From: nekral-guest Date: Mon, 31 Dec 2007 14:15:29 +0000 (+0000) Subject: Avoid implicit conversions to booleans. X-Git-Tag: 4.1.1~208 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=c086f6c9314046e5a2005620423ea18783a475ce;p=shadow Avoid implicit conversions to booleans. --- diff --git a/ChangeLog b/ChangeLog index cd6dcb19..f0bf3ab9 100644 --- a/ChangeLog +++ b/ChangeLog @@ -8,6 +8,7 @@ pam API was already checked. No need to validate it again. * src/chfn.c: Avoid implicit brackets. * src/chfn.c: Document may_change_field(). + * src/chfn.c: Avoid implicit conversions to booleans. 2007-12-31 Nicolas François diff --git a/src/chfn.c b/src/chfn.c index 6380c217..6607cb09 100644 --- a/src/chfn.c +++ b/src/chfn.c @@ -141,7 +141,7 @@ static int may_change_field (int field) } cp = getdef_str ("CHFN_RESTRICT"); - if (!cp) { + if (NULL == cp) { cp = ""; } else if (strcmp (cp, "yes") == 0) { cp = "rwh"; @@ -149,7 +149,7 @@ static int may_change_field (int field) cp = "frwh"; } - if (strchr (cp, field)) { + if (strchr (cp, field) != NULL) { return 1; } @@ -209,17 +209,17 @@ static char *copy_field (char *in, char *out, char *extra) { char *cp = NULL; - while (in) { - if ((cp = strchr (in, ','))) { + while (NULL != in) { + if ((cp = strchr (in, ',')) != NULL) { *cp++ = '\0'; } - if (!strchr (in, '=')) { + if (strchr (in, '=') == NULL) { break; } - if (extra) { - if (extra[0]) { + if (NULL != extra) { + if ('\0' != extra[0]) { strcat (extra, ","); } @@ -227,7 +227,7 @@ static char *copy_field (char *in, char *out, char *extra) } in = cp; } - if (in && out) { + if ((NULL != in) && (NULL != out)) { strcpy (out, in); } @@ -403,7 +403,7 @@ static void update_gecos (const char *user, char *gecos) * against unexpected signals. Any keyboard signals are set to be * ignored. */ - if (setuid (0)) { + if (setuid (0) != 0) { fprintf (stderr, _("Cannot change ID to root.\n")); SYSLOG ((LOG_ERR, "can't setuid(0)")); closelog (); @@ -415,7 +415,7 @@ static void update_gecos (const char *user, char *gecos) * The passwd entry is now ready to be committed back to the * password file. Get a lock on the file and open it. */ - if (!pw_lock ()) { + if (pw_lock () == 0) { fprintf (stderr, _ ("Cannot lock the password file; try again later.\n")); @@ -423,7 +423,7 @@ static void update_gecos (const char *user, char *gecos) closelog (); exit (E_NOPERM); } - if (!pw_open (O_RDWR)) { + if (pw_open (O_RDWR) == 0) { fprintf (stderr, _("Cannot open the password file.\n")); pw_unlock (); SYSLOG ((LOG_ERR, "can't open /etc/passwd")); @@ -438,7 +438,7 @@ static void update_gecos (const char *user, char *gecos) * AUTOSHADOW (or SHADOW_COMPAT in libc). --marekm */ pw = pw_locate (user); - if (!pw) { + if (NULL == pw) { pw_unlock (); fprintf (stderr, _("%s: %s not found in /etc/passwd\n"), Prog, user); @@ -456,7 +456,7 @@ static void update_gecos (const char *user, char *gecos) * Update the passwd file entry. If there is a DBM file, update that * entry as well. */ - if (!pw_update (&pwent)) { + if (pw_update (&pwent) == 0) { fprintf (stderr, _("Error updating the password entry.\n")); pw_unlock (); SYSLOG ((LOG_ERR, "error updating passwd entry")); @@ -467,14 +467,14 @@ static void update_gecos (const char *user, char *gecos) /* * Changes have all been made, so commit them and unlock the file. */ - if (!pw_close ()) { + if (pw_close () == 0) { fprintf (stderr, _("Cannot commit password file changes.\n")); pw_unlock (); SYSLOG ((LOG_ERR, "can't rewrite /etc/passwd")); closelog (); exit (E_NOPERM); } - if (!pw_unlock ()) { + if (pw_unlock () == 0) { fprintf (stderr, _("Cannot unlock the password file.\n")); SYSLOG ((LOG_ERR, "can't unlock /etc/passwd")); closelog (); @@ -502,29 +502,29 @@ static void get_old_fields (const char *gecos) * Now get the room number. It is the next comma separated field, * if there is indeed one. */ - if (cp) { + if (NULL != cp) { cp = copy_field (cp, rflg ? (char *) 0 : roomno, slop); } /* * Now get the work phone number. It is the third field. */ - if (cp) { + if (NULL != cp) { cp = copy_field (cp, wflg ? (char *) 0 : workph, slop); } /* * Now get the home phone number. It is the fourth field. */ - if (cp) { + if (NULL != cp) { cp = copy_field (cp, hflg ? (char *) 0 : homeph, slop); } /* * Anything left over is "slop". */ - if (cp && !oflg) { - if (slop[0]) { + if ((NULL != cp) && !oflg) { + if ('\0' != slop[0]) { strcat (slop, ","); } @@ -622,14 +622,14 @@ int main (int argc, char **argv) if (optind < argc) { user = argv[optind]; pw = xgetpwnam (user); - if (!pw) { + if (NULL == pw) { fprintf (stderr, _("%s: unknown user %s\n"), Prog, user); exit (E_NOPERM); } } else { pw = get_my_pwent (); - if (!pw) { + if (NULL == pw) { fprintf (stderr, _ ("%s: Cannot determine your user name.\n"), @@ -688,8 +688,8 @@ int main (int argc, char **argv) * Build the new GECOS field by plastering all the pieces together, * if they will fit ... */ - if (strlen (fullnm) + strlen (roomno) + strlen (workph) + - strlen (homeph) + strlen (slop) > (unsigned int) 80) { + if ((strlen (fullnm) + strlen (roomno) + strlen (workph) + + strlen (homeph) + strlen (slop)) > (unsigned int) 80) { fprintf (stderr, _("%s: fields too long\n"), Prog); closelog (); exit (E_NOPERM); @@ -711,3 +711,4 @@ int main (int argc, char **argv) closelog (); exit (E_SUCCESS); } +