[bugs] [illumos gate - Bug #1224] (In Progress) lp may overwrite constant data

[illumos bugs]

Issue #1224 has been reported by Rich Lowe.

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Bug #1224: lp may overwrite constant data
https://www.illumos.org/issues/1224

Author: Rich Lowe
Status: In Progress
Priority: Normal
Assignee: Rich Lowe
Category: cmd - userland programs
Target version: 
Difficulty: Medium
Tags: 


If built with -xstrconst or with gcc without -fwritable-strings lp will overwrite constant strings when:

1. Checking the terminfo database (type_letter in _isterminfo)
2. In numerous places while forming argument error messages
3. ... in countless places other places as yet undiscovered (yech!)

This bug covers #1 and #2.  People playing along at home may wish to grep cmd/lp for any string constant assigned to char* and considering each of them deeply suspicious (though I suspect even a pass that thorough will miss the more insidious bits of this pile).



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