view src/proto/os_unix.pro @ 33815:08f9e1eac4cf v9.0.2123

patch 9.0.2123: Problem with initializing the length of range() lists Commit: https://github.com/vim/vim/commit/df63da98d8dc284b1c76cfe1b17fa0acbd6094d8 Author: Christian Brabandt <cb@256bit.org> Date: Thu Nov 23 20:14:28 2023 +0100 patch 9.0.2123: Problem with initializing the length of range() lists Problem: Problem with initializing the length of range() lists Solution: Set length explicitly when it shouldn't contain any items range() may cause a wrong calculation of list length, which may later then cause a segfault in list_find(). This is usually not a problem, because range_list_materialize() calculates the length, when it materializes the list. In addition, in list_find() when the length of the range was wrongly initialized, it may seem to be valid, so the check for list index out-of-bounds will not be true, because it is called before the list is actually materialized. And so we may eventually try to access a null pointer, causing a segfault. So this patch does 3 things: - In f_range(), when we know that the list should be empty, explicitly set the list->lv_len value to zero. This should happen, when start is larger than end (in case the stride is positive) or end is larger than start when the stride is negative. This should fix the underlying issue properly. However, - as a safety measure, let's check that the requested index is not out of range one more time, after the list has been materialized and return NULL in case it suddenly is. - add a few more tests to verify the behaviour. fixes: #13557 closes: #13563 Co-authored-by: Tim Pope <tpope@github.com> Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Thu, 23 Nov 2023 20:30:07 +0100
parents dcfbfe57141c
children
line wrap: on
line source

/* os_unix.c */
sighandler_T mch_signal(int sig, sighandler_T func);
int mch_chdir(char *path);
void mch_write(char_u *s, int len);
int mch_inchar(char_u *buf, int maxlen, long wtime, int tb_change_cnt);
int mch_char_avail(void);
int mch_check_messages(void);
long_u mch_total_mem(int special);
void mch_delay(long msec, int flags);
int mch_stackcheck(char *p);
void mch_suspend(void);
void mch_init(void);
void reset_signals(void);
int vim_handle_signal(int sig);
int mch_check_win(int argc, char **argv);
int mch_input_isatty(void);
void ex_xrestore(exarg_T *eap);
int mch_can_restore_title(void);
int mch_can_restore_icon(void);
void mch_settitle(char_u *title, char_u *icon);
void mch_restore_title(int which);
int vim_is_xterm(char_u *name);
int use_xterm_like_mouse(char_u *name);
int use_xterm_mouse(void);
int vim_is_iris(char_u *name);
int vim_is_vt300(char_u *name);
int mch_get_user_name(char_u *s, int len);
int mch_get_uname(uid_t uid, char_u *s, int len);
void mch_get_host_name(char_u *s, int len);
long mch_get_pid(void);
int mch_process_running(long pid);
int mch_dirname(char_u *buf, int len);
int mch_FullName(char_u *fname, char_u *buf, int len, int force);
int mch_isFullName(char_u *fname);
void fname_case(char_u *name, int len);
long mch_getperm(char_u *name);
int mch_setperm(char_u *name, long perm);
int mch_fsetperm(int fd, long perm);
void mch_copy_sec(char_u *from_file, char_u *to_file);
void mch_copy_xattr(char_u *from_file, char_u *to_file);
vim_acl_T mch_get_acl(char_u *fname);
void mch_set_acl(char_u *fname, vim_acl_T aclent);
void mch_free_acl(vim_acl_T aclent);
void mch_hide(char_u *name);
int mch_isdir(char_u *name);
int mch_isrealdir(char_u *name);
int mch_can_exe(char_u *name, char_u **path, int use_path);
int mch_nodetype(char_u *name);
void mch_early_init(void);
void mch_free_mem(void);
void mch_exit(int r);
void mch_settmode(tmode_T tmode);
void get_stty(void);
int get_tty_info(int fd, ttyinfo_T *info);
void mch_setmouse(int on);
void mch_bevalterm_changed(void);
void check_mouse_termcode(void);
int mch_get_shellsize(void);
int mch_report_winsize(int fd, int rows, int cols);
void mch_set_shellsize(void);
void mch_new_shellsize(void);
int unix_build_argv(char_u *cmd, char ***argvp, char_u **sh_tofree, char_u **shcf_tofree);
int mch_call_shell(char_u *cmd, int options);
void mch_job_start(char **argv, job_T *job, jobopt_T *options, int is_terminal);
char *mch_job_status(job_T *job);
job_T *mch_detect_ended_job(job_T *job_list);
int mch_signal_job(job_T *job, char_u *how);
void mch_clear_job(job_T *job);
int mch_create_pty_channel(job_T *job, jobopt_T *options);
void mch_breakcheck(int force);
int mch_expandpath(garray_T *gap, char_u *path, int flags);
int mch_expand_wildcards(int num_pat, char_u **pat, int *num_file, char_u ***file, int flags);
int mch_has_exp_wildcard(char_u *p);
int mch_has_wildcard(char_u *p);
int mch_rename(const char *src, const char *dest);
int gpm_available(void);
int gpm_enabled(void);
int mch_libcall(char_u *libname, char_u *funcname, char_u *argstring, int argint, char_u **string_result, int *number_result);
void setup_term_clip(void);
void start_xterm_trace(int button);
void stop_xterm_trace(void);
void clear_xterm_clip(void);
int clip_xterm_own_selection(Clipboard_T *cbd);
void clip_xterm_lose_selection(Clipboard_T *cbd);
void clip_xterm_request_selection(Clipboard_T *cbd);
void clip_xterm_set_selection(Clipboard_T *cbd);
int xsmp_handle_requests(void);
void xsmp_init(void);
void xsmp_close(void);
void stop_timeout(void);
volatile sig_atomic_t *start_timeout(long msec);
void delete_timer(void);
/* vim: set ft=c : */