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Use fseeko() for legacy utmp handling if available.

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This commit is contained in:
Todd C. Miller
2012-08-29 10:32:49 -04:00
parent f44afdc423
commit 71e2d8290b
4 changed files with 23 additions and 0 deletions
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8
src/utmp.c
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@@ -328,7 +328,11 @@ utmp_login(const char *from_line, const char *to_line, int ttyfd,
}
}
utmp_fill(to_line, user, ut_old, &utbuf);
#ifdef HAVE_FSEEKO
if (fseeko(fp, slot * (off_t)sizeof(utbuf), SEEK_SET) == 0) {
#else
if (fseek(fp, slot * (long)sizeof(utbuf), SEEK_SET) == 0) {
#endif
if (fwrite(&utbuf, sizeof(utbuf), 1, fp) == 1)
rval = true;
}
@@ -361,7 +365,11 @@ utmp_logout(const char *line, int status)
# endif
utmp_settime(&utbuf);
/* Back up and overwrite record. */
#ifdef HAVE_FSEEKO
if (fseeko(fp, (off_t)0 - (off_t)sizeof(utbuf), SEEK_CUR) == 0) {
#else
if (fseek(fp, 0L - (long)sizeof(utbuf), SEEK_CUR) == 0) {
#endif
if (fwrite(&utbuf, sizeof(utbuf), 1, fp) == 1)
rval = true;
}