volinfo: avoid exit on errors

Instead of exiting on errors, try to carry on.

Change-Id: Ia8da9403c57c19ac25a3ef4dac36c3e71bd1be25
Reviewed-on: http://gerrit.openafs.org/4736
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>

diff --git a/src/vol/vol-info.c b/src/vol/vol-info.c
index 4155bec683f35ba0cbf6ba50bef22401e623d3bb..e8c50454af90c7c88e6cf2610e809a8f51540392 100644 (file)
--- a/src/vol/vol-info.c
+++ b/src/vol/vol-info.c
@@ -297,7 +297,7 @@ handleit(struct cmd_syndesc *as, void *arock)
 #ifndef AFS_NT40_ENV
     if (geteuid() != 0) {
        fprintf(stderr, "%s: Must be run as root; sorry\n", progname);
-       exit(1);
+       return 1;
     }
 #endif
 
@@ -371,7 +371,7 @@ handleit(struct cmd_syndesc *as, void *arock)
            fprintf(stderr,
                    "%s: %s is not an AFS partition name on this server.\n",
                    progname, partName);
-           exit(1);
+           return 1;
        }
     }
 
@@ -390,7 +390,7 @@ handleit(struct cmd_syndesc *as, void *arock)
                fprintf(stderr,
                        "%s: Current partition is not a vice partition.\n",
                        progname);
-               exit(1);
+               return 1;
            }
        }
        snprintf(name1, sizeof name1, VFORMAT,
@@ -432,7 +432,7 @@ FindCurrentPartition(void)
        fprintf(stderr, "%s: Failed to get current working directory: ",
                progname);
        perror("pwd");
-       exit(1);
+       return NULL;
     }
     p = strchr(&partName[1], OS_DIRSEPC);
     if (p) {
@@ -444,7 +444,7 @@ FindCurrentPartition(void)
            *p = tmp;
        fprintf(stderr, "%s: %s is not a valid vice partition.\n", progname,
                partName);
-       exit(1);
+       return NULL;
     }
     return dp;
 }
@@ -487,7 +487,7 @@ HandlePart(struct DiskPartition64 *partP)
     if ((dirp = opendir(p)) == NULL) {
        fprintf(stderr, "%s: Can't read directory %s; giving up\n", progname,
                p);
-       exit(1);
+       return;
     }
     while ((dp = readdir(dirp))) {
        p = (char *)strrchr(dp->d_name, '.');
@@ -772,15 +772,15 @@ NT_date(FILETIME * ft)
 }
 #endif
 
-static void
+static int
 GetFileInfo(FD_t fd, int *size, char **ctime, char **mtime, char **atime)
 {
 #ifdef AFS_NT40_ENV
     BY_HANDLE_FILE_INFORMATION fi;
     if (!GetFileInformationByHandle(fd, &fi)) {
-       fprintf(stderr, "%s: GetFileInformationByHandle failed, exiting\n",
+       fprintf(stderr, "%s: GetFileInformationByHandle failed\n",
                progname);
-       exit(1);
+       return -1;
     }
     *size = (int)fi.nFileSizeLow;
     *ctime = "N/A";
@@ -790,13 +790,14 @@ GetFileInfo(FD_t fd, int *size, char **ctime, char **mtime, char **atime)
     struct afs_stat_st status;
     if (afs_fstat(fd, &status) == -1) {
        fprintf(stderr, "%s: fstat failed %d\n", progname, errno);
-       exit(1);
+       return -1;
     }
     *size = (int)status.st_size;
     *ctime = date(status.st_ctime);
     *mtime = date(status.st_mtime);
     *atime = date(status.st_atime);
 #endif
+    return 0;
 }
 
 /**
@@ -885,12 +886,12 @@ HandleVnodes(Volume * vp, VnodeClass class)
        (class == vSmall ? SIZEOF_SMALLDISKVNODE : SIZEOF_LARGEDISKVNODE);
     char buf[SIZEOF_LARGEDISKVNODE];
     struct VnodeDiskObject *vnode = (struct VnodeDiskObject *)buf;
-    StreamHandle_t *file;
+    StreamHandle_t *file = NULL;
     int vnodeIndex, nVnodes;
     afs_foff_t offset = 0;
     Inode ino;
     IHandle_t *ih = vp->vnodeIndex[class].handle;
-    FdHandle_t *fdP;
+    FdHandle_t *fdP = NULL;
     int size;
     char *ctime, *atime, *mtime;
 
@@ -907,7 +908,7 @@ HandleVnodes(Volume * vp, VnodeClass class)
        if (SaveInodes) {
            printf("Saving all volume files to current directory ...\n");
            if (ShowSizes) {
-               PrintingVolumeSizes = 0; /* print heading again */
+               PrintingVolumeSizes = 0;        /* print heading again */
            }
        }
     }
@@ -915,16 +916,18 @@ HandleVnodes(Volume * vp, VnodeClass class)
     fdP = IH_OPEN(ih);
     if (fdP == NULL) {
        fprintf(stderr, "%s: open failed: ", progname);
-       exit(1);
+       goto error;
     }
 
     file = FDH_FDOPEN(fdP, "r");
     if (!file) {
        fprintf(stderr, "%s: fdopen failed\n", progname);
-       exit(1);
+       goto error;
     }
 
-    GetFileInfo(fdP->fd_fd, &size, &ctime, &atime, &mtime);
+    if (GetFileInfo(fdP->fd_fd, &size, &ctime, &atime, &mtime) != 0) {
+       goto error;
+    }
     if (InodeTimes) {
        printf("ichanged : %s\nimodified: %s\niaccessed: %s\n\n", ctime,
               mtime, atime);
@@ -958,8 +961,14 @@ HandleVnodes(Volume * vp, VnodeClass class)
                       bitNumberToVnodeNumber(vnodeIndex, class), ino, vp);
        }
     }
-    STREAM_CLOSE(file);
-    FDH_CLOSE(fdP);
+
+  error:
+    if (file) {
+       STREAM_CLOSE(file);
+    }
+    if (fdP) {
+       FDH_CLOSE(fdP);
+    }
 }
 
 void