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Parse the name passed to opendir().

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git-svn-id: svn://svn.cc65.org/cc65/trunk@5678 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz 2012-06-03 15:48:32 +00:00
parent 2a53124b15
commit ea51c5a4e2
1 changed files with 18 additions and 5 deletions
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23
libsrc/cbm/opendir.c
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@ -11,16 +11,28 @@
DIR* __fastcall__ opendir (const char*)
DIR* __fastcall__ opendir (register const char* name)
{
unsigned char buf[32];
DIR* dir = 0;
DIR d;
DIR* dir = 0;
/* Setup file name and offset */
/* Setup the actual file name that is sent to the disk. We accept "0:",
* "1:" and "." as directory names.
*/
d.name[0] = '$';
d.name[1] = '\0';
d.off = sizeof (buf);
if (name == 0 || name[0] == '\0' || (name[0] == '.' && name[1] == '\0')) {
d.name[1] = '\0';
} else if ((name[0] == '0' || name[0] == '1') && name[1] == ':' && name[2] == '\0') {
d.name[1] = name[0];
d.name[2] = '\0';
} else {
errno = EINVAL;
goto exitpoint;
}
/* Set the offset of the first entry */
d.off = sizeof (buf);
/* Open the directory on disk for reading */
d.fd = open (d.name, O_RDONLY);
@ -42,6 +54,7 @@ DIR* __fastcall__ opendir (const char*)
}
}
exitpoint:
/* Done */
return dir;
}