Kannel: Open Source WAP and SMS gateway  $Revision: 5037 $
attgetopt.c
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56 
57 /*
58  * attgetopt.c - AT&T's public domain implementation of getopt.
59  *
60  * From the mod.sources newsgroup, volume 3, issue 58, with modifications
61  * to bring it up to 21st century C.
62  */
63 
64 #include <stdio.h>
65 #include <string.h>
66 
67 #include "gw-config.h"
68 
69 /*
70  * If the systm has getopt() defined within stdio.h (like on Solaris 2.6)
71  * then we will not implement our own here.
72  */
73 #ifndef HAVE_GETOPT_IN_STDIO_H
74 
75 #define ERR(s, c) \
76  if (opterr) \
77  (void) fprintf(stderr, "%s: %s\n", argv[0], s)
78 
79 int opterr = 1;
80 int optind = 1;
81 int optopt;
82 char *optarg;
83 
84 int getopt(int argc, char **argv, char *opts)
85 {
86  static int sp = 1;
87  register int c;
88  register char *cp;
89 
90  if(sp == 1) {
91  if(optind >= argc ||
92  argv[optind][0] != '-' || argv[optind][1] == '\0')
93  return(EOF);
94  else if(strcmp(argv[optind], "--") == 0) {
95  optind++;
96  return(EOF);
97  }
98  }
99  optopt = c = argv[optind][sp];
100  if(c == ':' || (cp=strchr(opts, c)) == NULL) {
101  ERR(": illegal option -- ", c);
102  if(argv[optind][++sp] == '\0') {
103  optind++;
104  sp = 1;
105  }
106  return('?');
107  }
108  if(*++cp == ':') {
109  if(argv[optind][sp+1] != '\0')
110  optarg = &argv[optind++][sp+1];
111  else if(++optind >= argc) {
112  ERR(": option requires an argument -- ", c);
113  sp = 1;
114  return('?');
115  } else
116  optarg = argv[optind++];
117  sp = 1;
118  } else {
119  if(argv[optind][++sp] == '\0') {
120  sp = 1;
121  optind++;
122  }
123  optarg = NULL;
124  }
125  return(c);
126 }
127 
128 #endif /* HAVE_GETOPT_IN_STDIO_H */
#define ERR(s, c)
Definition: attgetopt.c:75
char * optarg
Definition: attgetopt.c:82
int getopt(int argc, char **argv, char *opts)
Definition: attgetopt.c:84
int optind
Definition: attgetopt.c:80
int optopt
Definition: attgetopt.c:81
int opterr
Definition: attgetopt.c:79
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