1 /*- 2 * Copyright (c) 1990, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Hugh Smith at The University of Guelph. 7 * 8 * %sccs.include.redist.c% 9 */ 10 11 #ifndef lint 12 static char sccsid[] = "@(#)misc.c 8.4 (Berkeley) 04/27/95"; 13 #endif /* not lint */ 14 15 #include <sys/param.h> 16 17 #include <dirent.h> 18 #include <err.h> 19 #include <errno.h> 20 #include <signal.h> 21 #include <stdio.h> 22 #include <stdlib.h> 23 #include <string.h> 24 #include <unistd.h> 25 26 #include "archive.h" 27 #include "extern.h" 28 #include "pathnames.h" 29 30 char *tname = "temporary file"; /* temporary file "name" */ 31 32 int 33 tmp() 34 { 35 extern char *envtmp; 36 sigset_t set, oset; 37 static int first; 38 int fd; 39 char path[MAXPATHLEN]; 40 41 if (!first && !envtmp) { 42 envtmp = getenv("TMPDIR"); 43 first = 1; 44 } 45 46 if (envtmp) 47 (void)sprintf(path, "%s/%s", envtmp, _NAME_ARTMP); 48 else 49 strcpy(path, _PATH_ARTMP); 50 51 sigfillset(&set); 52 (void)sigprocmask(SIG_BLOCK, &set, &oset); 53 if ((fd = mkstemp(path)) == -1) 54 error(tname); 55 (void)unlink(path); 56 (void)sigprocmask(SIG_SETMASK, &oset, NULL); 57 return (fd); 58 } 59 60 /* 61 * files -- 62 * See if the current file matches any file in the argument list; if it 63 * does, remove it from the argument list. 64 */ 65 char * 66 files(argv) 67 char **argv; 68 { 69 char **list, *p; 70 71 for (list = argv; *list; ++list) 72 if (compare(*list)) { 73 p = *list; 74 for (; list[0] = list[1]; ++list) 75 continue; 76 return (p); 77 } 78 return (NULL); 79 } 80 81 void 82 orphans(argv) 83 char **argv; 84 { 85 86 for (; *argv; ++argv) 87 warnx("%s: not found in archive", *argv); 88 } 89 90 char * 91 rname(path) 92 char *path; 93 { 94 char *ind; 95 96 return ((ind = strrchr(path, '/')) ? ind + 1 : path); 97 } 98 99 int 100 compare(dest) 101 char *dest; 102 { 103 104 if (options & AR_TR) 105 return (!strncmp(chdr.name, rname(dest), OLDARMAXNAME)); 106 return (!strcmp(chdr.name, rname(dest))); 107 } 108 109 void 110 badfmt() 111 { 112 113 errno = EFTYPE; 114 err(1, "%s", archive); 115 } 116 117 void 118 error(name) 119 char *name; 120 { 121 122 err(1, "%s", name); 123 } 124