X-Git-Url: http://git.tdb.fi/?p=pmount-gui.git;a=blobdiff_plain;f=main.c;h=5aa961130cd80890b732ea6be857b1a23547c8a1;hp=49239cf9af722127c3355b57f42c87ef2667173c;hb=0a8aff086f409621047d9dd62ffee7ae0a819c96;hpb=562379b75157fd8908a86fb4620e5f906150691e diff --git a/main.c b/main.c index 49239cf..5aa9611 100644 --- a/main.c +++ b/main.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include #include @@ -22,13 +23,15 @@ typedef struct sProperty typedef struct sDevice { char *node; + char *devname; char *label; char *description; - int mounted; + char *mount_point; time_t time; } Device; int verbosity = 0; +char *post_mount_command = NULL; /** Parses a string of the form name=value and places the components in a Property @@ -208,21 +211,21 @@ void free_properties(Property *props) } /** -Reads device names from an fstab/mtab file. +Returns an array of user-mountable devices listed in fstab. */ -char **get_mount_entries(char *filename, int (*predicate)(struct mntent *)) +char **get_fstab_devices(void) { FILE *file; struct mntent *me; char **devices = NULL; int n_devices = 0; - file = setmntent(filename, "r"); + file = setmntent("/etc/fstab", "r"); if(!file) return NULL; while((me = getmntent(file))) - if(!predicate || predicate(me)) + if(hasmntopt(me, "user")!=NULL) { devices = (char **)realloc(devices, (n_devices+2)*sizeof(char *)); devices[n_devices] = strdup(me->mnt_fsname); @@ -236,30 +239,6 @@ char **get_mount_entries(char *filename, int (*predicate)(struct mntent *)) return devices; } -/** -Returns an array of all currently mounted devices. -*/ -char **get_mounted_devices(void) -{ - return get_mount_entries("/etc/mtab", NULL); -} - -/** -Checks if an fstab entry has the user option set. -*/ -int is_user_mountable(struct mntent *me) -{ - return hasmntopt(me, "user")!=NULL; -} - -/** -Returns an array of user-mountable devices listed in fstab. -*/ -char **get_fstab_devices(void) -{ - return get_mount_entries("/etc/fstab", &is_user_mountable); -} - /** Checks if an array of strings contains the specified string. */ @@ -492,7 +471,38 @@ char **get_device_nodes(char *dirname) return nodes; } -/** Returns an array of all mountable devices. */ +/** +Reads the list of mounted devices from /etc/mtab and records the mount points. +*/ +void check_mounts(Device *devices) +{ + FILE *file; + struct mntent *me; + + file = setmntent("/etc/mtab", "r"); + if(!file) + return; + + while((me = getmntent(file))) + { + int i; + + for(i=0; devices[i].node; ++i) + if(!strcmp(devices[i].devname, me->mnt_fsname)) + { + devices[i].mount_point = strdup(me->mnt_dir); + + if(verbosity>=1) + printf("Device %s is mounted on %s\n", devices[i].node, devices[i].mount_point); + } + } + + endmntent(file); +} + +/** +Returns an array of all mountable devices. +*/ Device *get_devices(void) { char **nodes = NULL; @@ -503,7 +513,6 @@ Device *get_devices(void) int i; nodes = get_device_nodes("/dev/disk/by-id"); - mounted = get_mounted_devices(); fstab = get_fstab_devices(); for(i=0; nodes[i]; ++i) @@ -570,9 +579,10 @@ Device *get_devices(void) /* Reserve space for a sentinel entry. */ devices = (Device *)realloc(devices, (n_devices+2)*sizeof(Device)); devices[n_devices].node = nodes[i]; + devices[n_devices].devname = strdup(devname); devices[n_devices].label = strdup(label); devices[n_devices].description = strdup(buf); - devices[n_devices].mounted = is_in_array(mounted, devname); + devices[n_devices].mount_point = NULL; devices[n_devices].time = st.st_mtime; ++n_devices; } @@ -588,8 +598,12 @@ Device *get_devices(void) { /* Terminate the array with NULL pointers. */ devices[n_devices].node = NULL; + devices[n_devices].devname = NULL; devices[n_devices].label = NULL; devices[n_devices].description = NULL; + devices[n_devices].mount_point = NULL; + + check_mounts(devices); } return devices; @@ -606,36 +620,54 @@ void free_devices(Device *devices) for(i=0; devices[i].node; ++i) { free(devices[i].node); + free(devices[i].devname); free(devices[i].label); free(devices[i].description); + if(devices[i].mount_point) + free(devices[i].mount_point); } free(devices); } /** -Callback for activating a row in the device list. Mounts or unmounts the -device depending on operating mode. +Mounts a device if it was not mounted, or unmounts if it was. */ -void row_activated(GtkTreeView *list, GtkTreePath *path, GtkTreeViewColumn *column, gpointer user_data) +int toggle_device(Device *device, char *out_buf, int out_size) { - GtkTreeModel *model; - GtkTreeIter iter; - int umount = *(int *)user_data; - char buf[1024]; + int umount = !!device->mount_point; + char mount_point[1024]; int pos = 0; int status = 0; fd_set fds; struct timeval timeout; - Device *device; int pid; int pipe_fd[2]; + char suffix = 0; - model = gtk_tree_view_get_model(list); + out_buf[0] = 0; - if(!gtk_tree_model_get_iter(model, &iter, path)) - return; + /* Find a mount point that does not exist yet. */ + while(1) + { + int len; - gtk_tree_model_get(model, &iter, 1, &device, -1); + len = snprintf(mount_point, sizeof(mount_point), "/media/%s", device->label); + if(len+2>=(int)sizeof(mount_point)) + return -1; + + if(suffix) + len += snprintf(mount_point+len, sizeof(mount_point)-len, "_%c", suffix); + + if(access(mount_point, F_OK)<0 && errno==ENOENT) + break; + + if(suffix==0) + suffix = '1'; + else if(suffix<'9') + ++suffix; + else + return -1; + } pipe(pipe_fd); @@ -648,7 +680,7 @@ void row_activated(GtkTreeView *list, GtkTreePath *path, GtkTreeViewColumn *colu if(umount) printf("Running pumount %s\n", device->node); else - printf("Running pmount %s %s\n", device->node, device->label); + printf("Running pmount %s %s\n", device->node, mount_point+7); } close(pipe_fd[0]); @@ -658,11 +690,11 @@ void row_activated(GtkTreeView *list, GtkTreePath *path, GtkTreeViewColumn *colu if(umount) execl("/usr/bin/pumount", "pumount", device->node, NULL); else - execl("/usr/bin/pmount", "pmount", device->node, device->label, NULL); + execl("/usr/bin/pmount", "pmount", device->node, mount_point+7, NULL); _exit(1); } else if(pid<0) - return; + return -1; /* Parent process */ @@ -680,7 +712,7 @@ void row_activated(GtkTreeView *list, GtkTreePath *path, GtkTreeViewColumn *colu { int len; - len = read(pipe_fd[0], buf+pos, sizeof(buf)-pos-1); + len = read(pipe_fd[0], out_buf+pos, out_size-pos-1); if(len<=0) break; pos += len; @@ -692,10 +724,11 @@ void row_activated(GtkTreeView *list, GtkTreePath *path, GtkTreeViewColumn *colu } } + close(pipe_fd[0]); if(pid) waitpid(pid, &status, 0); - buf[pos] = 0; + out_buf[pos] = 0; if(verbosity>=1) { @@ -713,12 +746,46 @@ void row_activated(GtkTreeView *list, GtkTreePath *path, GtkTreeViewColumn *colu } if(!WIFEXITED(status) || WEXITSTATUS(status)) + return -1; + + if(umount) + { + free(device->mount_point); + device->mount_point = NULL; + } + else + device->mount_point = strdup(mount_point); + + return 0; +} + +/** +Callback for activating a row in the device list. Mounts or unmounts the +device depending on operating mode. +*/ +void row_activated(GtkTreeView *list, GtkTreePath *path, GtkTreeViewColumn *column, gpointer user_data) +{ + GtkTreeModel *model; + GtkTreeIter iter; + Device *device; + int ret; + char output[1024]; + int pid; + + model = gtk_tree_view_get_model(list); + + if(!gtk_tree_model_get_iter(model, &iter, path)) + return; + + gtk_tree_model_get(model, &iter, 1, &device, -1); + ret = toggle_device(device, output, sizeof(output)); + if(ret) { GtkWidget *dialog; /* Pmount terminated with nonzero status or a signal. Display an error to the user. */ - dialog = gtk_message_dialog_new(NULL, 0, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", buf); + dialog = gtk_message_dialog_new(NULL, 0, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", output); g_signal_connect(dialog, "response", >k_main_quit, NULL); gtk_widget_show_all(dialog); return; @@ -726,7 +793,22 @@ void row_activated(GtkTreeView *list, GtkTreePath *path, GtkTreeViewColumn *colu gtk_main_quit(); + if(post_mount_command && device->mount_point) + { + if(verbosity>=1) + printf("Running %s in %s\n", post_mount_command, device->mount_point); + + pid = fork(); + if(pid==0) + { + chdir(device->mount_point); + execlp(post_mount_command, post_mount_command, NULL); + _exit(1); + } + } + (void)column; + (void)user_data; } /** @@ -767,6 +849,18 @@ gboolean key_press(GtkWidget *widget, GdkEvent *event, gpointer user_data) return FALSE; } +void show_help(void) +{ + printf("pmount-gui\n" + "Copyright (c) 2011-2015 Mikko Rasa, Mikkosoft Productions\n\n" + "Usage: pmount-gui [-v] [-u] [-r ] [-h]\n\n" + "Options:\n" + " -v Increase verbosity\n" + " -u Unmount a device (default is mount)\n" + " -r Run a command after mounting\n" + " -h Display this help\n"); +} + int main(int argc, char **argv) { GtkWidget *window; @@ -786,7 +880,7 @@ int main(int argc, char **argv) gtk_init(&argc, &argv); - while((opt = getopt(argc, argv, "vu"))!=-1) switch(opt) + while((opt = getopt(argc, argv, "vur:h"))!=-1) switch(opt) { case 'v': ++verbosity; @@ -794,6 +888,12 @@ int main(int argc, char **argv) case 'u': umount = 1; break; + case 'r': + post_mount_command = optarg; + break; + case 'h': + show_help(); + return 0; } window = gtk_window_new(GTK_WINDOW_TOPLEVEL); @@ -810,7 +910,7 @@ int main(int argc, char **argv) list = gtk_tree_view_new(); gtk_container_add(GTK_CONTAINER(viewport), list); - g_signal_connect(list, "row-activated", G_CALLBACK(&row_activated), &umount); + g_signal_connect(list, "row-activated", G_CALLBACK(&row_activated), NULL); store = gtk_list_store_new(2, G_TYPE_STRING, G_TYPE_POINTER); gtk_tree_view_set_model(GTK_TREE_VIEW(list), GTK_TREE_MODEL(store)); @@ -830,7 +930,7 @@ int main(int argc, char **argv) /* Populate the list with devices in appropriate state. */ latest = 0; for(i=0; devices[i].node; ++i) - if(!devices[i].mounted==!umount) + if(!devices[i].mount_point==!umount) { gtk_list_store_append(store, &iter); gtk_list_store_set(store, &iter, 0, devices[i].description, 1, &devices[i], -1);