root/sapi/milter/getopt.c

DEFINITIONS

1. ap_php_optiserr
2. ap_php_getopt
3. main

   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 */