diff options
author | Eric Andersen <andersen@codepoet.org> | 2003-06-20 13:01:58 +0400 |
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committer | Eric Andersen <andersen@codepoet.org> | 2003-06-20 13:01:58 +0400 |
commit | 8876fb2f59a0b515b3121d5894933eef88ce566a (patch) | |
tree | f67de9320202043aca8ded20fb80d668c3b0c2d8 /coreutils/env.c | |
parent | dfce3536ace2bcd38bdd3731841998ce344d786e (diff) |
last_patch89 from vodz:
Manuel,
I rewrite bb_getopt_ulflags() function for more universal usage.
My version support now:
- options with arguments (optional arg as GNU extension also)
- complementaly and/or incomplementaly and/or incongruously and/or list
options
- long_opt (all applets may have long option, add supporting is trivial)
This realisation full compatibile from your version.
Code size grow 480 bytes, but only coreutils/* over compensate this size
after using new function. Last patch reduced over 800 bytes and not full
applied to all. "mkdir" and "mv" applets have long_opt now for demonstrate
trivial addition support long_opt with usage new bb_getopt_ulflags().
Complementaly and/or incomplementaly and/or incongruously and/or list options
logic is not trivial, but new "cut" and "grep" applets using this logic
for examples with full demostrating. New "grep" applet reduced over 300
bytes.
Mark,
Also. I removed bug from "grep" applet.
$ echo a b | busybox grep -e a b
a b
a b
But right is printing one only.
--w
vodz
Diffstat (limited to 'coreutils/env.c')
-rw-r--r-- | coreutils/env.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/coreutils/env.c b/coreutils/env.c index db13b3aed..eb761e9e9 100644 --- a/coreutils/env.c +++ b/coreutils/env.c @@ -44,20 +44,13 @@ extern int env_main(int argc, char** argv) { char **ep, *p; char *cleanenv[1] = { NULL }; - int ch; + unsigned long opt; - while ((ch = getopt(argc, argv, "iu:")) > 0) { - switch(ch) { - case 'i': + opt = bb_getopt_ulflags(argc, argv, "iu:", &p); + if(opt & 1) environ = cleanenv; - break; - case 'u': - unsetenv(optarg); - break; - default: - bb_show_usage(); - } - } + if(opt & 2) + unsetenv(p); argv += optind; |