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renice(1) rework

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sin 2014-11-17 16:32:30 +00:00
parent 4dc2b783b8
commit ee1e90ebdc
1 changed files with 11 additions and 9 deletions
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20
renice.c
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@ -1,4 +1,5 @@
/* See LICENSE file for copyright and license details. */ /* See LICENSE file for copyright and license details. */
#include <errno.h>
#include <limits.h> #include <limits.h>
#include <pwd.h> #include <pwd.h>
#include <stdio.h> #include <stdio.h>
@ -23,6 +24,8 @@ main(int argc, char *argv[])
const char *adj = NULL; const char *adj = NULL;
long val; long val;
int i, which = PRIO_PROCESS, status = 0; int i, which = PRIO_PROCESS, status = 0;
struct passwd *pw;
int who;
ARGBEGIN { ARGBEGIN {
case 'n': case 'n':
@ -47,20 +50,19 @@ main(int argc, char *argv[])
val = estrtol(adj, 10); val = estrtol(adj, 10);
for (i = 0; i < argc; i++) { for (i = 0; i < argc; i++) {
int who = -1; who = -1;
if (which == PRIO_USER) { if (which == PRIO_USER) {
const struct passwd *pwd;
errno = 0; errno = 0;
do pwd = getpwnam(argv[i]); while (errno == EINTR); pw = getpwnam(argv[i]);
if (pwd) if (!pw) {
who = pwd->pw_uid; if (errno != 0)
else if (errno != 0) { weprintf("getpwnam %s:", argv[i]);
perror("can't read passwd"); else
weprintf("getpwnam %s: no user found\n", argv[i]);
status = 1; status = 1;
continue; continue;
} }
who = pw->pw_uid;
} }
if (who < 0) if (who < 0)
who = strtop(argv[i]); who = strtop(argv[i]);