* SUCH DAMAGE.
*/
+ /* 1999-02-22 Arkadiusz Miśkiewicz <misiek@pld.ORG.PL>
+ * - added Native Language Support
+ */
+
#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <stdio.h>
#include <pwd.h>
#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include "nls.h"
+#include "c.h"
+#include "closestream.h"
+
+static const char *idtype[] = {
+ [PRIO_PROCESS] = N_("process ID"),
+ [PRIO_PGRP] = N_("process group ID"),
+ [PRIO_USER] = N_("user ID"),
+};
-int donice(int,int,int);
+static void __attribute__((__noreturn__)) usage(void)
+{
+ FILE *out = stdout;
+ fputs(USAGE_HEADER, out);
+ fprintf(out,
+ _(" %1$s [-n] <priority> [-p|--pid] <pid>...\n"
+ " %1$s [-n] <priority> -g|--pgrp <pgid>...\n"
+ " %1$s [-n] <priority> -u|--user <user>...\n"),
+ program_invocation_short_name);
+
+ fputs(USAGE_SEPARATOR, out);
+ fputs(_("Alter the priority of running processes.\n"), out);
+
+ fputs(USAGE_OPTIONS, out);
+ fputs(_(" -n, --priority <num> specify the nice increment value\n"), out);
+ fputs(_(" -p, --pid <id> interpret argument as process ID (default)\n"), out);
+ fputs(_(" -g, --pgrp <id> interpret argument as process group ID\n"), out);
+ fputs(_(" -u, --user <name>|<id> interpret argument as username or user ID\n"), out);
+ fputs(USAGE_SEPARATOR, out);
+ printf(USAGE_HELP_OPTIONS(24));
+ printf(USAGE_MAN_TAIL("renice(1)"));
+ exit(EXIT_SUCCESS);
+}
+
+static int getprio(const int which, const int who, int *prio)
+{
+ errno = 0;
+ *prio = getpriority(which, who);
+ if (*prio == -1 && errno) {
+ warn(_("failed to get priority for %d (%s)"), who, idtype[which]);
+ return -errno;
+ }
+ return 0;
+}
+
+static int donice(const int which, const int who, const int prio)
+{
+ int oldprio, newprio;
+
+ if (getprio(which, who, &oldprio) != 0)
+ return 1;
+ if (setpriority(which, who, prio) < 0) {
+ warn(_("failed to set priority for %d (%s)"), who, idtype[which]);
+ return 1;
+ }
+ if (getprio(which, who, &newprio) != 0)
+ return 1;
+ printf(_("%d (%s) old priority %d, new priority %d\n"),
+ who, idtype[which], oldprio, newprio);
+ return 0;
+}
/*
- * Change the priority (nice) of processes
- * or groups of processes which are already
- * running.
+ * Change the priority (the nice value) of processes
+ * or groups of processes which are already running.
*/
-int
-main(int argc, char **argv)
+int main(int argc, char **argv)
{
int which = PRIO_PROCESS;
int who = 0, prio, errs = 0;
+ char *endptr = NULL;
+
+ setlocale(LC_ALL, "");
+ bindtextdomain(PACKAGE, LOCALEDIR);
+ textdomain(PACKAGE);
+ close_stdout_atexit();
- argc--, argv++;
- if (argc < 2) {
- fprintf(stderr, "usage: renice priority [ [ -p ] pids ] ");
- fprintf(stderr, "[ [ -g ] pgrps ] [ [ -u ] users ]\n");
- exit(1);
+ argc--;
+ argv++;
+
+ if (argc == 1) {
+ if (strcmp(*argv, "-h") == 0 ||
+ strcmp(*argv, "--help") == 0)
+ usage();
+
+ if (strcmp(*argv, "-v") == 0 ||
+ strcmp(*argv, "-V") == 0 ||
+ strcmp(*argv, "--version") == 0)
+ print_version(EXIT_SUCCESS);
+ }
+
+ if (*argv && (strcmp(*argv, "-n") == 0 || strcmp(*argv, "--priority") == 0)) {
+ argc--;
+ argv++;
+ }
+
+ if (argc < 2 || !*argv) {
+ warnx(_("not enough arguments"));
+ errtryhelp(EXIT_FAILURE);
+ }
+
+ prio = strtol(*argv, &endptr, 10);
+ if (*endptr) {
+ warnx(_("invalid priority '%s'"), *argv);
+ errtryhelp(EXIT_FAILURE);
}
- prio = atoi(*argv);
- argc--, argv++;
- if (prio > PRIO_MAX)
- prio = PRIO_MAX;
- if (prio < PRIO_MIN)
- prio = PRIO_MIN;
+ argc--;
+ argv++;
+
for (; argc > 0; argc--, argv++) {
- if (strcmp(*argv, "-g") == 0) {
+ if (strcmp(*argv, "-g") == 0 || strcmp(*argv, "--pgrp") == 0) {
which = PRIO_PGRP;
continue;
}
- if (strcmp(*argv, "-u") == 0) {
+ if (strcmp(*argv, "-u") == 0 || strcmp(*argv, "--user") == 0) {
which = PRIO_USER;
continue;
}
- if (strcmp(*argv, "-p") == 0) {
+ if (strcmp(*argv, "-p") == 0 || strcmp(*argv, "--pid") == 0) {
which = PRIO_PROCESS;
continue;
}
if (which == PRIO_USER) {
- register struct passwd *pwd = getpwnam(*argv);
-
- if (pwd == NULL) {
- fprintf(stderr, "renice: %s: unknown user\n",
- *argv);
+ struct passwd *pwd = getpwnam(*argv);
+
+ if (pwd != NULL)
+ who = pwd->pw_uid;
+ else
+ who = strtol(*argv, &endptr, 10);
+ if (who < 0 || *endptr) {
+ warnx(_("unknown user %s"), *argv);
+ errs = 1;
continue;
}
- who = pwd->pw_uid;
} else {
- who = atoi(*argv);
- if (who < 0) {
- fprintf(stderr, "renice: %s: bad value\n",
- *argv);
+ who = strtol(*argv, &endptr, 10);
+ if (who < 0 || *endptr) {
+ /* TRANSLATORS: The first %s is one of the above
+ * three ID names. Read: "bad value for %s: %s" */
+ warnx(_("bad %s value: %s"), idtype[which], *argv);
+ errs = 1;
continue;
}
}
- errs += donice(which, who, prio);
- }
- return (errs != 0);
-}
-
-int
-donice(which, who, prio)
- int which, who, prio;
-{
- int oldprio;
- extern int errno;
-
- errno = 0, oldprio = getpriority(which, who);
- if (oldprio == -1 && errno) {
- fprintf(stderr, "renice: %d: ", who);
- perror("getpriority");
- return (1);
- }
- if (setpriority(which, who, prio) < 0) {
- fprintf(stderr, "renice: %d: ", who);
- perror("setpriority");
- return (1);
+ errs |= donice(which, who, prio);
}
- printf("%d: old priority %d, new priority %d\n", who, oldprio, prio);
- return (0);
+ return errs != 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
projects / thirdparty / util-linux.git / blobdiff