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Support systems that only have utmpx

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This allows shadow-utils to build on systems like Adélie, which have no
<utmp.h> header or `struct utmp`.  We use a <utmpx.h>-based daemon,
utmps[1], which uses `struct utmpx` only.

Tested both `login` and `logoutd` with utmps and both work correctly.

[1]: http://skarnet.org/software/utmps/
This commit is contained in:
A. Wilcox
2018-06-24 00:13:12 -05:00
parent 67ec1a5266
commit 99dbd4b9ee
4 changed files with 62 additions and 19 deletions
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6
lib/prototypes.h
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@@ -416,17 +416,19 @@ extern int set_filesize_limit (int blocks);
extern int user_busy (const char *name, uid_t uid);
/* utmp.c */
#ifndef USE_UTMPX
extern /*@null@*/struct utmp *get_current_utmp (void);
extern struct utmp *prepare_utmp (const char *name,
const char *line,
const char *host,
/*@null@*/const struct utmp *ut);
extern int setutmp (struct utmp *ut);
#ifdef USE_UTMPX
#else
extern /*@null@*/struct utmpx *get_current_utmp (void);
extern struct utmpx *prepare_utmpx (const char *name,
const char *line,
const char *host,
/*@null@*/const struct utmp *ut);
/*@null@*/const struct utmpx *ut);
extern int setutmpx (struct utmpx *utx);
#endif /* USE_UTMPX */