[PATCH] daemon: lvm: change the separator character to '\r'
Commit b91b39e06ab7eb9b9b06c8b4dfef2ef9f381ab19 changed the separator to ':', although this creates parsing issues when there are fields with colons (for example lv_tags=imgbased:pool). Change once more the separator, but this time using a non-printable character such as '\r': while it will produce uglier debug logs, this should greatly reduce the possibilities of conflicts with texts of metadata. --- generator/daemon.ml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/generator/daemon.ml b/generator/daemon.ml index d8dc9cf..1d79126 100644 --- a/generator/daemon.ml +++ b/generator/daemon.ml @@ -563,7 +563,7 @@ cleanup_free_mountable (mountable_t *mountable) pr " fprintf (stderr, \"%%s: failed: string finished early, around token %%s\\n\", __func__, \"%s\");\n" name; pr " return -1;\n"; pr " }\n"; - pr " p = strchrnul (tok, ':');\n"; + pr " p = strchrnul (tok, '\\r');\n"; pr " if (*p) next = p+1; else next = NULL;\n"; pr " *p = '\\0';\n"; (match coltype with @@ -633,7 +633,7 @@ cleanup_free_mountable (mountable_t *mountable) pr " r = command (&out, &err,\n"; pr " \"lvm\", \"%ss\",\n" typ; pr " \"-o\", lvm_%s_cols, \"--unbuffered\", \"--noheadings\",\n" typ; - pr " \"--nosuffix\", \"--separator\", \":\", \"--units\", \"b\", NULL);\n"; + pr " \"--nosuffix\", \"--separator\", \"\\r\", \"--units\", \"b\", NULL);\n"; pr " if (r == -1) {\n"; pr " reply_with_error (\"%%s\", err);\n"; pr " free (out);\n"; -- 2.7.4
On Tue, Jul 26, 2016 at 03:24:08PM +0200, Pino Toscano wrote:
Commit b91b39e06ab7eb9b9b06c8b4dfef2ef9f381ab19 changed the separator to ':', although this creates parsing issues when there are fields with colons (for example lv_tags=imgbased:pool).
Change once more the separator, but this time using a non-printable character such as '\r': while it will produce uglier debug logs, this should greatly reduce the possibilities of conflicts with texts of metadata. --- generator/daemon.ml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/generator/daemon.ml b/generator/daemon.ml index d8dc9cf..1d79126 100644 --- a/generator/daemon.ml +++ b/generator/daemon.ml @@ -563,7 +563,7 @@ cleanup_free_mountable (mountable_t *mountable) pr " fprintf (stderr, \"%%s: failed: string finished early, around token %%s\\n\", __func__, \"%s\");\n" name; pr " return -1;\n"; pr " }\n"; - pr " p = strchrnul (tok, ':');\n"; + pr " p = strchrnul (tok, '\\r');\n"; pr " if (*p) next = p+1; else next = NULL;\n"; pr " *p = '\\0';\n"; (match coltype with @@ -633,7 +633,7 @@ cleanup_free_mountable (mountable_t *mountable) pr " r = command (&out, &err,\n"; pr " \"lvm\", \"%ss\",\n" typ; pr " \"-o\", lvm_%s_cols, \"--unbuffered\", \"--noheadings\",\n" typ; - pr " \"--nosuffix\", \"--separator\", \":\", \"--units\", \"b\", NULL);\n"; + pr " \"--nosuffix\", \"--separator\", \"\\r\", \"--units\", \"b\", NULL);\n"; pr " if (r == -1) {\n"; pr " reply_with_error (\"%%s\", err);\n"; pr " free (out);\n";
Slightly surprised this works, but yes, ACK :-) Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v
participants (2)
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Pino Toscano -
Richard W.M. Jones