Messages in this thread | | | From | (H. Peter Anvin) | Subject | Re: High UID support for Linux | Date | 1 Dec 1998 17:26:15 GMT |
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Followup to: <5liufwy8bs.fsf@tequila.cs.yale.edu> By author: Stefan Monnier <monnier+lists/linux/kernel/news/@tequila.cs.yale.edu> In newsgroup: linux.dev.kernel > > > Incidentally, remember that not all programs will load registers in > > the same order, and that the arguments pushed on the stack are not > > necessarily done consecutively... > > And since the problem is to replace getpwent with getenv(HOME), you have to > recognize that the output of getpwent is only used to extract the home > directory and then patch it up correctly. So much trouble, so little gain. >
It's also important to recognize that using getpwent to extract one's own home directory is *WRONG*. HOME and USER may point to a different place/user than getuid() and getpwuid(getuid()) will give you; this is quite common for setuid programs and when using su -m.
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