/*
* cmp():
* File Compare...
* Use the standard TFS facilities to compare two different incoming files.
* Return 0 if files match, else -1.
*/
int
cmp(char *f1, char *f2)
{
TFILE finfo1, *tfp1;
TFILE finfo2, *tfp2;
int fd1, fd2, size, ret;
char *buf1, *buf2;
/* Check sizes first: */
tfp1 = &finfo1;
if (mon_tfsfstat(f1,tfp1) == -1)
die();
tfp2 = &finfo2;
if (mon_tfsfstat(f2,tfp2) == -1)
die();
if (tfp1->filsize != tfp2->filsize)
return(-1);
/* Copy f1 to buffer: */
buf1 = mon_malloc(TFS_SIZE(tfp1));
if (!buf1)
die();
fd1 = mon_tfsopen(f1,TFS_RDONLY,0);
if (fd1 < 0)
tfsdie(fd1);
size = mon_tfsread(fd1,buf1,TFS_SIZE(tfp1));
if (size != TFS_SIZE(tfp1))
tfsdie(size);
ret = mon_tfsclose(fd1,0);
if (ret != TFS_OKAY)
tfsdie(ret);
/* Copy f2 to buffer: */
buf2 = mon_malloc(TFS_SIZE(tfp2));
if (!buf2)
die();
fd2 = mon_tfsopen(f2,TFS_RDONLY,0);
if (fd2 < 0)
tfsdie(fd2);
size = mon_tfsread(fd2,buf2,TFS_SIZE(tfp2));
if (size != TFS_SIZE(tfp2))
tfsdie(size);
ret = mon_tfsclose(fd2,0);
if (ret != TFS_OKAY)
tfsdie(ret);
/* Compare the buffers: */
if (memcmp(buf1,buf2,TFS_SIZE(tfp2)))
ret = -1;
else
ret = 0;
mon_free(buf1);
mon_free(buf2);
return(ret);
}
/*
* trunctest():
* Test file truncation. Verify that file truncates to expected size
* and that the data in the file is as expected.
*/
int
trunctest(char *fname, char *data)
{
int tfd, err, size;
TFILE *tfp;
/* Copy incoming file name to a tempoary file... */
cp(TMPFILE,fname);
/* Open the temporary file and truncate it.
* First verify that a truncation size too big will fail, then
* do a real truncation. Close the file then verify that the
* file has been trunated.
*/
tfd = mon_tfsopen(TMPFILE,TFS_APPEND,buffer1);
if (tfd < 0)
tfsdie(tfd);
err = mon_tfstruncate(tfd,9999999);
if (err != TFSERR_BADARG)
tfsdie(err);
err = mon_tfstruncate(tfd,TRUNCATE_SIZE);
if (err != TFS_OKAY)
tfsdie(err);
err = mon_tfsclose(tfd,0);
if (err < 0)
tfsdie(err);
/* Make sure that the file was truncated to the proper size. */
tfp = mon_tfsstat(TMPFILE);
if (!tfp)
die();
if (TFS_SIZE(tfp) != TRUNCATE_SIZE)
die();
/* Now reopen the file and verify that the data is correct... */
tfd = mon_tfsopen(TMPFILE,TFS_RDONLY,0);
if (tfd < 0)
tfsdie(tfd);
size = mon_tfsread(tfd,buffer1,TFS_SIZE(tfp));
if (size != TFS_SIZE(tfp))
tfsdie(size);
if (memcmp(buffer1,data,TRUNCATE_SIZE))
die();
/* Close and remove the temporary file. */
mon_tfsclose(tfd,0);
err = mon_tfsunlink(TMPFILE);
if (err != TFS_OKAY)
tfsdie(err);
return(0);
}
/* appendtest():
* Create a file, then append to it and verify content after
* closing the file.
*/
int
appendtest(char *fname, char *data1, char *data2)
{
TFILE finfo, *tfp;
int err, tfd, len;
/* Create the first version of the file:
*/
err = mon_tfsadd(fname,0,0,data1,strlen(data1));
if (err != TFS_OKAY)
tfsdie(err);
/* Append to that first file:
*/
tfd = mon_tfsopen(fname,TFS_APPEND,buffer1);
if (tfd < 0)
tfsdie(tfd);
err = mon_tfswrite(tfd,data2,strlen(data2));
if (err != TFS_OKAY)
tfsdie(err);
err = mon_tfsclose(tfd,0);
if (err != TFS_OKAY)
tfsdie(err);
/* Verify that the file was properly appended to:
*/
tfp = &finfo;
if (mon_tfsfstat(fname,tfp) == -1)
die();
len = strlen(data1) + strlen(data2);
if (len != TFS_SIZE(tfp))
die();
tfd = mon_tfsopen(fname,TFS_RDONLY,0);
if (tfd < 0)
tfsdie(tfd);
err = mon_tfsread(tfd,buffer1,len);
if (err != len)
tfsdie(err);
strcpy(buffer2,data1);
strcat(buffer2,data2);
if (memcmp(buffer1,buffer2,len) != 0)
die();
mon_tfsclose(tfd,0);
return(0);
}
/*
* cp():
* File Copy...
* Use standard TFS facilities to copy one file to another.
* If successful, return the size of the copy; else die.
*/
int
cp(char *to, char *from)
{
TFILE finfo, *tfp;
int ffd, tfd, size, ret;
char *buffer;
/* Open the source file: */
ffd = mon_tfsopen(from,TFS_RDONLY,0);
if (ffd < 0)
tfsdie(ffd);
/* Retrieve stats of the source file: */
tfp = &finfo;
if (mon_tfsfstat(from,tfp) == -1)
die();
/* The buffer used to open the destination file must be as large as
* the source file ...
*/
buffer = mon_malloc(TFS_SIZE(tfp));
if (!buffer)
die();
/* Open the destination file for creation with the same flags
* as the source file:
*/
tfd = mon_tfsopen(to,TFS_CREATE | finfo.flags,buffer);
if (tfd < 0)
tfsdie(tfd);
/* Read the entire source file into buffer, then write the entire
* buffer to the destination file...
*/
size = mon_tfsread(ffd,buffer,TFS_SIZE(tfp));
if (size < 0)
tfsdie(size);
ret = mon_tfswrite(tfd,buffer,TFS_SIZE(tfp));
if (ret != TFS_OKAY)
tfsdie(ret);
mon_tfsclose(ffd,0);
mon_tfsclose(tfd,finfo.info);
mon_free(buffer);
return(TFS_SIZE(tfp));
}
/*
* inusetest():
* Open a file, then try to remove it or add a file with the same name.
* This should fail...
*/
int
inusetest(char *fname)
{
int tfd, err;
/* Open a file, then try to run tfsadd() on it or try to remove it... */
tfd = mon_tfsopen(fname,TFS_RDONLY,0);
if (tfd < 0)
tfsdie(tfd);
err = mon_tfsunlink(fname);
if (err != TFSERR_FILEINUSE)
tfsdie(err);
err = mon_tfsadd(fname,0,0,buffer1,10);
if (err != TFSERR_FILEINUSE)
tfsdie(err);
mon_tfsclose(tfd,0);
return(0);
}
int
main(int argc,char *argv[])
{
int i, tfd;
char line[80], *fname;
/* If argument count is greater than one, then dump out the
* set of CLI arguments...
*/
if (argc > 1) {
mon_printf("Argument list...\n");
for(i=0; i<argc; i++)
mon_printf(" arg[%d]: %s\n",i,argv[i]);
}
/* If the shell variable "USE_THIS_FILE" exists, then use the
* content of that shell variable as a filename; else use "monrc"...
*/
fname = mon_getenv("USE_THIS_FILE");
if (!fname)
fname = "monrc";
/* If the file exists, the assume it is ASCII and dump it
* line by line...
*/
if (mon_tfsstat(fname)) {
mon_printf("Dumping content of '%s'...\n",fname);
tfd = mon_tfsopen(fname,TFS_RDONLY,0);
if (tfd >= 0) {
while(mon_tfsgetline(tfd,line,sizeof(line)))
mon_printf("%s",line);
mon_tfsclose(tfd,0);
}
else {
mon_printf("TFS error: %s\n",
(char *)mon_tfsctrl(TFS_ERRMSG,tfd,0));
}
}
return(0);
}
/*
* getlinetest():
* The incoming filename is assumed to have been previously created with
* the data pointed to by the incoming data pointer.
* Lines are read from the file via tfsgetline() and the buffer is filled
* with what should be the same data as is pulled in by tfsgetline().
*/
void
getlinetest(char *file, char *data)
{
int llen, tfd, err;
tfd = mon_tfsopen(file,TFS_RDONLY,0);
if (tfd < 0)
tfsdie(tfd);
/* Retrieve a line from the file: */
err = mon_tfsgetline(tfd,buffer1,sizeof(buffer1));
if (err < 0)
tfsdie(err);
/* Retrieve the same line from the data: */
for(llen=0;*data;llen++,data++) {
buffer2[llen] = *data;
if (*data == '\n')
break;
}
buffer2[llen+1] = 0;
/* They should match... */
if (memcmp(buffer1,buffer2,llen))
die();
/* Again... */
/* Retrieve a line from the file: */
err = mon_tfsgetline(tfd,buffer1,sizeof(buffer1));
if (err < 0)
tfsdie(err);
/* Retrieve the same line from the data: */
for(llen=0;*data;llen++,data++) {
buffer2[llen] = *data;
if (*data == '\n')
break;
}
buffer2[llen+1] = 0;
/* They should match... */
if (memcmp(buffer1,buffer2,llen))
die();
/* One more line... */
/* Retrieve a line from the file: */
err = mon_tfsgetline(tfd,buffer1,sizeof(buffer1));
if (err < 0)
tfsdie(err);
/* Retrieve the same line from the data: */
for(llen=0;*data;llen++,data++) {
buffer2[llen] = *data;
if (*data == '\n')
break;
}
buffer2[llen+1] = 0;
/* They should match... */
if (memcmp(buffer1,buffer2,llen))
die();
mon_tfsclose(tfd,0);
}
/*
* ctrltest():
* Test various aspects of the tfsctrl() function.
*/
void
ctrltest(char *fname, char *data)
{
int tfd, ret;
char flags[16];
/* Copy fname to TMPFILE... */
cp (TMPFILE,fname);
/* Verify TFS_UNOPEN...
* Open a file, modify it, then prior to calling tfsclose(), call
* tfsctrl(TFS_UNOPEN) on that file descriptor and make sure the
* file is in its original state and the file descriptor has been
* closed...
*/
tfd = mon_tfsopen(fname,TFS_APPEND,buffer1);
if (tfd < 0)
tfsdie(tfd);
ret = mon_tfswrite(tfd,"abcdefg",7);
if (ret != TFS_OKAY)
tfsdie(ret);
ret = mon_tfsctrl(TFS_UNOPEN,tfd,0);
if (ret != TFS_OKAY)
tfsdie(ret);
ret = mon_tfsclose(tfd,0);
if (ret != TFSERR_BADFD)
tfsdie(ret);
if (cmp(TMPFILE,fname))
die();
/* Verify TFS_TELL...
* Open a file, seek to a known point, then make sure that
* tfsctrl(TFS_TELL) returns the expected offset.
*/
tfd = mon_tfsopen(fname,TFS_RDONLY,0);
if (tfd < 0)
tfsdie(tfd);
ret = mon_tfsseek(tfd,5,TFS_BEGIN);
if (ret != 5)
tfsdie(ret);
ret = mon_tfsctrl(TFS_TELL,tfd,0);
if (ret != 5)
tfsdie(ret);
ret = mon_tfsread(tfd,buffer1,3);
if (ret != 3)
tfsdie(ret);
ret = mon_tfsctrl(TFS_TELL,tfd,0);
if (ret != 5+3)
tfsdie(ret);
ret = mon_tfsclose(tfd,0);
if (ret != TFS_OKAY)
tfsdie(ret);
/* Test all "flag-ascii-to-binary" conversions... */
if ((ret = mon_tfsctrl(TFS_FATOB,(long)"e",0)) != TFS_EXEC)
tfsdie(ret);
if ((ret = mon_tfsctrl(TFS_FATOB,(long)"b",0)) != TFS_BRUN)
tfsdie(ret);
if ((ret = mon_tfsctrl(TFS_FATOB,(long)"B",0)) != TFS_QRYBRUN)
tfsdie(ret);
#if 0
if ((ret = mon_tfsctrl(TFS_FATOB,(long)"C",0)) != TFS_COFF)
tfsdie(ret);
if ((ret = mon_tfsctrl(TFS_FATOB,(long)"E",0)) != TFS_ELF)
tfsdie(ret);
if ((ret = mon_tfsctrl(TFS_FATOB,(long)"A",0)) != TFS_AOUT)
tfsdie(ret);
#else
if ((ret = mon_tfsctrl(TFS_FATOB,(long)"E",0)) != TFS_EBIN)
tfsdie(ret);
#endif
if ((ret = mon_tfsctrl(TFS_FATOB,(long)"c",0)) != TFS_CPRS)
tfsdie(ret);
if ((ret = mon_tfsctrl(TFS_FATOB,(long)"i",0)) != TFS_IPMOD)
tfsdie(ret);
if ((ret = mon_tfsctrl(TFS_FATOB,(long)"u",0)) != TFS_UNREAD)
tfsdie(ret);
if ((ret = mon_tfsctrl(TFS_FATOB,(long)"1",0)) != TFS_ULVL1)
tfsdie(ret);
if ((ret = mon_tfsctrl(TFS_FATOB,(long)"2",0)) != TFS_ULVL2)
tfsdie(ret);
if ((ret = mon_tfsctrl(TFS_FATOB,(long)"3",0)) != TFS_ULVL3)
tfsdie(ret);
/* Test all "flag-binary-to-ascii" conversions... */
ret = mon_tfsctrl(TFS_FBTOA,TFS_EXEC,(long)flags);
if ((ret == TFSERR_BADARG) || (strcmp(flags,"e")))
tfsdie(ret);
ret = mon_tfsctrl(TFS_FBTOA,TFS_BRUN,(long)flags);
if ((ret == TFSERR_BADARG) || (strcmp(flags,"b")))
tfsdie(ret);
ret = mon_tfsctrl(TFS_FBTOA,TFS_QRYBRUN,(long)flags);
if ((ret == TFSERR_BADARG) || (strcmp(flags,"B")))
tfsdie(ret);
#if 0
ret = mon_tfsctrl(TFS_FBTOA,TFS_COFF,(long)flags);
if ((ret == TFSERR_BADARG) || (strcmp(flags,"C")))
tfsdie(ret);
ret = mon_tfsctrl(TFS_FBTOA,TFS_ELF,(long)flags);
if ((ret == TFSERR_BADARG) || (strcmp(flags,"E")))
tfsdie(ret);
ret = mon_tfsctrl(TFS_FBTOA,TFS_AOUT,(long)flags);
if ((ret == TFSERR_BADARG) || (strcmp(flags,"A")))
tfsdie(ret);
#else
ret = mon_tfsctrl(TFS_FBTOA,TFS_EBIN,(long)flags);
if ((ret == TFSERR_BADARG) || (strcmp(flags,"E")))
tfsdie(ret);
#endif
ret = mon_tfsctrl(TFS_FBTOA,TFS_CPRS,(long)flags);
if ((ret == TFSERR_BADARG) || (strcmp(flags,"c")))
tfsdie(ret);
ret = mon_tfsctrl(TFS_FBTOA,TFS_IPMOD,(long)flags);
if ((ret == TFSERR_BADARG) || (strcmp(flags,"i")))
tfsdie(ret);
ret = mon_tfsctrl(TFS_FBTOA,TFS_UNREAD,(long)flags);
if ((ret == TFSERR_BADARG) || (strcmp(flags,"u")))
tfsdie(ret);
ret = mon_tfsctrl(TFS_FBTOA,TFS_ULVL1,(long)flags);
if ((ret == TFSERR_BADARG) || (strcmp(flags,"1")))
tfsdie(ret);
ret = mon_tfsctrl(TFS_FBTOA,TFS_ULVL2,(long)flags);
if ((ret == TFSERR_BADARG) || (strcmp(flags,"2")))
tfsdie(ret);
ret = mon_tfsctrl(TFS_FBTOA,TFS_ULVL3,(long)flags);
if ((ret == TFSERR_BADARG) || (strcmp(flags,"3")))
tfsdie(ret);
ret = mon_tfsunlink(TMPFILE);
if (ret != TFS_OKAY)
tfsdie(ret);
}
/* writetest():
* Open the specified file in APPEND (modify) mode. Seek into the file
* and read 1 byte. Increment that byte by one and then write it back
* to the same location from which it was read. Then, close the file.
* Build a new file that is what "should" be the content of the file we
* just modified and compare the two files. They better match.
* This function also verifies TFS_HEADROOM.
*/
int
writetest(char *fname, char *newdata)
{
TFILE *tfp;
char c;
long headroom;
int size, tfd, err;
/* Open the source file: */
tfp = mon_tfsstat(fname);
if (!tfp)
die();
size = TFS_SIZE(tfp);
tfd = mon_tfsopen(fname,TFS_APPEND,buffer1);
if (tfd < 0)
tfsdie(tfd);
headroom = mon_tfsctrl(TFS_HEADROOM,tfd,0);
if (headroom != 0)
die();
err = mon_tfsseek(tfd,3,TFS_BEGIN);
if (err != 3)
tfsdie(err);
headroom = mon_tfsctrl(TFS_HEADROOM,tfd,0);
if (headroom != (size-3))
die();
err = mon_tfsread(tfd,&c,1);
if (err != 1)
tfsdie(err);
headroom = mon_tfsctrl(TFS_HEADROOM,tfd,0);
if (headroom != (size-4))
die();
c++;
err = mon_tfsseek(tfd,-1,TFS_CURRENT);
if (err != 3)
tfsdie(err);
headroom = mon_tfsctrl(TFS_HEADROOM,tfd,0);
if (headroom != (size-3))
die();
err = mon_tfswrite(tfd,&c,1);
if (err != TFS_OKAY)
tfsdie(err);
headroom = mon_tfsctrl(TFS_HEADROOM,tfd,0);
if (headroom != (size-4))
die();
mon_tfsclose(tfd,0);
/* Add a new file that "should" be identical to the modified file;
* then compare them and delete the newfile...
*/
err = mon_tfsadd(TMPFILE,"newdata1","2",newdata,strlen(newdata));
if (err != TFS_OKAY)
tfsdie(err);
if (cmp(fname,TMPFILE) != 0)
die();
err = mon_tfsunlink(TMPFILE);
if (err != TFS_OKAY)
tfsdie(err);
return(0);
}
/* seektest():
* Run some tests on tfsseek().
* Verify that the character in the file specified at the incoming offset
* is as expected. Seek to beyond the end of file and verify error, etc...
*/
int
seektest(char *fname, int offset, char value)
{
char c, buf1[16], buf2[16];
TFILE *tfp;
int tfd, end, err;
/* Open the source file: */
tfd = mon_tfsopen(fname,TFS_RDONLY,0);
if (tfd < 0)
tfsdie(tfd);
if (mon_tfsseek(tfd,offset,TFS_BEGIN) != offset)
tfsdie(tfd);
if (mon_tfsread(tfd,&c,1) != 1)
tfsdie(tfd);
if (c != value)
die();
tfp = mon_tfsstat(fname);
if (!tfp)
die();
end = TFS_SIZE(tfp);
/*
* Seek to various limits in the file and verify proper return
* value...
*/
err = mon_tfsseek(tfd,0,TFS_BEGIN);
if (err != 0)
tfsdie(err);
err = mon_tfsseek(tfd,end,TFS_CURRENT);
if (err != end)
tfsdie(err);
err = mon_tfsseek(tfd,1,TFS_CURRENT);
if (err != TFSERR_EOF)
tfsdie(err);
err = mon_tfsseek(tfd,end,TFS_BEGIN);
if (err != end)
tfsdie(err);
err = mon_tfsseek(tfd,end+1,TFS_BEGIN);
if (err != TFSERR_EOF)
tfsdie(err);
err = mon_tfsseek(tfd,0,TFS_BEGIN);
if (err != 0)
tfsdie(err);
err = mon_tfsseek(tfd,-1,TFS_CURRENT);
if (err != TFSERR_EOF)
tfsdie(err);
err = mon_tfsseek(tfd,end,TFS_BEGIN);
if (err != end)
tfsdie(err);
err = mon_tfsseek(tfd,-1,TFS_CURRENT);
if (err != end-1)
tfsdie(err);
err = mon_tfsseek(tfd,2,TFS_CURRENT);
if (err != TFSERR_EOF)
tfsdie(err);
/* Seek to beginning, read 10, seek to beginning again read 10 again.
* Verify that both reads have same data.
*/
err = mon_tfsseek(tfd,0,TFS_BEGIN);
if (err != 0)
tfsdie(err);
err = mon_tfsread(tfd,buf1,10);
if (err != 10)
tfsdie(err);
err = mon_tfsseek(tfd,0,TFS_BEGIN);
if (err != 0)
tfsdie(err);
err = mon_tfsread(tfd,buf2,10);
if (err != 10)
tfsdie(err);
if (memcmp(buf1,buf2,10))
die();
/*
* Seek to end, then verify that read() returns EOF and tfs_eof()
* returns true.
*/
err = mon_tfsseek(tfd,end,TFS_BEGIN);
if (err != end)
tfsdie(err);
err = mon_tfsread(tfd,buf1,1);
if (err != TFSERR_EOF)
tfsdie(err);
if (mon_tfseof(tfd) != 1)
die();
mon_tfsclose(tfd,0);
return(0);
}
/*
* The routine which does most of the work for the IMFS open handler
* The full_path_name here is all text AFTER the TFS_PATHNAME_PREFIX
* string, so if the filename is "/TFS/abc", the full_path_name string
* is "abc"...
*
* Attempts to remap the incoming flags to TFS equivalent.
* Its not a perfect mapping, but gets pretty close.
* A comma-delimited path is supported to allow the user
* to specify TFS-stuff (flag string, info string, and a buffer).
* For example:
* abc,e,script,0x400000
* This is a file called "abc" that will have the TFS 'e' flag
* and the TFS info field of "script". The storage buffer is
* supplied by the user at 0x400000.
*/
static int rtems_tfs_open_worker(
rtems_libio_t *iop,
char *path,
int oflag,
mode_t mode
)
{
static int beenhere = 0;
long flagmode;
int tfdidx, tfd;
struct tfdinfo *tip;
char *buf, *fstr, *istr, *bstr, pathcopy[TFSNAMESIZE*3+1];
if (RTEMS_TFS_DEBUG)
printk("_open_r(%s,0x%" PRIx32 ",0x%" PRIx32 ")\n",path,oflag,mode);
if (!beenhere) {
newlib_tfdlock();
for(tfdidx=0; tfdidx<MAXTFDS; tfdidx++)
tfdtable[tfdidx].inuse = 0;
tfdtable[0].inuse = 1; /* fake entry for stdin */
tfdtable[1].inuse = 1; /* fake entry for stdout */
tfdtable[2].inuse = 1; /* fake entry for stderr */
newlib_tfdunlock();
beenhere = 1;
}
istr = fstr = bstr = buf = (char *)0;
/* Copy the incoming path to a local array so that we can safely
* modify the string...
*/
if (strlen(path) > TFSNAMESIZE*3) {
return(ENAMETOOLONG);
}
strcpy(pathcopy,path);
/* The incoming string may have commas that are used to delimit the
* name from the TFS flag string, TFS info string and buffer.
* Check for the commas and test for maximum string length...
*/
fstr = strchr(pathcopy,',');
if (fstr) {
*fstr++ = 0;
istr = strchr(fstr,',');
if (istr) {
*istr++ = 0;
bstr = strchr(istr,',');
if (bstr)
*bstr++ = 0;
}
}
if (strlen(pathcopy) > TFSNAMESIZE) {
return(ENAMETOOLONG);
}
if (istr) {
if (strlen(istr) > TFSNAMESIZE) {
return(ENAMETOOLONG);
}
}
/* If O_EXCL and O_CREAT are set, then fail if the file exists...
*/
if ((oflag & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL)) {
if (mon_tfsstat((char *)pathcopy)) {
return(EEXIST);
}
}
/* Only a few flag combinations are supported...
* O_RDONLY Simple read-only
* O_WRONLY | O_APPEND Each write starts at end of file
* O_WRONLY | O_TRUNC If file exists, truncate it
* O_WRONLY | O_CREAT Create if it doesn't exist
* O_WRONLY | O_CREAT | O_EXCL Fail if file exists
*/
switch(oflag & O_ACCMODE) {
case O_RDONLY:
flagmode = TFS_RDONLY;
break;
case O_WRONLY|O_APPEND:
flagmode = TFS_APPEND;
break;
case O_WRONLY|O_TRUNC:
case O_WRONLY|O_CREAT|O_TRUNC:
mon_tfsunlink((char *)pathcopy);
flagmode = TFS_CREATE|TFS_APPEND;
break;
case O_WRONLY|O_CREAT:
case O_WRONLY|O_CREAT|O_APPEND:
flagmode = TFS_CREATE|TFS_APPEND;
break;
case O_RDWR:
case O_WRONLY|O_CREAT|O_EXCL:
flagmode = TFS_CREATE|TFS_APPEND;
break;
default:
printk("_open_r(): flag 0x%i not supported\n",oflag);
return(ENOTSUP);
}
/* Find an open slot in our tfd table:
*/
newlib_tfdlock();
for(tfdidx=0; tfdidx<MAXTFDS; tfdidx++) {
if (tfdtable[tfdidx].inuse == 0)
break;
}
if (tfdidx == MAXTFDS) {
newlib_tfdunlock();
return(EMFILE);
}
tip = &tfdtable[tfdidx];
tip->inuse = 1;
newlib_tfdunlock();
/* If file is opened for something other than O_RDONLY, then
* we need to allocate a buffer for the file..
* WARNING: It is the user's responsibility to make sure that
* the file size does not exceed this buffer. Note that the
* buffer may be specified as part of the comma-delimited path.
*/
if (flagmode == TFS_RDONLY) {
buf = (char *)0;
} else {
if (bstr)
buf = (char *)strtol(bstr,0,0);
else
buf = malloc(MAXFILESIZE);
if (!buf) {
newlib_tfdlock();
tip->inuse = 0;
newlib_tfdunlock();
return(ENOMEM);
}
}
/* Deal with tfs flags and tfs info fields if necessary:
*/
if (fstr) {
long bflag;
bflag = mon_tfsctrl(TFS_FATOB,(long)fstr,0);
if (bflag == -1) {
return(EINVAL);
}
flagmode |= bflag;
}
if (istr)
strcpy(tip->info,istr);
else
tip->info[0] = 0;
tfd = mon_tfsopen((char *)pathcopy,flagmode,buf);
if (tfd >= 0) {
tip->tfd = tfd;
tip->buf = buf;
strcpy(tip->name,pathcopy);
iop->data0 = (uint32_t)tfdidx;
return(0);
} else {
printk("%s: %s\n",pathcopy,
(char *)mon_tfsctrl(TFS_ERRMSG,tfd,0));
}
if (buf)
free(buf);
newlib_tfdlock();
tip->inuse = 0;
newlib_tfdunlock();
return(EINVAL);
}
