Mercurial > hg > toybox
view toys/posix/env.c @ 668:0ee40175a307
Fix catv to display byte 255 correctly. (It's both M- and ^?.)
author | Rob Landley <rob@landley.net> |
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date | Sat, 06 Oct 2012 01:54:24 -0500 |
parents | 6df4ccc0acbe |
children | 7e846e281e38 |
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/* vi: set sw=4 ts=4: * * env.c - Set the environment for command invocation. * * Copyright 2012 Tryn Mirell <tryn@mirell.org> * * http://opengroup.org/onlinepubs/9699919799/utilities/env.html USE_ENV(NEWTOY(env, "^i", TOYFLAG_USR|TOYFLAG_BIN)) config ENV bool "env" default y help usage: env [-i] [NAME=VALUE...] [command [option...]] Set the environment for command invocation. -i Clear existing environment. */ #include "toys.h" extern char **environ; void env_main(void) { char **ev; char **command = NULL; char *del = "="; if (toys.optflags & 1) clearenv(); for (ev = toys.optargs; *ev != NULL; ev++) { char *env, *val = NULL; env = strtok(*ev, del); if (env) val = strtok(NULL, del); if (val) setenv(env, val, 1); else { command = ev; break; } } if (!command) { char **ep; for (ep = environ; *ep; ep++) xputs(*ep); return; } else xexec(command); }