[hackers] [sbase] Use getpriority()/setpriority() instead of deprecated nice() || sin

[git]

commit 203b52c38a447e6e1cadcab4cd366cd5bd86be94
Author: sin <s...@2f30.org>
Date:   Tue Jan 28 17:10:09 2014 +0000

    Use getpriority()/setpriority() instead of deprecated nice()
    
    This is now similar to how renice(1) is implemented.

diff --git a/nice.c b/nice.c
index 7755b90..0ef6256 100644
--- a/nice.c
+++ b/nice.c
@@ -3,6 +3,8 @@
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <sys/resource.h>
+#include <sys/time.h>
 #include <unistd.h>
 #include "util.h"
 
@@ -12,6 +14,7 @@ int
 main(int argc, char **argv)
 {
        long val = 10;
+       int savederrno;
 
        ARGBEGIN {
        case 'n':
@@ -26,15 +29,18 @@ main(int argc, char **argv)
                usage();
 
        errno = 0;
-       nice((int)MAX(INT_MIN, MIN(val, INT_MAX)));
-       if(errno != 0)
-               perror("can't adjust niceness");
+       val += getpriority(PRIO_PROCESS, 0);
+       if (errno != 0)
+               weprintf("getpriority:");
+       val = MAX(PRIO_MIN, MIN(val, PRIO_MAX));
+       if (setpriority(PRIO_PROCESS, 0, val) != 0)
+               weprintf("setpriority:");
 
        /* POSIX specifies the nice failure still invokes the command */
        execvp(argv[0], argv);
-       /* reached only on failure */
-       perror(argv[0]);
-       return (errno == ENOENT)? 127 : 126;
+       savederrno = errno;
+       weprintf("execvp %s:", argv[0]);
+       return (savederrno == ENOENT)? 127 : 126;
 }
 
 static void