mirror of https://github.com/postgres/postgres
Peter Eisentraut
23 years ago
parent
6e90803f90
commit
939a59ffc6
@ -0,0 +1,33 @@ |
||||
/*
|
||||
* Portions Copyright (c) 1987, 1993, 1994 |
||||
* The Regents of the University of California. All rights reserved. |
||||
* |
||||
* Portions Copyright (c) 2003 |
||||
* PostgreSQL Global Development Group |
||||
* |
||||
* $Header: /cvsroot/pgsql/src/include/getopt_long.h,v 1.1 2003/01/06 18:53:25 petere Exp $ |
||||
*/ |
||||
|
||||
/* These are picked up from the system's getopt() facility. */ |
||||
extern int opterr; |
||||
extern int optind; |
||||
extern int optopt; |
||||
extern char *optarg; |
||||
|
||||
/* Some systems have this, otherwise you need to define it somewhere. */ |
||||
extern int optreset; |
||||
|
||||
struct option { |
||||
const char *name; |
||||
int has_arg; |
||||
int *flag; |
||||
int val; |
||||
}; |
||||
|
||||
#define no_argument 0 |
||||
#define required_argument 1 |
||||
|
||||
int |
||||
getopt_long(int argc, char * const argv[], |
||||
const char *optstring, |
||||
const struct option *longopts, int *longindex); |
||||
@ -0,0 +1,199 @@ |
||||
/*
|
||||
* getopt_long() -- long options parser |
||||
* |
||||
* Portions Copyright (c) 1987, 1993, 1994 |
||||
* The Regents of the University of California. All rights reserved. |
||||
* |
||||
* Portions Copyright (c) 2003 |
||||
* PostgreSQL Global Development Group |
||||
* |
||||
* Redistribution and use in source and binary forms, with or without |
||||
* modification, are permitted provided that the following conditions |
||||
* are met: |
||||
* 1. Redistributions of source code must retain the above copyright |
||||
* notice, this list of conditions and the following disclaimer. |
||||
* 2. Redistributions in binary form must reproduce the above copyright |
||||
* notice, this list of conditions and the following disclaimer in the |
||||
* documentation and/or other materials provided with the distribution. |
||||
* 3. All advertising materials mentioning features or use of this software |
||||
* must display the following acknowledgement: |
||||
* This product includes software developed by the University of |
||||
* California, Berkeley and its contributors. |
||||
* 4. Neither the name of the University nor the names of its contributors |
||||
* may be used to endorse or promote products derived from this software |
||||
* without specific prior written permission. |
||||
* |
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
||||
* SUCH DAMAGE. |
||||
* |
||||
* $Header: /cvsroot/pgsql/src/port/getopt_long.c,v 1.1 2003/01/06 18:53:25 petere Exp $ |
||||
*/ |
||||
|
||||
#include <stdio.h> |
||||
#include <stdlib.h> |
||||
#include <string.h> |
||||
|
||||
#include "getopt_long.h" |
||||
|
||||
#define BADCH '?' |
||||
#define BADARG ':' |
||||
#define EMSG "" |
||||
|
||||
int |
||||
getopt_long(int argc, char * const argv[], |
||||
const char *optstring, |
||||
const struct option *longopts, int *longindex) |
||||
{ |
||||
static char *place = EMSG; /* option letter processing */ |
||||
char *oli; /* option letter list index */ |
||||
|
||||
if (optreset || !*place) |
||||
{ /* update scanning pointer */ |
||||
optreset = 0; |
||||
|
||||
if (optind >= argc) |
||||
{ |
||||
place = EMSG; |
||||
return -1; |
||||
} |
||||
|
||||
place = argv[optind]; |
||||
|
||||
if (place[0] != '-') |
||||
{ |
||||
place = EMSG; |
||||
return -1; |
||||
} |
||||
|
||||
place++; |
||||
|
||||
if (place[0] && place[0] == '-' && place[1] == '\0') |
||||
{ /* found "--" */ |
||||
++optind; |
||||
place = EMSG; |
||||
return -1; |
||||
} |
||||
|
||||
if (place[0] && place[0] == '-' && place[1]) |
||||
{ |
||||
/* long option */ |
||||
size_t namelen; |
||||
int i; |
||||
|
||||
place++; |
||||
|
||||
namelen = strcspn(place, "="); |
||||
for (i = 0; longopts[i].name != NULL; i++) |
||||
{ |
||||
if (strlen(longopts[i].name) == namelen |
||||
&& strncmp(place, longopts[i].name, namelen) == 0) |
||||
{ |
||||
if (longopts[i].has_arg) |
||||
{ |
||||
if (place[namelen] == '=') |
||||
optarg = place + namelen + 1; |
||||
else if (optind < argc-1) |
||||
{ |
||||
optind++; |
||||
optarg = argv[optind]; |
||||
} |
||||
else |
||||
{ |
||||
if (optstring[0] == ':') |
||||
return BADARG; |
||||
if (opterr) |
||||
fprintf(stderr, |
||||
"%s: option requires an argument -- %s\n", |
||||
argv[0], place); |
||||
place = EMSG; |
||||
optind++; |
||||
return BADCH; |
||||
} |
||||
} |
||||
else |
||||
{ |
||||
optarg = NULL; |
||||
if (place[namelen] != 0) |
||||
{ |
||||
/* XXX error? */ |
||||
} |
||||
} |
||||
|
||||
optind++; |
||||
|
||||
if (longindex) |
||||
*longindex = i; |
||||
|
||||
place = EMSG; |
||||
|
||||
if (longopts[i].flag == NULL) |
||||
return longopts[i].val; |
||||
else |
||||
{ |
||||
*longopts[i].flag = longopts[i].val; |
||||
return 0; |
||||
} |
||||
} |
||||
} |
||||
|
||||
if (opterr && optstring[0] != ':') |
||||
fprintf(stderr, |
||||
"%s: illegal option -- %s\n", argv[0], place); |
||||
place = EMSG; |
||||
optind++; |
||||
return BADCH; |
||||
} |
||||
} |
||||
|
||||
/* short option */ |
||||
optopt = (int) *place++; |
||||
|
||||
oli = strchr(optstring, optopt); |
||||
if (!oli) |
||||
{ |
||||
if (!*place) |
||||
++optind; |
||||
if (opterr && *optstring != ':') |
||||
fprintf(stderr, |
||||
"%s: illegal option -- %c\n", argv[0], optopt); |
||||
return BADCH; |
||||
} |
||||
|
||||
if (oli[1] != ':') |
||||
{ /* don't need argument */ |
||||
optarg = NULL; |
||||
if (!*place) |
||||
++optind; |
||||
} |
||||
else |
||||
{ /* need an argument */ |
||||
if (*place) /* no white space */ |
||||
optarg = place; |
||||
else if (argc <= ++optind) |
||||
{ /* no arg */ |
||||
place = EMSG; |
||||
if (*optstring == ':') |
||||
return BADARG; |
||||
if (opterr) |
||||
fprintf(stderr, |
||||
"%s: option requires an argument -- %c\n", |
||||
argv[0], optopt); |
||||
return BADCH; |
||||
} |
||||
else |
||||
/* white space */ |
||||
optarg = argv[optind]; |
||||
place = EMSG; |
||||
++optind; |
||||
} |
||||
return optopt; |
||||
} |
||||
Loading…
Reference in new issue