| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| #define EPR fprintf(stderr, |
| #define ERR(str, chr) if(opterr) { EPR "%s%c\n", str, chr); } |
| |
| int opterr = 1; |
| int optind = 1; |
| int optopt; |
| char *optarg; |
| |
| int |
| stgetopt(int argc, char *const argv[], const char *opts) |
| { |
| static int sp = 1; |
| register int c; |
| register char *cp; |
| |
| if (sp == 1) |
| { |
| if (optind >= argc || |
| argv[optind][0] != '-' || argv[optind][1] == '\0') |
| return -1; |
| else if (strcmp(argv[optind], "--") == 0) |
| { |
| optind++; |
| return -1; |
| } |
| else if (strcmp(argv[optind], "-isysroot") == 0) |
| { |
| // skip Mac OS X SDK selection flags |
| optind++; optind++; |
| } |
| } |
| optopt = c = argv[optind][sp]; |
| if (c == ':' || (cp = strchr(opts, c)) == 0) |
| { |
| ERR(": illegal option -- ", c); |
| if (argv[optind][++sp] == '\0') |
| { |
| optind++; |
| sp = 1; |
| } |
| return '?'; |
| } |
| if (*++cp == ':') |
| { |
| if (argv[optind][sp + 1] != '\0') |
| optarg = &argv[optind++][sp + 1]; |
| else |
| if (++optind >= argc) |
| { |
| ERR(": option requires an argument -- ", c); |
| sp = 1; |
| return '?'; |
| } |
| else |
| optarg = argv[optind++]; |
| sp = 1; |
| } |
| else |
| { |
| if (argv[optind][++sp] == '\0') |
| { |
| sp = 1; |
| optind++; |
| } |
| optarg = 0; |
| } |
| return c; |
| } |