diff options
Diffstat (limited to 'config/nsinstall.c')
| -rw-r--r-- | config/nsinstall.c | 528 |
1 files changed, 283 insertions, 245 deletions
diff --git a/config/nsinstall.c b/config/nsinstall.c index 48041ea2..ee6a1115 100644 --- a/config/nsinstall.c +++ b/config/nsinstall.c @@ -45,7 +45,7 @@ #if defined(SCO) || defined(UNIXWARE) #if !defined(S_ISLNK) && defined(S_IFLNK) -#define S_ISLNK(a) (((a) & S_IFMT) == S_IFLNK) +#define S_ISLNK(a) (((a) & S_IFMT) == S_IFLNK) #endif #endif @@ -57,9 +57,9 @@ 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), ""); + "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); } @@ -70,23 +70,26 @@ mkdirs(char *path, mode_t mode) struct stat sb; int res; - while (*path == '/' && path[1] == '/') - path++; + while (*path == '/' && path[1] == '/') { + path++; + } for (cp = strrchr(path, '/'); cp && cp != path && cp[-1] == '/'; cp--) - ; + ; if (cp && cp != path) { - *cp = '\0'; - if ((stat(path, &sb) < 0 || !S_ISDIR(sb.st_mode)) && - mkdirs(path, mode) < 0) { - return -1; - } - *cp = '/'; + *cp = '\0'; + if ((stat(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; + if ((res != 0) && (errno == EEXIST)) { + return 0; + } + else { + return res; + } } static uid_t @@ -97,11 +100,13 @@ touid(char *owner) char *cp; pw = getpwnam(owner); - if (pw) - return pw->pw_uid; + if (pw) { + return pw->pw_uid; + } uid = strtol(owner, &cp, 0); - if (uid == 0 && cp == owner) - fail("cannot find uid for %s", owner); + if (uid == 0 && cp == owner) { + fail("cannot find uid for %s", owner); + } return uid; } @@ -113,11 +118,13 @@ togid(char *group) char *cp; gr = getgrnam(group); - if (gr) - return gr->gr_gid; + if (gr) { + return gr->gr_gid; + } gid = strtol(group, &cp, 0); - if (gid == 0 && cp == group) - fail("cannot find gid for %s", group); + if (gid == 0 && cp == group) { + fail("cannot find gid for %s", group); + } return gid; } @@ -137,65 +144,68 @@ main(int argc, char **argv) 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': - dolink = 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(); - } + switch (opt) { + case 'C': + cwd = optarg; + break; + case 'D': + onlydir = 1; + break; + case 'd': + dodir = 1; + break; + case 'l': + dolink = 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(); + 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); + mkdirs(todir, 0777) < 0) { + fail("cannot make directory %s", todir); + } + if (onlydir) { + return 0; } - if (onlydir) - return 0; if (!cwd) { #ifdef GETCWD_CAN_MALLOC - cwd = getcwd(0, PATH_MAX); + cwd = getcwd(0, PATH_MAX); #else - cwd = malloc(PATH_MAX + 1); - cwd = getcwd(cwd, PATH_MAX); + cwd = malloc(PATH_MAX + 1); + cwd = getcwd(cwd, PATH_MAX); #endif } xchdir(todir); @@ -212,120 +222,134 @@ main(int argc, char **argv) gid = group ? togid(group) : -1; while (--argc > 0) { - name = *argv++; - len = strlen(name); - base = xbasename(name); - bnlen = strlen(base); - toname = (char*)xmalloc(tdlen + 1 + bnlen + 1); - sprintf(toname, "%s/%s", todir, 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 (*name == '/') { - /* source is absolute pathname, link to it directly */ - linkname = 0; - } else { - if (linkprefix) { - /* -L implies -l and prefixes names with a $cwd arg. */ - len += lplen + 1; - linkname = (char*)xmalloc(len + 1); - sprintf(linkname, "%s/%s", linkprefix, name); - } else if (dorelsymlink) { - /* Symlink the relative path from todir to source name. */ - linkname = (char*)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, len) != 0)) { - (void) (S_ISDIR(tosb.st_mode) ? rmdir : unlink)(toname); - exists = 0; - } - if (!exists && symlink(name, toname) < 0) - fail("cannot make symbolic link %s", toname); + name = *argv++; + len = strlen(name); + base = xbasename(name); + bnlen = strlen(base); + toname = (char*)xmalloc(tdlen + 1 + bnlen + 1); + sprintf(toname, "%s/%s", todir, 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 (*name == '/') { + /* source is absolute pathname, link to it directly */ + linkname = 0; + } else { + if (linkprefix) { + /* -L implies -l and prefixes names with a $cwd arg. */ + len += lplen + 1; + linkname = (char*)xmalloc(len + 1); + sprintf(linkname, "%s/%s", linkprefix, name); + } else if (dorelsymlink) { + /* Symlink the relative path from todir to source name. */ + linkname = (char*)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, len) != 0)) { + (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); + 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. */ - fromfd = open(name, O_RDONLY); - if (fromfd < 0 || fstat(fromfd, &sb) < 0) - fail("cannot access %s", name); - if (exists && (!S_ISREG(tosb.st_mode) || access(toname, W_OK) < 0)) - (void) (S_ISDIR(tosb.st_mode) ? rmdir : unlink)(toname); - 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, 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 (dotimes) { - utb.actime = sb.st_atime; - utb.modtime = sb.st_mtime; - if (utime(toname, &utb) < 0) - fail("cannot set times of %s", toname); - } + if (linkname) { + free(linkname); + linkname = 0; + } + } else { + /* Copy from name to toname, which might be the same file. */ + fromfd = open(name, O_RDONLY); + if (fromfd < 0 || fstat(fromfd, &sb) < 0) { + fail("cannot access %s", name); + } + if (exists && (!S_ISREG(tosb.st_mode) || access(toname, W_OK) < 0)) { + (void) (S_ISDIR(tosb.st_mode) ? rmdir : unlink)(toname); + } + 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, 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 (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) + if (fchmod(tofd, mode) < 0) #else - if (chmod(toname, mode) < 0) + if (chmod(toname, mode) < 0) #endif - fail("cannot change mode of %s", toname); - 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); - } - - free(toname); + fail("cannot change mode of %s", toname); + 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); + } + + free(toname); } free(cwd); @@ -359,10 +383,10 @@ fail(char *format, ...) if (error) #ifdef USE_REENTRANT_LIBC - R_STRERROR_R(errno); - fprintf(stderr, ": %s", r_strerror_r); + R_STRERROR_R(errno); + fprintf(stderr, ": %s", r_strerror_r); #else - fprintf(stderr, ": %s", strerror(errno)); + fprintf(stderr, ": %s", strerror(errno)); #endif putc('\n', stderr); @@ -372,18 +396,20 @@ fail(char *format, ...) char * getcomponent(char *path, char *name) { - if (*path == '\0') - return 0; + if (*path == '\0') { + return 0; + } if (*path == '/') { - *name++ = '/'; + *name++ = '/'; } else { - do { - *name++ = *path++; - } while (*path != '/' && *path != '\0'); + do { + *name++ = *path++; + } while (*path != '/' && *path != '\0'); } *name = '\0'; - while (*path == '/') - path++; + while (*path == '/') { + path++; + } return path; } @@ -391,14 +417,14 @@ getcomponent(char *path, char *name) /* Sigh. The static buffer in Unixware's readdir is too small. */ struct dirent * readdir(DIR *d) { - static struct dirent *buf = NULL; + static struct dirent *buf = NULL; #define MAX_PATH_LEN 1024 - if(buf == NULL) - buf = (struct dirent *) malloc(sizeof(struct dirent) + MAX_PATH_LEN) -; - return(readdir_r(d, buf)); + if(buf == NULL) + buf = (struct dirent *) malloc(sizeof(struct dirent) + MAX_PATH_LEN) + ; + return(readdir_r(d, buf)); } #endif @@ -410,13 +436,16 @@ ino2name(ino_t ino, char *dir) char *name; dp = opendir(".."); - if (!dp) - fail("cannot read parent directory"); + if (!dp) { + fail("cannot read parent directory"); + } for (;;) { - if (!(ep = readdir(dp))) - fail("cannot find current directory"); - if (ep->d_ino == ino) - break; + if (!(ep = readdir(dp))) { + fail("cannot find current directory"); + } + if (ep->d_ino == ino) { + break; + } } name = xstrdup(ep->d_name); closedir(dp); @@ -427,8 +456,9 @@ void * xmalloc(size_t size) { void *p = malloc(size); - if (!p) - fail("cannot allocate %u bytes", size); + if (!p) { + fail("cannot allocate %u bytes", size); + } return p; } @@ -443,17 +473,21 @@ xbasename(char *path) { char *cp; - while ((cp = strrchr(path, '/')) && cp[1] == '\0') - *cp = '\0'; - if (!cp) return path; + while ((cp = strrchr(path, '/')) && cp[1] == '\0') { + *cp = '\0'; + } + if (!cp) { + return path; + } return cp + 1; } void xchdir(char *dir) { - if (chdir(dir) < 0) - fail("cannot change directory to %s", dir); + if (chdir(dir) < 0) { + fail("cannot change directory to %s", dir); + } } int @@ -465,27 +499,29 @@ relatepaths(char *from, char *to, char *outpath) assert(*from == '/' && *to == '/'); for (cp = to, cp2 = from; *cp == *cp2; cp++, cp2++) - if (*cp == '\0') - break; - while (cp[-1] != '/') - cp--, cp2--; + if (*cp == '\0') { + break; + } + while (cp[-1] != '/') { + cp--, cp2--; + } if (cp - 1 == to) { - /* closest common ancestor is /, so use full pathname */ - len = strlen(strcpy(outpath, to)); - if (outpath[len] != '/') { - outpath[len++] = '/'; - outpath[len] = '\0'; - } + /* closest common ancestor is /, so use full pathname */ + len = strlen(strcpy(outpath, to)); + if (outpath[len] != '/') { + outpath[len++] = '/'; + outpath[len] = '\0'; + } } else { - len = 0; - while ((cp2 = getcomponent(cp2, buf)) != 0) { - strcpy(outpath + len, "../"); - len += 3; - } - while ((cp = getcomponent(cp, buf)) != 0) { - sprintf(outpath + len, "%s/", buf); - len += strlen(outpath + len); - } + len = 0; + while ((cp2 = getcomponent(cp2, buf)) != 0) { + strcpy(outpath + len, "../"); + len += 3; + } + while ((cp = getcomponent(cp, buf)) != 0) { + sprintf(outpath + len, "%s/", buf); + len += strlen(outpath + len); + } } return len; } @@ -500,23 +536,25 @@ reversepath(char *inpath, char *name, int len, char *outpath) cp = strcpy(outpath + PATH_MAX - (len + 1), name); cp2 = inpath; while ((cp2 = getcomponent(cp2, buf)) != 0) { - if (strcmp(buf, ".") == 0) - continue; - if (strcmp(buf, "..") == 0) { - if (stat(".", &sb) < 0) - fail("cannot stat current directory"); - name = ino2name(sb.st_ino, ".."); - len = strlen(name); - cp -= len + 1; - strcpy(cp, name); - cp[len] = '/'; - free(name); - xchdir(".."); - } else { - cp -= 3; - memcpy(cp, "../", 3); - xchdir(buf); - } + if (strcmp(buf, ".") == 0) { + continue; + } + if (strcmp(buf, "..") == 0) { + if (stat(".", &sb) < 0) { + fail("cannot stat current directory"); + } + name = ino2name(sb.st_ino, ".."); + len = strlen(name); + cp -= len + 1; + strcpy(cp, name); + cp[len] = '/'; + free(name); + xchdir(".."); + } else { + cp -= 3; + memcpy(cp, "../", 3); + xchdir(buf); + } } strcpy(outpath, cp); } |