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patch 9.0.0113: has() is not strict about parsing the patch version

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Problem:    has() is not strict about parsing the patch version.
Solution:   Check the version more strictly. (Ken Takata, closes #10752)
This commit is contained in:
K.Takata
2022-07-30 15:43:59 +01:00
committed by Bram Moolenaar
parent 0f823c3609
commit d90f91fe30
3 changed files with 29 additions and 11 deletions
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29
src/evalfunc.c
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@@ -6458,19 +6458,26 @@ f_has(typval_T *argvars, typval_T *rettv)
x = TRUE;
if (name[5] == '-'
&& STRLEN(name) >= 11
&& vim_isdigit(name[6])
&& vim_isdigit(name[8])
&& vim_isdigit(name[10]))
&& (name[6] >= '1' && name[6] <= '9'))
{
int major = atoi((char *)name + 6);
int minor = atoi((char *)name + 8);
char *end;
int major, minor;
// Expect "patch-9.9.01234".
n = (major < VIM_VERSION_MAJOR
|| (major == VIM_VERSION_MAJOR
&& (minor < VIM_VERSION_MINOR
|| (minor == VIM_VERSION_MINOR
&& has_patch(atoi((char *)name + 10))))));
// This works for patch-8.1.2, patch-9.0.3, patch-10.0.4, etc.
// Not for patch-9.10.5.
major = (int)strtoul((char *)name + 6, &end, 10);
if (*end == '.' && vim_isdigit(end[1])
&& end[2] == '.' && vim_isdigit(end[3]))
{
minor = atoi(end + 1);
// Expect "patch-9.9.01234".
n = (major < VIM_VERSION_MAJOR
|| (major == VIM_VERSION_MAJOR
&& (minor < VIM_VERSION_MINOR
|| (minor == VIM_VERSION_MINOR
&& has_patch(atoi(end + 3))))));
}
}
else if (isdigit(name[5]))
n = has_patch(atoi((char *)name + 5));