X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=apps%2Fopt.c;h=902563639679fd6298dae6fbd04ae215c29e11d8;hp=40d6a279b3dfa36b0b7f50c9f956f8671adc054d;hb=f39276fdff6ccc1c71bdb30a8050fa1c0bf6e20a;hpb=00dfbaad88a69ed8294d6039bf5f7d722f72bf39

diff --git a/apps/opt.c b/apps/opt.c
index 40d6a279b3..9025636396 100644
--- a/apps/opt.c
+++ b/apps/opt.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2017 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
  *
  * Licensed under the OpenSSL license (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
@@ -58,8 +58,8 @@ char *opt_progname(const char *argv0)
         n -= 4;
 
     /* Copy over the name, in lowercase. */
-    if (n > sizeof prog - 1)
-        n = sizeof prog - 1;
+    if (n > sizeof(prog) - 1)
+        n = sizeof(prog) - 1;
     for (q = prog, i = 0; i < n; i++, p++)
         *q++ = tolower((unsigned char)*p);
     *q = '\0';
@@ -80,9 +80,9 @@ char *opt_progname(const char *argv0)
         }
 
     q = strrchr(p, '.');
-    strncpy(prog, p, sizeof prog - 1);
-    prog[sizeof prog - 1] = '\0';
-    if (q != NULL && q - p < sizeof prog)
+    strncpy(prog, p, sizeof(prog) - 1);
+    prog[sizeof(prog) - 1] = '\0';
+    if (q != NULL && q - p < sizeof(prog))
         prog[q - p] = '\0';
     return prog;
 }
@@ -99,8 +99,8 @@ char *opt_progname(const char *argv0)
             p++;
             break;
         }
-    strncpy(prog, p, sizeof prog - 1);
-    prog[sizeof prog - 1] = '\0';
+    strncpy(prog, p, sizeof(prog) - 1);
+    prog[sizeof(prog) - 1] = '\0';
     return prog;
 }
 #endif
@@ -278,7 +278,7 @@ int opt_cipher(const char *name, const EVP_CIPHER **cipherp)
     *cipherp = EVP_get_cipherbyname(name);
     if (*cipherp != NULL)
         return 1;
-    BIO_printf(bio_err, "%s: Unknown cipher %s\n", prog, name);
+    BIO_printf(bio_err, "%s: Unrecognized flag %s\n", prog, name);
     return 0;
 }
 
@@ -290,7 +290,7 @@ int opt_md(const char *name, const EVP_MD **mdp)
     *mdp = EVP_get_digestbyname(name);
     if (*mdp != NULL)
         return 1;
-    BIO_printf(bio_err, "%s: Unknown digest %s\n", prog, name);
+    BIO_printf(bio_err, "%s: Unrecognized flag %s\n", prog, name);
     return 0;
 }
 
@@ -613,13 +613,17 @@ int opt_verify(int opt, X509_VERIFY_PARAM *vpm)
  */
 int opt_next(void)
 {
-    char *p;
+    char *p, *estr;
     const OPTIONS *o;
     int ival;
     long lval;
     unsigned long ulval;
     ossl_intmax_t imval;
     ossl_uintmax_t umval;
+#if !defined(_WIN32)
+    char *c;
+    int oerrno;
+#endif
 
     /* Look at current arg; at end of the list? */
     arg = NULL;
@@ -676,13 +680,13 @@ int opt_next(void)
             /* Just a string. */
             break;
         case '/':
-            if (app_isdir(arg) >= 0)
+            if (app_isdir(arg) > 0)
                 break;
             BIO_printf(bio_err, "%s: Not a directory: %s\n", prog, arg);
             return -1;
         case '<':
             /* Input file. */
-            if (strcmp(arg, "-") == 0 || app_access(arg, R_OK) >= 0)
+            if (strcmp(arg, "-") == 0 || app_access(arg, R_OK) == 0)
                 break;
             BIO_printf(bio_err,
                        "%s: Cannot open input file %s, %s\n",
@@ -690,11 +694,38 @@ int opt_next(void)
             return -1;
         case '>':
             /* Output file. */
-            if (strcmp(arg, "-") == 0 || app_access(arg, W_OK) >= 0 || errno == ENOENT)
+#if !defined(_WIN32)
+            c = OPENSSL_strdup(arg);
+            if (c == NULL) {
+                BIO_printf(bio_err,
+                           "%s: Memory allocation failure\n", prog);
+                return -1;
+            }
+            oerrno = errno;
+            errno = 0;
+            if (strcmp(arg, "-") == 0
+                || (app_access(app_dirname(c), W_OK) == 0
+                    && app_isdir(arg) <= 0
+                    && (app_access(arg, W_OK) == 0 || errno == ENOENT))) {
+                OPENSSL_free(c);
                 break;
+            }
+            OPENSSL_free(c);
+            if (errno == 0)
+                /* only possible if 'arg' is a directory */
+                estr = "is a directory";
+            else
+                estr = strerror(errno);
+            errno = oerrno;
+#else
+            if (strcmp(arg, "-") == 0 || app_access(arg, W_OK) == 0
+                || errno == ENOENT)
+                break;
+            estr = strerror(errno);
+#endif
             BIO_printf(bio_err,
                        "%s: Cannot open output file %s, %s\n",
-                       prog, arg, strerror(errno));
+                       prog, arg, estr);
             return -1;
         case 'p':
         case 'n':
@@ -859,7 +890,7 @@ void opt_help(const OPTIONS *list)
             i += 1 + strlen(valtype2param(o));
         if (i < MAX_OPT_HELP_WIDTH && i > width)
             width = i;
-        assert(i < (int)sizeof start);
+        assert(i < (int)sizeof(start));
     }
 
     if (standard_prolog)
@@ -876,7 +907,7 @@ void opt_help(const OPTIONS *list)
 
         /* Pad out prefix */
         memset(start, ' ', sizeof(start) - 1);
-        start[sizeof start - 1] = '\0';
+        start[sizeof(start) - 1] = '\0';
 
         if (o->name == OPT_MORE_STR) {
             /* Continuation of previous line; pad and print. */