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Fix sh crash if show_state->current_line is NULL.

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This commit is contained in:
Jonas 'Sortie' Termansen 2016-10-22 23:52:56 +02:00
parent e808ddb62e
commit a77fb74fd9
1 changed files with 9 additions and 3 deletions
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12
sh/showline.c
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2011, 2012, 2013, 2014, 2015 Jonas 'Sortie' Termansen.
* Copyright (c) 2011, 2012, 2013, 2014, 2015, 2016 Jonas 'Sortie' Termansen.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@ -354,6 +354,12 @@ void show_line(struct show_line* show_state, const char* line, size_t cursor)
show_state->invalidated = false;
}
void show_line_end(struct show_line* show_state, const char* line)
{
size_t cursor = line ? strlen(line) : 0;
show_line(show_state, line, cursor);
}
void show_line_clear(struct show_line* show_state)
{
dprintf(show_state->out_fd, "\e[H\e[2J");
@ -362,7 +368,7 @@ void show_line_clear(struct show_line* show_state)
show_state->wcp_start.wcp_col = 0;
show_state->invalidated = true;
show_line(show_state, show_state->current_line, strlen(show_state->current_line));
show_line_end(show_state, show_state->current_line);
}
void show_line_abort(struct show_line* show_state)
@ -374,7 +380,7 @@ void show_line_abort(struct show_line* show_state)
void show_line_finish(struct show_line* show_state)
{
show_line(show_state, show_state->current_line, strlen(show_state->current_line));
show_line_end(show_state, show_state->current_line);
dprintf(show_state->out_fd, "\n");
show_line_abort(show_state);