* libmisc/loginprompt.c: Avoid implicit conversion of pointers / chars to booleans.

[shadow] / libmisc / loginprompt.c

diff --git a/libmisc/loginprompt.c b/libmisc/loginprompt.c
index fddc7815ae030a92ea5618bfbe23d1efac032926..449da680c51eb79b7c5bc8d5fc6c460aa3cd188a 100644 (file)
--- a/libmisc/loginprompt.c
+++ b/libmisc/loginprompt.c
@@ -88,15 +88,19 @@ void login_prompt (const char *prompt, char *name, int namesize)
 
        if (prompt) {
                cp = getdef_str ("ISSUE_FILE");
-               if (cp && (fp = fopen (cp, "r"))) {
-                       while ((i = getc (fp)) != EOF)
-                               putc (i, stdout);
-
-                       fclose (fp);
+               if (NULL != cp) {
+                       fp = fopen (cp, "r");
+                       if (NULL != fp) {
+                               while ((i = getc (fp)) != EOF) {
+                                       putc (i, stdout);
+                               }
+
+                               (void) fclose (fp);
+                       }
                }
                gethostname (buf, sizeof buf);
                printf (prompt, buf);
-               fflush (stdout);
+               (void) fflush (stdout);
        }
 
        /* 
@@ -105,12 +109,14 @@ void login_prompt (const char *prompt, char *name, int namesize)
         */
 
        memzero (buf, sizeof buf);
-       if (fgets (buf, sizeof buf, stdin) != buf)
+       if (fgets (buf, sizeof buf, stdin) != buf) {
                exit (1);
+       }
 
        cp = strchr (buf, '\n');
-       if (!cp)
+       if (NULL == cp) {
                exit (1);
+       }
        *cp = '\0';             /* remove \n [ must be there ] */
 
        /*
@@ -122,11 +128,13 @@ void login_prompt (const char *prompt, char *name, int namesize)
        for (cp = buf; *cp == ' ' || *cp == '\t'; cp++);
 
        for (i = 0; i < namesize - 1 && isgraph (*cp); name[i++] = *cp++);
-       while (isgraph (*cp))
+       while (isgraph (*cp)) {
                cp++;
+       }
 
-       if (*cp)
+       if ('\0' != *cp) {
                cp++;
+       }
 
        name[i] = '\0';
 
@@ -136,15 +144,16 @@ void login_prompt (const char *prompt, char *name, int namesize)
         * to do this, and I just take the easy way out.
         */
 
-       if (*cp != '\0') {      /* process new variables */
+       if ('\0' != *cp) {      /* process new variables */
                char *nvar;
                int count = 1;
 
                for (envc = 0; envc < MAX_ENV; envc++) {
-                       nvar = strtok (envc ? (char *) 0 : cp, " \t,");
-                       if (!nvar)
+                       nvar = strtok ((0 != envc) ? (char *) 0 : cp, " \t,");
+                       if (NULL == nvar) {
                                break;
-                       if (strchr (nvar, '=')) {
+                       }
+                       if (strchr (nvar, '=') != NULL) {
                                envp[envc] = nvar;
                        } else {
                                envp[envc] = xmalloc (strlen (nvar) + 32);
@@ -163,3 +172,4 @@ void login_prompt (const char *prompt, char *name, int namesize)
        signal (SIGTSTP, sigtstp);
 #endif
 }
+