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cgit.c: Do not restore unset environment variables
getenv() returns a NULL pointer if the specified variable name cannot be
found in the environment. However, some setenv() implementations crash
if a NULL pointer is passed as second argument. Only restore variables
that are not NULL.
See commit d96d2c98ebc4c2d3765f5b35c4142e0e828a421b for a related patch.
Signed-off-by: Lukas Fleischer <[email protected]>
| -rw-r--r-- | cgit.c | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -486,8 +486,10 @@ static int prepare_repo_cmd(struct cgit_context *ctx) init_display_notes(NULL); /* We restore the unset variables afterward. */ - setenv("HOME", user_home, 1); - setenv("XDG_CONFIG_HOME", xdg_home, 1); + if (user_home) + setenv("HOME", user_home, 1); + if (xdg_home) + setenv("XDG_CONFIG_HOME", xdg_home, 1); if (nongit) { const char *name = ctx->repo->name; |