X-Git-Url: http://git.tdb.fi/?p=pmount-gui.git;a=blobdiff_plain;f=main.c;h=e4fb87e425019da9253866b68a2d7a4f7ef60671;hp=9e02fcab676fe849170e52789d483d49e8023e76;hb=067969de3b72015bf53dc8e263025958bb766427;hpb=196a96ef5896f54290bb9125cea76ac2a43f29cb diff --git a/main.c b/main.c index 9e02fca..e4fb87e 100644 --- a/main.c +++ b/main.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include #include @@ -22,14 +23,16 @@ 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; +char **pmount_argv = NULL; /** Parses a string of the form name=value and places the components in a Property @@ -209,21 +212,21 @@ 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); @@ -237,30 +240,6 @@ 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. */ @@ -493,7 +472,38 @@ 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; @@ -504,7 +514,6 @@ 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) @@ -571,9 +580,10 @@ 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; } @@ -589,8 +599,12 @@ 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; @@ -607,8 +621,11 @@ 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); } @@ -618,28 +635,72 @@ Mounts a device if it was not mounted, or unmounts if it was. */ int toggle_device(Device *device, char *out_buf, int out_size) { - int umount = !!device->mounted; + int umount = !!device->mount_point; + char mount_point[1024]; int pos = 0; int status = 0; fd_set fds; struct timeval timeout; int pid; int pipe_fd[2]; + char suffix = 0; out_buf[0] = 0; + /* Find a mount point that does not exist yet. */ + while(1) + { + int len; + + 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); pid = fork(); if(pid==0) { /* Child process */ + + /* Complete construction of pmount call */ + int last; + + pmount_argv[0] = "pmount"; + + last = 0; + while(pmount_argv[++last]); + + pmount_argv[last] = device->node; + pmount_argv[last+1] = mount_point+7; + pmount_argv[last+2] = NULL; + if(verbosity>=1) { if(umount) printf("Running pumount %s\n", device->node); else - printf("Running pmount %s %s\n", device->node, device->label); + { + int i = 0; + printf("Running pmount"); + while(pmount_argv[++i]) + printf(" %s", pmount_argv[i]); + printf("\n"); + } } close(pipe_fd[0]); @@ -649,7 +710,7 @@ int toggle_device(Device *device, char *out_buf, int out_size) if(umount) execl("/usr/bin/pumount", "pumount", device->node, NULL); else - execl("/usr/bin/pmount", "pmount", device->node, device->label, NULL); + execvp("/usr/bin/pmount", pmount_argv); _exit(1); } else if(pid<0) @@ -707,7 +768,13 @@ int toggle_device(Device *device, char *out_buf, int out_size) if(!WIFEXITED(status) || WEXITSTATUS(status)) return -1; - device->mounted = !device->mounted; + if(umount) + { + free(device->mount_point); + device->mount_point = NULL; + } + else + device->mount_point = strdup(mount_point); return 0; } @@ -746,23 +813,17 @@ void row_activated(GtkTreeView *list, GtkTreePath *path, GtkTreeViewColumn *colu gtk_main_quit(); - if(post_mount_command && device->mounted) + if(post_mount_command && device->mount_point) { - char workdir[256]; - int len; - len = snprintf(workdir, sizeof(workdir), "/media/%s", device->label); - if(len<(int)sizeof(workdir)) - { - if(verbosity>=1) - printf("Running %s in %s\n", post_mount_command, workdir); + if(verbosity>=1) + printf("Running %s in %s\n", post_mount_command, device->mount_point); - pid = fork(); - if(pid==0) - { - chdir(workdir); - execlp(post_mount_command, post_mount_command, NULL); - _exit(1); - } + pid = fork(); + if(pid==0) + { + chdir(device->mount_point); + execlp(post_mount_command, post_mount_command, NULL); + _exit(1); } } @@ -812,7 +873,7 @@ 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" + "Usage: pmount-gui [-v] [-u] [-r ] [-h] [-- ]\n\n" "Options:\n" " -v Increase verbosity\n" " -u Unmount a device (default is mount)\n" @@ -855,6 +916,16 @@ int main(int argc, char **argv) return 0; } + /* argc - optind equals to number of options after "--" */ + /* One empty element at the beginning is for program name for execvp */ + /* Three empty elements at the end are required options for pmount + NULL */ + + pmount_argv = malloc(sizeof(char *)*(argc-optind+4)); + + for(i=0; i<(argc-optind); ++i) + pmount_argv[i+1] = argv[optind+i]; + pmount_argv[argc-optind+1] = NULL; + window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_container_set_border_width(GTK_CONTAINER(window), 5); g_signal_connect(window, "destroy", G_CALLBACK(>k_main_quit), NULL); @@ -889,7 +960,7 @@ 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); @@ -922,5 +993,7 @@ int main(int argc, char **argv) free_devices(devices); + free(pmount_argv); + return 0; }