awk(1): fix append operator to avoid truncating file
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8e9d2434e9
commit
913be4e74a
1 changed files with 10 additions and 4 deletions
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@ -1710,7 +1710,7 @@ void stdinit(void) /* in case stdin, etc., are not constants */
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Biobuf *openfile(int a, char *us)
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{
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char *s = us;
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int i, m;
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int i, m, fd;
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Biobuf *fp = nil;
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if (*s == '\0')
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@ -1735,9 +1735,15 @@ Biobuf *openfile(int a, char *us)
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if (a == GT) {
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fp = Bopen(s, OWRITE);
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} else if (a == APPEND) {
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fp = Bopen(s, OWRITE);
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Bseek(fp, 0LL, 2);
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m = GT; /* so can mix > and >> */
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fd = open(s, OWRITE);
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if (fd < 0)
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fd = create(s, OWRITE, 0666);
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if (fd >= 0) {
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fp = Bfdopen(fd, OWRITE);
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if (fp != nil)
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Bseek(fp, 0LL, 2);
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m = GT; /* so can mix > and >> */
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}
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} else if (a == '|') { /* output pipe */
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fp = popen(s, OWRITE);
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} else if (a == LE) { /* input pipe */
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