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fix die() on too fast scroll input - scroll - scrollbackbuffer program for st |
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git clone git://git.suckless.org/scroll |
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commit 47f9a83aaf2304291c6b7b8812747f482f609902 |
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parent 200c1a92277ddc3daf0cde1f4957090f5887b423 |
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Author: Jan Klemkow <[email protected]> |
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Date: Mon, 20 Apr 2020 22:59:50 +0200 |
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fix die() on too fast scroll input |
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Diffstat: |
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M scroll.c | 11 +++++------ |
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1 file changed, 5 insertions(+), 6 deletions(-) |
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--- |
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diff --git a/scroll.c b/scroll.c |
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@@ -226,12 +226,11 @@ getcursorposition(int *x, int *y) |
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if (write(STDOUT_FILENO, "\033[6n", 4) < 0) |
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die("requesting cursor position"); |
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- if ((n = read(STDIN_FILENO, input, sizeof(input)-1)) < 0) |
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- die("reading cursor position"); |
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- input[n] = '\0'; |
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- |
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- if (sscanf(input, "\033[%d;%dR", x, y) != 2) |
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- die("parsing cursor position: %s", input); |
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+ do { |
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+ if ((n = read(STDIN_FILENO, input, sizeof(input)-1)) < 0) |
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+ die("reading cursor position"); |
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+ input[n] = '\0'; |
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+ } while (sscanf(input, "\033[%d;%dR", x, y) != 2); |
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if (x <= 0 || y <= 0) |
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die("invalid cursor position: x=%d y=%d", x, y); |
