Mercurial > vim
view src/os_qnx.c @ 34074:1629cc65d78d v9.1.0006
patch 9.1.0006: is*() and to*() function may be unsafe
Commit: https://github.com/vim/vim/commit/184f71cc6868a240dc872ed2852542bbc1d43e28
Author: Keith Thompson <Keith.S.Thompson@gmail.com>
Date: Thu Jan 4 21:19:04 2024 +0100
patch 9.1.0006: is*() and to*() function may be unsafe
Problem: is*() and to*() function may be unsafe
Solution: Add SAFE_* macros and start using those instead
(Keith Thompson)
Use SAFE_() macros for is*() and to*() functions
The standard is*() and to*() functions declared in <ctype.h> have
undefined behavior for negative arguments other than EOF. If plain char
is signed, passing an unchecked value from argv for from user input
to one of these functions has undefined behavior.
Solution: Add SAFE_*() macros that cast the argument to unsigned char.
Most implementations behave sanely for negative arguments, and most
character values in practice are non-negative, but it's still best
to avoid undefined behavior.
The change from #13347 has been omitted, as this has already been
separately fixed in commit ac709e2fc0db6d31abb7da96f743c40956b60c3a
(v9.0.2054)
fixes: #13332
closes: #13347
Signed-off-by: Keith Thompson <Keith.S.Thompson@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 04 Jan 2024 21:30:04 +0100 |
parents | 97255d909654 |
children |
line wrap: on
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/* vi:set ts=8 sts=4 sw=4 noet: * * VIM - Vi IMproved by Bram Moolenaar * * QNX port by Julian Kinraid * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. */ /* * os_qnx.c */ #include "vim.h" #if defined(FEAT_GUI_PHOTON) int is_photon_available; #endif void qnx_init(void) { #if defined(FEAT_GUI_PHOTON) PhChannelParms_t parms; CLEAR_FIELD(parms); parms.flags = Ph_DYNAMIC_BUFFER; is_photon_available = (PhAttach(NULL, &parms) != NULL) ? TRUE : FALSE; #endif } #if (defined(FEAT_GUI_PHOTON) && defined(FEAT_CLIPBOARD)) || defined(PROTO) #define CLIP_TYPE_VIM "VIMTYPE" #define CLIP_TYPE_TEXT "TEXT" // Turn on the clipboard for a console vim when photon is running void qnx_clip_init(void) { if (is_photon_available == TRUE && !gui.in_use) clip_init(TRUE); } ///////////////////////////////////////////////////////////////////////////// // Clipboard // No support for owning the clipboard int clip_mch_own_selection(Clipboard_T *cbd) { return FALSE; } void clip_mch_lose_selection(Clipboard_T *cbd) { } void clip_mch_request_selection(Clipboard_T *cbd) { int type = MLINE, clip_length = 0, is_type_set = FALSE; void *cbdata; PhClipHeader *clip_header; char_u *clip_text = NULL; cbdata = PhClipboardPasteStart(PhInputGroup(NULL)); if (cbdata == NULL) return; // Look for the vim specific clip first clip_header = PhClipboardPasteType(cbdata, CLIP_TYPE_VIM); if (clip_header != NULL && clip_header->data != NULL) { switch(*(char *) clip_header->data) { default: // fallthrough to line type case 'L': type = MLINE; break; case 'C': type = MCHAR; break; case 'B': type = MBLOCK; break; } is_type_set = TRUE; } // Try for just normal text clip_header = PhClipboardPasteType(cbdata, CLIP_TYPE_TEXT); if (clip_header != NULL) { clip_text = clip_header->data; clip_length = clip_header->length - 1; if (clip_text != NULL && is_type_set == FALSE) type = MAUTO; } if ((clip_text != NULL) && (clip_length > 0)) clip_yank_selection(type, clip_text, clip_length, cbd); PhClipboardPasteFinish(cbdata); } void clip_mch_set_selection(Clipboard_T *cbd) { int type; long_u len; char_u *text_clip, vim_clip[2], *str = NULL; PhClipHeader clip_header[2]; // Prevent recursion from clip_get_selection() if (cbd->owned == TRUE) return; cbd->owned = TRUE; clip_get_selection(cbd); cbd->owned = FALSE; type = clip_convert_selection(&str, &len, cbd); if (type >= 0) { text_clip = alloc(len + 1); // Normal text if (text_clip && vim_clip) { CLEAR_FIELD(clip_header); STRNCPY(clip_header[0].type, CLIP_TYPE_VIM, 8); clip_header[0].length = sizeof(vim_clip); clip_header[0].data = vim_clip; STRNCPY(clip_header[1].type, CLIP_TYPE_TEXT, 8); clip_header[1].length = len + 1; clip_header[1].data = text_clip; switch(type) { default: // fallthrough to MLINE case MLINE: *vim_clip = 'L'; break; case MCHAR: *vim_clip = 'C'; break; case MBLOCK: *vim_clip = 'B'; break; } vim_strncpy(text_clip, str, len); vim_clip[ 1 ] = NUL; PhClipboardCopy(PhInputGroup(NULL), 2, clip_header); } vim_free(text_clip); } vim_free(str); } #endif