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vi: do not truncate file to zero length. closes bug 2944.
function old new delta file_write 98 104 +6
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@ -2437,11 +2437,16 @@ static int file_write(char * fn, char * first, char * last)
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return -2;
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}
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charcnt = 0;
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fd = open(fn, (O_WRONLY | O_CREAT | O_TRUNC), 0666);
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/* By popular request we do not open file with O_TRUNC,
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* but instead ftruncate() it _after_ successful write.
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* Might reduce amount of data lost on power fail etc.
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*/
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fd = open(fn, (O_WRONLY | O_CREAT), 0666);
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if (fd < 0)
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return -1;
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cnt = last - first + 1;
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charcnt = full_write(fd, first, cnt);
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ftruncate(fd, charcnt);
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if (charcnt == cnt) {
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// good write
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//file_modified = FALSE; // the file has not been modified
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