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authorRobert Griebl <griebl@gmx.de>2002-05-17 22:18:04 +0000
committerRobert Griebl <griebl@gmx.de>2002-05-17 22:18:04 +0000
commit13c26fc1a55df2b97062cf370547c4d656e70957 (patch)
treea948e20b6776ca384779aee363db04c02e541be7 /coreutils/head.c
parentc30c5e89cfe9840745a48a50203b3c4fb76c7773 (diff)
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SUpport old style -[::digit::] options for head and tail
Also make head behave like GNU head (-0/-n 0 is valid)
Diffstat (limited to 'coreutils/head.c')
-rw-r--r--coreutils/head.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/coreutils/head.c b/coreutils/head.c
index 4a1677146..c5c11fc7b 100644
--- a/coreutils/head.c
+++ b/coreutils/head.c
@@ -47,12 +47,17 @@ int head_main(int argc, char **argv)
47 FILE *fp; 47 FILE *fp;
48 int need_headers, opt, len = 10, status = EXIT_SUCCESS; 48 int need_headers, opt, len = 10, status = EXIT_SUCCESS;
49 49
50 if (( argc >= 2 ) && ( strlen ( argv [1] ) >= 2 ) && ( argv [1][0] == '-' ) && isdigit ( argv [1][1] )) {
51 len = atoi ( &argv [1][1] );
52 optind = 2;
53 }
54
50 /* parse argv[] */ 55 /* parse argv[] */
51 while ((opt = getopt(argc, argv, "n:")) > 0) { 56 while ((opt = getopt(argc, argv, "n:")) > 0) {
52 switch (opt) { 57 switch (opt) {
53 case 'n': 58 case 'n':
54 len = atoi(optarg); 59 len = atoi(optarg);
55 if (len >= 1) 60 if (len >= 0)
56 break; 61 break;
57 /* fallthrough */ 62 /* fallthrough */
58 default: 63 default: