Mercurial > hg > toybox
view toys/hello.c @ 551:2548e6e590b2
Add string to mode_t parser
added new function string_to_mode(char *m_string, mode_t base) which
parses a given string and converts it to a mode_t.
If either + or - are part of m_string the permissions are either
added or removed from base.
Currently support for permision copy is missing (e.g. g=u),
but all other flags should work.
Format for m_string: either symbolic modes or octal representation.
symbolic modes:
[auog][[+-=][rwxst]*]
examples:
string_to_mode("u=rwx,g=rw,o=r", 0);
string_to_mode("a-x", 0777);
string_to_mode("0744", 0);
author | Daniel Walter <d.walter@0x90.at> |
---|---|
date | Mon, 19 Mar 2012 19:57:56 -0500 |
parents | f6ffc6685a9e |
children | a3e014fdeb35 |
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/* vi: set sw=4 ts=4: * * hello.c - A hello world program. * * Copyright 2012 Rob Landley <rob@landley.net> * * Not in SUSv4. * See http://opengroup.org/onlinepubs/9699919799/utilities/ USE_HELLO(NEWTOY(hello, "e@d*c#b:a", TOYFLAG_USR|TOYFLAG_BIN)) config HELLO bool "hello" default n help usage: hello [-a] [-b string] [-c number] [-d list] [-e count] [...] A hello world program. You don't need this. Mostly used as an example/skeleton file for adding new commands, occasionally nice to test kernel booting via "init=/bin/hello". */ #include "toys.h" // Hello doesn't use these globals, they're here for example/skeleton purposes. DEFINE_GLOBALS( char *b_string; long c_number; struct arg_list *d_list; long e_count; int more_globals; ) #define TT this.hello #define FLAG_a 1 #define FLAG_b 2 #define FLAG_c 4 #define FLAG_d 8 #define FLAG_e 16 void hello_main(void) { printf("Hello world\n"); if (toys.optflags & FLAG_a) printf("Saw a\n"); if (toys.optflags & FLAG_b) printf("b=%s\n", TT.b_string); if (toys.optflags & FLAG_c) printf("c=%ld\n", TT.c_number); while (TT.d_list) { printf("d=%s\n", TT.d_list->arg); TT.d_list = TT.d_list->next; } if (TT.e_count) printf("e was seen %ld times", TT.e_count); while (*toys.optargs) printf("optarg=%s\n", *(toys.optargs++)); }