diff options
Diffstat (limited to 'usr.sbin/pkg_install/add/extract.c')
| -rw-r--r-- | usr.sbin/pkg_install/add/extract.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/usr.sbin/pkg_install/add/extract.c b/usr.sbin/pkg_install/add/extract.c new file mode 100644 index 00000000000..605bfafbbd0 --- /dev/null +++ b/usr.sbin/pkg_install/add/extract.c @@ -0,0 +1,186 @@ +# $OpenBSD: extract.c,v 1.1 1996/06/04 07:56:03 niklas Exp $ +#ifndef lint +static const char *rcsid = "$OpenBSD: extract.c,v 1.1 1996/06/04 07:56:03 niklas Exp $"; +#endif + +/* + * FreeBSD install - a package for the installation and maintainance + * of non-core utilities. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * Jordan K. Hubbard + * 18 July 1993 + * + * This is the package extraction code for the add module. + * + */ + +#include "lib.h" +#include "add.h" + + +#define STARTSTRING "tar cf -" +#define TOOBIG(str) ((strlen(str) + 6 + strlen(home) + where_count > maxargs) \ + || (strlen(str) + 6 + strlen(home) + perm_count > maxargs)) + +#define PUSHOUT(todir) /* push out string */ \ + if (strlen(where_args) > sizeof(STARTSTRING)-1) { \ + strcat(where_args, "|tar xf - -C "); \ + strcat(where_args, todir); \ + if (system(where_args)) \ + barf("can't invoke tar pipeline"); \ + strcpy(where_args, STARTSTRING); \ + where_count = sizeof(STARTSTRING)-1; \ + } \ + if (perm_count) { \ + if (!isdir(todir)) apply_perms(todir, perm_args); \ + perm_args[0] = 0;\ + perm_count = 0; \ + } + +void +extract_plist(char *home, Package *pkg) +{ + PackingList p = pkg->head; + char *last_file; + char *where_args, *perm_args, *last_chdir; + int maxargs, where_count = 0, perm_count = 0, add_count; + + maxargs = sysconf(_SC_ARG_MAX); + maxargs -= 64; /* some slop for the tar cmd text, + and sh -c */ + where_args = malloc(maxargs); + if (!where_args) + barf("can't get argument list space"); + perm_args = malloc(maxargs); + if (!perm_args) + barf("can't get argument list space"); + + strcpy(where_args, STARTSTRING); + where_count = sizeof(STARTSTRING)-1; + perm_args[0] = 0; + + last_chdir = 0; + + /* Reset the world */ + Owner = NULL; + Group = NULL; + Mode = NULL; + last_file = NULL; + Directory = home; + + /* Do it */ + while (p) { + char cmd[FILENAME_MAX]; + + switch(p->type) { + case PLIST_NAME: + PkgName = p->name; + if (Verbose) + printf("extract: Package name is %s\n", p->name); + break; + + case PLIST_FILE: + last_file = p->name; + if (Verbose) + printf("extract: %s/%s\n", Directory, p->name); + if (!Fake) { + char try[FILENAME_MAX]; + + /* first try to rename it into place */ + sprintf(try, "%s/%s", Directory, p->name); + if (rename(p->name, try) == 0) { + /* try to add to list of perms to be changed, + and run in bulk. */ + add_count = snprintf(&perm_args[perm_count], + maxargs - perm_count, + "%s ", p->name); + if (add_count > maxargs - perm_count) + barf("oops, miscounted strings!"); + perm_count += add_count; + if (p->name[0] == '/') { + PUSHOUT(Directory); + } + } else { + /* rename failed, try copying with a big tar command */ + if (p->name[0] == '/' || + TOOBIG(p->name) || + last_chdir != Directory) { + PUSHOUT(last_chdir); + last_chdir = Directory; + } + add_count = snprintf(&where_args[where_count], + maxargs - where_count, + " %s", p->name); + if (add_count > maxargs - where_count) + barf("oops, miscounted strings!"); + where_count += add_count; + add_count = snprintf(&perm_args[perm_count], + maxargs - perm_count, + "%s ", p->name); + if (add_count > maxargs - perm_count) + barf("oops, miscounted strings!"); + perm_count += add_count; + if (p->name[0] == '/') { + PUSHOUT(Directory); + } + } + } + break; + + case PLIST_CWD: + if (Verbose) + printf("extract: CWD to %s\n", p->name); + PUSHOUT(Directory); + if (strcmp(p->name, ".")) { + if (!Fake && make_hierarchy(p->name) == FAIL) + barf("Unable make directory '%s'.", p->name); + Directory = p->name; + } + else + Directory = home; + break; + + case PLIST_CMD: + format_cmd(cmd, p->name, Directory, last_file); + PUSHOUT(Directory); + if (Verbose) + printf("extract: execute '%s'\n", cmd); + if (!Fake && system(cmd)) + whinge("Command '%s' failed.", cmd); + break; + + case PLIST_CHMOD: + PUSHOUT(Directory); + Mode = p->name; + break; + + case PLIST_CHOWN: + PUSHOUT(Directory); + Owner = p->name; + break; + + case PLIST_CHGRP: + PUSHOUT(Directory); + Group = p->name; + break; + + case PLIST_COMMENT: + break; + + case PLIST_IGNORE: + p = p->next; + break; + } + p = p->next; + } + PUSHOUT(Directory); +} |