2000-09-03 05:52:30 +02:00
|
|
|
/*
|
|
|
|
* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
|
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
|
|
* under the terms of version 2 of the GNU General Public License as
|
|
|
|
* published by the Free Software Foundation.
|
|
|
|
*
|
|
|
|
* This program is distributed in the hope that it would be useful, but
|
|
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
*
|
|
|
|
* Further, this software is distributed without any warranty that it is
|
|
|
|
* free of the rightful claim of any third person regarding infringement
|
|
|
|
* or the like. Any license provided herein, whether implied or
|
|
|
|
* otherwise, applies only to this software file. Patent licenses, if
|
|
|
|
* any, provided herein do not apply to combinations of this program with
|
|
|
|
* other software, or any other product whatsoever.
|
|
|
|
*
|
|
|
|
* You should have received a copy of the GNU General Public License along
|
|
|
|
* with this program; if not, write the Free Software Foundation, Inc., 59
|
|
|
|
* Temple Place - Suite 330, Boston MA 02111-1307, USA.
|
|
|
|
*
|
|
|
|
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
|
|
|
|
* Mountain View, CA 94043, or:
|
|
|
|
*
|
|
|
|
* http://www.sgi.com
|
|
|
|
*
|
|
|
|
* For further information regarding this notice, see:
|
|
|
|
*
|
|
|
|
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
|
|
|
|
*/
|
|
|
|
/**************************************************************
|
|
|
|
*
|
|
|
|
* OS Testing - Silicon Graphics, Inc.
|
|
|
|
*
|
|
|
|
* FUNCTION NAME : parse_open_flags
|
|
|
|
* openflags2symbols
|
|
|
|
*
|
|
|
|
* FUNCTION TITLE : converts open flag symbols into bitmask
|
|
|
|
* converts open flag bitmask into symbols
|
|
|
|
*
|
|
|
|
* SYNOPSIS:
|
|
|
|
* int parse_open_flags(symbols, badname)
|
|
|
|
* char *symbols;
|
|
|
|
* char **badname;
|
|
|
|
*
|
|
|
|
* char *openflags2symbols(openflags, sep, mode)
|
|
|
|
* int openflags;
|
|
|
|
* char *sep;
|
|
|
|
* int mode;
|
|
|
|
*
|
|
|
|
* AUTHOR : Richard Logan
|
|
|
|
*
|
|
|
|
* CO-PILOT(s) : Dean Roehrich
|
|
|
|
*
|
|
|
|
* INITIAL RELEASE : UNICOS 8.0
|
|
|
|
*
|
|
|
|
* DESIGN DESCRIPTION
|
|
|
|
* The parse_open_flags function can be used to convert
|
|
|
|
* a list of comma separated open(2) flag symbols (i.e. O_TRUNC)
|
|
|
|
* into the bitmask that can be used by open(2).
|
|
|
|
* If a symbol is unknown and <badname> is not NULL, <badname>
|
|
|
|
* will updated to point that symbol in <string>.
|
|
|
|
* Parse_open_flags will return -1 on this error.
|
|
|
|
* Otherwise parse_open_flags will return the open flag bitmask.
|
|
|
|
* If parse_open_flags returns, <string> will left unchanged.
|
|
|
|
*
|
|
|
|
* The openflags2symbols function attempts to convert open flag
|
|
|
|
* bits into human readable symbols (i.e. O_TRUNC). If there
|
|
|
|
* are more than one symbol, the <sep> string will be placed as
|
|
|
|
* a separator between symbols. Commonly used separators would
|
|
|
|
* be a comma "," or pipe "|". If <mode> is one and not all
|
|
|
|
* <openflags> bits can be converted to symbols, the "UNKNOWN"
|
|
|
|
* symbol will be added to return string.
|
|
|
|
* Openflags2symbols will return the indentified symbols.
|
|
|
|
* If no symbols are recognized the return value will be a empty
|
|
|
|
* string or the "UNKNOWN" symbol.
|
|
|
|
*
|
|
|
|
* SPECIAL REQUIREMENTS
|
|
|
|
* None.
|
|
|
|
*
|
|
|
|
* UPDATE HISTORY
|
|
|
|
* This should contain the description, author, and date of any
|
|
|
|
* "interesting" modifications (i.e. info should helpful in
|
|
|
|
* maintaining/enhancing this module).
|
|
|
|
* username description
|
|
|
|
* ----------------------------------------------------------------
|
|
|
|
* rrl This code was first created during the beginning
|
|
|
|
* of the SFS testing days. I think that was in 1993.
|
|
|
|
* This code was updated in 05/96.
|
|
|
|
* (05/96) openflags2symbols was written.
|
|
|
|
*
|
|
|
|
* BUGS/LIMITATIONS
|
|
|
|
* Currently (05/96) all known symbols are coded into openflags2symbols.
|
|
|
|
* If new open flags are added this code will have to updated
|
|
|
|
* to know about them or they will not be recognized.
|
|
|
|
*
|
|
|
|
**************************************************************/
|
|
|
|
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
#include <fcntl.h>
|
|
|
|
#include <sys/param.h>
|
|
|
|
#include <string.h> /* strcat */
|
|
|
|
#include "open_flags.h"
|
|
|
|
|
|
|
|
#define UNKNOWN_SYMBOL "UNKNOWN"
|
|
|
|
|
|
|
|
static char Open_symbols[512]; /* space for openflags2symbols return value */
|
|
|
|
|
|
|
|
struct open_flag_t {
|
2000-09-06 16:21:53 +02:00
|
|
|
const char *symbol;
|
2000-09-03 05:52:30 +02:00
|
|
|
int flag;
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct open_flag_t Open_flags[] = {
|
|
|
|
{ "O_RDONLY", O_RDONLY },
|
|
|
|
{ "O_WRONLY", O_WRONLY },
|
|
|
|
{ "O_RDWR", O_RDWR },
|
|
|
|
{ "O_SYNC", O_SYNC },
|
|
|
|
{ "O_CREAT", O_CREAT },
|
|
|
|
{ "O_TRUNC", O_TRUNC },
|
|
|
|
{ "O_EXCL", O_EXCL },
|
|
|
|
{ "O_APPEND", O_APPEND },
|
|
|
|
{ "O_NONBLOCK", O_NONBLOCK },
|
|
|
|
#if O_NOCTTY
|
|
|
|
{ "O_NOCTTY", O_NOCTTY },
|
|
|
|
#endif
|
|
|
|
#if O_DSYNC
|
|
|
|
{ "O_DSYNC", O_DSYNC },
|
|
|
|
#endif
|
|
|
|
#if O_RSYNC
|
|
|
|
{ "O_RSYNC", O_RSYNC },
|
|
|
|
#endif
|
|
|
|
#if O_ASYNC
|
|
|
|
{ "O_ASYNC", O_ASYNC },
|
|
|
|
#endif
|
|
|
|
#if O_PTYIGN
|
|
|
|
{ "O_PTYIGN", O_PTYIGN },
|
|
|
|
#endif
|
|
|
|
#if O_NDELAY
|
|
|
|
{ "O_NDELAY", O_NDELAY },
|
|
|
|
#endif
|
|
|
|
#if O_RAW
|
|
|
|
{ "O_RAW", O_RAW },
|
|
|
|
#endif
|
|
|
|
#ifdef O_SSD
|
|
|
|
{ "O_SSD", O_SSD },
|
|
|
|
#endif
|
|
|
|
#if O_BIG
|
|
|
|
{ "O_BIG", O_BIG },
|
|
|
|
#endif
|
|
|
|
#if O_PLACE
|
|
|
|
{ "O_PLACE", O_PLACE },
|
|
|
|
#endif
|
|
|
|
#if O_RESTART
|
|
|
|
{ "O_RESTART", O_RESTART },
|
|
|
|
#endif
|
|
|
|
#if O_SFSXOP
|
|
|
|
{ "O_SFSXOP", O_SFSXOP },
|
|
|
|
#endif
|
|
|
|
#if O_SFS_DEFER_TM
|
|
|
|
{ "O_SFS_DEFER_TM", O_SFS_DEFER_TM },
|
|
|
|
#endif
|
|
|
|
#if O_WELLFORMED
|
|
|
|
{ "O_WELLFORMED", O_WELLFORMED },
|
|
|
|
#endif
|
|
|
|
#if O_LDRAW
|
|
|
|
{ "O_LDRAW", O_LDRAW },
|
|
|
|
#endif
|
|
|
|
#if O_T3D
|
|
|
|
{ "O_T3D", O_T3D },
|
|
|
|
#endif /* O_T3D */
|
|
|
|
#if O_PARALLEL
|
|
|
|
{ "O_PARALLEL", O_PARALLEL },
|
|
|
|
{ "O_FSA", O_PARALLEL|O_WELLFORMED|O_RAW }, /* short cut */
|
|
|
|
#endif /* O_PARALLEL */
|
|
|
|
#ifdef O_LARGEFILE
|
|
|
|
{ "O_LARGEFILE", O_LARGEFILE },
|
|
|
|
#endif
|
|
|
|
#ifdef O_DIRECT
|
|
|
|
{ "O_DIRECT", O_DIRECT },
|
|
|
|
#endif
|
|
|
|
#ifdef O_PRIV
|
|
|
|
{ "O_PRIV", O_PRIV },
|
|
|
|
#endif
|
|
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
int
|
|
|
|
parse_open_flags(char *string, char **badname)
|
|
|
|
{
|
|
|
|
int bits = 0;
|
|
|
|
char *name;
|
|
|
|
char *cc;
|
|
|
|
char savecc;
|
|
|
|
int found;
|
|
|
|
int ind;
|
|
|
|
|
|
|
|
name=string;
|
|
|
|
cc=name;
|
|
|
|
|
|
|
|
while ( 1 ) {
|
|
|
|
|
|
|
|
for(; ((*cc != ',') && (*cc != '\0')); cc++);
|
|
|
|
savecc = *cc;
|
|
|
|
*cc = '\0';
|
|
|
|
|
|
|
|
found = 0;
|
|
|
|
|
|
|
|
for(ind=0; ind < sizeof(Open_flags)/sizeof(struct open_flag_t); ind++) {
|
|
|
|
if ( strcmp(name, Open_flags[ind].symbol) == 0 ) {
|
|
|
|
bits |= Open_flags[ind].flag;
|
|
|
|
found=1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
*cc = savecc; /* restore string */
|
|
|
|
|
|
|
|
if ( found == 0 ) { /* invalid name */
|
|
|
|
if ( badname != NULL )
|
|
|
|
*badname = name;
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( savecc == '\0' )
|
|
|
|
break;
|
|
|
|
|
|
|
|
name = ++cc;
|
|
|
|
|
|
|
|
} /* end while */
|
|
|
|
|
|
|
|
return bits;
|
|
|
|
|
|
|
|
} /* end of parse_open_flags */
|
|
|
|
|
|
|
|
|
|
|
|
char *
|
|
|
|
openflags2symbols(int openflags, char *sep, int mode)
|
|
|
|
{
|
|
|
|
int ind;
|
|
|
|
int size;
|
|
|
|
int bits = openflags;
|
|
|
|
int havesome=0;
|
|
|
|
|
|
|
|
Open_symbols[0]='\0';
|
|
|
|
|
|
|
|
size=sizeof(Open_flags)/sizeof(struct open_flag_t);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Deal with special case of O_RDONLY. If O_WRONLY nor O_RDWR
|
|
|
|
* bits are not set, assume O_RDONLY.
|
|
|
|
*/
|
|
|
|
|
|
|
|
if ( (bits & (O_WRONLY | O_RDWR)) == 0 ) {
|
|
|
|
strcat(Open_symbols, "O_RDONLY");
|
|
|
|
havesome=1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Loop through all but O_RDONLY elments of Open_flags
|
|
|
|
*/
|
|
|
|
for(ind=1; ind < size; ind++) {
|
|
|
|
|
|
|
|
if ( (bits & Open_flags[ind].flag) == Open_flags[ind].flag ) {
|
|
|
|
if ( havesome )
|
|
|
|
strcat(Open_symbols, sep);
|
|
|
|
|
|
|
|
strcat(Open_symbols, Open_flags[ind].symbol);
|
|
|
|
havesome++;
|
|
|
|
|
|
|
|
/* remove flag bits from bits */
|
|
|
|
bits = bits & (~Open_flags[ind].flag);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If not all bits were identified and mode was equal to 1,
|
|
|
|
* added UNKNOWN_SYMBOL to return string
|
|
|
|
*/
|
|
|
|
if ( bits && mode == 1 ) { /* not all bits were identified */
|
|
|
|
if ( havesome )
|
|
|
|
strcat(Open_symbols, sep);
|
|
|
|
strcat(Open_symbols, UNKNOWN_SYMBOL);
|
|
|
|
}
|
|
|
|
|
|
|
|
return Open_symbols;
|
|
|
|
|
|
|
|
} /* end of openflags2symbols */
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef UNIT_TEST
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The following code provides a UNIT test main for
|
|
|
|
* parse_open_flags and openflags2symbols functions.
|
|
|
|
*/
|
|
|
|
|
|
|
|
int
|
|
|
|
main(argc, argv)
|
|
|
|
int argc;
|
|
|
|
char **argv;
|
|
|
|
{
|
|
|
|
int bits;
|
|
|
|
int ret;
|
|
|
|
char *err;
|
|
|
|
|
|
|
|
if (argc == 1 ) {
|
|
|
|
printf("Usage: %s openflagsbits\n\t%s symbols\n", argv[0], argv[0]);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( sscanf(argv[1], "%i", &bits) == 1 ) {
|
|
|
|
printf("openflags2symbols(%#o, \",\", 1) returned %s\n",
|
|
|
|
bits, openflags2symbols(bits, ",", 1));
|
|
|
|
|
|
|
|
} else {
|
|
|
|
ret=parse_open_flags(argv[1], &err);
|
|
|
|
if ( ret == -1 )
|
|
|
|
printf("parse_open_flags(%s, &err) returned -1, err = %s\n",
|
|
|
|
argv[0], err);
|
|
|
|
else
|
|
|
|
printf("parse_open_flags(%s, &err) returned %#o\n", argv[0], ret);
|
|
|
|
}
|
|
|
|
|
|
|
|
exit(0);
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif /* end of UNIT_TEST */
|