Changeset b640738 in mainline

Timestamp:

2021-08-18T22:12:33Z (4 years ago)

Author:

Manuele Conti <manuele.conti@…>

Children:

12f5a1be

Parents:

d6a9824

Message:

Fix redirect using pipe

File:

• uspace/app/bdsh/input.c (modified) (4 diffs)

uspace/app/bdsh/input.c

@@ -200 +200 @@
                         pipe_pos[pipe_count++] = i;
                         cmd_argc = i;
-                        redir_to = tmpnam(NULL);
+                        redir_from = redir_to = tmpnam(NULL);
                         break;
 
@@ -251 +251 @@
         FILE *to = NULL;
 
-        if (redir_from) {
-                from = fopen(redir_from, "r");
-                if (from == NULL) {
-                        printf("Cannot open file %s\n", redir_from);
-                        rc = errno;
-                        goto finit_with_files;
-                }
-                new_iostate.stdin = from;
-        }
-
-        if (redir_to) {
-                to = fopen(redir_to, "w");
-                if (to == NULL) {
-                        printf("Cannot open file %s\n", redir_to);
-                        rc = errno;
-                        goto finit_with_files;
-                }
-                new_iostate.stdout = to;
-        }
 
         for (unsigned p = 0; p <= pipe_count; p++) {
@@ -302 +283 @@
                 }
 
-                if (p < pipe_count) {
-                        new_iostate.stdout = to;
-                }
-                if (p && p == pipe_count) {
-                        fseek(to, 0, SEEK_SET);
-                        new_iostate.stdin = to;
+                if (redir_to) {
+                        if ((p < pipe_count) || (pipe_count == 0)) {
+                                to = fopen(redir_to, "w");
+                                if (to == NULL) {
+                                        printf(
+                                            "Cannot open file %s redirect to\n",
+                                            redir_to);
+                                        rc = errno;
+                                        goto finit_with_files;
+                                }
+                                new_iostate.stdout = to;
+                        }
+                }
+
+                if (redir_from) {
+                        if ((p && p == pipe_count) || (pipe_count == 0)) {
+                                from = fopen(redir_from, "r");
+                                if (from == NULL) {
+                                        printf("Cannot open file %s redirect "
+                                               "from\n",
+                                            redir_from);
+                                        rc = errno;
+                                        goto finit_with_files;
+                                }
+                                new_iostate.stdin = from;
+                        }
                 }
 
@@ -316 +317 @@
                 }
 
+                if (to) {
+                        fclose(to);
+                        to = NULL;
+                }
+                if (from) {
+                        fclose(from);
+                        from = NULL;
+                }
                 // Restore the Standard Input, Output and Error file descriptors
                 new_iostate.stdin = stdin;