355 lines
7.2 KiB
C
355 lines
7.2 KiB
C
#ifndef lint
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static const char *rcsid = "$Id: plist.c,v 1.6 1994/05/25 06:27:24 jkh Exp $";
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#endif
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/*
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* FreeBSD install - a package for the installation and maintainance
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* of non-core utilities.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* Jordan K. Hubbard
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* 18 July 1993
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*
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* General packing list routines.
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*
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*/
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#include "lib.h"
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/* Add an item to a packing list */
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void
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add_plist(Package *p, plist_t type, char *arg)
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{
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PackingList tmp;
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tmp = new_plist_entry();
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tmp->name = copy_string(arg);
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tmp->type = type;
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if (!p->head)
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p->head = p->tail = tmp;
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else {
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tmp->prev = p->tail;
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p->tail->next = tmp;
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p->tail = tmp;
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}
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}
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void
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add_plist_top(Package *p, plist_t type, char *arg)
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{
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PackingList tmp;
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tmp = new_plist_entry();
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tmp->name = copy_string(arg);
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tmp->type = type;
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if (!p->head)
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p->head = p->tail = tmp;
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else {
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tmp->next = p->head;
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p->head->prev = tmp;
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p->head = tmp;
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}
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}
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/* Return the last (most recent) entry in a packing list */
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PackingList
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last_plist(Package *p)
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{
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return p->tail;
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}
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/* Mark all items in a packing list to prevent iteration over them */
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void
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mark_plist(Package *pkg)
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{
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PackingList p = pkg->head;
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while (p) {
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p->marked = TRUE;
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p = p->next;
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}
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}
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/* Find a given item in a packing list and, if so, return it (else NULL) */
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PackingList
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find_plist(Package *pkg, plist_t type)
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{
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PackingList p = pkg->head;
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while (p) {
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if (p->type == type)
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return p;
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p = p->next;
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}
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return NULL;
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}
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/*
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* Delete plist item 'type' in the list (if 'name' is non-null, match it
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* too.) If 'all' is set, delete all items, not just the first occurance.
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*/
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void
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delete_plist(Package *pkg, Boolean all, plist_t type, char *name)
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{
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PackingList p = pkg->head;
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while (p) {
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PackingList pnext = p->next;
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if (p->type == type && (!name || !strcmp(name, p->name))) {
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free(p->name);
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if (p->prev)
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p->prev->next = pnext;
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else
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pkg->head = pnext;
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if (pnext)
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pnext->prev = p->prev;
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else
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pkg->tail = p->prev;
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free(p);
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if (!all)
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return;
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p = pnext;
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}
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else
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p = p->next;
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}
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}
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/* Allocate a new packing list entry */
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PackingList
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new_plist_entry(void)
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{
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PackingList ret;
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ret = (PackingList)malloc(sizeof(struct _plist));
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bzero(ret, sizeof(struct _plist));
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return ret;
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}
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/* Free an entire packing list */
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void
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free_plist(Package *pkg)
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{
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PackingList p = pkg->head;
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while (p) {
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PackingList p1 = p->next;
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free(p->name);
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free(p);
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p = p1;
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}
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pkg->head = pkg->tail = NULL;
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}
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/*
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* For an ascii string denoting a plist command, return its code and
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* optionally its argument(s)
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*/
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int
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plist_cmd(char *s, char **arg)
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{
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char cmd[FILENAME_MAX + 20]; /* 20 == fudge for max cmd len */
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char *cp, *sp;
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strcpy(cmd, s);
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str_lowercase(cmd);
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cp = cmd;
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sp = s;
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while (*cp) {
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if (isspace(*cp)) {
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*cp = '\0';
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while (isspace(*sp)) /* Never sure if macro, increment later */
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++sp;
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break;
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}
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++cp, ++sp;
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}
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if (arg)
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*arg = sp;
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if (!strcmp(cmd, "cwd"))
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return PLIST_CWD;
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else if (!strcmp(cmd, "cd"))
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return PLIST_CWD;
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else if (!strcmp(cmd, "exec"))
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return PLIST_CMD;
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else if (!strcmp(cmd, "unexec"))
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return PLIST_UNEXEC;
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else if (!strcmp(cmd, "mode"))
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return PLIST_CHMOD;
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else if (!strcmp(cmd, "owner"))
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return PLIST_CHOWN;
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else if (!strcmp(cmd, "group"))
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return PLIST_CHGRP;
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else if (!strcmp(cmd, "comment"))
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return PLIST_COMMENT;
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else if (!strcmp(cmd, "ignore"))
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return PLIST_IGNORE;
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else if (!strcmp(cmd, "name"))
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return PLIST_NAME;
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else
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return FAIL;
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}
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/* Read a packing list from a file */
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void
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read_plist(Package *pkg, FILE *fp)
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{
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char *cp, pline[FILENAME_MAX];
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int cmd;
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while (fgets(pline, FILENAME_MAX, fp)) {
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int len = strlen(pline) - 1;
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while (isspace(pline[len]))
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pline[len--] = '\0';
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if (len <= 0)
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continue;
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cp = pline;
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if (pline[0] == CMD_CHAR) {
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cmd = plist_cmd(pline + 1, &cp);
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if (cmd == FAIL)
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barf("Bad command '%s'", pline);
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if (*cp == '\0')
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cp = NULL;
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}
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else
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cmd = PLIST_FILE;
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add_plist(pkg, cmd, cp);
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}
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}
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/* Write a packing list to a file, converting commands to ascii equivs */
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void
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write_plist(Package *pkg, FILE *fp)
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{
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PackingList plist = pkg->head;
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while (plist) {
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switch(plist->type) {
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case PLIST_FILE:
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fprintf(fp, "%s\n", plist->name);
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break;
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case PLIST_CWD:
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fprintf(fp, "%ccwd %s\n", CMD_CHAR, plist->name);
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break;
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case PLIST_CMD:
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fprintf(fp, "%cexec %s\n", CMD_CHAR, plist->name);
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break;
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case PLIST_UNEXEC:
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fprintf(fp, "%cunexec %s\n", CMD_CHAR, plist->name);
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break;
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case PLIST_CHMOD:
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fprintf(fp, "%cmode %s\n", CMD_CHAR,
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plist->name ? plist->name : "");
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break;
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case PLIST_CHOWN:
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fprintf(fp, "%cowner %s\n", CMD_CHAR,
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plist->name ? plist->name : "");
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break;
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case PLIST_CHGRP:
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fprintf(fp, "%cgroup %s\n", CMD_CHAR,
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plist->name ? plist->name : "");
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break;
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case PLIST_COMMENT:
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fprintf(fp, "%ccomment %s\n", CMD_CHAR, plist->name);
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break;
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case PLIST_IGNORE:
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fprintf(fp, "%cignore\n", CMD_CHAR);
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break;
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case PLIST_NAME:
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fprintf(fp, "%cname %s\n", CMD_CHAR, plist->name);
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break;
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default:
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barf("Unknown command type %d (%s)\n", plist->type, plist->name);
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break;
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}
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plist = plist->next;
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}
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}
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/* Delete the results of a package installation, not the packaging itself */
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void
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delete_package(Boolean ign_err, Package *pkg)
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{
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PackingList p = pkg->head;
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char *Where = ".", *last_file = "";
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while (p) {
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if (p->type == PLIST_CWD) {
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Where = p->name;
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if (Verbose)
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printf("(CWD to %s)\n", Where);
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}
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else if (p->type == PLIST_UNEXEC) {
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char cmd[FILENAME_MAX];
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format_cmd(cmd, p->name, Where, last_file);
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if (Verbose)
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printf("unexec command: %s\n", cmd);
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if (!Fake && system(cmd))
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whinge("unexec '%s' failed.", cmd);
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}
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else if (p->type == PLIST_IGNORE)
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p = p->next;
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else if (p->type == PLIST_FILE) {
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char full_name[FILENAME_MAX];
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sprintf(full_name, "%s/%s", Where, p->name);
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if (Verbose)
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printf("Delete: %s\n", full_name);
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if (!Fake && delete_hierarchy(full_name, ign_err))
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whinge("Unable to completely remove file '%s'", full_name);
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last_file = p->name;
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}
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p = p->next;
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}
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}
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/* Selectively delete a hierarchy */
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int
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delete_hierarchy(char *dir, Boolean ign_err)
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{
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char *cp1, *cp2;
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cp1 = cp2 = dir;
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if (vsystem("%s -r%s %s", REMOVE_CMD, (ign_err ? "f" : ""), dir))
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return 1;
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while (cp2) {
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if ((cp2 = rindex(cp1, '/')) != NULL)
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*cp2 = '\0';
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if (!isempty(dir))
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return 0;
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if (vsystem("%s %s", RMDIR_CMD, dir) && ign_err)
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return 1;
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/* Put it back */
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if (cp2) {
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*cp2 = '/';
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cp1 = cp2 - 1;
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}
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}
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return 0;
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}
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