Xen devel - Sep 2011 - [PATCH] xl: fixup command line handling for several commands

# HG changeset patch
# User Ian Campbell <ian.campbell@citrix.com>
# Date 1317217065 -3600
# Node ID 945b1d50724b3d68c562859a0e38f6ee4d9fe612
# Parent  b099e064f9970f27bf7dbf24b97715371240bb4c
xl: fixup command line handling for several commands.

def_getopt already checks for a minimum number of arguments for us.

"xl save" simply need to use the correct argument for that value,
contrary to the change I made in 23876:b113d626cfaf

"xl block-list" does not need to check for at least 2 arguments, since
it''s already been done by def_getopt.

"xl network-list" would previous accept zero arguments and just print
the table header. Insist on a domain argument.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>

diff -r b099e064f997 -r 945b1d50724b tools/libxl/xl_cmdimpl.c
--- a/tools/libxl/xl_cmdimpl.c	Wed Sep 28 14:18:19 2011 +0100
+++ b/tools/libxl/xl_cmdimpl.c	Wed Sep 28 14:37:45 2011 +0100
@@ -2921,7 +2921,7 @@ int main_save(int argc, char **argv)
     int checkpoint = 0;
     int opt;
 
-    while ((opt = def_getopt(argc, argv, "c", "save", 1))
!= -1) {
+    while ((opt = def_getopt(argc, argv, "c", "save", 2))
!= -1) {
         switch (opt) {
         case 0: case 2:
             return opt;
@@ -2931,7 +2931,7 @@ int main_save(int argc, char **argv)
         }
     }
 
-    if (argc-optind < 2 || argc-optind > 3) {
+    if (argc-optind > 3) {
         help("save");
         return 2;
     }
@@ -4080,7 +4080,7 @@ int main_networklist(int argc, char **ar
     libxl_nicinfo *nics;
     unsigned int nb, i;
 
-    if ((opt = def_getopt(argc, argv, "", "network-list",
0)) != -1)
+    if ((opt = def_getopt(argc, argv, "", "network-list",
1)) != -1)
         return opt;
 
     /*      Idx  BE   MAC   Hdl  Sta  evch txr/rxr  BE-path */
@@ -4151,10 +4151,6 @@ int main_blockattach(int argc, char **ar
 
     if ((opt = def_getopt(argc, argv, "", "block-attach",
2)) != -1)
         return opt;
-    if ((argc-optind < 2)) {
-        help("block-attach");
-        return 2;
-    }
 
     if (domain_qualifier_to_domid(argv[optind], &fe_domid, 0) < 0) {
         fprintf(stderr, "%s is an invalid domain identifier\n",
argv[optind]);

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Ian Campbell writes ("[Xen-devel] [PATCH] xl: fixup command line handling
for several commands"):
> xl: fixup command line handling for several commands.
How entertaining.

Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>

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