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ISCSI_READCAPACITY16 add switch to print only target size

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This commit is contained in:
Peter Lieven
2012-10-26 08:39:37 +02:00
parent 1132e4f941
commit 2df2f4f12e
1 changed files with 19 additions and 11 deletions
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26
src/iscsi-readcapacity16.c
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@@ -30,13 +30,14 @@ const char *initiator = "iqn.2007-10.com.github:sahlberg:libiscsi:iscsi-readcapa
void print_usage(void) void print_usage(void)
{ {
fprintf(stderr, "Usage: iscsi-readcapacity16 [-?] [-?|--help] [--usage] [-i|--initiator-name=iqn-name] <iscsi-url>\n"); fprintf(stderr, "Usage: iscsi-readcapacity16 [-?] [-?|--help] [--usage] [-i|--initiator-name=iqn-name] [-s] <iscsi-url>\n");
} }
void print_help(void) void print_help(void)
{ {
fprintf(stderr, "Usage: iscsi_readcapacity16 [OPTION...] <iscsi-url>\n"); fprintf(stderr, "Usage: iscsi_readcapacity16 [OPTION...] <iscsi-url>\n");
fprintf(stderr, " -i, --initiator-name=iqn-name Initiatorname to use\n"); fprintf(stderr, " -i, --initiator-name=iqn-name Initiatorname to use\n");
fprintf(stderr, " -s, --size print target size only\n");
fprintf(stderr, " -d, --debug=integer debug level (0=disabled)\n"); fprintf(stderr, " -d, --debug=integer debug level (0=disabled)\n");
fprintf(stderr, "\n"); fprintf(stderr, "\n");
fprintf(stderr, "Help options:\n"); fprintf(stderr, "Help options:\n");
@@ -59,7 +60,7 @@ int main(int argc, const char *argv[])
int extra_argc = 0; int extra_argc = 0;
const char *url = NULL; const char *url = NULL;
struct iscsi_url *iscsi_url = NULL; struct iscsi_url *iscsi_url = NULL;
int show_help = 0, show_usage = 0, debug = 0; int show_help = 0, show_usage = 0, debug = 0, size_only=0;
int res; int res;
struct scsi_task *task; struct scsi_task *task;
struct scsi_readcapacity16 *rc16; struct scsi_readcapacity16 *rc16;
@@ -68,6 +69,7 @@ int main(int argc, const char *argv[])
{ "help", '?', POPT_ARG_NONE, &show_help, 0, "Show this help message", NULL }, { "help", '?', POPT_ARG_NONE, &show_help, 0, "Show this help message", NULL },
{ "usage", 0, POPT_ARG_NONE, &show_usage, 0, "Display brief usage message", NULL }, { "usage", 0, POPT_ARG_NONE, &show_usage, 0, "Display brief usage message", NULL },
{ "initiator-name", 'i', POPT_ARG_STRING, &initiator, 0, "Initiatorname to use", "iqn-name" }, { "initiator-name", 'i', POPT_ARG_STRING, &initiator, 0, "Initiatorname to use", "iqn-name" },
{ "size", 's', POPT_ARG_NONE, &size_only, 0, "Print target size only", NULL },
{ "debug", 'd', POPT_ARG_INT, &debug, 0, "Debugging level", "integer" }, { "debug", 'd', POPT_ARG_INT, &debug, 0, "Debugging level", "integer" },
POPT_TABLEEND POPT_TABLEEND
}; };
@@ -156,14 +158,20 @@ int main(int argc, const char *argv[])
exit(10); exit(10);
} }
printf("RETURNED LOGICAL BLOCK ADDRESS:%" PRIu64 "\n", rc16->returned_lba); if (!size_only) {
printf("LOGICAL BLOCK LENGTH IN BYTES:%u\n", rc16->block_length); printf("RETURNED LOGICAL BLOCK ADDRESS:%" PRIu64 "\n", rc16->returned_lba);
printf("P_TYPE:%d PROT_EN:%d\n", rc16->p_type, rc16->prot_en); printf("LOGICAL BLOCK LENGTH IN BYTES:%u\n", rc16->block_length);
printf("P_I_EXPONENT:%d LOGICAL BLOCKS PER PHYSICAL BLOCK EXPONENT:%d\n", rc16->p_i_exp, rc16->lbppbe); printf("P_TYPE:%d PROT_EN:%d\n", rc16->p_type, rc16->prot_en);
printf("LBPME:%d LBPRZ:%d\n", rc16->lbpme, rc16->lbprz); printf("P_I_EXPONENT:%d LOGICAL BLOCKS PER PHYSICAL BLOCK EXPONENT:%d\n", rc16->p_i_exp, rc16->lbppbe);
printf("LOWEST ALIGNED LOGICAL BLOCK ADDRESS:%d\n", rc16->lalba); printf("LBPME:%d LBPRZ:%d\n", rc16->lbpme, rc16->lbprz);
printf("LOWEST ALIGNED LOGICAL BLOCK ADDRESS:%d\n", rc16->lalba);
printf("Total size:%" PRIu64 "\n", rc16->block_length * (rc16->returned_lba + 1)); printf("Total size:%" PRIu64 "\n", rc16->block_length * (rc16->returned_lba + 1));
}
else
{
printf("%" PRIu64 "\n", rc16->block_length * (rc16->returned_lba + 1));
}
iscsi_destroy_url(iscsi_url); iscsi_destroy_url(iscsi_url);