Mercurial > hg > toybox
diff toys/pending/renice.c @ 978:6d3c39cb8a9d
Cleanup renice and implement '|' (required option) in argument parsing.
author | Rob Landley <rob@landley.net> |
---|---|
date | Wed, 31 Jul 2013 03:24:58 -0500 |
parents | 9a96527bea94 |
children |
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--- a/toys/pending/renice.c Mon Jul 29 21:16:55 2013 -0500 +++ b/toys/pending/renice.c Wed Jul 31 03:24:58 2013 -0500 @@ -5,7 +5,7 @@ * See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/ * See http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/cmdbehav.html -USE_RENICE(NEWTOY(renice, "gpun#", TOYFLAG_BIN)) +USE_RENICE(NEWTOY(renice, "<1gpun#|", TOYFLAG_BIN)) config RENICE bool "renice" @@ -21,28 +21,29 @@ long nArgu; ) -void renice_main (void) { - int ii; - int which = toys.optflags & FLAG_g ? PRIO_PGRP : - toys.optflags & FLAG_u ? PRIO_USER : - PRIO_PROCESS; +void renice_main(void) { + int which = (toys.optflags & FLAG_g) ? PRIO_PGRP : + ((toys.optflags & FLAG_u) ? PRIO_USER : PRIO_PROCESS); + char **arg; - if (!(toys.optflags & FLAG_n)) error_exit ("no increment given"); + for (arg = toys.optargs; *arg; arg++) { + char *s = *arg; + int id = -1; - for (ii = 0; ii < toys.optc; ii++) { - id_t id; + if (toys.optflags & FLAG_u) { + struct passwd *p = getpwnam(s); + if (p) id = p->pw_uid; + } else { + id = strtol(s, &s, 10); + if (*s) id = -1; + } - if (isdigit (toys.optargs[ii][0])) id = strtoul (toys.optargs[ii], 0, 10); - else if (toys.optflags & FLAG_u) id = getpwnam (toys.optargs[ii]) -> pw_uid; - else { - error_msg ("not a number: %s", toys.optargs[ii]); - toys.exitval = 1; + if (id < 0) { + error_msg("bad '%s'", *arg); continue; } - if (setpriority (which, id, getpriority (which, id) + TT.nArgu) < 0) { - error_msg ("failed to setpriority of %d", id); - toys.exitval = 1; - } + if (setpriority(which, id, getpriority(which, id)+TT.nArgu) < 0) + perror_msg("setpriority %d", id); } }