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458 lines
10 KiB
C
458 lines
10 KiB
C
/*
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* Copyright 1996-1997 Devin Reade <gdr@trenco.gno.org>.
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* All rights reserved.
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*
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* For copying and distribution information, see the file "COPYING"
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* accompanying this file.
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*
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* $Id: inst.c,v 1.5 1998/04/24 00:54:03 gdr-ftp Exp $
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*/
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#define VERSION "1.2"
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#define EMAIL "<gdr@trenco.gno.org>"
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#define __USE_DYNAMIC_GSSTRING__
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#include <sys/types.h>
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#include <types.h>
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#include <sys/stat.h>
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#include <gno/gno.h>
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#include <stdio.h>
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#include <errno.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <string.h>
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#include <unistd.h>
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#include <orca.h>
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#include <gsos.h>
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#include <err.h>
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#include <gno/contrib.h>
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/* actions */
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#define ACTION_CHANGE_MODE 0x0001
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#define ACTION_CHANGE_OWNER 0x0002
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#define ACTION_CHANGE_GROUP 0x0004
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/* permissions */
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#define S_USER 0700
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#define S_GROUP 0070
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#define S_OTHER 0007
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#define S_ALL 0777
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#define S_READ 0444
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#define S_WRITE 0222
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#define S_EXECUTE 0111
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char *versionMsg = "Version %s by Devin Reade %s\n";
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int dFlag, verbose;
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/*
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* usage
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*
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* display usage information and exit
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*/
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void
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usage(void)
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{
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fputs("Usage: install [-cdhsvV] [-o owner] [-g group] [-m mode] ", stderr);
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fputs("source [...] dest\n\n", stderr);
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fputs("Options:\n", stderr);
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fputs("\t-c Ignored. (Backwards Unix compatibility)\n", stderr);
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fputs("\t-d Create the specified directories\n", stderr);
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fputs("\t-g group Specify group id (not implemented)\n", stderr);
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fputs("\t-h Show usage information and exit.\n", stderr);
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fputs("\t-m mode Specify (Unix) access mode\n", stderr);
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fputs("\t-o owner Specify owner id (not implemented)\n", stderr);
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fputs("\t-s Strip binary (not implemented)\n", stderr);
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fputs("\t-V Print each file as it is created (verbose).\n",
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stderr);
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fputs("\t-v Show version number\n\n", stderr);
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fprintf(stderr, versionMsg, VERSION, EMAIL);
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exit(1);
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}
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/*
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* translateMode
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*
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* set mode to the value corresponding to the permission bit string
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* <str>. If the first char of <str> is a digit, then it is assumed
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* to be an octal number. Otherwise it is assumed to be a string of
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* the form "ug+rx" (in the usual chmod(1) format).
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*
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* If these assumptions don't hold, then return non-zero. Returns
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* zero and sets mode on success. mode may be modified, even on
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* failure.
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*/
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static int
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translateMode(char *str, mode_t *mode)
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{
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mode_t who = 0L;
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mode_t perm = 0L;
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char *p, *q;
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/* octal number? */
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if (isdigit(*str)) {
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errno = 0;
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*mode = strtoul(str, NULL, 8);
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return errno;
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}
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/* it's not an absolute octal; treat as a string */
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if (((p = strchr(str, '=')) == NULL) &&
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((p = strchr(str, '+')) == NULL) &&
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((p = strchr(str, '-')) == NULL)) {
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errno = EINVAL;
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return errno;
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}
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/*
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* Since we use mode 0000 as our starting point, using '-' in the
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* symbolic mode is equivalent to setting the mode to 0000 (absolute).
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* Similarly, using '+' and '=' are equivalent.
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*
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* If '-' was specified, ignore the "ugo" and "rwx" parts of the string.
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*/
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if (*p == '-') {
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*mode = 0000;
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return 0;
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}
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*p++ = '\0';
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if (*str == '\0') {
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/* this should probably be derived from the umask */
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who |= S_ALL;
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} else {
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for (q = str; *q; q++) {
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switch (*q) {
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case 'u': who |= S_USER; break;
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case 'g': who |= S_GROUP; break;
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case 'o': who |= S_OTHER; break;
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case 'a': who |= S_ALL; break;
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default: errno = EINVAL; return errno;
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}
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}
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}
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if (*p == '\0') {
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/* this should probaby be taken from the umask */
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perm |= S_READ | S_WRITE | S_EXECUTE;
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} else {
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for (; *p; p++) {
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switch (*p) {
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case 'r': perm |= S_READ; break;
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case 'w': perm |= S_WRITE; break;
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case 'x': perm |= S_EXECUTE; break;
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case 's': perm |= S_EXECUTE; break;
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default: errno = EINVAL; return errno;
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}
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}
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}
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*mode = who & perm;
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return 0;
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}
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/*
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* mkdirs
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*
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* argv is assumed to be an array of argc pathnames. mkdirs will
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* create all the listed directories, including their parents if
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* necessary.
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*
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* Returns zero on success. Returns non-zero and prints a suitable
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* error message on failure.
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*/
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int
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mkdirs(int argc, char **argv)
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{
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static struct stat statbuf; /* reduce stack space */
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char *path, *p;
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size_t pathlen;
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int result = 0;
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int makeit; /* do we try a mkdir()? */
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int abortpath; /* we saw an error; don't both with rest of path */
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int i, j;
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int coloncount, isVolume;
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/* loop over each of the pathnames in the array */
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for (i = 0; i < argc; i++) {
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/* expand to a full pathname */
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if ((path = LC_ExpandPath(argv[i])) == NULL) {
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warn("couldn't expand the pathname of %s (ignored)", argv[i]);
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continue;
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}
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pathlen = strlen(path);
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/* is this pathname legal? */
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/* place a call to JudgeName() [custom] here */
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/* find out how many path components there are */
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coloncount = 0;
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p = path;
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while (*p) {
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if (*p == ':') {
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coloncount++;
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}
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p++;
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}
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/* skip the first part if it's a volume or device name */
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abortpath = 0;
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if ((*path == ':') || (*path == '.')) {
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j = 1;
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p = path + 1;
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if ((p = strchr(p, ':')) == NULL) {
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p = path + pathlen;
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abortpath = 1;
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} else {
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p++;
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}
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} else {
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j = 0;
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p = path;
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}
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/* create each component in path */
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for (; !abortpath && j < coloncount; j++) {
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if ((p = strchr(p, ':')) == NULL) {
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p = path + pathlen;
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}
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*p = '\0';
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if (stat(path, &statbuf) != 0) {
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if (errno == ENOENT) {
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makeit = 1;
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} else {
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warn("couldn't stat %s", path);
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makeit = 0;
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abortpath = 1;
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result = 1;
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}
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} else {
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makeit = 0;
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if (statbuf.st_mode & S_IFDIR == 0) {
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warnx("%s exists and is not a directory\n", path);
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abortpath = 1;
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result = 1;
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} /* else it exists and is a directory */
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}
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/* go ahead and create the directory */
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if (makeit) {
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if (verbose) {
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fprintf(stderr, "%s\n", path);
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}
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if (mkdir(path)) {
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warn("couldn't create directory %s", path);
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abortpath = 1;
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result = 1;
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}
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}
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/* reinstate the ':' that we "nulled-out" */
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if (p != path + pathlen) {
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*p++ = ':';
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}
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}
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}
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return result;
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}
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/*
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* copyfiles
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*
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* <argv> is assumed to be an array of <argc> filenames.
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*
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* This routine copies all but the last specified file to the directory
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* or filename specified by the last filename. If argc>2, the last element
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* _must_ be a directory.
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*
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* Returns zero on success. On failure, returns the last non-zero errno
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* and prints error conditions to stderr via the warn(3) routines.
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*
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* If the ACTION_CHANGE_MODE bit is set in <action>, chmod(2) is invoked
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* on the resulting file. ACTION_CHANGE_USER and ACTION_CHANGE_GROUP
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* are currently ignored.
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*/
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static int
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copyfiles(int argc, char **argv, int action, mode_t mode)
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{
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static FileInfoRecGS inforec;
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GSStringPtr src, dest, newname;
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int total, i, result, printWhen;
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unsigned short flags;
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#define PRINT_NEVER 0 /* used for printWhen (verbose mode) */
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#define PRINT_BEFORE 1
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#define PRINT_AFTER 2
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static const char *nodup = "couldn't duplicate %s file name \"%s\"";
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assert(argc > 1);
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/* initialization */
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result = 0;
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total = argc - 1;
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flags = LC_COPY_DATA | LC_COPY_REZ | LC_COPY_KEEPBUF;
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/* duplicate the destination name */
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if ((dest = __C2GSMALLOC(argv[total])) == NULL) {
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err(1, nodup, "destination", argv[total]);
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/*NOTREACHED*/
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}
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/*
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* If we're copying more than one file, make sure the last
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* is a directory.
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*/
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if (argc > 2) {
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inforec.pCount = 5;
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inforec.pathname = dest;
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GetFileInfoGS(&inforec);
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if (_toolErr != 0) {
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errno = _mapErr(_toolErr);
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err(1, "couldn't stat %s", dest->text);
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/*NOTREACHED*/
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}
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if ((inforec.storageType != 0x0D) &&
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(inforec.storageType != 0x0F)) {
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errno = ENOTDIR;
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errx(1, "%s is not a directory", dest->text);
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}
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}
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/* copy each file */
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if (verbose) {
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printWhen = (argc == 2) ? PRINT_BEFORE : PRINT_AFTER;
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} else {
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printWhen = PRINT_NEVER;
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}
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for (i=0; i<total; i++) {
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if (printWhen == PRINT_BEFORE) {
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fprintf(stderr, "%s\n", argv[total]);
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}
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if ((src = __C2GSMALLOC(argv[i])) == NULL) {
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err(1, nodup, "source", argv[i]);
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/*NOTREACHED*/
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}
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newname = LC_CopyFileGS(src, dest, flags);
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if (newname == NULL) {
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result = errno;
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warn("install of %s to %s failed", argv[i],
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argv[total]);
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} else {
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if (printWhen == PRINT_AFTER) {
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fprintf(stderr, "%s\n", newname->text);
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}
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if (action & ACTION_CHANGE_MODE) {
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if (chmod(newname->text, mode) < 0) {
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result = errno;
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warn("couldn't change %s to mode %o",
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newname->text, mode);
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}
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}
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}
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GIfree(src);
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}
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GIfree(dest);
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return result;
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}
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/*
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* obvious ...
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*/
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int
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main(int argc, char **argv)
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{
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mode_t newmode;
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int c, nfiles;
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int action = 0;
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__REPORT_STACK();
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if (needsgno() == 0) {
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errx(1, "requires GNO");
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}
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/* initialize */
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dFlag = 0;
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newmode = 0L;
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/* parse command line */
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while ((c = getopt(argc, argv, "cdg:hm:o:svV")) != EOF) {
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switch (c) {
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case 'v':
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errx(1, versionMsg, VERSION, EMAIL);
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/*NOTREACHED*/
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break;
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case 'm':
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action |= ACTION_CHANGE_MODE;
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if (translateMode(optarg, &newmode)) {
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usage();
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}
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break;
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case 'V':
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verbose=1;
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break;
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case 'd': dFlag++;
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case 'c': /* not implemented */
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case 'g': /* not implemented */
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case 'o': /* not implemented */
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case 's': /* not implemented */
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break;
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case 'h':
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default: usage();
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}
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}
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nfiles = argc - optind;
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#if 1
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if (nfiles < (dFlag ? 1 : 2)) {
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usage();
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}
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c = 0; /* using c as a temp variable */
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BeginSessionGS(&c);
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if (_toolErr) {
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errno = _mapErr(_toolErr);
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err(EXIT_FAILURE, "BeginSessionGS failed (0x%x)", _toolErr);
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}
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if (dFlag) {
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c = mkdirs(nfiles, &argv[optind]);
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} else {
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/* ignore new user and group for now */
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c = copyfiles(nfiles, &argv[optind], action, newmode);
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}
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action = 0; /* using action as a temp variable */
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EndSessionGS(&action);
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if (_toolErr) {
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errno = _mapErr(_toolErr);
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err(EXIT_FAILURE, "EndSessionGS failed (0x%x)", _toolErr);
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}
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#else
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if (dFlag) {
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if (nfiles < 1) {
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usage();
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}
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c = mkdirs(nfiles, &argv[optind]);
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} else {
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if (nfiles < 2) {
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usage();
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}
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/* ignore new user and group for now */
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c = copyfiles(nfiles, &argv[optind], action, newmode);
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}
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#endif
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return c;
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}
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