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| author | Robert Griebl | 2002-05-17 22:18:04 +0000 |
|---|---|---|
| committer | Robert Griebl | 2002-05-17 22:18:04 +0000 |
| commit | 13c26fc1a55df2b97062cf370547c4d656e70957 (patch) | |
| tree | a948e20b6776ca384779aee363db04c02e541be7 /coreutils/head.c | |
| parent | c30c5e89cfe9840745a48a50203b3c4fb76c7773 (diff) | |
| download | busybox-13c26fc1a55df2b97062cf370547c4d656e70957.zip busybox-13c26fc1a55df2b97062cf370547c4d656e70957.tar.gz | |
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.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/coreutils/head.c b/coreutils/head.c index 4a16771..c5c11fc 100644 --- a/coreutils/head.c +++ b/coreutils/head.c @@ -47,12 +47,17 @@ int head_main(int argc, char **argv) FILE *fp; int need_headers, opt, len = 10, status = EXIT_SUCCESS; + if (( argc >= 2 ) && ( strlen ( argv [1] ) >= 2 ) && ( argv [1][0] == '-' ) && isdigit ( argv [1][1] )) { + len = atoi ( &argv [1][1] ); + optind = 2; + } + /* parse argv[] */ while ((opt = getopt(argc, argv, "n:")) > 0) { switch (opt) { case 'n': len = atoi(optarg); - if (len >= 1) + if (len >= 0) break; /* fallthrough */ default: |