/* Typical crazy output from the xfs_info command:
*
* meta-data=/dev/sda1 isize=256 agcount=4, agsize=6392 blks
* = sectsz=512 attr=2
*[ = crc=0 ]
* data = bsize=4096 blocks=25568, imaxpct=25
* = sunit=0 swidth=0 blks
* naming =version 2 bsize=4096 ascii-ci=0
* log =internal bsize=4096 blocks=1200, version=2
* = sectsz=512 sunit=0 blks, lazy-count=1
* realtime =none extsz=4096 blocks=0, rtextents=0
*
* [...] line only appears in Fedora >= 21
*
* We may need to revisit this parsing code if the output changes
* in future.
*/
static guestfs_int_xfsinfo *
parse_xfs_info (char **lines)
{
guestfs_int_xfsinfo *ret;
CLEANUP_FREE char *section = NULL; /* first column, eg "meta-data", "data" */
char *p;
size_t i;
ret = malloc (sizeof *ret);
if (ret == NULL) {
reply_with_error ("malloc");
return NULL;
}
/* Initialize fields to NULL or -1 so the caller can tell which fields
* were updated in the code below.
*/
ret->xfs_mntpoint = NULL;
ret->xfs_inodesize = -1;
ret->xfs_agcount = -1;
ret->xfs_agsize = -1;
ret->xfs_sectsize = -1;
ret->xfs_attr = -1;
ret->xfs_blocksize = -1;
ret->xfs_datablocks = -1;
ret->xfs_imaxpct = -1;
ret->xfs_sunit = -1;
ret->xfs_swidth = -1;
ret->xfs_dirversion = -1;
ret->xfs_dirblocksize = -1;
ret->xfs_cimode = -1;
ret->xfs_logname = NULL;
ret->xfs_logblocksize = -1;
ret->xfs_logblocks = -1;
ret->xfs_logversion = -1;
ret->xfs_logsectsize = -1;
ret->xfs_logsunit = -1;
ret->xfs_lazycount = -1;
ret->xfs_rtname = NULL;
ret->xfs_rtextsize = -1;
ret->xfs_rtblocks = -1;
ret->xfs_rtextents = -1;
for (i = 0; lines[i] != NULL; ++i) {
if (verbose)
fprintf (stderr, "xfs_info: lines[%zu] = \'%s\'\n", i, lines[i]);
if (c_isalpha (lines[i][0])) {
free (section);
section = split_strdup (lines[i]);
if (!section) goto error;
if (verbose)
fprintf (stderr, "xfs_info: new section %s\n", section);
}
if ((p = strstr (lines[i], "meta-data="))) {
ret->xfs_mntpoint = split_strdup (p + 10);
if (ret->xfs_mntpoint == NULL) goto error;
}
if ((p = strstr (lines[i], "isize="))) {
CLEANUP_FREE char *buf = split_strdup (p + 6);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_inodesize, buf) == -1)
goto error;
}
if ((p = strstr (lines[i], "agcount="))) {
CLEANUP_FREE char *buf = split_strdup (p + 8);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_agcount, buf) == -1)
goto error;
}
if ((p = strstr (lines[i], "agsize="))) {
CLEANUP_FREE char *buf = split_strdup (p + 7);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_agsize, buf) == -1)
goto error;
}
if ((p = strstr (lines[i], "sectsz="))) {
if (section) {
CLEANUP_FREE char *buf = split_strdup (p + 7);
if (buf == NULL) goto error;
if (STREQ (section, "meta-data")) {
if (parse_uint32 (&ret->xfs_sectsize, buf) == -1)
goto error;
} else if (STREQ (section, "log")) {
if (parse_uint32 (&ret->xfs_logsectsize, buf) == -1)
goto error;
}
}
}
if ((p = strstr (lines[i], "attr="))) {
CLEANUP_FREE char *buf = split_strdup (p + 5);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_attr, buf) == -1)
goto error;
}
if ((p = strstr (lines[i], "bsize="))) {
if (section) {
CLEANUP_FREE char *buf = split_strdup (p + 6);
if (buf == NULL) goto error;
if (STREQ (section, "data")) {
if (parse_uint32 (&ret->xfs_blocksize, buf) == -1)
goto error;
} else if (STREQ (section, "naming")) {
if (parse_uint32 (&ret->xfs_dirblocksize, buf) == -1)
goto error;
} else if (STREQ (section, "log")) {
if (parse_uint32 (&ret->xfs_logblocksize, buf) == -1)
goto error;
}
}
}
if ((p = strstr (lines[i], "blocks="))) {
if (section) {
CLEANUP_FREE char *buf = split_strdup (p + 7);
if (buf == NULL) goto error;
if (STREQ (section, "data")) {
if (parse_uint64 (&ret->xfs_datablocks, buf) == -1)
goto error;
} else if (STREQ (section, "log")) {
if (parse_uint32 (&ret->xfs_logblocks, buf) == -1)
goto error;
} else if (STREQ (section, "realtime")) {
if (parse_uint64 (&ret->xfs_rtblocks, buf) == -1)
goto error;
}
}
}
if ((p = strstr (lines[i], "imaxpct="))) {
CLEANUP_FREE char *buf = split_strdup (p + 8);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_imaxpct, buf) == -1)
goto error;
}
if ((p = strstr (lines[i], "sunit="))) {
if (section) {
CLEANUP_FREE char *buf = split_strdup (p + 6);
if (buf == NULL) goto error;
if (STREQ (section, "data")) {
if (parse_uint32 (&ret->xfs_sunit, buf) == -1)
goto error;
} else if (STREQ (section, "log")) {
if (parse_uint32 (&ret->xfs_logsunit, buf) == -1)
goto error;
}
}
}
if ((p = strstr (lines[i], "swidth="))) {
CLEANUP_FREE char *buf = split_strdup (p + 7);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_swidth, buf) == -1)
goto error;
}
if ((p = strstr (lines[i], "naming =version "))) {
CLEANUP_FREE char *buf = split_strdup (p + 18);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_dirversion, buf) == -1)
goto error;
}
if ((p = strstr (lines[i], "ascii-ci="))) {
CLEANUP_FREE char *buf = split_strdup (p + 9);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_cimode, buf) == -1)
goto error;
}
if ((p = strstr (lines[i], "log ="))) {
ret->xfs_logname = split_strdup (p + 10);
if (ret->xfs_logname == NULL) goto error;
}
if ((p = strstr (lines[i], "version="))) {
CLEANUP_FREE char *buf = split_strdup (p + 8);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_logversion, buf) == -1)
goto error;
}
if ((p = strstr (lines[i], "lazy-count="))) {
CLEANUP_FREE char *buf = split_strdup (p + 11);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_lazycount, buf) == -1)
goto error;
}
if ((p = strstr (lines[i], "realtime ="))) {
ret->xfs_rtname = split_strdup (p + 10);
if (ret->xfs_rtname == NULL) goto error;
}
if ((p = strstr (lines[i], "rtextents="))) {
CLEANUP_FREE char *buf = split_strdup (p + 10);
if (buf == NULL) goto error;
if (parse_uint64 (&ret->xfs_rtextents, buf) == -1)
goto error;
}
}
if (ret->xfs_mntpoint == NULL) {
ret->xfs_mntpoint = strdup ("");
if (ret->xfs_mntpoint == NULL) goto error;
}
if (ret->xfs_logname == NULL) {
ret->xfs_logname = strdup ("");
if (ret->xfs_logname == NULL) goto error;
}
if (ret->xfs_rtname == NULL) {
ret->xfs_rtname = strdup ("");
if (ret->xfs_rtname == NULL) goto error;
}
return ret;
error:
free (ret->xfs_mntpoint);
free (ret->xfs_logname);
free (ret->xfs_rtname);
free (ret);
return NULL;
}
/* Typical crazy output from the xfs_info command:
*
* meta-data=/dev/sda1 isize=256 agcount=4, agsize=6392 blks
* = sectsz=512 attr=2
* data = bsize=4096 blocks=25568, imaxpct=25
* = sunit=0 swidth=0 blks
* naming =version 2 bsize=4096 ascii-ci=0
* log =internal bsize=4096 blocks=1200, version=2
* = sectsz=512 sunit=0 blks, lazy-count=1
* realtime =none extsz=4096 blocks=0, rtextents=0
*
* We may need to revisit this parsing code if the output changes
* in future.
*/
static guestfs_int_xfsinfo *
parse_xfs_info (char **lines)
{
guestfs_int_xfsinfo *ret;
char *buf = NULL, *p;
size_t i;
ret = malloc (sizeof *ret);
if (ret == NULL) {
reply_with_error ("malloc");
return NULL;
}
/* Initialize fields to NULL or -1 so the caller can tell which fields
* were updated in the code below.
*/
ret->xfs_mntpoint = NULL;
ret->xfs_inodesize = -1;
ret->xfs_agcount = -1;
ret->xfs_agsize = -1;
ret->xfs_sectsize = -1;
ret->xfs_attr = -1;
ret->xfs_blocksize = -1;
ret->xfs_datablocks = -1;
ret->xfs_imaxpct = -1;
ret->xfs_sunit = -1;
ret->xfs_swidth = -1;
ret->xfs_dirversion = -1;
ret->xfs_dirblocksize = -1;
ret->xfs_cimode = -1;
ret->xfs_logname = NULL;
ret->xfs_logblocksize = -1;
ret->xfs_logblocks = -1;
ret->xfs_logversion = -1;
ret->xfs_logsectsize = -1;
ret->xfs_logsunit = -1;
ret->xfs_lazycount = -1;
ret->xfs_rtname = NULL;
ret->xfs_rtextsize = -1;
ret->xfs_rtblocks = -1;
ret->xfs_rtextents = -1;
for (i = 0; lines[i] != NULL; ++i) {
if ((p = strstr (lines[i], "meta-data="))) {
ret->xfs_mntpoint = split_strdup (p + 10);
if (ret->xfs_mntpoint == NULL) goto error;
}
if ((p = strstr (lines[i], "isize="))) {
buf = split_strdup (p + 6);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_inodesize, buf) == -1)
goto error;
free (buf);
}
if ((p = strstr (lines[i], "agcount="))) {
buf = split_strdup (p + 8);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_agcount, buf) == -1)
goto error;
free (buf);
}
if ((p = strstr (lines[i], "agsize="))) {
buf = split_strdup (p + 7);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_agsize, buf) == -1)
goto error;
free (buf);
}
if ((p = strstr (lines[i], "sectsz="))) {
buf = split_strdup (p + 7);
if (buf == NULL) goto error;
if (i == 1) {
if (parse_uint32 (&ret->xfs_sectsize, buf) == -1)
goto error;
free (buf);
} else if (i == 6) {
if (parse_uint32 (&ret->xfs_logsectsize, buf) == -1)
goto error;
free (buf);
} else goto error;
}
if ((p = strstr (lines[i], "attr="))) {
buf = split_strdup (p + 5);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_attr, buf) == -1)
goto error;
free (buf);
}
if ((p = strstr (lines[i], "bsize="))) {
buf = split_strdup (p + 6);
if (buf == NULL) goto error;
if (i == 2) {
if (parse_uint32 (&ret->xfs_blocksize, buf) == -1)
goto error;
free (buf);
} else if (i == 4) {
if (parse_uint32 (&ret->xfs_dirblocksize, buf) == -1)
goto error;
free (buf);
} else if (i == 5) {
if (parse_uint32 (&ret->xfs_logblocksize, buf) == -1)
goto error;
free (buf);
} else goto error;
}
if ((p = strstr (lines[i], "blocks="))) {
buf = split_strdup (p + 7);
if (buf == NULL) goto error;
if (i == 2) {
if (parse_uint64 (&ret->xfs_datablocks, buf) == -1)
goto error;
free (buf);
} else if (i == 5) {
if (parse_uint32 (&ret->xfs_logblocks, buf) == -1)
goto error;
free (buf);
} else if (i == 7) {
if (parse_uint64 (&ret->xfs_rtblocks, buf) == -1)
goto error;
free (buf);
} else goto error;
}
if ((p = strstr (lines[i], "imaxpct="))) {
buf = split_strdup (p + 8);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_imaxpct, buf) == -1)
goto error;
free (buf);
}
if ((p = strstr (lines[i], "sunit="))) {
buf = split_strdup (p + 6);
if (buf == NULL) goto error;
if (i == 3) {
if (parse_uint32 (&ret->xfs_sunit, buf) == -1)
goto error;
free (buf);
} else if (i == 6) {
if (parse_uint32 (&ret->xfs_logsunit, buf) == -1)
goto error;
free (buf);
} else goto error;
}
if ((p = strstr (lines[i], "swidth="))) {
buf = split_strdup (p + 7);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_swidth, buf) == -1)
goto error;
free (buf);
}
if ((p = strstr (lines[i], "naming =version "))) {
buf = split_strdup (p + 18);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_dirversion, buf) == -1)
goto error;
free (buf);
}
if ((p = strstr (lines[i], "ascii-ci="))) {
buf = split_strdup (p + 9);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_cimode, buf) == -1)
goto error;
free (buf);
}
if ((p = strstr (lines[i], "log ="))) {
ret->xfs_logname = split_strdup (p + 10);
if (ret->xfs_logname == NULL) goto error;
}
if ((p = strstr (lines[i], "version="))) {
buf = split_strdup (p + 8);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_logversion, buf) == -1)
goto error;
free (buf);
}
if ((p = strstr (lines[i], "lazy-count="))) {
buf = split_strdup (p + 11);
if (buf == NULL) goto error;
if (parse_uint32 (&ret->xfs_lazycount, buf) == -1)
goto error;
free (buf);
}
if ((p = strstr (lines[i], "realtime ="))) {
ret->xfs_rtname = split_strdup (p + 10);
if (ret->xfs_rtname == NULL) goto error;
}
if ((p = strstr (lines[i], "rtextents="))) {
buf = split_strdup (p + 10);
if (buf == NULL) goto error;
if (parse_uint64 (&ret->xfs_rtextents, buf) == -1)
goto error;
free (buf);
}
}
if (ret->xfs_mntpoint == NULL) {
ret->xfs_mntpoint = strdup ("");
if (ret->xfs_mntpoint == NULL) goto error;
}
if (ret->xfs_logname == NULL) {
ret->xfs_logname = strdup ("");
if (ret->xfs_logname == NULL) goto error;
}
if (ret->xfs_rtname == NULL) {
ret->xfs_rtname = strdup ("");
if (ret->xfs_rtname == NULL) goto error;
}
return ret;
error:
free (buf);
free (ret->xfs_mntpoint);
free (ret->xfs_logname);
free (ret->xfs_rtname);
free (ret);
return NULL;
}
