diff options
Diffstat (limited to 'dirs.c')
| -rw-r--r-- | dirs.c | 230 |
1 files changed, 230 insertions, 0 deletions
@@ -0,0 +1,230 @@ +/* This file is part of "reprepro" + * Copyright (C) 2003 Bernhard R. Link + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02111-1301 USA + */ +#include <config.h> + +#include <errno.h> +#include <assert.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include "error.h" +#include "strlist.h" +#include "dirs.h" +#include "names.h" + +/* create directory dirname. */ +retvalue dirs_create(const char *dirname) { + int ret, e; + + ret = mkdir(dirname, 0775); + if (ret == 0) { + if (verbose > 1) + printf("Created directory \"%s\"\n", dirname); + return RET_OK; + } else if (ret < 0 && (e = errno) != EEXIST) { + fprintf(stderr, "Error %d creating directory \"%s\": %s\n", + e, dirname, strerror(e)); + return RET_ERROR; + } + return RET_NOTHING; +} + +/* create recursively all parent directories before the last '/' */ +retvalue dirs_make_parent(const char *filename) { + const char *p; + char *h; + int i; + retvalue r; + + for (p = filename+1, i = 1 ; *p != '\0' ; p++, i++) { + if (*p == '/') { + h = strndup(filename, i); + if (FAILEDTOALLOC(h)) + return RET_ERROR_OOM; + r = dirs_create(h); + if (RET_WAS_ERROR(r)) { + free(h); + return r; + } + free(h); + } + } + return RET_OK; +} + +/* create dirname and any '/'-separated part of it */ +retvalue dirs_make_recursive(const char *directory) { + retvalue r, result; + + if (interrupted()) { + return RET_ERROR_INTERRUPTED; + } + r = dirs_make_parent(directory); + result = dirs_create(directory); + RET_UPDATE(result, r); + return result; +} + +/* create directory and return the number of created directoried */ +retvalue dir_create_needed(const char *directory, int *createddepth) { + retvalue r; + int ret; + size_t len = strlen(directory); + int check, depth = 0; + char *this; + int e; + + if (interrupted()) { + return RET_ERROR_INTERRUPTED; + } + while (len > 0 && directory[len-1] == '/') + len--; + while (len > 0) { + this = strndup(directory, len); + if (FAILEDTOALLOC(this)) + return RET_ERROR_OOM; + ret = mkdir(this, 0777); + e = errno; + if (ret == 0) { + if (verbose > 1) + printf("Created directory \"%s\"\n", this); + } else if (e == EEXIST) { + free(this); + break; + /* normally ENOENT should be the only problem, + * but check the others to be nice to annoying filesystems */ + } else if (e != ENOENT && e != EACCES && e != EPERM) { + fprintf(stderr, +"Cannot create directory \"%s\": %s(%d)\n", + this, strerror(e), e); + free(this); + return RET_ERRNO(e); + } + free(this); + depth++; + while (len > 0 && directory[len-1] != '/') + len--; + while (len > 0 && directory[len-1] == '/') + len--; + } + check = depth; + while (directory[len] == '/') + len++; + while (directory[len] != '\0') { + while (directory[len] != '\0' && directory[len] != '/') + len++; + this = strndup(directory, len); + if (FAILEDTOALLOC(this)) + return RET_ERROR_OOM; + r = dirs_create(this); + free(this); + if (RET_WAS_ERROR(r)) + return r; + // TODO: if we get RET_NOTHING here, reduce depth? + check--; + while (directory[len] == '/') + len++; + } + assert(check == 0); + *createddepth = depth; + return RET_OK; +} + +void dir_remove_new(const char *directory, int created) { + size_t len = strlen(directory); + char *this; + int ret; + + while (len > 0 && directory[len-1] == '/') + len--; + while (created > 0 && len > 0) { + this = strndup(directory, len); + if (FAILEDTOALLOC(this)) + return; + ret = rmdir(this); + if (ret == 0) { + if (verbose > 1) + printf( +"Removed empty directory \"%s\"\n", + this); + } else { + int e = errno; + if (e != ENOTEMPTY) { + fprintf(stderr, +"Error removing directory \"%s\": %s(%d)\n", + this, strerror(e), e); + } + free(this); + return; + } + free(this); + created--; + while (len > 0 && directory[len-1] != '/') + len--; + while (len > 0 && directory[len-1] == '/') + len--; + } + return; +} + +retvalue dirs_getdirectory(const char *filename, char **directory) { + size_t len; + + assert (filename != NULL && *filename != '\0'); + + len = strlen(filename); + while (len > 1 && filename[len-1] == '/') { + len--; + } + while (len > 0 && filename[len-1] != '/') { + len--; + } + if (len == 0) { + *directory = strdup("."); + } else { + if (len == 1) + *directory = strdup("/"); + else + *directory = strndup(filename, len-1); + } + if (FAILEDTOALLOC(*directory)) + return RET_ERROR_OOM; + else + return RET_OK; + +} +const char *dirs_basename(const char *filename) { + const char *bn; + + bn = strrchr(filename, '/'); + if (bn == NULL) + return filename; + // not really suited for the basename of directories, + // things like /bla/blub/ will give empty string... + return bn+1; +} + +bool isdir(const char *fullfilename) { + struct stat s; + int i; + + assert(fullfilename != NULL); + i = stat(fullfilename, &s); + return i == 0 && S_ISDIR(s.st_mode); +} |