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@ -85,7 +85,7 @@ static int
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open_cache_file_without_tmpfile(const char *cache_path) {
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int fd = -1;
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static const char *template = "%s/disk-cache-XXXXXXXXXXXX";
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size_t sz = strlen(cache_path) + sizeof(template);
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const size_t sz = strlen(cache_path) + sizeof(template) + 4;
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FREE_AFTER_FUNCTION char *buf = calloc(1, sz);
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if (!buf) { errno = ENOMEM; return -1; }
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snprintf(buf, sz - 1, template, cache_path);
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