/* * Miscellaneous support routines.. * * $Id: misc.c,v 1.14 1996/01/14 21:48:57 phk Exp $ * * Copyright (c) 1995 * Jordan Hubbard. All rights reserved. * * 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, * verbatim and that no modifications are made prior to this * point in the file. * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Jordan Hubbard * for the FreeBSD Project. * 4. The name of Jordan Hubbard or the FreeBSD project may not be used to * endorse or promote products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ #include "sysinstall.h" #include #include #include #include #include #include #include #include #include #include #include #include #include /* Quick check to see if a file is readable */ Boolean file_readable(char *fname) { if (!access(fname, F_OK)) return TRUE; return FALSE; } /* Quick check to see if a file is executable */ Boolean file_executable(char *fname) { if (!access(fname, X_OK)) return TRUE; return FALSE; } /* Concatenate two strings into static storage */ char * string_concat(char *one, char *two) { static char tmp[FILENAME_MAX]; /* Yes, we're deliberately cavalier about not checking for overflow */ strcpy(tmp, one); strcat(tmp, two); return tmp; } /* Concatenate three strings into static storage */ char * string_concat3(char *one, char *two, char *three) { static char tmp[FILENAME_MAX]; /* Yes, we're deliberately cavalier about not checking for overflow */ strcpy(tmp, one); strcat(tmp, two); strcat(tmp, three); return tmp; } /* Clip the whitespace off the end of a string */ char * string_prune(char *str) { int len = str ? strlen(str) : 0; while (len && isspace(str[len - 1])) str[--len] = '\0'; return str; } /* run the whitespace off the front of a string */ char * string_skipwhite(char *str) { while (*str && isspace(*str)) ++str; return str; } /* copy optionally and allow second arg to be null */ char * string_copy(char *s1, char *s2) { if (!s1) return NULL; if (!s2) s1[0] = '\0'; else strcpy(s1, s2); return s1; } Boolean directory_exists(const char *dirname) { DIR *tptr; if (!dirname) return FALSE; if (!strlen(dirname)) return FALSE; tptr = opendir(dirname); if (!tptr) return (FALSE); closedir(tptr); return (TRUE); } char * pathBaseName(const char *path) { char *pt; char *ret = (char *)path; pt = strrchr(path,(int)'/'); if (pt != 0) /* if there is a slash */ { ret = ++pt; /* start the file after it */ } return(ret); } /* A free guaranteed to take NULL ptrs */ void safe_free(void *ptr) { if (ptr) free(ptr); } /* A malloc that checks errors */ void * safe_malloc(size_t size) { void *ptr; if (size <= 0) msgFatal("Invalid malloc size of %d!", size); ptr = malloc(size); if (!ptr) msgFatal("Out of memory!"); bzero(ptr, size); return ptr; } /* A realloc that checks errors */ void * safe_realloc(void *orig, size_t size) { void *ptr; if (size <= 0) msgFatal("Invalid realloc size of %d!", size); ptr = realloc(orig, size); if (!ptr) msgFatal("Out of memory!"); return ptr; } /* * These next routines are kind of specialized just for building string lists * for dialog_menu(). */ /* Add a string to an item list */ char ** item_add(char **list, char *item, int *curr, int *max) { if (*curr == *max) { *max += 20; list = (char **)realloc(list, sizeof(char *) * *max); } list[(*curr)++] = item; return list; } /* Add a pair of items to an item list (more the usual case) */ char ** item_add_pair(char **list, char *item1, char *item2, int *curr, int *max) { list = item_add(list, item1, curr, max); list = item_add(list, item2, curr, max); return list; } /* Toss the items out */ void items_free(char **list, int *curr, int *max) { safe_free(list); *curr = *max = 0; } int Mkdir(char *ipath, void *data) { struct stat sb; int final=0; char *p, *path; if (file_readable(ipath)) return RET_SUCCESS; path = strdup(ipath); if (isDebug()) msgDebug("mkdir(%s)\n", path); p = path; if (p[0] == '/') /* Skip leading '/'. */ ++p; for (;!final; ++p) { if (p[0] == '\0' || (p[0] == '/' && p[1] == '\0')) final++; else if (p[0] != '/') continue; *p = '\0'; if (stat(path, &sb)) { if (errno != ENOENT) { dialog_clear(); msgConfirm("Couldn't stat directory %s: %s", path, strerror(errno)); return RET_FAIL; } if (isDebug()) msgDebug("mkdir(%s..)\n", path); if (mkdir(path, S_IRWXU | S_IRWXG | S_IRWXO) < 0) { dialog_clear(); msgConfirm("Couldn't create directory %s: %s", path,strerror(errno)); return RET_FAIL; } } *p = '/'; } free(path); return RET_SUCCESS; } int Mount(char *mountp, void *dev) { struct ufs_args ufsargs; char device[80]; char mountpoint[FILENAME_MAX]; if (*((char *)dev) != '/') { sprintf(device, "/mnt/dev/%s", (char *)dev); sprintf(mountpoint, "/mnt%s", mountp); } else { strcpy(device, dev); strcpy(mountpoint, mountp); } memset(&ufsargs,0,sizeof ufsargs); if (Mkdir(mountpoint, NULL)) { dialog_clear(); msgConfirm("Unable to make directory mountpoint for %s!", mountpoint); return RET_FAIL; } if (isDebug()) msgDebug("mount %s %s\n", device, mountpoint); ufsargs.fspec = device; if (mount(MOUNT_UFS, mountpoint, MNT_ASYNC, (caddr_t)&ufsargs) == -1) { dialog_clear(); msgConfirm("Error mounting %s on %s : %s", device, mountpoint, strerror(errno)); return RET_FAIL; } return RET_SUCCESS; }