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mkstemp uses mktemp, which is only declared
when including files with _BSD_SOURCE, so
define _BSD_SOURCE before including the headers
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The new rc's exit status will be '' for a successfull
pipeline execution instead of '|'.
This is a bit too tightly coupled, so just use if()
statement instead, handling this in a portable way.
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Use O_EXCL and make the file descriptor writeable. This is more
usefull and it conforms to Single Unix and other specs.
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We removed the wrong file. Put it back.
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Apply changeset 2880:cab2b9d13a73 to ape's fmod() implementation.
Remove the unused math/fmod.c copy.
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When _startbuf is invoked, it would crash on the second invocation
if creating a mux segment failed. This is because the first attempt
would assign the return value -1 to the global mux variable, and
the second attempt would notice that the global mux was not nil,
and would attempt to use it.
This change only assigns to the global variable if the allocation
of the segment was a success.
While we're here, we should also check the return of the rfork call.
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The devcons driver is really the wrong place to
serve per process information.
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Using strlen in strndup will walk past the first
n bytes up to the terminator, which may not be
present. This is not what we want.
While we're here, do some cleanups.
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strndup is part of POSIX.1, so APE should provide it.
This patch adds it, so need to patch it out of fewer
programs going forward.
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Our ctype.h mistakenly ommitted isblank. Add it in.
While we're here, the make the 'isfoo()' functions
are broken: they're offsetting into the array, and
don't work with negative character values.
Sync the function bodies with the macros, and make
them produce correct results.
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This got broken in d8e877a89dae, where we returned 0 on the
first mismatch; we want to return 0 only when we consumed no
characters.
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We're missing type flags for:
hh: char
ll: vlong
z: size_t
t: ptrdiff_t
j: intmax_t
The lack of '%lld' was causing us to fail when parsing
timezone files. This brings us in line with the specifiers
in the C99 standard, section 7.19.6.2p11
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When a match() fails, we need to unget the character we
tried to match against, rather than leaving it consumed.
Also, we can't break out of a conversion before we reach
the end of a format string, because things like the '%n'
conversion do not consume anything, and should still be
handled.
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We used to have a padding int in the structure
after the next pointer, to align it to 16 bytes.
On 64 bit architectures, the pointer was already
8 bits, so the padding misaligned things to 20
bytes.
This fixes it so that we're explcit about the
data alignment we want, instead of hoping that
the various sizes line up.
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It's been 20 years since c99 came out. By now, if code
hasn't been fixed, it's not going to be. Requiring this
define just confuses porters.
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q
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cases
handle empty filename, dot and dotdot. handle mismatching from/to directory/file
type. cleanup destination file on error. error when attempting to copy non-empty
directories.
little test program:
#include <unistd.h>
#include <stdio.h>
int
main(int argc, char *argv[])
{
if(argc != 3){
fprintf(stderr, "usage: %s old new\n", argv[0]);
return 1;
}
if(rename(argv[1], argv[2])){
perror("rename");
return 1;
}
return 0;
}
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new implementation gets stuck in a infinite loop. backing
this out for now.
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For ape, we never enabled warnings in cflags.
Turning it on brings up a lot of warnings. Most are noise,
but a few caught unused variables and trunctaions of pointers.
to smaller integers (int, long).
A few warnings remain.
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just a first approximation, uses unaligned 8 byte loads and stores.
MOVP not yet implemented by the linker. no ZVA cache magic yet.
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the QLp structure used to occupy 24 bytes on amd64.
with some rearranging the fields we can get it to 16 bytes,
saving 8K in the data section for the 1024 preallocated
structs in the ql arena.
the rest of the changes are of cosmetic nature:
- getqlp() zeros the next pointer, so there is no need to set
it when queueing the entry.
- always explicitely compare pointers to nil.
- delete unused code from ape's qlock.c
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handling (thanks porlock)
theres a bug is in sclose() where it doesnt check if wp is beyond
the buffer. also wp was not updated after realloc().
bug was reported by porlock on 9fans:
Plan 9's implementation of the standard C functions snprintf and
vsnprintf have a buffer overrun bug.
If the buffer length equals the output length (without the terminating
null), then one too many characters is written to the buffer.
For example,
snprintf(buf, 4, "ABCD");
will write 5 characters to buf.
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when _syserrno() fails to map a plan9 error string to
a unix error number, we copy the plan9 error string
to the per process error buffer "plan9err" and set
errno = EPLAN9.
when strerror() is called with EPLAN9, it returns
a pointer to the plan9err buffer.
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on 32 bit archs, implement 64 bit vasop with floatingpoint right hand side.
also added is uvlong->double conversion function.
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