/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ /* ** Netscape portable install command. ** ** Brendan Eich, 7/20/95 */ #include <stdio.h> /* OSF/1 requires this before grp.h, so put it first */ #include <assert.h> #include <fcntl.h> #include <errno.h> #include <dirent.h> #include <limits.h> #include <grp.h> #include <pwd.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <utime.h> #include <sys/types.h> #include <sys/stat.h> #include "pathsub.h" #ifdef HAVE_GETOPT_H #include <getopt.h> #endif #ifdef SUNOS4 #include "sunos4.h" #endif #ifdef NEXTSTEP #include <bsd/libc.h> #endif #ifdef __QNX__ #include <unix.h> #endif #ifdef NEED_S_ISLNK #if !defined(S_ISLNK) && defined(S_IFLNK) #define S_ISLNK(a) (((a) & S_IFMT) == S_IFLNK) #endif #endif #ifndef _DIRECTORY_SEPARATOR #define _DIRECTORY_SEPARATOR "/" #endif /* _DIRECTORY_SEPARATOR */ #ifdef NEED_FCHMOD_PROTO extern int fchmod(int fildes, mode_t mode); #endif static void usage(void) { fprintf(stderr, "usage: %s [-C cwd] [-L linkprefix] [-m mode] [-o owner] [-g group]\n" " %*s [-DdltR] file [file ...] directory\n", program, (int) strlen(program), ""); exit(2); } static int mkdirs(char *path, mode_t mode) { char *cp; struct stat sb; int res; int l; /* strip trailing "/." */ l = strlen(path); if(l > 1 && path[l - 1] == '.' && path[l - 2] == '/') path[l - 2] = 0; while (*path == '/' && path[1] == '/') path++; for (cp = strrchr(path, '/'); cp && cp != path && *(cp - 1) == '/'; cp--); if (cp && cp != path) { *cp = '\0'; if ((lstat(path, &sb) < 0 || !S_ISDIR(sb.st_mode)) && mkdirs(path, mode) < 0) { return -1; } *cp = '/'; } res = mkdir(path, mode); if ((res != 0) && (errno == EEXIST)) return 0; else return res; } static uid_t touid(char *owner) { struct passwd *pw; uid_t uid; char *cp; pw = getpwnam(owner); if (pw) return pw->pw_uid; uid = strtol(owner, &cp, 0); if (uid == 0 && cp == owner) fail("cannot find uid for %s", owner); return uid; } static gid_t togid(char *group) { struct group *gr; gid_t gid; char *cp; gr = getgrnam(group); if (gr) return gr->gr_gid; gid = strtol(group, &cp, 0); if (gid == 0 && cp == group) fail("cannot find gid for %s", group); return gid; } static void copyfile( char *name, char *toname, mode_t mode, char *group, char *owner, int dotimes, uid_t uid, gid_t gid ) { int fromfd, tofd = -1, cc, wc, exists; char buf[BUFSIZ], *bp; struct stat sb, tosb; struct utimbuf utb; exists = (lstat(toname, &tosb) == 0); fromfd = open(name, O_RDONLY); if (fromfd < 0 || fstat(fromfd, &sb) < 0) fail("cannot access %s", name); if (exists) { if (S_ISREG(tosb.st_mode)) { /* See if we can open it. This is more reliable than 'access'. */ tofd = open(toname, O_CREAT | O_WRONLY, 0666); } if (tofd < 0) { (void) (S_ISDIR(tosb.st_mode) ? rmdir : unlink)(toname); } } if (tofd < 0) { tofd = open(toname, O_CREAT | O_WRONLY, 0666); if (tofd < 0) fail("cannot create %s", toname); } bp = buf; while ((cc = read(fromfd, bp, sizeof buf)) > 0) { while ((wc = write(tofd, bp, (unsigned int)cc)) > 0) { if ((cc -= wc) == 0) break; bp += wc; } if (wc < 0) fail("cannot write to %s", toname); } if (cc < 0) fail("cannot read from %s", name); if (ftruncate(tofd, sb.st_size) < 0) fail("cannot truncate %s", toname); #if !defined(VMS) if (dotimes) { utb.actime = sb.st_atime; utb.modtime = sb.st_mtime; if (utime(toname, &utb) < 0) fail("cannot set times of %s", toname); } #ifdef HAVE_FCHMOD if (fchmod(tofd, mode) < 0) #else if (chmod(toname, mode) < 0) #endif fail("cannot change mode of %s", toname); #endif if ((owner || group) && fchown(tofd, uid, gid) < 0) fail("cannot change owner of %s", toname); /* Must check for delayed (NFS) write errors on close. */ if (close(tofd) < 0) fail("cannot write to %s", toname); close(fromfd); #if defined(VMS) if (chmod(toname, (mode & (S_IREAD | S_IWRITE))) < 0) fail("cannot change mode of %s", toname); if (dotimes) { utb.actime = sb.st_atime; utb.modtime = sb.st_mtime; if (utime(toname, &utb) < 0) fail("cannot set times of %s", toname); } #endif } static void copydir( char *from, char *to, mode_t mode, char *group, char *owner, int dotimes, uid_t uid, gid_t gid) { DIR *dir; struct dirent *ep; struct stat sb; char *base, *destdir, *direntry, *destentry; base = xbasename(from); /* create destination directory */ destdir = xmalloc((unsigned int)(strlen(to) + 1 + strlen(base) + 1)); sprintf(destdir, "%s%s%s", to, _DIRECTORY_SEPARATOR, base); if (mkdirs(destdir, mode) != 0) { fail("cannot make directory %s\n", destdir); free(destdir); return; } if (!(dir = opendir(from))) { fail("cannot open directory %s\n", from); free(destdir); return; } direntry = xmalloc((unsigned int)PATH_MAX); destentry = xmalloc((unsigned int)PATH_MAX); while ((ep = readdir(dir))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; sprintf(direntry, "%s/%s", from, ep->d_name); sprintf(destentry, "%s%s%s", destdir, _DIRECTORY_SEPARATOR, ep->d_name); if (stat(direntry, &sb) == 0 && S_ISDIR(sb.st_mode)) copydir( direntry, destdir, mode, group, owner, dotimes, uid, gid ); else copyfile( direntry, destentry, mode, group, owner, dotimes, uid, gid ); } free(destdir); free(direntry); free(destentry); closedir(dir); } int main(int argc, char **argv) { int onlydir, dodir, dolink, dorelsymlink, dotimes, opt, len, lplen, tdlen, bnlen, exists; mode_t mode = 0755; char *linkprefix, *owner, *group, *cp, *cwd, *todir, *toname, *name, *base, *linkname, buf[BUFSIZ]; uid_t uid; gid_t gid; struct stat sb, tosb, fromsb; program = argv[0]; cwd = linkname = linkprefix = owner = group = 0; onlydir = dodir = dolink = dorelsymlink = dotimes = lplen = 0; while ((opt = getopt(argc, argv, "C:DdlL:Rm:o:g:t")) != EOF) { switch (opt) { case 'C': cwd = optarg; break; case 'D': onlydir = 1; break; case 'd': dodir = 1; break; case 'L': linkprefix = optarg; lplen = strlen(linkprefix); dolink = 1; break; case 'R': dolink = dorelsymlink = 1; break; case 'm': mode = strtoul(optarg, &cp, 8); if (mode == 0 && cp == optarg) usage(); break; case 'o': owner = optarg; break; case 'g': group = optarg; break; case 't': dotimes = 1; break; default: usage(); } } argc -= optind; argv += optind; if (argc < 2 - onlydir) usage(); todir = argv[argc-1]; if ((stat(todir, &sb) < 0 || !S_ISDIR(sb.st_mode)) && mkdirs(todir, 0777) < 0) { fail("cannot make directory %s", todir); } if (onlydir) return 0; if (!cwd) { #ifndef NEEDS_GETCWD #ifndef GETCWD_CANT_MALLOC cwd = getcwd(0, PATH_MAX); #else cwd = malloc(PATH_MAX + 1); cwd = getcwd(cwd, PATH_MAX); #endif #else cwd = malloc(PATH_MAX + 1); cwd = getwd(cwd); #endif } xchdir(todir); #ifndef NEEDS_GETCWD #ifndef GETCWD_CANT_MALLOC todir = getcwd(0, PATH_MAX); #else todir = malloc(PATH_MAX + 1); todir = getcwd(todir, PATH_MAX); #endif #else todir = malloc(PATH_MAX + 1); todir = getwd(todir); #endif tdlen = strlen(todir); xchdir(cwd); tdlen = strlen(todir); uid = owner ? touid(owner) : (uid_t)(-1); gid = group ? togid(group) : (gid_t)(-1); while (--argc > 0) { name = *argv++; len = strlen(name); base = xbasename(name); bnlen = strlen(base); toname = xmalloc((unsigned int)(tdlen + 1 + bnlen + 1)); sprintf(toname, "%s%s%s", todir, _DIRECTORY_SEPARATOR, base); exists = (lstat(toname, &tosb) == 0); if (dodir) { /* -d means create a directory, always */ if (exists && !S_ISDIR(tosb.st_mode)) { (void) unlink(toname); exists = 0; } if (!exists && mkdir(toname, mode) < 0) fail("cannot make directory %s", toname); if ((owner || group) && chown(toname, uid, gid) < 0) fail("cannot change owner of %s", toname); } else if (dolink) { if (access(name, R_OK) != 0) { fail("cannot access %s", name); } if (*name == '/') { /* source is absolute pathname, link to it directly */ linkname = 0; } else { if (linkprefix) { /* -L prefixes names with a $cwd arg. */ len += lplen + 1; linkname = xmalloc((unsigned int)(len + 1)); sprintf(linkname, "%s/%s", linkprefix, name); } else if (dorelsymlink) { /* Symlink the relative path from todir to source name. */ linkname = xmalloc(PATH_MAX); if (*todir == '/') { /* todir is absolute: skip over common prefix. */ lplen = relatepaths(todir, cwd, linkname); strcpy(linkname + lplen, name); } else { /* todir is named by a relative path: reverse it. */ reversepath(todir, name, len, linkname); xchdir(cwd); } len = strlen(linkname); } name = linkname; } /* Check for a pre-existing symlink with identical content. */ if (exists && (!S_ISLNK(tosb.st_mode) || readlink(toname, buf, sizeof buf) != len || strncmp(buf, name, (unsigned int)len) != 0 || ((stat(name, &fromsb) == 0) && (fromsb.st_mtime > tosb.st_mtime) ))) { (void) (S_ISDIR(tosb.st_mode) ? rmdir : unlink)(toname); exists = 0; } if (!exists && symlink(name, toname) < 0) fail("cannot make symbolic link %s", toname); #ifdef HAVE_LCHOWN if ((owner || group) && lchown(toname, uid, gid) < 0) fail("cannot change owner of %s", toname); #endif if (linkname) { free(linkname); linkname = 0; } } else { /* Copy from name to toname, which might be the same file. */ if( stat(name, &sb) == 0 && S_IFDIR & sb.st_mode ) { /* then is directory: must explicitly create destination dir */ /* and manually copy files over */ copydir( name, todir, mode, group, owner, dotimes, uid, gid ); } else { copyfile(name, toname, mode, group, owner, dotimes, uid, gid); } } free(toname); } free(cwd); free(todir); return 0; }