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vim-patch:8.0.0357: crash when setting 'guicursor' to weird value (#8161)

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Problem:    Crash when setting 'guicursor' to weird value.
Solution:   Avoid negative size. (Dominique Pelle, closes vim/vim#1465)
24922ec233
This commit is contained in:
KunMing Xie
2018-03-22 14:34:42 +08:00
committed by Justin M. Keyes
parent 535bf89597
commit ce3bc12e25
2 changed files with 15 additions and 5 deletions
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11
src/nvim/cursor_shape.c
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@@ -102,12 +102,15 @@ char_u *parse_shape_opt(int what)
}
while (*modep != NUL) {
colonp = vim_strchr(modep, ':');
if (colonp == NULL)
return (char_u *)N_("E545: Missing colon");
if (colonp == modep)
return (char_u *)N_("E546: Illegal mode");
commap = vim_strchr(modep, ',');
if (colonp == NULL || (commap != NULL && commap < colonp)) {
return (char_u *)N_("E545: Missing colon");
}
if (colonp == modep) {
return (char_u *)N_("E546: Illegal mode");
}
// Repeat for all modes before the colon.
// For the 'a' mode, we loop to handle all the modes.
all_idx = -1;