mirror of https://github.com/hak5/openwrt.git
137 lines
4.3 KiB
Diff
137 lines
4.3 KiB
Diff
--- a/editors/vi.c
|
|
+++ b/editors/vi.c
|
|
@@ -147,10 +147,10 @@
|
|
#endif
|
|
|
|
smallint editing; // >0 while we are editing a file
|
|
- // [code audit says "can be 0 or 1 only"]
|
|
+ // [code audit says "can be 0, 1 or 2 only"]
|
|
smallint cmd_mode; // 0=command 1=insert 2=replace
|
|
int file_modified; // buffer contents changed (counter, not flag!)
|
|
- int last_file_modified; // = -1;
|
|
+ int last_file_modified; // = -1;
|
|
int fn_start; // index of first cmd line file name
|
|
int save_argc; // how many file names on cmd line
|
|
int cmdcnt; // repetition count
|
|
@@ -623,7 +623,7 @@
|
|
// These are commands that change text[].
|
|
// Remember the input for the "." command
|
|
if (!adding2q && ioq_start == NULL
|
|
- && strchr(modifying_cmds, c)
|
|
+ && c != '\0' && strchr(modifying_cmds, c)
|
|
) {
|
|
start_new_cmd_q(c);
|
|
}
|
|
@@ -645,8 +645,8 @@
|
|
}
|
|
//-------------------------------------------------------------------
|
|
|
|
- place_cursor(rows, 0, FALSE); // go to bottom of screen
|
|
- clear_to_eol(); // Erase to end of line
|
|
+ place_cursor(rows - 1, 0, FALSE); // go to bottom of screen
|
|
+ clear_to_eol(); // erase to end of line
|
|
cookmode();
|
|
#undef cur_line
|
|
}
|
|
@@ -2009,9 +2009,9 @@
|
|
{
|
|
// get buffer for new cmd
|
|
// if there is a current cmd count put it in the buffer first
|
|
- if (cmdcnt > 0)
|
|
+ if (cmdcnt > 0) {
|
|
lmc_len = sprintf(last_modifying_cmd, "%d%c", cmdcnt, c);
|
|
- else { // just save char c onto queue
|
|
+ } else { // just save char c onto queue
|
|
last_modifying_cmd[0] = c;
|
|
lmc_len = 1;
|
|
}
|
|
@@ -2247,18 +2247,20 @@
|
|
|
|
fflush(stdout);
|
|
n = chars_to_parse;
|
|
- // get input from User- are there already input chars in Q?
|
|
+ // get input from User - are there already input chars in Q?
|
|
if (n <= 0) {
|
|
// the Q is empty, wait for a typed char
|
|
+ again:
|
|
n = safe_read(STDIN_FILENO, readbuffer, sizeof(readbuffer));
|
|
- if (n < 0) {
|
|
- if (errno == EBADF || errno == EFAULT || errno == EINVAL
|
|
- || errno == EIO)
|
|
- editing = 0; // want to exit
|
|
- errno = 0;
|
|
- }
|
|
- if (n <= 0)
|
|
- return 0; // error
|
|
+ if (n <= 0) {
|
|
+ place_cursor(rows - 1, 0, FALSE); // go to bottom of screen
|
|
+ clear_to_eol(); // erase to end of line
|
|
+ cookmode(); // terminal to "cooked"
|
|
+ bb_error_msg_and_die("can't read user input");
|
|
+ }
|
|
+ /* elsewhere we can get very confused by NULs */
|
|
+ if (readbuffer[0] == '\0')
|
|
+ goto again;
|
|
if (readbuffer[0] == 27) {
|
|
// This is an ESC char. Is this Esc sequence?
|
|
// Could be bare Esc key. See if there are any
|
|
--- a/miscutils/crontab.c
|
|
+++ b/miscutils/crontab.c
|
|
@@ -93,6 +93,7 @@
|
|
char *new_fname;
|
|
char *user_name; /* -u USER */
|
|
int fd;
|
|
+ int src_fd;
|
|
int opt_ler;
|
|
|
|
/* file [opts] Replace crontab from file
|
|
@@ -144,15 +145,15 @@
|
|
bb_show_usage();
|
|
|
|
/* Read replacement file under user's UID/GID/group vector */
|
|
+ src_fd = STDIN_FILENO;
|
|
if (!opt_ler) { /* Replace? */
|
|
if (!argv[0])
|
|
bb_show_usage();
|
|
if (NOT_LONE_DASH(argv[0])) {
|
|
- fd = open_as_user(pas, argv[0]);
|
|
- if (fd < 0)
|
|
+ src_fd = open_as_user(pas, argv[0]);
|
|
+ if (src_fd < 0)
|
|
bb_error_msg_and_die("user %s cannot read %s",
|
|
pas->pw_name, argv[0]);
|
|
- xmove_fd(fd, STDIN_FILENO);
|
|
}
|
|
}
|
|
|
|
@@ -180,23 +181,23 @@
|
|
tmp_fname = xasprintf("%s.%u", crontab_dir, (unsigned)getpid());
|
|
/* No O_EXCL: we don't want to be stuck if earlier crontabs
|
|
* were killed, leaving stale temp file behind */
|
|
- fd = xopen3(tmp_fname, O_RDWR|O_CREAT|O_TRUNC, 0600);
|
|
- xmove_fd(fd, STDIN_FILENO);
|
|
- fchown(STDIN_FILENO, pas->pw_uid, pas->pw_gid);
|
|
+ src_fd = xopen3(tmp_fname, O_RDWR|O_CREAT|O_TRUNC, 0600);
|
|
+ fchown(src_fd, pas->pw_uid, pas->pw_gid);
|
|
fd = open(pas->pw_name, O_RDONLY);
|
|
if (fd >= 0) {
|
|
- bb_copyfd_eof(fd, STDIN_FILENO);
|
|
+ bb_copyfd_eof(fd, src_fd);
|
|
close(fd);
|
|
+ xlseek(src_fd, 0, SEEK_SET);
|
|
}
|
|
+ close_on_exec_on(src_fd); /* don't want editor to see this fd */
|
|
edit_file(pas, tmp_fname);
|
|
- xlseek(STDIN_FILENO, 0, SEEK_SET);
|
|
/* fall through */
|
|
|
|
case 0: /* Replace (no -l, -e, or -r were given) */
|
|
new_fname = xasprintf("%s.new", pas->pw_name);
|
|
fd = open(new_fname, O_WRONLY|O_CREAT|O_TRUNC|O_APPEND, 0600);
|
|
if (fd >= 0) {
|
|
- bb_copyfd_eof(STDIN_FILENO, fd);
|
|
+ bb_copyfd_eof(src_fd, fd);
|
|
close(fd);
|
|
xrename(new_fname, pas->pw_name);
|
|
} else {
|