Vincent Sanders
1be4c6e9cf
LibC: Stop stdio from adding null terminators out of bounds ( #685 )
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When using the bounded string operations (e.g. snprintf), the null
terminator was always being written even if there was no space for
it (or indeed any valid buffer at all)
This overwriting caused segmentation faults and memory corruption
2019-10-24 14:12:37 +02:00
Andreas Kling
14f0a5943b
LibC: Have perror() show the input string on the debugger as well
2019-10-12 14:47:06 +02:00
Andreas Kling
676af444ca
LibC: Clear any ungetc()'ed data in fflush()
2019-09-27 10:15:42 +02:00
Andreas Kling
edac8704de
LibC: Fix dumb off-by-two in fgets() :^)
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"Play C games, win C prizes."
2019-09-22 20:03:02 +02:00
Andreas Kling
64948fa701
LibC: ungetc(EOF) should fail (and return EOF)
2019-09-22 19:51:39 +02:00
Andreas Kling
804df54296
LibC: Let's assert in rewind() that fseek()ing to the beginning worked
2019-09-22 19:41:21 +02:00
Andreas Kling
8b0d530584
LibC: fgets() shouldn't stop on '\0'
2019-09-11 23:01:55 +02:00
Andreas Kling
ada1f504fd
LibC: Make sure perror() is consistent about the errno it prints
2019-09-10 19:35:51 +02:00
Andreas Kling
6cd9c020ea
LibC: Write to the dbg() every time we perror() in userspace
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There's a high chance that we're interested in whatever errors come out
of perror(), so let's output those on the debugger as well.
2019-08-19 17:25:49 +02:00
Andreas Kling
bd08664f05
LibC: In fgetc(), fread() will never return < 0.
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Furthermore, fread() has already handled EOF, so there's no need to do
it again. If we read a character, return it, otherwise return EOF.
Note that EOF means "EOF or error" here.
2019-08-01 10:50:51 +02:00
Andreas Kling
9fb2a65716
AK: Rename ValueRestorer => ScopedValueRollback.
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Qt had a pretty good name for this concept, so let's steal it. :^)
2019-07-25 15:15:46 +02:00
Andreas Kling
af81645a2a
Kernel+LibC: Add a dbgputstr() syscall for sending strings to debug output.
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This is very handy for the DebugLogStream implementation, among others. :^)
2019-07-21 21:43:37 +02:00
Andreas Kling
3fce2fb205
Kernel+LibC: Add a dbgputch() syscall and use it for userspace dbgprintf().
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The "stddbg" stream was a cute idea but we never ended up using it in
practice, so let's simplify this and implement userspace dbgprintf() on top
of a simple dbgputch() syscall instead.
This makes debugging LibC startup a little bit easier. :^)
2019-07-21 19:45:31 +02:00
Andreas Kling
04b9dc2d30
Libraries: Create top level directory for libraries.
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Things were getting a little crowded in the project root, so this patch
moves the Lib*/ directories into Libraries/.
2019-07-04 16:16:50 +02:00
