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added "validity of pathnames" comment

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removed perror implementation and trap.asm concheck comments
This commit is contained in:
gdr 1997-08-08 05:09:51 +00:00
parent 353efc72a2
commit 6a8369544e
2 changed files with 68 additions and 32 deletions
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50
NOTES/TO.DO
View File

@ -1,18 +1,22 @@
*******
* soon
*
* $Id: TO.DO,v 1.1 1997/02/28 05:42:26 gdr Exp $
* $Id: TO.DO,v 1.2 1997/08/08 05:09:51 gdr Exp $
*
*******
Use result of _setModeEmulation(3) in appropriate calls. These include
chmod -
fchmod -
creat - done
open - done
stat - unnecessary
fstat - unnecessary
lstat - unnecessary
specifying 'chmod +x' (effectively) on a file of type TXT or SRC should
change that file to be type SRC and auxtype EXEC.
check up on the type of nlink_t, used in stat(2)
Write a test that handles:
@ -33,31 +37,45 @@ libc/sys/exec.c:
These functions should operate closer to GS/OS when possible.
Also need to reduce stack requirements.
*******
* remove from / replace in Orcalib
*******
For the exec* functions, there should be a test for whether
or not the file is of type SRC and auxtype EXEC. If that
is the case, and if the first two characters of the file
are '#!', then the shell should be exec'd instead. (currently,
shell scripts cannot be exec'd)
strerror orcalib/string.asm
perror orcalib/stdio.a
sys_errlist orcalib/stdio.a problem
sys_nerr orcalib/vars.a problem
Fix filename mapping code:
--- inclusion start
> A#38: The first thing to watch for is known compiler and library bugs.
> [...]
> validity of pathnames
> [...]
> - use dynamic directory delimiters. The ':' character is
> always considered to be a directory separator. The '/'
> character is considered to be a directory separator unless
> ':' is present, in which case it is part of the file name.
> This is the closest to GS/OS, but also has some problems
> with POSIX compliance. For example, the PATH environment
> variable is _supposed_ to a list of pathnames delimited
> by the ':' character.
GS/OS behaves a little differently than this paragraph describes. The
first ':' or '/' encountered when scanning the pathname from left to
right is assumed to be the separator. If a '/' occurs first, then any
':'s appearing later are illegal. The paragraph suggests that the '/'
will be considered part of the file name if a ':' appears later. (Your
point about POSIX compliance is still valid, though.)
--- inclusion end
*******
* defer
*******
libc/stdio/perror.c:
use BSDish implementation for perror(3) to avoid stdio.
libc/sys/syscall.c:
for unlink, if file is open, then register a call to unlink
(non-recursive) the file via atexit(3)
libc/sys/trap.asm:
Insert conchecks in trap functions to check to see if GNO
is active and at the right version level. If not, they
should abort.
libc/gen/environ.c:
Review routines. Force them to use GSString routines, reduce
stack usage (depend on dynamic allocation for parm blocks).

50
NOTES/devel/TO.DO
View File

@ -1,18 +1,22 @@
*******
* soon
*
* $Id: TO.DO,v 1.1 1997/02/28 05:42:26 gdr Exp $
* $Id: TO.DO,v 1.2 1997/08/08 05:09:51 gdr Exp $
*
*******
Use result of _setModeEmulation(3) in appropriate calls. These include
chmod -
fchmod -
creat - done
open - done
stat - unnecessary
fstat - unnecessary
lstat - unnecessary
specifying 'chmod +x' (effectively) on a file of type TXT or SRC should
change that file to be type SRC and auxtype EXEC.
check up on the type of nlink_t, used in stat(2)
Write a test that handles:
@ -33,31 +37,45 @@ libc/sys/exec.c:
These functions should operate closer to GS/OS when possible.
Also need to reduce stack requirements.
*******
* remove from / replace in Orcalib
*******
For the exec* functions, there should be a test for whether
or not the file is of type SRC and auxtype EXEC. If that
is the case, and if the first two characters of the file
are '#!', then the shell should be exec'd instead. (currently,
shell scripts cannot be exec'd)
strerror orcalib/string.asm
perror orcalib/stdio.a
sys_errlist orcalib/stdio.a problem
sys_nerr orcalib/vars.a problem
Fix filename mapping code:
--- inclusion start
> A#38: The first thing to watch for is known compiler and library bugs.
> [...]
> validity of pathnames
> [...]
> - use dynamic directory delimiters. The ':' character is
> always considered to be a directory separator. The '/'
> character is considered to be a directory separator unless
> ':' is present, in which case it is part of the file name.
> This is the closest to GS/OS, but also has some problems
> with POSIX compliance. For example, the PATH environment
> variable is _supposed_ to a list of pathnames delimited
> by the ':' character.
GS/OS behaves a little differently than this paragraph describes. The
first ':' or '/' encountered when scanning the pathname from left to
right is assumed to be the separator. If a '/' occurs first, then any
':'s appearing later are illegal. The paragraph suggests that the '/'
will be considered part of the file name if a ':' appears later. (Your
point about POSIX compliance is still valid, though.)
--- inclusion end
*******
* defer
*******
libc/stdio/perror.c:
use BSDish implementation for perror(3) to avoid stdio.
libc/sys/syscall.c:
for unlink, if file is open, then register a call to unlink
(non-recursive) the file via atexit(3)
libc/sys/trap.asm:
Insert conchecks in trap functions to check to see if GNO
is active and at the right version level. If not, they
should abort.
libc/gen/environ.c:
Review routines. Force them to use GSString routines, reduce
stack usage (depend on dynamic allocation for parm blocks).