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fileops: fix leaking fd in mmap_ro_file

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When the `git_futils_mmap_ro_file` function encounters an error after
the file has been opened, it will do a simple returns. Instead, we
should close the opened file descriptor to avoid a leak. This commit
fixes the issue.
This commit is contained in:
Patrick Steinhardt 2017-04-12 08:09:08 +02:00
parent e572b63121
commit 38b6e70027
1 changed files with 7 additions and 3 deletions
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10
src/fileops.c
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@ -304,15 +304,19 @@ int git_futils_mmap_ro_file(git_map *out, const char *path)
if (fd < 0)
return fd;
if ((len = git_futils_filesize(fd)) < 0)
return -1;
if ((len = git_futils_filesize(fd)) < 0) {
result = -1;
goto out;
}
if (!git__is_sizet(len)) {
giterr_set(GITERR_OS, "file `%s` too large to mmap", path);
return -1;
result = -1;
goto out;
}
result = git_futils_mmap_ro(out, fd, 0, (size_t)len);
out:
p_close(fd);
return result;
}