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udhcpc: add -o "do not request options by default" switch

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(by L. Gabriel Somlo <somlo AT cmu.edu>)

function                                             old     new   delta
udhcpc_main                                         2513    2554     +41
static.udhcpc_longopts                               226     247     +21
add_param_req_option                                 119     132     +13
packed_usage                                       23952   23964     +12
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 87/0)               Total: 87 bytes
This commit is contained in:
Denis Vlasenko
2008-04-02 13:04:19 +00:00
parent 0edbdd8ac8
commit 2e4c3c4cc3
6 changed files with 30 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
include/usage.h
View File

@ -4116,7 +4116,7 @@
"Adjust filesystem options on ext[23] filesystems"
#define udhcpc_trivial_usage \
"[-Cfbnqtv] [-c CID] [-V VCLS] [-H HOSTNAME] [-i INTERFACE]\n" \
"[-Cfbnqtvo] [-c CID] [-V VCLS] [-H HOSTNAME] [-i INTERFACE]\n" \
" [-p pidfile] [-r IP] [-s script] [-O dhcp-option]..." USE_FEATURE_UDHCP_PORT(" [-P N]")
#define udhcpc_full_usage \
USE_GETOPT_LONG( \
@ -4127,17 +4127,18 @@
"\n -C,--clientid-none Suppress default client identifier" \
"\n -p,--pidfile=file Create pidfile" \
"\n -r,--request=IP IP address to request" \
"\n -s,--script=file Run file at dhcp events (default /usr/share/udhcpc/default.script)" \
"\n -s,--script=file Run file at DHCP events (default "CONFIG_DHCPC_DEFAULT_SCRIPT")" \
"\n -t,--retries=N Send up to N request packets" \
"\n -T,--timeout=N Try to get a lease for N seconds (default 3)" \
"\n -A,--tryagain=N Wait N seconds (default 20) after failure" \
"\n -O,--request-option=OPT Request DHCP option OPT (cumulative)" \
"\n -o,--no-default-options Do not request any options (unless -O is also given)" \
"\n -f,--foreground Run in foreground" \
"\n -b,--background Background if lease is not immediately obtained" \
"\n -S,--syslog Log to syslog too" \
"\n -n,--now Exit with failure if lease is not immediately obtained" \
"\n -q,--quit Quit after obtaining lease" \
"\n -R,--release Release IP on quit" \
"\n -O,--request-option=OPT Request DHCP option OPT from server" \
USE_FEATURE_UDHCP_PORT( \
"\n -P,--client-port N Use port N instead of default 68" \
) \
@ -4153,17 +4154,18 @@
"\n -C Suppress default client identifier" \
"\n -p file Create pidfile" \
"\n -r IP IP address to request" \
"\n -s file Run file at dhcp events (default /usr/share/udhcpc/default.script)" \
"\n -s file Run file at DHCP events (default "CONFIG_DHCPC_DEFAULT_SCRIPT")" \
"\n -t N Send up to N request packets" \
"\n -T N Try to get a lease for N seconds (default 3)" \
"\n -A N Wait N seconds (default 20) after failure" \
"\n -O OPT Request DHCP option OPT (cumulative)" \
"\n -o Do not request any options (unless -O is also given)" \
"\n -f Run in foreground" \
"\n -b Background if lease is not immediately obtained" \
"\n -S Log to syslog too" \
"\n -n Exit with failure if lease is not immediately obtained" \
"\n -q Quit after obtaining lease" \
"\n -R Release IP on quit" \
"\n -O OPT Request DHCP option OPT from server" \
USE_FEATURE_UDHCP_PORT( \
"\n -P N Use port N instead of default 68" \
) \