Re: [libvirt] [PATCH] virsh: Convert escape sequence string to uppercase
On 12/13/2011 01:34 AM, Michal Privoznik wrote:
Macro for translating escape sequence to char expects it to be
all uppercase. Without this, various lowercase sequences are
malformed: e.g. ^e gets translated to %.
---
tools/virsh.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/tools/virsh.c b/tools/virsh.c
index d58b827..ff8b3d2 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -17776,6 +17776,11 @@ vshParseArgv(vshControl *ctl, int argc, char **argv)
if ((len == 2 && *optarg == '^') ||
(len == 1 && *optarg != '^')) {
ctl->escapeChar = optarg;
+ while (*optarg) {
+ if (islower(*optarg))
+ *optarg = toupper(*optarg);
+ optarg++;
+ }
This should be using functions gnulib's "c-ctype.h", so that we are
locale-independent. For that matter, c_toupper is nicer than toupper,
in that it is intentionally well-defined on all inputs, while toupper
requires pre-filtering with islower.
Also, why do we need a while loop? We only need to convert one byte,
since we just validated length. And if the user _didn't_ pass the '^a'
syntax, but passed a single character, I don't think we want to convert
optarg[0].
That is, I think this one-liner is a better patch:
diff --git i/tools/virsh.c w/tools/virsh.c
index a95784d..049fd24 100644
--- i/tools/virsh.c
+++ w/tools/virsh.c
@@ -17781,6 +17781,7 @@ vshParseArgv(vshControl *ctl, int argc, char **argv)
if ((len == 2 && *optarg == '^') ||
(len == 1 && *optarg != '^')) {
+ optarg[1] = c_toupper(optarg[1]);
ctl->escapeChar = optarg;
} else {
vshError(ctl, _("Invalid string '%s' for escape
sequence"),
--
Eric Blake eblake(a)redhat.com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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