs only valid when pmi set */
@@ -262,7 +262,7 @@ sg_ll_mode_sense6(int sg_fd, bool dbd, int pc, int pg_code, int sub_pg_code,
     int res, ret, sense_cat, resid;
     uint8_t modes_cdb[MODE_SENSE6_CMDLEN] =
         {MODE_SENSE6_CMD, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     modes_cdb[1] = (uint8_t)(dbd ? 0x8 : 0);
@@ -361,7 +361,7 @@ sg_ll_mode_sense10_v2(int sg_fd, bool llbaa, bool dbd, int pc, int pg_code,
     struct sg_pt_base * ptvp;
     uint8_t modes_cdb[MODE_SENSE10_CMDLEN] =
         {MODE_SENSE10_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
 
     modes_cdb[1] = (uint8_t)((dbd ? 0x8 : 0) | (llbaa ? 0x10 : 0));
     modes_cdb[2] = (uint8_t)(((pc << 6) & 0xc0) | (pg_code & 0x3f));
@@ -448,7 +448,7 @@ sg_ll_mode_select6_v2(int sg_fd, bool pf, bool rtd, bool sp, void * paramp,
     int res, ret, sense_cat;
     uint8_t modes_cdb[MODE_SELECT6_CMDLEN] =
         {MODE_SELECT6_CMD, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     modes_cdb[1] = (uint8_t)((pf ? 0x10 : 0x0) | (sp ? 0x1 : 0x0));
@@ -519,7 +519,7 @@ sg_ll_mode_select10_v2(int sg_fd, bool pf, bool rtd, bool sp, void * paramp,
     int res, ret, sense_cat;
     uint8_t modes_cdb[MODE_SELECT10_CMDLEN] =
         {MODE_SELECT10_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     modes_cdb[1] = (uint8_t)((pf ? 0x10 : 0x0) | (sp ? 0x1 : 0x0));
@@ -818,7 +818,7 @@ sg_ll_log_sense_v2(int sg_fd, bool ppc, bool sp, int pc, int pg_code,
     int res, ret, sense_cat, resid;
     uint8_t logs_cdb[LOG_SENSE_CMDLEN] =
         {LOG_SENSE_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     if (mx_resp_len > 0xffff) {
@@ -902,7 +902,7 @@ sg_ll_log_select(int sg_fd, bool pcr, bool sp, int pc, int pg_code,
     int res, ret, sense_cat;
     uint8_t logs_cdb[LOG_SELECT_CMDLEN] =
         {LOG_SELECT_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     if (param_len > 0xffff) {
@@ -973,7 +973,7 @@ sg_ll_start_stop_unit_com(struct sg_pt_base * ptvp, int sg_fd, bool immed,
     bool local_cdb = true;
     int res, ret, sense_cat;
     uint8_t ssuBlk[START_STOP_CMDLEN] = {START_STOP_CMD, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
 
     if (immed)
         ssuBlk[1] = 0x1;
@@ -1073,7 +1073,7 @@ sg_ll_prevent_allow(int sg_fd, int prevent, bool noisy, int verbose)
     int res, ret, sense_cat;
     uint8_t p_cdb[PREVENT_ALLOW_CMDLEN] =
                 {PREVENT_ALLOW_CMD, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     if ((prevent < 0) || (prevent > 3)) {
diff --git a/lib/sg_cmds_extra.c b/lib/sg_cmds_extra.c
index cbcc8444..7d4f4533 100644
--- a/lib/sg_cmds_extra.c
+++ b/lib/sg_cmds_extra.c
@@ -125,7 +125,7 @@ sg_ll_get_lba_status16(int sg_fd, uint64_t start_llba, uint8_t rt,
     static const char * const cdb_s = "Get LBA status(16)";
     int res, s_cat, ret;
     uint8_t getLbaStatCmd[SERVICE_ACTION_IN_16_CMDLEN];
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     memset(getLbaStatCmd, 0, sizeof(getLbaStatCmd));
@@ -202,7 +202,7 @@ sg_ll_get_lba_status32(int sg_fd, uint64_t start_llba, uint32_t scan_len,
     static const char * const cdb_s = "Get LBA status(32)";
     int res, s_cat, ret;
     uint8_t gls32_cmd[GLS32_CMD_LEN];
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     memset(gls32_cmd, 0, sizeof(gls32_cmd));
@@ -281,7 +281,7 @@ sg_ll_report_tgt_prt_grp2(int sg_fd, void * resp, int mx_resp_len,
     uint8_t rtpg_cdb[MAINTENANCE_IN_CMDLEN] =
                          {MAINTENANCE_IN_CMD, REPORT_TGT_PRT_GRP_SA,
                           0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     if (extended)
@@ -346,7 +346,7 @@ sg_ll_set_tgt_prt_grp(int sg_fd, void * paramp, int param_len, bool noisy,
     uint8_t stpg_cdb[MAINTENANCE_OUT_CMDLEN] =
                          {MAINTENANCE_OUT_CMD, SET_TGT_PRT_GRP_SA,
                           0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     sg_put_unaligned_be32((uint32_t)param_len, stpg_cdb + 6);
@@ -402,7 +402,7 @@ sg_ll_report_referrals(int sg_fd, uint64_t start_llba, bool one_seg,
     uint8_t repRef_cdb[SERVICE_ACTION_IN_16_CMDLEN] =
                          {SERVICE_ACTION_IN_16_CMD, REPORT_REFERRALS_SA,
                           0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     sg_put_unaligned_be64(start_llba, repRef_cdb + 2);
@@ -475,7 +475,7 @@ sg_ll_send_diag_com(struct sg_pt_base * ptvp, int sg_fd, int st_code,
     int res, ret, s_cat, tmout;
     uint8_t senddiag_cdb[SEND_DIAGNOSTIC_CMDLEN] =
         {SEND_DIAGNOSTIC_CMD, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
 
     senddiag_cdb[1] = (uint8_t)(st_code << 5);
     if (pf_bit)
@@ -593,7 +593,7 @@ sg_ll_receive_diag_com(struct sg_pt_base * ptvp, int sg_fd, bool pcv,
     static const char * const cdb_s = "Receive diagnostic results";
     uint8_t rcvdiag_cdb[RECEIVE_DIAGNOSTICS_CMDLEN] =
         {RECEIVE_DIAGNOSTICS_CMD, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
 
     if (pcv)
         rcvdiag_cdb[1] = 0x1;
@@ -715,7 +715,7 @@ sg_ll_read_defect10(int sg_fd, bool req_plist, bool req_glist, int dl_format,
     int res, ret, s_cat;
     uint8_t rdef_cdb[READ_DEFECT10_CMDLEN] =
         {READ_DEFECT10_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     rdef_cdb[2] = (dl_format & 0x7);
@@ -787,7 +787,7 @@ sg_ll_read_media_serial_num(int sg_fd, void * resp, int mx_resp_len,
     uint8_t rmsn_cdb[SERVICE_ACTION_IN_12_CMDLEN] =
                          {SERVICE_ACTION_IN_12_CMD, READ_MEDIA_SERIAL_NUM_SA,
                           0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     sg_put_unaligned_be32((uint32_t)mx_resp_len, rmsn_cdb + 6);
@@ -851,7 +851,7 @@ sg_ll_report_id_info(int sg_fd, int itype, void * resp, int max_resp_len,
     uint8_t rii_cdb[MAINTENANCE_IN_CMDLEN] = {MAINTENANCE_IN_CMD,
                         REPORT_IDENTIFYING_INFORMATION_SA,
                         0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     sg_put_unaligned_be32((uint32_t)max_resp_len, rii_cdb + 6);
@@ -917,7 +917,7 @@ sg_ll_set_id_info(int sg_fd, int itype, void * paramp, int param_len,
     uint8_t sii_cdb[MAINTENANCE_OUT_CMDLEN] = {MAINTENANCE_OUT_CMD,
                          SET_IDENTIFYING_INFORMATION_SA,
                          0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     sg_put_unaligned_be32((uint32_t)param_len, sii_cdb + 6);
@@ -1000,7 +1000,7 @@ sg_ll_format_unit_v2(int sg_fd, int fmtpinfo, bool longlist, bool fmtdata,
     int res, ret, s_cat, tmout;
     uint8_t fu_cdb[FORMAT_UNIT_CMDLEN] =
                 {FORMAT_UNIT_CMD, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     if (fmtpinfo)
@@ -1069,7 +1069,7 @@ sg_ll_reassign_blocks(int sg_fd, bool longlba, bool longlist, void * paramp,
     int res, ret, s_cat;
     uint8_t reass_cdb[REASSIGN_BLKS_CMDLEN] =
         {REASSIGN_BLKS_CMD, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     if (longlba)
@@ -1128,7 +1128,7 @@ sg_ll_persistent_reserve_in(int sg_fd, int rq_servact, void * resp,
     int res, ret, s_cat;
     uint8_t prin_cdb[PERSISTENT_RESERVE_IN_CMDLEN] =
                  {PERSISTENT_RESERVE_IN_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     if (rq_servact > 0)
@@ -1195,7 +1195,7 @@ sg_ll_persistent_reserve_out(int sg_fd, int rq_servact, int rq_scope,
     int res, ret, s_cat;
     uint8_t prout_cdb[PERSISTENT_RESERVE_OUT_CMDLEN] =
                  {PERSISTENT_RESERVE_OUT_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     if (rq_servact > 0)
@@ -1274,7 +1274,7 @@ sg_ll_read_long10(int sg_fd, bool pblock, bool correct, unsigned int lba,
     static const char * const cdb_s = "read long(10)";
     int res, s_cat, ret;
     uint8_t readLong_cdb[READ_LONG10_CMDLEN];
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     memset(readLong_cdb, 0, READ_LONG10_CMDLEN);
@@ -1366,7 +1366,7 @@ sg_ll_read_long16(int sg_fd, bool pblock, bool correct, uint64_t llba,
     static const char * const cdb_s = "read long(16)";
     int res, s_cat, ret;
     uint8_t readLong_cdb[SERVICE_ACTION_IN_16_CMDLEN];
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     memset(readLong_cdb, 0, sizeof(readLong_cdb));
@@ -1459,7 +1459,7 @@ sg_ll_write_long10(int sg_fd, bool cor_dis, bool wr_uncor, bool pblock,
     static const char * const cdb_s = "write long(10)";
     int res, s_cat, ret;
     uint8_t writeLong_cdb[WRITE_LONG10_CMDLEN];
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     memset(writeLong_cdb, 0, WRITE_LONG10_CMDLEN);
@@ -1541,7 +1541,7 @@ sg_ll_write_long16(int sg_fd, bool cor_dis, bool wr_uncor, bool pblock,
     static const char * const cdb_s = "write long(16)";
     int res, s_cat, ret;
     uint8_t writeLong_cdb[SERVICE_ACTION_OUT_16_CMDLEN];
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     memset(writeLong_cdb, 0, sizeof(writeLong_cdb));
@@ -1628,7 +1628,7 @@ sg_ll_verify10(int sg_fd, int vrprotect, bool dpo, int bytchk,
     int res, ret, s_cat, slen;
     uint8_t v_cdb[VERIFY10_CMDLEN] =
                 {VERIFY10_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     /* N.B. BYTCHK field expanded to 2 bits sbc3r34 */
@@ -1709,7 +1709,7 @@ sg_ll_verify16(int sg_fd, int vrprotect, bool dpo, int bytchk, uint64_t llba,
     int res, ret, s_cat, slen;
     uint8_t v_cdb[VERIFY16_CMDLEN] =
                 {VERIFY16_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     /* N.B. BYTCHK field expanded to 2 bits sbc3r34 */
@@ -1807,7 +1807,7 @@ sg_ll_ata_pt(int sg_fd, const uint8_t * cdbp, int cdb_len,
     int k, res, slen, duration;
     int ret = -1;
     uint8_t apt_cdb[ATA_PT_32_CMDLEN];
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     uint8_t * sp;
     const uint8_t * bp;
     struct sg_pt_base * ptvp;
@@ -1962,7 +1962,7 @@ sg_ll_read_buffer(int sg_fd, int mode, int buffer_id, int buffer_offset,
     int res, ret, s_cat;
     uint8_t rbuf_cdb[READ_BUFFER_CMDLEN] =
         {READ_BUFFER_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     rbuf_cdb[1] = (uint8_t)(mode & 0x1f);
@@ -2027,7 +2027,7 @@ sg_ll_write_buffer(int sg_fd, int mode, int buffer_id, int buffer_offset,
     int res, ret, s_cat;
     uint8_t wbuf_cdb[WRITE_BUFFER_CMDLEN] =
         {WRITE_BUFFER_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     wbuf_cdb[1] = (uint8_t)(mode & 0x1f);
@@ -2098,7 +2098,7 @@ sg_ll_write_buffer_v2(int sg_fd, int mode, int m_specific, int buffer_id,
     int res, ret, s_cat;
     uint8_t wbuf_cdb[WRITE_BUFFER_CMDLEN] =
         {WRITE_BUFFER_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     if (buffer_offset > 0xffffff) {
@@ -2182,7 +2182,7 @@ sg_ll_unmap_v2(int sg_fd, bool anchor, int group_num, int timeout_secs,
     int res, ret, s_cat, tmout;
     uint8_t u_cdb[UNMAP_CMDLEN] =
                          {UNMAP_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     if (anchor)
@@ -2240,7 +2240,7 @@ sg_ll_read_block_limits(int sg_fd, void * resp, int mx_resp_len,
     int ret, res, s_cat;
     uint8_t rl_cdb[READ_BLOCK_LIMITS_CMDLEN] =
       {READ_BLOCK_LIMITS_CMD, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     if (vb) {
@@ -2301,7 +2301,7 @@ sg_ll_receive_copy_results(int sg_fd, int sa, int list_id, void * resp,
     int res, ret, s_cat;
     uint8_t rcvcopyres_cdb[THIRD_PARTY_COPY_IN_CMDLEN] =
       {THIRD_PARTY_COPY_IN_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
     char b[64];
 
@@ -2364,7 +2364,7 @@ sg_ll_extended_copy(int sg_fd, void * paramp, int param_len, bool noisy,
     int res, ret, s_cat;
     uint8_t xcopy_cdb[THIRD_PARTY_COPY_OUT_CMDLEN] =
       {THIRD_PARTY_COPY_OUT_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
     const char * cdb_s = "Extended copy (LID1)";
 
@@ -2424,7 +2424,7 @@ sg_ll_3party_copy_out(int sg_fd, int sa, unsigned int list_id, int group_num,
     int res, ret, s_cat, tmout;
     uint8_t xcopy_cdb[THIRD_PARTY_COPY_OUT_CMDLEN] =
       {THIRD_PARTY_COPY_OUT_CMD, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
     char cname[80];
 
@@ -2511,7 +2511,7 @@ sg_ll_pre_fetch_x(int sg_fd, bool do_seek10, bool cdb16, bool immed,
     int res, s_cat, ret, cdb_len, tmout;
     const char *cdb_s;
     uint8_t preFetchCdb[PRE_FETCH16_CMDLEN]; /* all use longest cdb */
-    uint8_t sense_b[SENSE_BUFF_LEN];
+    uint8_t sense_b[SENSE_BUFF_LEN] = {0};
     struct sg_pt_base * ptvp;
 
     memset(preFetchCdb, 0, sizeof(preFetchCdb));
diff --git a/lib/sg_lib.c b/lib/sg_lib.c
index 8884379a..35f0fbdd 100644
--- a/lib/sg_lib.c
+++ b/lib/sg_lib.c
@@ -2818,13 +2818,14 @@ trimTrailingSpaces(char * b)
         b[k + 1] = '\0';
 }
 
-/* Note the ASCII-hex output goes to stdout. [Most other output from functions
- * in this file go to sg_warnings_strm (default stderr).]
- * 'no_ascii' allows for 3 output types:
+/* Read binary starting at 'str' for 'len' bytes and output as ASCII
+ * hexadecinal into file pointer (fp). 16 bytes per line are output with an
+ * additional space between 8th and 9th byte on each line (for readability).
+ * 'no_ascii' selects one of 3 output format types:
  *     > 0     each line has address then up to 16 ASCII-hex bytes
  *     = 0     in addition, the bytes are listed in ASCII to the right
  *     < 0     only the ASCII-hex bytes are listed (i.e. without address) */
-static void
+void
 dStrHexFp(const char* str, int len, int no_ascii, FILE * fp)
 {
     const char * p = str;
diff --git a/lib/sg_pt_dummy.c b/lib/sg_pt_dummy.c
index 9bed386b..e080ff8c 100644
--- a/lib/sg_pt_dummy.c
+++ b/lib/sg_pt_dummy.c
@@ -22,7 +22,7 @@
 #include "sg_lib.h"
 #include "sg_pr2serr.h"
 
-/* Version 1.03 20211115 */
+/* Version 1.02 20210618 */
 
 /* List of function names with external linkage that need to be defined
  *