before changing it!
Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97
- Free Software Foundation, Inc.
+ Free Software Foundation, Inc.
NOTE: The canonical source of this file is maintained with the GNU C Library.
Bugs can be reported to bug-glibc@prep.ai.mit.edu.
/* This needs to come after some library #include
to get GNU_LIBRARY defined. */
-#ifdef GNU_LIBRARY
+#ifdef GNU_LIBRARY
/* Don't include stdlib.h for non-GNU C libraries because some of them
contain conflicting prototypes for getopt. */
#include <stdlib.h>
#include <unistd.h>
-#endif /* GNU C library. */
+#endif /* GNU C library. */
#ifdef VMS
#include <unixlib.h>
of the value of `ordering'. In the case of RETURN_IN_ORDER, only
`--' can cause `getopt' to return -1 with `optind' != ARGC. */
-static enum
-{
- REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
+static enum {
+ REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
} ordering;
/* Value of POSIXLY_CORRECT environment variable. */
static char *posixly_correct;
\f
-#ifdef GNU_LIBRARY
+#ifdef GNU_LIBRARY
/* We want to avoid inclusion of string.h with non-GNU libraries
because there are many ways it can cause trouble.
On some systems, it contains special magic macros that don't work
in GCC. */
#include <string.h>
-#define my_index strchr
+#define my_index strchr
#else
/* Avoid depending on library functions or files
whose names are inconsistent. */
-char *getenv ();
+char *getenv();
static char *
-my_index (str, chr)
- const char *str;
- int chr;
+my_index(str, chr)
+const char *str;
+int chr;
{
- while (*str)
- {
- if (*str == chr)
- return (char *) str;
- str++;
- }
- return 0;
+ while(*str) {
+ if(*str == chr) {
+ return (char *) str;
+ }
+
+ str++;
+ }
+
+ return 0;
}
/* If using GCC, we can safely declare strlen this way.
#if !defined (STDC) || !STDC
/* gcc with -traditional declares the built-in strlen to return int,
and has done so at least since version 2.4.5. -- rms. */
-extern int strlen (const char *);
+extern int strlen(const char *);
#endif /* not STDC */
#endif /* GNUC */
is valid for the getopt call we must make sure that the ARGV passed
to getopt is that one passed to the process. */
static void
-__attribute__ ((__unused__))
-store_args_and_env (int argc, char *const *argv)
-{
- /* XXX This is no good solution. We should rather copy the args so
- that we can compare them later. But we must not use malloc(3). */
- original_argc = argc;
- original_argv = argv;
+__attribute__((__unused__))
+store_args_and_env(int argc, char *const *argv) {
+ /* XXX This is no good solution. We should rather copy the args so
+ that we can compare them later. But we must not use malloc(3). */
+ original_argc = argc;
+ original_argv = argv;
}
-text_set_element (libc_subinit, store_args_and_env);
+text_set_element(libc_subinit, store_args_and_env);
# define SWAP_FLAGS(ch1, ch2) \
- if (nonoption_flags_len > 0) \
- { \
- char tmp = getopt_nonoption_flags[ch1]; \
- getopt_nonoption_flags[ch1] = getopt_nonoption_flags[ch2]; \
- getopt_nonoption_flags[ch2] = tmp; \
- }
-#else /* !_LIBC */
+ if (nonoption_flags_len > 0) \
+ { \
+ char tmp = getopt_nonoption_flags[ch1]; \
+ getopt_nonoption_flags[ch1] = getopt_nonoption_flags[ch2]; \
+ getopt_nonoption_flags[ch2] = tmp; \
+ }
+#else /* !_LIBC */
# define SWAP_FLAGS(ch1, ch2)
-#endif /* _LIBC */
+#endif /* _LIBC */
/* Exchange two adjacent subsequences of ARGV.
One subsequence is elements [first_nonopt,last_nonopt)
the new indices of the non-options in ARGV after they are moved. */
#if defined (STDC) && STDC
-static void exchange (char **);
+static void exchange(char **);
#endif
static void
-exchange (argv)
- char **argv;
+exchange(argv)
+char **argv;
{
- int bottom = first_nonopt;
- int middle = last_nonopt;
- int top = optind;
- char *tem;
+ int bottom = first_nonopt;
+ int middle = last_nonopt;
+ int top = optind;
+ char *tem;
- /* Exchange the shorter segment with the far end of the longer segment.
- That puts the shorter segment into the right place.
- It leaves the longer segment in the right place overall,
- but it consists of two parts that need to be swapped next. */
+ /* Exchange the shorter segment with the far end of the longer segment.
+ That puts the shorter segment into the right place.
+ It leaves the longer segment in the right place overall,
+ but it consists of two parts that need to be swapped next. */
#ifdef _LIBC
- /* First make sure the handling of the `getopt_nonoption_flags'
- string can work normally. Our top argument must be in the range
- of the string. */
- if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)
- {
- /* We must extend the array. The user plays games with us and
- presents new arguments. */
- char *new_str = malloc (top + 1);
- if (new_str == NULL)
- nonoption_flags_len = nonoption_flags_max_len = 0;
- else
- {
- memcpy (new_str, getopt_nonoption_flags, nonoption_flags_max_len);
- memset (&new_str[nonoption_flags_max_len], '\0',
- top + 1 - nonoption_flags_max_len);
- nonoption_flags_max_len = top + 1;
- getopt_nonoption_flags = new_str;
+
+ /* First make sure the handling of the `getopt_nonoption_flags'
+ string can work normally. Our top argument must be in the range
+ of the string. */
+ if(nonoption_flags_len > 0 && top >= nonoption_flags_max_len) {
+ /* We must extend the array. The user plays games with us and
+ presents new arguments. */
+ char *new_str = malloc(top + 1);
+
+ if(new_str == NULL) {
+ nonoption_flags_len = nonoption_flags_max_len = 0;
+ } else {
+ memcpy(new_str, getopt_nonoption_flags, nonoption_flags_max_len);
+ memset(&new_str[nonoption_flags_max_len], '\0',
+ top + 1 - nonoption_flags_max_len);
+ nonoption_flags_max_len = top + 1;
+ getopt_nonoption_flags = new_str;
+ }
}
- }
+
#endif
- while (top > middle && middle > bottom)
- {
- if (top - middle > middle - bottom)
- {
- /* Bottom segment is the short one. */
- int len = middle - bottom;
- register int i;
-
- /* Swap it with the top part of the top segment. */
- for (i = 0; i < len; i++)
- {
- tem = argv[bottom + i];
- argv[bottom + i] = argv[top - (middle - bottom) + i];
- argv[top - (middle - bottom) + i] = tem;
- SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
- }
- /* Exclude the moved bottom segment from further swapping. */
- top -= len;
- }
- else
- {
- /* Top segment is the short one. */
- int len = top - middle;
- register int i;
-
- /* Swap it with the bottom part of the bottom segment. */
- for (i = 0; i < len; i++)
- {
- tem = argv[bottom + i];
- argv[bottom + i] = argv[middle + i];
- argv[middle + i] = tem;
- SWAP_FLAGS (bottom + i, middle + i);
- }
- /* Exclude the moved top segment from further swapping. */
- bottom += len;
+ while(top > middle && middle > bottom) {
+ if(top - middle > middle - bottom) {
+ /* Bottom segment is the short one. */
+ int len = middle - bottom;
+ register int i;
+
+ /* Swap it with the top part of the top segment. */
+ for(i = 0; i < len; i++) {
+ tem = argv[bottom + i];
+ argv[bottom + i] = argv[top - (middle - bottom) + i];
+ argv[top - (middle - bottom) + i] = tem;
+ SWAP_FLAGS(bottom + i, top - (middle - bottom) + i);
+ }
+
+ /* Exclude the moved bottom segment from further swapping. */
+ top -= len;
+ } else {
+ /* Top segment is the short one. */
+ int len = top - middle;
+ register int i;
+
+ /* Swap it with the bottom part of the bottom segment. */
+ for(i = 0; i < len; i++) {
+ tem = argv[bottom + i];
+ argv[bottom + i] = argv[middle + i];
+ argv[middle + i] = tem;
+ SWAP_FLAGS(bottom + i, middle + i);
+ }
+
+ /* Exclude the moved top segment from further swapping. */
+ bottom += len;
+ }
}
- }
- /* Update records for the slots the non-options now occupy. */
+ /* Update records for the slots the non-options now occupy. */
- first_nonopt += (optind - last_nonopt);
- last_nonopt = optind;
+ first_nonopt += (optind - last_nonopt);
+ last_nonopt = optind;
}
/* Initialize the internal data when the first call is made. */
#if defined (STDC) && STDC
-static const char *_getopt_initialize (int, char *const *, const char *);
+static const char *_getopt_initialize(int, char *const *, const char *);
#endif
static const char *
-_getopt_initialize (argc, argv, optstring)
- int argc;
- char *const *argv;
- const char *optstring;
+_getopt_initialize(argc, argv, optstring)
+int argc;
+char *const *argv;
+const char *optstring;
{
- /* Start processing options with ARGV-element 1 (since ARGV-element 0
- is the program name); the sequence of previously skipped
- non-option ARGV-elements is empty. */
+ /* Start processing options with ARGV-element 1 (since ARGV-element 0
+ is the program name); the sequence of previously skipped
+ non-option ARGV-elements is empty. */
- first_nonopt = last_nonopt = optind;
+ first_nonopt = last_nonopt = optind;
- nextchar = NULL;
+ nextchar = NULL;
- posixly_correct = getenv ("POSIXLY_CORRECT");
+ posixly_correct = getenv("POSIXLY_CORRECT");
- /* Determine how to handle the ordering of options and nonoptions. */
+ /* Determine how to handle the ordering of options and nonoptions. */
- if (optstring[0] == '-')
- {
- ordering = RETURN_IN_ORDER;
- ++optstring;
- }
- else if (optstring[0] == '+')
- {
- ordering = REQUIRE_ORDER;
- ++optstring;
- }
- else if (posixly_correct != NULL)
- ordering = REQUIRE_ORDER;
- else
- ordering = PERMUTE;
+ if(optstring[0] == '-') {
+ ordering = RETURN_IN_ORDER;
+ ++optstring;
+ } else if(optstring[0] == '+') {
+ ordering = REQUIRE_ORDER;
+ ++optstring;
+ } else if(posixly_correct != NULL) {
+ ordering = REQUIRE_ORDER;
+ } else {
+ ordering = PERMUTE;
+ }
#ifdef _LIBC
- if (posixly_correct == NULL
- && argc == original_argc && argv == original_argv)
- {
- if (nonoption_flags_max_len == 0)
- {
- if (getopt_nonoption_flags == NULL
- || getopt_nonoption_flags[0] == '\0')
- nonoption_flags_max_len = -1;
- else
- {
- const char *orig_str = getopt_nonoption_flags;
- int len = nonoption_flags_max_len = strlen (orig_str);
- if (nonoption_flags_max_len < argc)
- nonoption_flags_max_len = argc;
- getopt_nonoption_flags =
- (char *) malloc (nonoption_flags_max_len);
- if (getopt_nonoption_flags == NULL)
- nonoption_flags_max_len = -1;
- else
- {
- memcpy (getopt_nonoption_flags, orig_str, len);
- memset (&getopt_nonoption_flags[len], '\0',
- nonoption_flags_max_len - len);
+
+ if(posixly_correct == NULL
+ && argc == original_argc && argv == original_argv) {
+ if(nonoption_flags_max_len == 0) {
+ if(getopt_nonoption_flags == NULL
+ || getopt_nonoption_flags[0] == '\0') {
+ nonoption_flags_max_len = -1;
+ } else {
+ const char *orig_str = getopt_nonoption_flags;
+ int len = nonoption_flags_max_len = strlen(orig_str);
+
+ if(nonoption_flags_max_len < argc) {
+ nonoption_flags_max_len = argc;
+ }
+
+ getopt_nonoption_flags =
+ (char *) malloc(nonoption_flags_max_len);
+
+ if(getopt_nonoption_flags == NULL) {
+ nonoption_flags_max_len = -1;
+ } else {
+ memcpy(getopt_nonoption_flags, orig_str, len);
+ memset(&getopt_nonoption_flags[len], '\0',
+ nonoption_flags_max_len - len);
+ }
+ }
}
- }
+
+ nonoption_flags_len = nonoption_flags_max_len;
+ } else {
+ nonoption_flags_len = 0;
}
- nonoption_flags_len = nonoption_flags_max_len;
- }
- else
- nonoption_flags_len = 0;
+
#endif
- return optstring;
+ return optstring;
}
\f
/* Scan elements of ARGV (whose length is ARGC) for option characters
long-named options. */
int
-_getopt_internal (argc, argv, optstring, longopts, longind, long_only)
- int argc;
- char *const *argv;
- const char *optstring;
- const struct option *longopts;
- int *longind;
- int long_only;
+_getopt_internal(argc, argv, optstring, longopts, longind, long_only)
+int argc;
+char *const *argv;
+const char *optstring;
+const struct option *longopts;
+int *longind;
+int long_only;
{
- optarg = NULL;
-
- if (optind == 0 || !getopt_initialized)
- {
- if (optind == 0)
- optind = 1; /* Don't scan ARGV[0], the program name. */
- optstring = _getopt_initialize (argc, argv, optstring);
- getopt_initialized = 1;
- }
-
- /* Test whether ARGV[optind] points to a non-option argument.
- Either it does not have option syntax, or there is an environment flag
- from the shell indicating it is not an option. The later information
- is only used when the used in the GNU libc. */
+ optarg = NULL;
+
+ if(optind == 0 || !getopt_initialized) {
+ if(optind == 0) {
+ optind = 1; /* Don't scan ARGV[0], the program name. */
+ }
+
+ optstring = _getopt_initialize(argc, argv, optstring);
+ getopt_initialized = 1;
+ }
+
+ /* Test whether ARGV[optind] points to a non-option argument.
+ Either it does not have option syntax, or there is an environment flag
+ from the shell indicating it is not an option. The later information
+ is only used when the used in the GNU libc. */
#ifdef _LIBC
-#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
- || (optind < nonoption_flags_len \
- && getopt_nonoption_flags[optind] == '1'))
+#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
+ || (optind < nonoption_flags_len \
+ && getopt_nonoption_flags[optind] == '1'))
#else
#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
#endif
- if (nextchar == NULL || *nextchar == '\0')
- {
- /* Advance to the next ARGV-element. */
+ if(nextchar == NULL || *nextchar == '\0') {
+ /* Advance to the next ARGV-element. */
- /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
- moved back by the user (who may also have changed the arguments). */
- if (last_nonopt > optind)
- last_nonopt = optind;
- if (first_nonopt > optind)
- first_nonopt = optind;
+ /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
+ moved back by the user (who may also have changed the arguments). */
+ if(last_nonopt > optind) {
+ last_nonopt = optind;
+ }
- if (ordering == PERMUTE)
- {
- /* If we have just processed some options following some non-options,
- exchange them so that the options come first. */
+ if(first_nonopt > optind) {
+ first_nonopt = optind;
+ }
- if (first_nonopt != last_nonopt && last_nonopt != optind)
- exchange ((char **) argv);
- else if (last_nonopt != optind)
- first_nonopt = optind;
+ if(ordering == PERMUTE) {
+ /* If we have just processed some options following some non-options,
+ exchange them so that the options come first. */
- /* Skip any additional non-options
- and extend the range of non-options previously skipped. */
+ if(first_nonopt != last_nonopt && last_nonopt != optind) {
+ exchange((char **) argv);
+ } else if(last_nonopt != optind) {
+ first_nonopt = optind;
+ }
- while (optind < argc && NONOPTION_P)
- optind++;
- last_nonopt = optind;
- }
+ /* Skip any additional non-options
+ and extend the range of non-options previously skipped. */
- /* The special ARGV-element `--' means premature end of options.
- Skip it like a null option,
- then exchange with previous non-options as if it were an option,
- then skip everything else like a non-option. */
+ while(optind < argc && NONOPTION_P) {
+ optind++;
+ }
- if (optind != argc && !strcmp (argv[optind], "--"))
- {
- optind++;
+ last_nonopt = optind;
+ }
- if (first_nonopt != last_nonopt && last_nonopt != optind)
- exchange ((char **) argv);
- else if (first_nonopt == last_nonopt)
- first_nonopt = optind;
- last_nonopt = argc;
+ /* The special ARGV-element `--' means premature end of options.
+ Skip it like a null option,
+ then exchange with previous non-options as if it were an option,
+ then skip everything else like a non-option. */
- optind = argc;
- }
+ if(optind != argc && !strcmp(argv[optind], "--")) {
+ optind++;
- /* If we have done all the ARGV-elements, stop the scan
- and back over any non-options that we skipped and permuted. */
+ if(first_nonopt != last_nonopt && last_nonopt != optind) {
+ exchange((char **) argv);
+ } else if(first_nonopt == last_nonopt) {
+ first_nonopt = optind;
+ }
- if (optind == argc)
- {
- /* Set the next-arg-index to point at the non-options
- that we previously skipped, so the caller will digest them. */
- if (first_nonopt != last_nonopt)
- optind = first_nonopt;
- return -1;
- }
+ last_nonopt = argc;
- /* If we have come to a non-option and did not permute it,
- either stop the scan or describe it to the caller and pass it by. */
+ optind = argc;
+ }
- if (NONOPTION_P)
- {
- if (ordering == REQUIRE_ORDER)
- return -1;
- optarg = argv[optind++];
- return 1;
- }
+ /* If we have done all the ARGV-elements, stop the scan
+ and back over any non-options that we skipped and permuted. */
- /* We have found another option-ARGV-element.
- Skip the initial punctuation. */
-
- nextchar = (argv[optind] + 1
- + (longopts != NULL && argv[optind][1] == '-'));
- }
-
- /* Decode the current option-ARGV-element. */
-
- /* Check whether the ARGV-element is a long option.
-
- If long_only and the ARGV-element has the form "-f", where f is
- a valid short option, don't consider it an abbreviated form of
- a long option that starts with f. Otherwise there would be no
- way to give the -f short option.
-
- On the other hand, if there's a long option "fubar" and
- the ARGV-element is "-fu", do consider that an abbreviation of
- the long option, just like "--fu", and not "-f" with arg "u".
-
- This distinction seems to be the most useful approach. */
-
- if (longopts != NULL
- && (argv[optind][1] == '-'
- || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
- {
- char *nameend;
- const struct option *p;
- const struct option *pfound = NULL;
- int exact = 0;
- int ambig = 0;
- int indfound = -1;
- int option_index;
-
- for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
- /* Do nothing. */ ;
-
- /* Test all long options for either exact match
- or abbreviated matches. */
- for (p = longopts, option_index = 0; p->name; p++, option_index++)
- if (!strncmp (p->name, nextchar, nameend - nextchar))
- {
- if ((unsigned int) (nameend - nextchar)
- == (unsigned int) strlen (p->name))
- {
- /* Exact match found. */
- pfound = p;
- indfound = option_index;
- exact = 1;
- break;
- }
- else if (pfound == NULL)
- {
- /* First nonexact match found. */
- pfound = p;
- indfound = option_index;
- }
- else
- /* Second or later nonexact match found. */
- ambig = 1;
- }
-
- if (ambig && !exact)
- {
- if (opterr)
- fprintf (stderr, "%s: option `%s' is ambiguous\n",
- argv[0], argv[optind]);
- nextchar += strlen (nextchar);
- optind++;
- optopt = 0;
- return '?';
+ if(optind == argc) {
+ /* Set the next-arg-index to point at the non-options
+ that we previously skipped, so the caller will digest them. */
+ if(first_nonopt != last_nonopt) {
+ optind = first_nonopt;
+ }
+
+ return -1;
+ }
+
+ /* If we have come to a non-option and did not permute it,
+ either stop the scan or describe it to the caller and pass it by. */
+
+ if(NONOPTION_P) {
+ if(ordering == REQUIRE_ORDER) {
+ return -1;
+ }
+
+ optarg = argv[optind++];
+ return 1;
+ }
+
+ /* We have found another option-ARGV-element.
+ Skip the initial punctuation. */
+
+ nextchar = (argv[optind] + 1
+ + (longopts != NULL && argv[optind][1] == '-'));
}
- if (pfound != NULL)
- {
- option_index = indfound;
- optind++;
- if (*nameend)
- {
- /* Don't test has_arg with >, because some C compilers don't
- allow it to be used on enums. */
- if (pfound->has_arg)
- optarg = nameend + 1;
- else
- {
- if (opterr)
- {
- if (argv[optind - 1][1] == '-')
- /* --option */
- fprintf (stderr,
- "%s: option `--%s' doesn't allow an argument\n",
- argv[0], pfound->name);
- else
- /* +option or -option */
- fprintf (stderr,
- "%s: option `%c%s' doesn't allow an argument\n",
- argv[0], argv[optind - 1][0], pfound->name);
- }
-
- nextchar += strlen (nextchar);
-
- optopt = pfound->val;
- return '?';
+ /* Decode the current option-ARGV-element. */
+
+ /* Check whether the ARGV-element is a long option.
+
+ If long_only and the ARGV-element has the form "-f", where f is
+ a valid short option, don't consider it an abbreviated form of
+ a long option that starts with f. Otherwise there would be no
+ way to give the -f short option.
+
+ On the other hand, if there's a long option "fubar" and
+ the ARGV-element is "-fu", do consider that an abbreviation of
+ the long option, just like "--fu", and not "-f" with arg "u".
+
+ This distinction seems to be the most useful approach. */
+
+ if(longopts != NULL
+ && (argv[optind][1] == '-'
+ || (long_only && (argv[optind][2] || !my_index(optstring, argv[optind][1]))))) {
+ char *nameend;
+ const struct option *p;
+ const struct option *pfound = NULL;
+ int exact = 0;
+ int ambig = 0;
+ int indfound = -1;
+ int option_index;
+
+ for(nameend = nextchar; *nameend && *nameend != '='; nameend++)
+ /* Do nothing. */ ;
+
+ /* Test all long options for either exact match
+ or abbreviated matches. */
+ for(p = longopts, option_index = 0; p->name; p++, option_index++)
+ if(!strncmp(p->name, nextchar, nameend - nextchar)) {
+ if((unsigned int)(nameend - nextchar)
+ == (unsigned int) strlen(p->name)) {
+ /* Exact match found. */
+ pfound = p;
+ indfound = option_index;
+ exact = 1;
+ break;
+ } else if(pfound == NULL) {
+ /* First nonexact match found. */
+ pfound = p;
+ indfound = option_index;
+ } else
+ /* Second or later nonexact match found. */
+ {
+ ambig = 1;
+ }
+ }
+
+ if(ambig && !exact) {
+ if(opterr)
+ fprintf(stderr, "%s: option `%s' is ambiguous\n",
+ argv[0], argv[optind]);
+
+ nextchar += strlen(nextchar);
+ optind++;
+ optopt = 0;
+ return '?';
}
- }
- else if (pfound->has_arg == 1)
- {
- if (optind < argc)
- optarg = argv[optind++];
- else
- {
- if (opterr)
- fprintf (stderr,
- "%s: option `%s' requires an argument\n",
- argv[0], argv[optind - 1]);
- nextchar += strlen (nextchar);
- optopt = pfound->val;
- return optstring[0] == ':' ? ':' : '?';
+
+ if(pfound != NULL) {
+ option_index = indfound;
+ optind++;
+
+ if(*nameend) {
+ /* Don't test has_arg with >, because some C compilers don't
+ allow it to be used on enums. */
+ if(pfound->has_arg) {
+ optarg = nameend + 1;
+ } else {
+ if(opterr) {
+ if(argv[optind - 1][1] == '-')
+ /* --option */
+ fprintf(stderr,
+ "%s: option `--%s' doesn't allow an argument\n",
+ argv[0], pfound->name);
+ else
+ /* +option or -option */
+ fprintf(stderr,
+ "%s: option `%c%s' doesn't allow an argument\n",
+ argv[0], argv[optind - 1][0], pfound->name);
+ }
+
+ nextchar += strlen(nextchar);
+
+ optopt = pfound->val;
+ return '?';
+ }
+ } else if(pfound->has_arg == 1) {
+ if(optind < argc) {
+ optarg = argv[optind++];
+ } else {
+ if(opterr)
+ fprintf(stderr,
+ "%s: option `%s' requires an argument\n",
+ argv[0], argv[optind - 1]);
+
+ nextchar += strlen(nextchar);
+ optopt = pfound->val;
+ return optstring[0] == ':' ? ':' : '?';
+ }
+ }
+
+ nextchar += strlen(nextchar);
+
+ if(longind != NULL) {
+ *longind = option_index;
+ }
+
+ if(pfound->flag) {
+ *(pfound->flag) = pfound->val;
+ return 0;
+ }
+
+ return pfound->val;
+ }
+
+ /* Can't find it as a long option. If this is not getopt_long_only,
+ or the option starts with '--' or is not a valid short
+ option, then it's an error.
+ Otherwise interpret it as a short option. */
+ if(!long_only || argv[optind][1] == '-'
+ || my_index(optstring, *nextchar) == NULL) {
+ if(opterr) {
+ if(argv[optind][1] == '-')
+ /* --option */
+ fprintf(stderr, "%s: unrecognized option `--%s'\n",
+ argv[0], nextchar);
+ else
+ /* +option or -option */
+ fprintf(stderr, "%s: unrecognized option `%c%s'\n",
+ argv[0], argv[optind][0], nextchar);
+ }
+
+ nextchar = (char *) "";
+ optind++;
+ optopt = 0;
+ return '?';
}
- }
- nextchar += strlen (nextchar);
- if (longind != NULL)
- *longind = option_index;
- if (pfound->flag)
- {
- *(pfound->flag) = pfound->val;
- return 0;
- }
- return pfound->val;
}
- /* Can't find it as a long option. If this is not getopt_long_only,
- or the option starts with '--' or is not a valid short
- option, then it's an error.
- Otherwise interpret it as a short option. */
- if (!long_only || argv[optind][1] == '-'
- || my_index (optstring, *nextchar) == NULL)
+ /* Look at and handle the next short option-character. */
+
{
- if (opterr)
- {
- if (argv[optind][1] == '-')
- /* --option */
- fprintf (stderr, "%s: unrecognized option `--%s'\n",
- argv[0], nextchar);
- else
- /* +option or -option */
- fprintf (stderr, "%s: unrecognized option `%c%s'\n",
- argv[0], argv[optind][0], nextchar);
- }
- nextchar = (char *) "";
- optind++;
- optopt = 0;
- return '?';
- }
- }
-
- /* Look at and handle the next short option-character. */
-
- {
- char c = *nextchar++;
- char *temp = my_index (optstring, c);
-
- /* Increment `optind' when we start to process its last character. */
- if (*nextchar == '\0')
- ++optind;
-
- if (temp == NULL || c == ':')
- {
- if (opterr)
- {
- if (posixly_correct)
- /* 1003.2 specifies the format of this message. */
- fprintf (stderr, "%s: illegal option -- %c\n",
- argv[0], c);
- else
- fprintf (stderr, "%s: invalid option -- %c\n",
- argv[0], c);
- }
- optopt = c;
- return '?';
- }
- /* Convenience. Treat POSIX -W foo same as long option --foo */
- if (temp[0] == 'W' && temp[1] == ';')
- {
- char *nameend;
- const struct option *p;
- const struct option *pfound = NULL;
- int exact = 0;
- int ambig = 0;
- int indfound = 0;
- int option_index;
-
- /* This is an option that requires an argument. */
- if (*nextchar != '\0')
- {
- optarg = nextchar;
- /* If we end this ARGV-element by taking the rest as an arg,
- we must advance to the next element now. */
- optind++;
- }
- else if (optind == argc)
- {
- if (opterr)
- {
- /* 1003.2 specifies the format of this message. */
- fprintf (stderr, "%s: option requires an argument -- %c\n",
- argv[0], c);
- }
- optopt = c;
- if (optstring[0] == ':')
- c = ':';
- else
- c = '?';
- return c;
- }
- else
- /* We already incremented `optind' once;
- increment it again when taking next ARGV-elt as argument. */
- optarg = argv[optind++];
-
- /* optarg is now the argument, see if it's in the
- table of longopts. */
-
- for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
- /* Do nothing. */ ;
-
- /* Test all long options for either exact match
- or abbreviated matches. */
- for (p = longopts, option_index = 0; p->name; p++, option_index++)
- if (!strncmp (p->name, nextchar, nameend - nextchar))
- {
- if ((unsigned int) (nameend - nextchar) == strlen (p->name))
- {
- /* Exact match found. */
- pfound = p;
- indfound = option_index;
- exact = 1;
- break;
+ char c = *nextchar++;
+ char *temp = my_index(optstring, c);
+
+ /* Increment `optind' when we start to process its last character. */
+ if(*nextchar == '\0') {
+ ++optind;
}
- else if (pfound == NULL)
- {
- /* First nonexact match found. */
- pfound = p;
- indfound = option_index;
+
+ if(temp == NULL || c == ':') {
+ if(opterr) {
+ if(posixly_correct)
+ /* 1003.2 specifies the format of this message. */
+ fprintf(stderr, "%s: illegal option -- %c\n",
+ argv[0], c);
+ else
+ fprintf(stderr, "%s: invalid option -- %c\n",
+ argv[0], c);
+ }
+
+ optopt = c;
+ return '?';
+ }
+
+ /* Convenience. Treat POSIX -W foo same as long option --foo */
+ if(temp[0] == 'W' && temp[1] == ';') {
+ char *nameend;
+ const struct option *p;
+ const struct option *pfound = NULL;
+ int exact = 0;
+ int ambig = 0;
+ int indfound = 0;
+ int option_index;
+
+ /* This is an option that requires an argument. */
+ if(*nextchar != '\0') {
+ optarg = nextchar;
+ /* If we end this ARGV-element by taking the rest as an arg,
+ we must advance to the next element now. */
+ optind++;
+ } else if(optind == argc) {
+ if(opterr) {
+ /* 1003.2 specifies the format of this message. */
+ fprintf(stderr, "%s: option requires an argument -- %c\n",
+ argv[0], c);
+ }
+
+ optopt = c;
+
+ if(optstring[0] == ':') {
+ c = ':';
+ } else {
+ c = '?';
+ }
+
+ return c;
+ } else
+ /* We already incremented `optind' once;
+ increment it again when taking next ARGV-elt as argument. */
+ {
+ optarg = argv[optind++];
+ }
+
+ /* optarg is now the argument, see if it's in the
+ table of longopts. */
+
+ for(nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
+ /* Do nothing. */ ;
+
+ /* Test all long options for either exact match
+ or abbreviated matches. */
+ for(p = longopts, option_index = 0; p->name; p++, option_index++)
+ if(!strncmp(p->name, nextchar, nameend - nextchar)) {
+ if((unsigned int)(nameend - nextchar) == strlen(p->name)) {
+ /* Exact match found. */
+ pfound = p;
+ indfound = option_index;
+ exact = 1;
+ break;
+ } else if(pfound == NULL) {
+ /* First nonexact match found. */
+ pfound = p;
+ indfound = option_index;
+ } else
+ /* Second or later nonexact match found. */
+ {
+ ambig = 1;
+ }
+ }
+
+ if(ambig && !exact) {
+ if(opterr)
+ fprintf(stderr, "%s: option `-W %s' is ambiguous\n",
+ argv[0], argv[optind]);
+
+ nextchar += strlen(nextchar);
+ optind++;
+ return '?';
+ }
+
+ if(pfound != NULL) {
+ option_index = indfound;
+
+ if(*nameend) {
+ /* Don't test has_arg with >, because some C compilers don't
+ allow it to be used on enums. */
+ if(pfound->has_arg) {
+ optarg = nameend + 1;
+ } else {
+ if(opterr)
+ fprintf(stderr,
+ "%s: option `-W %s' doesn't allow an argument\n",
+ argv[0], pfound->name);
+
+ nextchar += strlen(nextchar);
+ return '?';
+ }
+ } else if(pfound->has_arg == 1) {
+ if(optind < argc) {
+ optarg = argv[optind++];
+ } else {
+ if(opterr)
+ fprintf(stderr,
+ "%s: option `%s' requires an argument\n",
+ argv[0], argv[optind - 1]);
+
+ nextchar += strlen(nextchar);
+ return optstring[0] == ':' ? ':' : '?';
+ }
+ }
+
+ nextchar += strlen(nextchar);
+
+ if(longind != NULL) {
+ *longind = option_index;
+ }
+
+ if(pfound->flag) {
+ *(pfound->flag) = pfound->val;
+ return 0;
+ }
+
+ return pfound->val;
+ }
+
+ nextchar = NULL;
+ return 'W'; /* Let the application handle it. */
}
- else
- /* Second or later nonexact match found. */
- ambig = 1;
- }
- if (ambig && !exact)
- {
- if (opterr)
- fprintf (stderr, "%s: option `-W %s' is ambiguous\n",
- argv[0], argv[optind]);
- nextchar += strlen (nextchar);
- optind++;
- return '?';
- }
- if (pfound != NULL)
- {
- option_index = indfound;
- if (*nameend)
- {
- /* Don't test has_arg with >, because some C compilers don't
- allow it to be used on enums. */
- if (pfound->has_arg)
- optarg = nameend + 1;
- else
- {
- if (opterr)
- fprintf (stderr,
- "%s: option `-W %s' doesn't allow an argument\n",
- argv[0], pfound->name);
-
- nextchar += strlen (nextchar);
- return '?';
- }
- }
- else if (pfound->has_arg == 1)
- {
- if (optind < argc)
- optarg = argv[optind++];
- else
- {
- if (opterr)
- fprintf (stderr,
- "%s: option `%s' requires an argument\n",
- argv[0], argv[optind - 1]);
- nextchar += strlen (nextchar);
- return optstring[0] == ':' ? ':' : '?';
- }
- }
- nextchar += strlen (nextchar);
- if (longind != NULL)
- *longind = option_index;
- if (pfound->flag)
- {
- *(pfound->flag) = pfound->val;
- return 0;
- }
- return pfound->val;
- }
- nextchar = NULL;
- return 'W'; /* Let the application handle it. */
- }
- if (temp[1] == ':')
- {
- if (temp[2] == ':')
- {
- /* This is an option that accepts an argument optionally. */
- if (*nextchar != '\0')
- {
- optarg = nextchar;
- optind++;
- }
- else
- optarg = NULL;
- nextchar = NULL;
- }
- else
- {
- /* This is an option that requires an argument. */
- if (*nextchar != '\0')
- {
- optarg = nextchar;
- /* If we end this ARGV-element by taking the rest as an arg,
- we must advance to the next element now. */
- optind++;
- }
- else if (optind == argc)
- {
- if (opterr)
- {
- /* 1003.2 specifies the format of this message. */
- fprintf (stderr,
- "%s: option requires an argument -- %c\n",
- argv[0], c);
- }
- optopt = c;
- if (optstring[0] == ':')
- c = ':';
- else
- c = '?';
- }
- else
- /* We already incremented `optind' once;
- increment it again when taking next ARGV-elt as argument. */
- optarg = argv[optind++];
- nextchar = NULL;
- }
- }
- return c;
- }
+
+ if(temp[1] == ':') {
+ if(temp[2] == ':') {
+ /* This is an option that accepts an argument optionally. */
+ if(*nextchar != '\0') {
+ optarg = nextchar;
+ optind++;
+ } else {
+ optarg = NULL;
+ }
+
+ nextchar = NULL;
+ } else {
+ /* This is an option that requires an argument. */
+ if(*nextchar != '\0') {
+ optarg = nextchar;
+ /* If we end this ARGV-element by taking the rest as an arg,
+ we must advance to the next element now. */
+ optind++;
+ } else if(optind == argc) {
+ if(opterr) {
+ /* 1003.2 specifies the format of this message. */
+ fprintf(stderr,
+ "%s: option requires an argument -- %c\n",
+ argv[0], c);
+ }
+
+ optopt = c;
+
+ if(optstring[0] == ':') {
+ c = ':';
+ } else {
+ c = '?';
+ }
+ } else
+ /* We already incremented `optind' once;
+ increment it again when taking next ARGV-elt as argument. */
+ {
+ optarg = argv[optind++];
+ }
+
+ nextchar = NULL;
+ }
+ }
+
+ return c;
+ }
}
int
-getopt (argc, argv, optstring)
- int argc;
- char *const *argv;
- const char *optstring;
+getopt(argc, argv, optstring)
+int argc;
+char *const *argv;
+const char *optstring;
{
- return _getopt_internal (argc, argv, optstring,
- (const struct option *) 0,
- (int *) 0,
- 0);
+ return _getopt_internal(argc, argv, optstring,
+ (const struct option *) 0,
+ (int *) 0,
+ 0);
}
-#endif /* Not ELIDE_CODE. */
+#endif /* Not ELIDE_CODE. */
\f
#ifdef TEST
the above definition of `getopt'. */
int
-main (argc, argv)
- int argc;
- char **argv;
+main(argc, argv)
+int argc;
+char **argv;
{
- int c;
- int digit_optind = 0;
+ int c;
+ int digit_optind = 0;
- while (1)
- {
- int this_option_optind = optind ? optind : 1;
+ while(1) {
+ int this_option_optind = optind ? optind : 1;
- c = getopt (argc, argv, "abc:d:0123456789");
- if (c == -1)
- break;
+ c = getopt(argc, argv, "abc:d:0123456789");
- switch (c)
- {
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- if (digit_optind != 0 && digit_optind != this_option_optind)
- printf ("digits occur in two different argv-elements.\n");
- digit_optind = this_option_optind;
- printf ("option %c\n", c);
- break;
-
- case 'a':
- printf ("option a\n");
- break;
-
- case 'b':
- printf ("option b\n");
- break;
-
- case 'c':
- printf ("option c with value `%s'\n", optarg);
- break;
-
- case '?':
- break;
-
- default:
- printf ("?? getopt returned character code 0%o ??\n", c);
+ if(c == -1) {
+ break;
+ }
+
+ switch(c) {
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ if(digit_optind != 0 && digit_optind != this_option_optind) {
+ printf("digits occur in two different argv-elements.\n");
+ }
+
+ digit_optind = this_option_optind;
+ printf("option %c\n", c);
+ break;
+
+ case 'a':
+ printf("option a\n");
+ break;
+
+ case 'b':
+ printf("option b\n");
+ break;
+
+ case 'c':
+ printf("option c with value `%s'\n", optarg);
+ break;
+
+ case '?':
+ break;
+
+ default:
+ printf("?? getopt returned character code 0%o ??\n", c);
+ }
}
- }
- if (optind < argc)
- {
- printf ("non-option ARGV-elements: ");
- while (optind < argc)
- printf ("%s ", argv[optind++]);
- printf ("\n");
- }
+ if(optind < argc) {
+ printf("non-option ARGV-elements: ");
+
+ while(optind < argc) {
+ printf("%s ", argv[optind++]);
+ }
+
+ printf("\n");
+ }
- exit (0);
+ exit(0);
}
#endif /* TEST */
projects / tinc / blobdiff