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xcursor: check that XDG base directory path is absolute

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The spec reads:

> All paths set in these environment variables must be absolute. If an
> implementation encounters a relative path in any of these variables it should
> consider the path invalid and ignore it.

and

> If $XDG_DATA_HOME is either not set or empty, a default equal to
> $HOME/.local/share should be used.

Testing that the path is absolute also entails that is is non-empty.
This commit is contained in:
Antonin Décimo 2022-03-13 20:50:03 +01:00 committed by Simon Ser
parent 48c811ffb6
commit 95d3529edf
1 changed files with 1 additions and 1 deletions
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xcursor/xcursor.c
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@ -647,7 +647,7 @@ XcursorLibraryPath (void)
} }
else { else {
env_var = getenv("XDG_DATA_HOME"); env_var = getenv("XDG_DATA_HOME");
if (env_var) { if (env_var && env_var[0] == '/') {
pathlen = strlen(env_var) + pathlen = strlen(env_var) +
strlen(CURSORDIR ":" XCURSORPATH) + 1; strlen(CURSORDIR ":" XCURSORPATH) + 1;
path = malloc(pathlen); path = malloc(pathlen);