Return to getopt.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / php / sapi / milter

php

    1: /* Borrowed from Apache NT Port */
    2: 
    3: #include <stdio.h>
    4: #include <string.h>
    5: #include <assert.h>
    6: #include <stdlib.h>
    7: #include "php_getopt.h"
    8: #define OPTERRCOLON (1)
    9: #define OPTERRNF (2)
   10: #define OPTERRARG (3)
   11: 
   12: 
   13: char *ap_php_optarg;
   14: int ap_php_optind = 1;
   15: static int ap_php_opterr = 1;
   16: 
   17: static int
   18: ap_php_optiserr(int argc, char * const *argv, int oint, const char *optstr,
   19:          int optchr, int err)
   20: {
   21:     if (ap_php_opterr)
   22:     {
   23:         fprintf(stderr, "Error in argument %d, char %d: ", oint, optchr+1);
   24:         switch(err)
   25:         {
   26:         case OPTERRCOLON:
   27:             fprintf(stderr, ": in flags\n");
   28:             break;
   29:         case OPTERRNF:
   30:             fprintf(stderr, "option not found %c\n", argv[oint][optchr]);
   31:             break;
   32:         case OPTERRARG:
   33:             fprintf(stderr, "no argument for option %c\n", argv[oint][optchr]);
   34:             break;
   35:         default:
   36:             fprintf(stderr, "unknown\n");
   37:             break;
   38:         }
   39:     }
   40:     return('?');
   41: }
   42:     
   43: int ap_php_getopt(int argc, char* const *argv, const char *optstr)
   44: {
   45:     static int optchr = 0;
   46:     static int dash = 0; /* have already seen the - */
   47: 
   48:     char *cp;
   49: 
   50:     if (ap_php_optind >= argc)
   51:         return(EOF);
   52:     if (!dash && (argv[ap_php_optind][0] !=  '-'))
   53:         return(EOF);
   54:     if (!dash && (argv[ap_php_optind][0] ==  '-') && !argv[ap_php_optind][1])
   55:     {
   56:         /*
   57:          * use to specify stdin. Need to let pgm process this and
   58:          * the following args
   59:          */
   60:         return(EOF);
   61:     }
   62:     if ((argv[ap_php_optind][0] == '-') && (argv[ap_php_optind][1] == '-'))
   63:     {
   64:         /* -- indicates end of args */
   65:         ap_php_optind++;
   66:         return(EOF);
   67:     }
   68:     if (!dash)
   69:     {
   70:         assert((argv[ap_php_optind][0] == '-') && argv[ap_php_optind][1]);
   71:         dash = 1;
   72:         optchr = 1;
   73:     }
   74: 
   75:     /* Check if the guy tries to do a -: kind of flag */
   76:     assert(dash);
   77:     if (argv[ap_php_optind][optchr] == ':')
   78:     {
   79:         dash = 0;
   80:         ap_php_optind++;
   81:         return(ap_php_optiserr(argc, argv, ap_php_optind-1, optstr, optchr, OPTERRCOLON));
   82:     }
   83:     if (!(cp = strchr(optstr, argv[ap_php_optind][optchr])))
   84:     {
   85:         int errind = ap_php_optind;
   86:         int errchr = optchr;
   87: 
   88:         if (!argv[ap_php_optind][optchr+1])
   89:         {
   90:             dash = 0;
   91:             ap_php_optind++;
   92:         }
   93:         else
   94:             optchr++;
   95:         return(ap_php_optiserr(argc, argv, errind, optstr, errchr, OPTERRNF));
   96:     }
   97:     if (cp[1] == ':')
   98:     {
   99:         /* Check for cases where the value of the argument 
  100:            is in the form -<arg> <val> or in the form -<arg><val> */
  101:         dash = 0;
  102:         if(!argv[ap_php_optind][2]) {
  103:             ap_php_optind++;
  104:             if (ap_php_optind == argc)
  105:                 return(ap_php_optiserr(argc, argv, ap_php_optind-1, optstr, optchr, OPTERRARG));
  106:             ap_php_optarg = argv[ap_php_optind++];
  107:         }
  108:         else
  109:         {
  110:             ap_php_optarg = &argv[ap_php_optind][2];
  111:             ap_php_optind++;
  112:         }
  113:         return(*cp);
  114:     }
  115:     else
  116:     {
  117:         if (!argv[ap_php_optind][optchr+1])
  118:         {
  119:             dash = 0;
  120:             ap_php_optind++;
  121:         }
  122:         else
  123:             optchr++;
  124:         return(*cp);
  125:     }
  126:     assert(0);
  127:     return(0);	/* never reached */
  128: }
  129: 
  130: #ifdef TESTGETOPT
  131: int
  132:  main (int argc, char **argv)
  133:  {
  134:       int c;
  135:       extern char *ap_php_optarg;
  136:       extern int ap_php_optind;
  137:       int aflg = 0;
  138:       int bflg = 0;
  139:       int errflg = 0;
  140:       char *ofile = NULL;
  141: 
  142:       while ((c = ap_php_getopt(argc, argv, "abo:")) != EOF)
  143:            switch (c) {
  144:            case 'a':
  145:                 if (bflg)
  146:                      errflg++;
  147:                 else
  148:                      aflg++;
  149:                 break;
  150:            case 'b':
  151:                 if (aflg)
  152:                      errflg++;
  153:                 else
  154:                      bflg++;
  155:                 break;
  156:            case 'o':
  157:                 ofile = ap_php_optarg;
  158:                 (void)printf("ofile = %s\n", ofile);
  159:                 break;
  160:            case '?':
  161:                 errflg++;
  162:            }
  163:       if (errflg) {
  164:            (void)fprintf(stderr,
  165:                 "usage: cmd [-a|-b] [-o <filename>] files...\n");
  166:            exit (2);
  167:       }
  168:       for ( ; ap_php_optind < argc; ap_php_optind++)
  169:            (void)printf("%s\n", argv[ap_php_optind]);
  170:       return 0;
  171:  }
  172: 
  173: #endif /* TESTGETOPT */