* SUCH DAMAGE.
*/
- /* 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL>
+ /* 1999-02-22 Arkadiusz Miśkiewicz <misiek@pld.ORG.PL>
* - added Native Language Support
*/
#include <errno.h>
#include "nls.h"
#include "c.h"
+#include "closestream.h"
-static int donice(int,int,int);
+static const char *idtype[] = {
+ [PRIO_PROCESS] = N_("process ID"),
+ [PRIO_PGRP] = N_("process group ID"),
+ [PRIO_USER] = N_("user ID"),
+};
-static void __attribute__((__noreturn__)) usage(FILE *out)
+static void __attribute__((__noreturn__)) usage(void)
{
- fprintf(out, _(
- "\nUsage:\n"
- " %1$s [-n] <priority> [-p] <pid> [<pid> ...]\n"
- " %1$s [-n] <priority> -g <pgrp> [<pgrp> ...]\n"
- " %1$s [-n] <priority> -u <user> [<user> ...]\n"),
+ FILE *out = stdout;
+ fputs(USAGE_HEADER, out);
+ fprintf(out,
+ _(" %1$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);
- fprintf(out, _(
- "\nOptions:\n"
- " -g, --pgrp <id> interpret as process group ID\n"
- " -h, --help print help\n"
- " -n, --priority <num> set the nice increment value\n"
- " -p, --pid <id> force to be interpreted as process ID\n"
- " -u, --user <name|id> interpret as username or user ID\n"
- " -v, --version print version\n"));
+ 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;
+}
- fprintf(out, _("\nFor more information see renice(1).\n"));
+static int donice(const int which, const int who, const int prio)
+{
+ int oldprio, newprio;
- exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
+ 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;
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
+ atexit(close_stdout);
argc--;
argv++;
if (argc == 1) {
if (strcmp(*argv, "-h") == 0 ||
strcmp(*argv, "--help") == 0)
- usage(stdout);
+ usage();
if (strcmp(*argv, "-v") == 0 ||
+ strcmp(*argv, "-V") == 0 ||
strcmp(*argv, "--version") == 0) {
- printf(_("renice from %s\n"), PACKAGE_STRING);
- exit(EXIT_SUCCESS);
+ printf(UTIL_LINUX_VERSION);
+ return EXIT_SUCCESS;
}
}
- if (argc < 2)
- usage(stderr);
-
- if (strcmp(*argv, "-n") == 0 || strcmp(*argv, "--priority") == 0) {
+ if (*argv && (strcmp(*argv, "-n") == 0 || strcmp(*argv, "--priority") == 0)) {
argc--;
argv++;
}
- prio = strtol(*argv, &endptr, 10);
- if (*endptr)
- usage(stderr);
+ if (argc < 2) {
+ warnx(_("not enough arguments"));
+ errtryhelp(EXIT_FAILURE);
+ }
+ prio = strtol(*argv, &endptr, 10);
+ if (*endptr) {
+ warnx(_("invalid priority '%s'"), *argv);
+ errtryhelp(EXIT_FAILURE);
+ }
argc--;
argv++;
continue;
}
if (which == PRIO_USER) {
- register struct passwd *pwd = getpwnam(*argv);
+ struct passwd *pwd = getpwnam(*argv);
- if (pwd == NULL) {
+ 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 = strtol(*argv, &endptr, 10);
if (who < 0 || *endptr) {
- warnx(_("bad value %s"), *argv);
+ /* 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);
+ errs |= donice(which, who, prio);
}
return errs != 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
-
-static int
-donice(int which, int who, int prio) {
- int oldprio, newprio;
- const char *idtype = _("process ID");
-
- if (which == PRIO_USER)
- idtype = _("user ID");
- else if (which == PRIO_PGRP)
- idtype = _("process group ID");
-
- errno = 0;
- oldprio = getpriority(which, who);
- if (oldprio == -1 && errno) {
- warn(_("failed to get priority for %d (%s)"), who, idtype);
- return 1;
- }
- if (setpriority(which, who, prio) < 0) {
- warn(_("failed to set priority for %d (%s)"), who, idtype);
- return 1;
- }
- errno = 0;
- newprio = getpriority(which, who);
- if (newprio == -1 && errno) {
- warn(_("failed to get priority for %d (%s)"), who, idtype);
- return 1;
- }
-
- printf(_("%d (%s) old priority %d, new priority %d\n"),
- who, idtype, oldprio, newprio);
- return 0;
-}
projects / thirdparty / util-linux.git / blobdiff