X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=miscutils%2Fmakedevs.c;h=24d07ebe0f3f253fd8b35395aee346bf306dda9e;hb=3a2b103eea9f87fa476b1f8c4ed4a11b7422eab8;hp=308d651ae92e4433a397bc4140c83b254952c5f3;hpb=cad5364599eb5062d59e0c397ed638ddd61a8d5d;p=oweals%2Fbusybox.git diff --git a/miscutils/makedevs.c b/miscutils/makedevs.c index 308d651ae..24d07ebe0 100644 --- a/miscutils/makedevs.c +++ b/miscutils/makedevs.c @@ -1,9 +1,9 @@ /* vi: set sw=4 ts=4: */ /* * public domain -- Dave 'Kill a Cop' Cinege - * + * * makedevs - * Make ranges of device files quickly. + * Make ranges of device files quickly. * known bugs: can't deal with alpha ranges */ @@ -11,22 +11,26 @@ #include #include #include +#include +#include #include #include +#include /* major() and minor() */ #include "busybox.h" +#ifdef CONFIG_FEATURE_MAKEDEVS_LEAF int makedevs_main(int argc, char **argv) { mode_t mode; char *basedev, *type, *nodname, buf[255]; - int major, Sminor, S, E; + int Smajor, Sminor, S, E; if (argc < 7 || *argv[1]=='-') bb_show_usage(); basedev = argv[1]; type = argv[2]; - major = atoi(argv[3]) << 8; /* correcting param to mknod() */ + Smajor = atoi(argv[3]); Sminor = atoi(argv[4]); S = atoi(argv[5]); E = atoi(argv[6]); @@ -57,7 +61,7 @@ int makedevs_main(int argc, char **argv) /* if mode != S_IFCHR and != S_IFBLK third param in mknod() ignored */ - if (mknod(nodname, mode, major | Sminor)) + if (mknod(nodname, mode, makedev(Smajor, Sminor))) bb_error_msg("Failed to create: %s", nodname); if (nodname == basedev) /* ex. /dev/hda - to /dev/hda1 ... */ @@ -69,24 +73,168 @@ int makedevs_main(int argc, char **argv) return 0; } -/* -And this is what this program replaces. The shell is too slow! - -makedev () { -local basedev=$1; local S=$2; local E=$3 -local major=$4; local Sminor=$5; local type=$6 -local sbase=$7 - - if [ ! "$sbase" = "" ]; then - mknod "$basedev" $type $major $Sminor - S=`expr $S + 1` - Sminor=`expr $Sminor + 1` - fi - - while [ $S -le $E ]; do - mknod "$basedev$S" $type $major $Sminor - S=`expr $S + 1` - Sminor=`expr $Sminor + 1` - done +#elif defined CONFIG_FEATURE_MAKEDEVS_TABLE + +/* Licensed under the GPL v2 or later, see the file LICENSE in this tarball. */ + +int makedevs_main(int argc, char **argv) +{ + FILE *table = stdin; + char *rootdir = NULL; + char *line = NULL; + int linenum = 0; + int ret = EXIT_SUCCESS; + + unsigned long flags; + flags = bb_getopt_ulflags(argc, argv, "d:", &line); + if (line) + table = bb_xfopen(line, "r"); + + if (optind >= argc || (rootdir=argv[optind])==NULL) { + bb_error_msg_and_die("root directory not specified"); + } + + bb_xchdir(rootdir); + + umask(0); + + printf("rootdir=%s\n", rootdir); + if (line) { + printf("table='%s'\n", line); + } else { + printf("table=\n"); + } + + while ((line = bb_get_chomped_line_from_file(table))) { + char type; + unsigned int mode = 0755; + unsigned int major = 0; + unsigned int minor = 0; + unsigned int count = 0; + unsigned int increment = 0; + unsigned int start = 0; + char name[41]; + char user[41]; + char group[41]; + char *full_name; + uid_t uid; + gid_t gid; + + linenum++; + + if ((2 > sscanf(line, "%40s %c %o %40s %40s %u %u %u %u %u", name, + &type, &mode, user, group, &major, + &minor, &start, &increment, &count)) || + ((major | minor | start | count | increment) > 255)) + { + if (*line=='\0' || *line=='#' || isspace(*line)) + continue; + bb_error_msg("line %d invalid: '%s'\n", linenum, line); + ret = EXIT_FAILURE; + continue; + } + if (name[0] == '#') { + continue; + } + + gid = (*group) ? get_ug_id(group, bb_xgetgrnam) : getgid(); + uid = (*user) ? get_ug_id(user, bb_xgetpwnam) : getuid(); + full_name = concat_path_file(rootdir, name); + + if (type == 'd') { + bb_make_directory(full_name, mode | S_IFDIR, FILEUTILS_RECUR); + if (chown(full_name, uid, gid) == -1) { + bb_perror_msg("line %d: chown failed for %s", linenum, full_name); + ret = EXIT_FAILURE; + goto loop; + } + if ((mode != -1) && (chmod(full_name, mode) < 0)){ + bb_perror_msg("line %d: chmod failed for %s", linenum, full_name); + ret = EXIT_FAILURE; + goto loop; + } + } else if (type == 'f') { + struct stat st; + if ((stat(full_name, &st) < 0 || !S_ISREG(st.st_mode))) { + bb_perror_msg("line %d: regular file '%s' does not exist", linenum, full_name); + ret = EXIT_FAILURE; + goto loop; + } + if (chown(full_name, uid, gid) == -1) { + bb_perror_msg("line %d: chown failed for %s", linenum, full_name); + ret = EXIT_FAILURE; + goto loop; + } + if ((mode != -1) && (chmod(full_name, mode) < 0)){ + bb_perror_msg("line %d: chmod failed for %s", linenum, full_name); + ret = EXIT_FAILURE; + goto loop; + } + } else + { + dev_t rdev; + + if (type == 'p') { + mode |= S_IFIFO; + } + else if (type == 'c') { + mode |= S_IFCHR; + } + else if (type == 'b') { + mode |= S_IFBLK; + } else { + bb_error_msg("line %d: unsupported file type %c", linenum, type); + ret = EXIT_FAILURE; + goto loop; + } + + if (count > 0) { + int i; + char *full_name_inc; + + full_name_inc = xmalloc(strlen(full_name) + 4); + for (i = start; i < count; i++) { + sprintf(full_name_inc, "%s%d", full_name, i); + rdev = (major << 8) + minor + (i * increment - start); + if (mknod(full_name_inc, mode, rdev) == -1) { + bb_perror_msg("line %d: could not create node %s", linenum, full_name_inc); + ret = EXIT_FAILURE; + } + else if (chown(full_name_inc, uid, gid) == -1) { + bb_perror_msg("line %d: chown failed for %s", linenum, full_name_inc); + ret = EXIT_FAILURE; + } + if ((mode != -1) && (chmod(full_name_inc, mode) < 0)){ + bb_perror_msg("line %d: chmod failed for %s", linenum, full_name_inc); + ret = EXIT_FAILURE; + } + } + free(full_name_inc); + } else { + rdev = (major << 8) + minor; + if (mknod(full_name, mode, rdev) == -1) { + bb_perror_msg("line %d: could not create node %s", linenum, full_name); + ret = EXIT_FAILURE; + } + else if (chown(full_name, uid, gid) == -1) { + bb_perror_msg("line %d: chown failed for %s", linenum, full_name); + ret = EXIT_FAILURE; + } + if ((mode != -1) && (chmod(full_name, mode) < 0)){ + bb_perror_msg("line %d: chmod failed for %s", linenum, full_name); + ret = EXIT_FAILURE; + } + } + } +loop: + free(line); + free(full_name); + } + fclose(table); + + return 0; } -*/ + +#else +# error makedevs configuration error, either leaf or table must be selected +#endif