diff options
author | Cameron Katri <me@cameronkatri.com> | 2021-05-09 14:20:58 -0400 |
---|---|---|
committer | Cameron Katri <me@cameronkatri.com> | 2021-05-09 14:20:58 -0400 |
commit | 5fd83771641d15c418f747bd343ba6738d3875f7 (patch) | |
tree | 5abf0f78f680d9837dbd93d4d4c3933bb7509599 /file_cmds/pax/getoldopt.c | |
download | apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.tar.gz apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.tar.zst apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.zip |
Import macOS userland
adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106
Diffstat (limited to 'file_cmds/pax/getoldopt.c')
-rw-r--r-- | file_cmds/pax/getoldopt.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/file_cmds/pax/getoldopt.c b/file_cmds/pax/getoldopt.c new file mode 100644 index 0000000..3133f62 --- /dev/null +++ b/file_cmds/pax/getoldopt.c @@ -0,0 +1,74 @@ +/* $OpenBSD: getoldopt.c,v 1.8 2003/07/02 21:19:33 deraadt Exp $ */ +/* $NetBSD: getoldopt.c,v 1.3 1995/03/21 09:07:28 cgd Exp $ */ + +/* + * Plug-compatible replacement for getopt() for parsing tar-like + * arguments. If the first argument begins with "-", it uses getopt; + * otherwise, it uses the old rules used by tar, dump, and ps. + * + * Written 25 August 1985 by John Gilmore (ihnp4!hoptoad!gnu) and placed + * in the Public Domain for your edification and enjoyment. + */ + +#include <sys/cdefs.h> +#ifndef lint +__used static const char rcsid[] = "$OpenBSD: getoldopt.c,v 1.8 2003/07/02 21:19:33 deraadt Exp $"; +#endif /* not lint */ + +#include <sys/types.h> +#include <sys/stat.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include "pax.h" +#include "extern.h" + +int +getoldopt(int argc, char **argv, const char *optstring) +{ + static char *key; /* Points to next keyletter */ + static char use_getopt; /* !=0 if argv[1][0] was '-' */ + char c; + char *place; + + optarg = NULL; + + if (key == NULL) { /* First time */ + if (argc < 2) + return (-1); + key = argv[1]; + if (*key == '-') + use_getopt++; + else + optind = 2; + } + + if (use_getopt) + return (getopt(argc, argv, optstring)); + + c = *key++; + if (c == '\0') { + key--; + return (-1); + } + place = strchr(optstring, c); + + if (place == NULL || c == ':') { + fprintf(stderr, "%s: unknown option %c\n", argv[0], c); + return ('?'); + } + + place++; + if (*place == ':') { + if (optind < argc) { + optarg = argv[optind]; + optind++; + } else { + fprintf(stderr, "%s: %c argument missing\n", + argv[0], c); + return ('?'); + } + } + + return (c); +} |