bandb: sqlite3: check read() return value
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08006c16f8
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20b940a99c
1 changed files with 7 additions and 6 deletions
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@ -23422,8 +23422,14 @@ unixRandomness(sqlite3_vfs * pVfs, int nBuf, char *zBuf)
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#if !defined(SQLITE_TEST)
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{
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int pid, fd;
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int len = 0;
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fd = open("/dev/urandom", O_RDONLY);
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if(fd < 0)
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if(fd >= 0)
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{
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len = read(fd, zBuf, nBuf);
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close(fd);
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}
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if(len < nBuf)
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{
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time_t t;
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time(&t);
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@ -23431,11 +23437,6 @@ unixRandomness(sqlite3_vfs * pVfs, int nBuf, char *zBuf)
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pid = getpid();
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memcpy(&zBuf[sizeof(t)], &pid, sizeof(pid));
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}
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else
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{
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read(fd, zBuf, nBuf);
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close(fd);
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}
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}
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#endif
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return SQLITE_OK;
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