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Fix release iobuf on open error

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dschmenk 2013-09-07 23:06:22 -07:00
parent 8a092aec35
commit 6b2e0ece19
1 changed files with 15 additions and 4 deletions
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19
src/fusea2pi.c
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@ -215,6 +215,7 @@ struct stat *unix_stat(struct stat *stbuf, int storage, int access, int blocks,
/*
* ProDOS calls to Apple II Pi.
*/
#if 0
static int io_buff_mask = 0;
static int prodos_alloc_io_buff(void)
{
@ -223,18 +224,25 @@ static int prodos_alloc_io_buff(void)
if ((io_buff_mask & (1 << i)) == 0)
{
io_buff_mask |= (1 << i);
//printf("Alloc io_buff $%04X\n", PRODOS_IO_BUFFER + PRODOS_IO_BUFFER_LEN * i);
return (PRODOS_IO_BUFFER + PRODOS_IO_BUFFER_LEN * i);
}
return 0;
}
static int prodos_free_io_buff(int buf)
{
//printf("Free io_buff $%04X\n", buf);
if (buf < PRODOS_IO_BUFFER || buf > (PRODOS_IO_BUFFER + PRODOS_IO_BUFFER_LEN * PRODOS_IO_BUFFER_NUM))
return -1;
int i = (buf - PRODOS_IO_BUFFER) / PRODOS_IO_BUFFER_LEN;
io_buff_mask &= ~(1 << i);
return i;
}
#else
#define prodos_alloc_io_buff() PRODOS_IO_BUFFER
#define prodos_free_io_buff(b)
#endif
static int prodos_open(unsigned char *prodos_path, int *io_buff)
{
unsigned char refnum;
@ -261,8 +269,12 @@ static int prodos_open(unsigned char *prodos_path, int *io_buff)
a2read(pifd, PRODOS_PARAM_BUFFER + 5, 1, &refnum);
return refnum;
}
prodos_free_io_buff(*io_buff);
*io_buff = 0;
return -result;
}
prodos_free_io_buff(*io_buff);
*io_buff = 0;
return -PRODOS_ERR_UNKNOWN;
}
static int prodos_close(int refnum, int *io_buff)
@ -613,6 +625,7 @@ static int prodos_map_errno(int perr)
case -PRODOS_ERR_ACCESS:
case -PRODOS_ERR_FILE_OPEN:
case -PRODOS_ERR_DUP_VOL:
case -PRODOS_ERR_VOL_DIR_FULL:
uerr = -EACCES;
break;
case -PRODOS_ERR_BAD_CMD:
@ -629,9 +642,7 @@ static int prodos_map_errno(int perr)
case -PRODOS_ERR_BAD_BITMAP:
case -PRODOS_ERR_BAD_BUF_ADDR:
case -PRODOS_ERR_UNKNOWN:
case -PRODOS_ERR_FCB_FULL:
case -PRODOS_ERR_VOL_DIR_FULL:
case -PRODOS_ERR_VCB_FULL:
case -PRODOS_ERR_POS_RANGE:
uerr = -1;
@ -1000,8 +1011,8 @@ static int a2pi_write(const char *path, const char *buf, size_t size, off_t offs
if ((refnum = prodos_open(prodos_path(path, NULL, NULL, NULL), &io_buff)) > 0)
{
if (offset && prodos_set_mark(refnum, offset) == -PRODOS_ERR_EOF)
size = 0;
if (offset)
prodos_set_mark(refnum, offset);
if (size)
size = prodos_write(refnum, buf, size);
prodos_close(refnum, &io_buff);