sh: Do not consider a tilde-prefix with expansions in it.
That is, do not do tilde expansion if any of the CTL* bytes (\201-\210), not only CTLESC and CTLQUOTEMARK, are encountered. Such an expansion would look up a user name with sh's internal representation. The parser does not currently distinguish between backslashed and unbackslashed \201-\210, so tilde expansion of user names with these bytes in them is not so easy to fix.
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=200988
@ -271,8 +271,13 @@ exptilde(char *p, int flag)
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while ((c = *p) != '\0') {
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switch(c) {
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case CTLESC:
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return (startp);
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case CTLESC: /* This means CTL* are always considered quoted. */
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case CTLVAR:
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case CTLENDVAR:
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case CTLBACKQ:
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case CTLBACKQ | CTLQUOTE:
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case CTLARI:
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case CTLENDARI:
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case CTLQUOTEMARK:
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return (startp);
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case ':':
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