summaryrefslogtreecommitdiffstats
path: root/usr.bin/xargs/xargs.c
diff options
context:
space:
mode:
Diffstat (limited to 'usr.bin/xargs/xargs.c')
-rw-r--r--usr.bin/xargs/xargs.c30
1 files changed, 22 insertions, 8 deletions
diff --git a/usr.bin/xargs/xargs.c b/usr.bin/xargs/xargs.c
index 6bd3e9f..c56ab60 100644
--- a/usr.bin/xargs/xargs.c
+++ b/usr.bin/xargs/xargs.c
@@ -46,9 +46,11 @@ static char sccsid[] = "@(#)xargs.c 8.1 (Berkeley) 6/6/93";
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
-#include <sys/param.h>
+#include <sys/types.h>
#include <sys/wait.h>
-
+#include <sys/time.h>
+#include <sys/limits.h>
+#include <sys/resource.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
@@ -100,7 +102,9 @@ main(int argc, char *argv[])
long arg_max;
int ch, Jflag, nargs, nflag, nline;
size_t linelen;
+ struct rlimit rl;
char *endptr;
+ const char *errstr;
inpline = replstr = NULL;
ep = environ;
@@ -148,19 +152,27 @@ main(int argc, char *argv[])
replstr = optarg;
break;
case 'L':
- Lflag = atoi(optarg);
+ Lflag = strtonum(optarg, 0, INT_MAX, &errstr);
+ if (errstr)
+ errx(1, "-L %s: %s", optarg, errstr);
break;
case 'n':
nflag = 1;
- if ((nargs = atoi(optarg)) <= 0)
- errx(1, "illegal argument count");
+ nargs = strtonum(optarg, 1, INT_MAX, &errstr);
+ if (errstr)
+ errx(1, "-n %s: %s", optarg, errstr);
break;
case 'o':
oflag = 1;
break;
case 'P':
- if ((maxprocs = atoi(optarg)) <= 0)
- errx(1, "max. processes must be >0");
+ maxprocs = strtonum(optarg, 0, INT_MAX, &errstr);
+ if (errstr)
+ errx(1, "-P %s: %s", optarg, errstr);
+ if (getrlimit(RLIMIT_NPROC, &rl) != 0)
+ errx(1, "getrlimit failed");
+ if (maxprocs == 0 || maxprocs > rl.rlim_cur)
+ maxprocs = rl.rlim_cur;
break;
case 'p':
pflag = 1;
@@ -179,7 +191,9 @@ main(int argc, char *argv[])
errx(1, "replsize must be a number");
break;
case 's':
- nline = atoi(optarg);
+ nline = strtonum(optarg, 0, INT_MAX, &errstr);
+ if (errstr)
+ errx(1, "-s %s: %s", optarg, errstr);
break;
case 't':
tflag = 1;
OpenPOWER on IntegriCloud