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SCP: Add natural Windows support for RAW device names. Fixes issue raised in #67.

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Also avoid confusion when processing -F switch while also copying/creating a VHD
This commit is contained in:
Mark Pizzolato 2015-06-28 14:14:19 -07:00
parent 047a6b856f
commit 133572908f
1 changed files with 17 additions and 0 deletions
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17
sim_disk.c
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@ -837,6 +837,7 @@ if (sim_switches & SWMASK ('F')) { /* format spec? */
return SCPE_2FARG;
if (sim_disk_set_fmt (uptr, 0, gbuf, NULL) != SCPE_OK)
return SCPE_ARG;
sim_switches = sim_switches & ~(SWMASK ('F')); /* Record Format specifier already processed */
}
if (sim_switches & SWMASK ('D')) { /* create difference disk? */
char gbuf[CBUFSIZE];
@ -1652,6 +1653,22 @@ if (strchr (openmode, 'r'))
DesiredAccess |= GENERIC_READ;
if (strchr (openmode, 'w') || strchr (openmode, '+'))
DesiredAccess |= GENERIC_WRITE;
/* SCP Command Line parsing replaces \\ with \ presuming this is an
escape sequence. This only affecdts RAW device names and UNC paths.
We handle the RAW device name case here by prepending paths beginning
with \.\ with an extra \. */
if (!memcmp ("\\.\\", rawdevicename, 3)) {
char *tmpname = malloc (2 + strlen (rawdevicename));
if (tmpname == NULL)
return NULL;
*tmpname = '\\';
strcpy (tmpname + 1, rawdevicename);
Handle = CreateFileA (tmpname, DesiredAccess, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS|FILE_FLAG_WRITE_THROUGH, NULL);
free (tmpname);
if (Handle != INVALID_HANDLE_VALUE)
return (FILE *)Handle;
}
Handle = CreateFileA (rawdevicename, DesiredAccess, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_RANDOM_ACCESS|FILE_FLAG_WRITE_THROUGH, NULL);
if (Handle == INVALID_HANDLE_VALUE) {
_set_errno_from_status (GetLastError ());