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diff --git a/bin/sh/parser.c b/bin/sh/parser.c
--- a/bin/sh/parser.c
+++ b/bin/sh/parser.c
@@ -2054,135 +2054,139 @@
/*
* Format prompt string.
*/
- for (i = 0; (i < PROMPTLEN - 1) && (*fmt != '\0'); i++, fmt++)
- if (*fmt == '\\')
- switch (*++fmt) {
+ for (i = 0; (i < PROMPTLEN - 1) && (*fmt != '\0'); i++, fmt++) {
+ if (*fmt != '\\') {
+ ps[i] = *fmt;
+ continue;
+ }
- /*
- * Non-printing sequence begin and end.
- */
- case '[':
- case ']':
- ps[i] = '\001';
- break;
+ switch (*++fmt) {
- /*
- * Literal \ and some ASCII characters:
- * \a BEL
- * \e ESC
- * \r CR
- */
- case '\\':
- case 'a':
- case 'e':
- case 'r':
- if (*fmt == 'a')
- ps[i] = '\007';
- else if (*fmt == 'e')
- ps[i] = '\033';
- else if (*fmt == 'r')
- ps[i] = '\r';
- else
- ps[i] = '\\';
- break;
+ /*
+ * Non-printing sequence begin and end.
+ */
+ case '[':
+ case ']':
+ ps[i] = '\001';
+ break;
- /*
- * CRLF sequence
- */
- case 'n':
- if (i < PROMPTLEN - 3) {
- ps[i++] = '\r';
- ps[i] = '\n';
- }
- break;
+ /*
+ * Literal \ and some ASCII characters:
+ * \a BEL
+ * \e ESC
+ * \r CR
+ */
+ case '\\':
+ case 'a':
+ case 'e':
+ case 'r':
+ if (*fmt == 'a')
+ ps[i] = '\007';
+ else if (*fmt == 'e')
+ ps[i] = '\033';
+ else if (*fmt == 'r')
+ ps[i] = '\r';
+ else
+ ps[i] = '\\';
+ break;
- /*
- * Hostname.
- *
- * \h specifies just the local hostname,
- * \H specifies fully-qualified hostname.
- */
- case 'h':
- case 'H':
- ps[i] = '\0';
- gethostname(&ps[i], PROMPTLEN - i - 1);
- ps[PROMPTLEN - 1] = '\0';
- /* Skip to end of hostname. */
- trim = (*fmt == 'h') ? '.' : '\0';
- while ((ps[i] != '\0') && (ps[i] != trim))
- i++;
- --i;
- break;
+ /*
+ * CRLF sequence
+ */
+ case 'n':
+ if (i < PROMPTLEN - 3) {
+ ps[i++] = '\r';
+ ps[i] = '\n';
+ }
+ break;
- /*
- * User name.
- */
- case 'u':
- ps[i] = '\0';
- getusername(&ps[i], PROMPTLEN - i);
- /* Skip to end of username. */
- while (ps[i + 1] != '\0')
- i++;
- break;
+ /*
+ * Hostname.
+ *
+ * \h specifies just the local hostname,
+ * \H specifies fully-qualified hostname.
+ */
+ case 'h':
+ case 'H':
+ ps[i] = '\0';
+ gethostname(&ps[i], PROMPTLEN - i - 1);
+ ps[PROMPTLEN - 1] = '\0';
+ /* Skip to end of hostname. */
+ trim = (*fmt == 'h') ? '.' : '\0';
+ while ((ps[i] != '\0') && (ps[i] != trim))
+ i++;
+ --i;
+ break;
- /*
- * Working directory.
- *
- * \W specifies just the final component,
- * \w specifies the entire path.
- */
- case 'W':
- case 'w':
- pwd = lookupvar("PWD");
- if (pwd == NULL || *pwd == '\0')
- pwd = "?";
- if (*fmt == 'W' &&
- *pwd == '/' && pwd[1] != '\0')
- strlcpy(&ps[i], strrchr(pwd, '/') + 1,
+ /*
+ * User name.
+ */
+ case 'u':
+ ps[i] = '\0';
+ getusername(&ps[i], PROMPTLEN - i);
+ /* Skip to end of username. */
+ while (ps[i + 1] != '\0')
+ i++;
+ break;
+
+ /*
+ * Working directory.
+ *
+ * \W specifies just the final component,
+ * \w specifies the entire path.
+ */
+ case 'W':
+ case 'w':
+ pwd = lookupvar("PWD");
+ if (pwd == NULL || *pwd == '\0')
+ pwd = "?";
+ if (*fmt == 'W' &&
+ *pwd == '/' && pwd[1] != '\0')
+ strlcpy(&ps[i], strrchr(pwd, '/') + 1,
+ PROMPTLEN - i);
+ else {
+ home = lookupvar("HOME");
+ if (home != NULL)
+ homelen = strlen(home);
+ if (home != NULL &&
+ strcmp(home, "/") != 0 &&
+ strncmp(pwd, home, homelen) == 0 &&
+ (pwd[homelen] == '/' ||
+ pwd[homelen] == '\0')) {
+ strlcpy(&ps[i], "~",
PROMPTLEN - i);
- else {
- home = lookupvar("HOME");
- if (home != NULL)
- homelen = strlen(home);
- if (home != NULL &&
- strcmp(home, "/") != 0 &&
- strncmp(pwd, home, homelen) == 0 &&
- (pwd[homelen] == '/' ||
- pwd[homelen] == '\0')) {
- strlcpy(&ps[i], "~",
- PROMPTLEN - i);
- strlcpy(&ps[i + 1],
- pwd + homelen,
- PROMPTLEN - i - 1);
- } else {
- strlcpy(&ps[i], pwd, PROMPTLEN - i);
- }
+ strlcpy(&ps[i + 1],
+ pwd + homelen,
+ PROMPTLEN - i - 1);
+ } else {
+ strlcpy(&ps[i], pwd, PROMPTLEN - i);
}
- /* Skip to end of path. */
- while (ps[i + 1] != '\0')
- i++;
- break;
+ }
+ /* Skip to end of path. */
+ while (ps[i + 1] != '\0')
+ i++;
+ break;
- /*
- * Superuser status.
- *
- * '$' for normal users, '#' for root.
- */
- case '$':
- ps[i] = (geteuid() != 0) ? '$' : '#';
- break;
+ /*
+ * Superuser status.
+ *
+ * '$' for normal users, '#' for root.
+ */
+ case '$':
+ ps[i] = (geteuid() != 0) ? '$' : '#';
+ break;
- /*
- * Emit unrecognized formats verbatim.
- */
- default:
- ps[i] = '\\';
- if (i < PROMPTLEN - 2)
- ps[++i] = *fmt;
- break;
- }
- else
- ps[i] = *fmt;
+ /*
+ * Emit unrecognized formats verbatim.
+ */
+ default:
+ ps[i] = '\\';
+ if (i < PROMPTLEN - 2)
+ ps[++i] = *fmt;
+ break;
+ }
+
+ }
ps[i] = '\0';
return (ps);
}

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