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openvt: fix gross mismatch between us and "standard" openvt.

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standard one even has different syntax!
  std: "openvt -c 12", we: "openvt 12"
  std: "openvt top", we: complain that "top" is not a number.
openvt: implement -c -w -s (-l -f -v are also accepted but ingnored)

openvt_main                                          188     343    +155
vfork_child                                            -      67     +67
not_vt_fd                                              -      23     +23
packed_usage                                       23932   23952     +20
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 801344     641    7380  809365   c5995 busybox_old
 801617     641    7380  809638   c5aa6 busybox_unstripped
This commit is contained in:
Denis Vlasenko
2008-03-27 16:26:35 +00:00
parent 72b3442aeb
commit 95891fc016
3 changed files with 158 additions and 17 deletions
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10
include/usage.h
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@@ -2818,9 +2818,15 @@
"to standard output. With no FILE or when FILE is -, read standard input."
#define openvt_trivial_usage \
"VTNUM COMMAND [ARGS...]"
"[-c NUM] [-sw] [COMMAND [ARGS]]"
#define openvt_full_usage \
"Start a command on a new virtual terminal"
"Start COMMAND on a new virtual terminal\n" \
"\nOptions:" \
"\n -c Use specified VT" \
"\n -s Switch to the VT" \
/* "\n -l Run COMMAND as login shell (by prepending '-')" */ \
"\n -w Wait for COMMAND to exit" \
#define openvt_example_usage \
"openvt 2 /bin/ash\n"