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config: fix check for environment string expansion

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If ExpandEnvironmentStringsW is successful, it returns the amount of
characters written, including the NUL terminator.

Thanks to Emeric for reading the MSDN documentation correctly.

Signed-off-by: Carlos Martín Nieto <carlos@cmartin.tk>
This commit is contained in:
Carlos Martín Nieto 2011-09-30 15:43:58 +02:00
parent 550c9f31bb
commit 358a15fd65
1 changed files with 1 additions and 1 deletions
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src/config.c
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@ -352,7 +352,7 @@ static int win32_find_system(char *system_config_path)
return GIT_ENOMEM; return GIT_ENOMEM;
ret = ExpandEnvironmentStringsW(query, apphome_utf16, size); ret = ExpandEnvironmentStringsW(query, apphome_utf16, size);
if (ret == 0 || ret >= size) if (ret != size)
return git__throw(GIT_ERROR, "Failed to expand environment strings"); return git__throw(GIT_ERROR, "Failed to expand environment strings");
if (_waccess(apphome_utf16, F_OK) < 0) { if (_waccess(apphome_utf16, F_OK) < 0) {