diff options
Diffstat (limited to 'sg_readcap.c')
| -rw-r--r-- | sg_readcap.c | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/sg_readcap.c b/sg_readcap.c index 88de00cf..b5d7edb2 100644 --- a/sg_readcap.c +++ b/sg_readcap.c @@ -24,7 +24,7 @@ */ -static char * version_str = "3.75 20060106"; +static char * version_str = "3.76 20060623"; #define ME "sg_readcap: " @@ -63,6 +63,7 @@ int main(int argc, char * argv[]) int pmi = 0; int do16 = 0; int verbose = 0; + int ret = 0; unsigned int last_blk_addr, block_size; const char * file_name = 0; const char * cp; @@ -105,7 +106,7 @@ int main(int argc, char * argv[]) case '?': case 'h': usage(); - return 1; + return 0; default: jmp_out = 1; break; @@ -120,7 +121,7 @@ int main(int argc, char * argv[]) if (1 != num) { printf("Bad value after 'lba=' option\n"); usage(); - return 1; + return SG_LIB_SYNTAX_ERROR; } llba = u; if (llba > 0xfffffffeULL) @@ -129,7 +130,7 @@ int main(int argc, char * argv[]) } else if (jmp_out) { fprintf(stderr, "Unrecognized option: %s\n", cp); usage(); - return 1; + return SG_LIB_SYNTAX_ERROR; } } else if (0 == file_name) file_name = cp; @@ -137,30 +138,31 @@ int main(int argc, char * argv[]) fprintf(stderr, "too many arguments, got: %s, not expecting: " "%s\n", file_name, cp); usage(); - return 1; + return SG_LIB_SYNTAX_ERROR; } } if (0 == file_name) { fprintf(stderr, "No <device> argument given\n"); usage(); - return 1; + return SG_LIB_SYNTAX_ERROR; } if ((0 == pmi) && (lba > 0)) { fprintf(stderr, ME "lba can only be non-zero when pmi is set\n"); usage(); - return 1; + return SG_LIB_SYNTAX_ERROR; } if ((sg_fd = sg_cmds_open_device(file_name, (do16 ? 0 /* rw */ : 1), verbose)) < 0) { fprintf(stderr, ME "error opening file: %s: %s\n", file_name, safe_strerror(-sg_fd)); - return 1; + return SG_LIB_FILE_ERROR; } if (! do16) { res = sg_ll_readcap_10(sg_fd, pmi, lba, resp_buff, RCAP_REPLY_LEN, 0, verbose); + ret = res; if (0 == res) { last_blk_addr = ((resp_buff[0] << 24) | (resp_buff[1] << 16) | (resp_buff[2] << 8) | resp_buff[3]); @@ -206,13 +208,15 @@ int main(int argc, char * argv[]) < 0) { fprintf(stderr, ME "error re-opening file: %s (rw): %s\n", file_name, safe_strerror(-sg_fd)); - return 1; + return SG_LIB_FILE_ERROR; } if (verbose) fprintf(stderr, "READ CAPACITY (10) not supported, trying " "READ CAPACITY (16)\n"); } else if (SG_LIB_CAT_ILLEGAL_REQ == res) fprintf(stderr, "bad field in READ CAPACITY (10) cdb\n"); + else if (SG_LIB_CAT_NOT_READY == res) + fprintf(stderr, "READ CAPACITY (10) failed, device not ready\n"); else if (! verbose) fprintf(stderr, "READ CAPACITY (10) failed [res=%d], try " "with '-v'\n", res); @@ -220,6 +224,7 @@ int main(int argc, char * argv[]) if (do16) { res = sg_ll_readcap_16(sg_fd, pmi, llba, resp_buff, RCAP16_REPLY_LEN, 0, verbose); + ret = res; if (0 == res) { for (k = 0, llast_blk_addr = 0; k < 8; ++k) { llast_blk_addr <<= 8; @@ -259,6 +264,8 @@ int main(int argc, char * argv[]) } else if (SG_LIB_CAT_INVALID_OP == res) fprintf(stderr, "READ CAPACITY (16) not supported\n"); + else if (SG_LIB_CAT_NOT_READY == res) + fprintf(stderr, "READ CAPACITY (16) failed, device not ready\n"); else if (SG_LIB_CAT_ILLEGAL_REQ == res) fprintf(stderr, "bad field in READ CAPACITY (10) cdb\n"); else if (! verbose) @@ -267,10 +274,13 @@ int main(int argc, char * argv[]) } if (brief) printf("0x0 0x0\n"); - sg_cmds_close_device(sg_fd); - return 1; good: - sg_cmds_close_device(sg_fd); - return 0; + res = sg_cmds_close_device(sg_fd); + if (res < 0) { + fprintf(stderr, "close error: %s\n", safe_strerror(-res)); + if (0 == ret) + return SG_LIB_FILE_ERROR; + } + return (ret >= 0) ? ret : SG_LIB_CAT_OTHER; } |