diff options
Diffstat (limited to 'libutil/op_file.c')
| -rw-r--r-- | libutil/op_file.c | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/libutil/op_file.c b/libutil/op_file.c deleted file mode 100644 index e3e6cb6..0000000 --- a/libutil/op_file.c +++ /dev/null @@ -1,185 +0,0 @@ -/** - * @file op_file.c - * Useful file management helpers - * - * @remark Copyright 2002 OProfile authors - * @remark Read the file COPYING - * - * @author John Levon - * @author Philippe Elie - */ - -#include <sys/stat.h> -#include <unistd.h> -#include <fcntl.h> -#include <dirent.h> -#include <fnmatch.h> -#include <stdlib.h> -#include <stdio.h> -#include <errno.h> -#include <string.h> -#include <limits.h> - -#include "op_file.h" -#include "op_libiberty.h" - -int op_file_readable(char const * file) -{ - struct stat st; - return !stat(file, &st) && S_ISREG(st.st_mode) && !access(file, R_OK); -} - - -time_t op_get_mtime(char const * file) -{ - struct stat st; - - if (stat(file, &st)) - return 0; - - return st.st_mtime; -} - - -int create_dir(char const * dir) -{ - if (mkdir(dir, 0755)) { - /* FIXME: Does not verify existing is a dir */ - if (errno == EEXIST) - return 0; - return errno; - } - - return 0; -} - - -int create_path(char const * path) -{ - int ret = 0; - - char * str = xstrdup(path); - - char * pos = str[0] == '/' ? str + 1 : str; - - for ( ; (pos = strchr(pos, '/')) != NULL; ++pos) { - *pos = '\0'; - ret = create_dir(str); - *pos = '/'; - if (ret) - break; - } - - free(str); - return ret; -} - - -inline static int is_dot_or_dotdot(char const * name) -{ - return name[0] == '.' && - (name[1] == '\0' || - (name[1] == '.' && name[2] == '\0')); -} - - -/* If non-null is returned, the caller is responsible for freeing - * the memory allocated for the return value. */ -static char * make_pathname_from_dirent(char const * basedir, - struct dirent * ent, - struct stat * st_buf) -{ - int name_len; - char * name; - name_len = strlen(basedir) + strlen("/") + strlen(ent->d_name) + 1; - name = xmalloc(name_len); - sprintf(name, "%s/%s", basedir, ent->d_name); - if (stat(name, st_buf) != 0) { - free(name); - name = NULL; - } - return name; -} - - -int get_matching_pathnames(void * name_list, get_pathname_callback getpathname, - char const * base_dir, char const * filter, - enum recursion_type recursion) -{ -/* The algorithm below depends on recursion type (of which there are 3) - * and whether the current dirent matches the filter. There are 6 possible - * different behaviors, which is why we define 6 case below in the switch - * statement of the algorithm. Actually, when the recursion type is - * MATCH_DIR_ONLY_RECURSION, the behavior is the same, whether or not the dir - * entry matches the filter. However, the behavior of the recursion types - * NO_RECURSION and MATCH_ANY_ENTRY_RECURSION do depend on the dir entry - * filter match, so for simplicity, we perform this match for all recursion - * types and logically OR the match result with the value of the passed - * recursion_type. - */ -#define NO_MATCH 0 -#define MATCH 1 - - DIR * dir; - struct dirent * ent; - struct stat stat_buffer; - int match; - char * name = NULL; - - if (!(dir = opendir(base_dir))) - return -1; - while ((ent = readdir(dir)) != 0) { - if (is_dot_or_dotdot(ent->d_name)) - continue; - if (fnmatch(filter, ent->d_name, 0) == 0) - match = 1; - else - match = 0; - - switch (recursion | match) { - case NO_RECURSION + NO_MATCH: - case MATCH_ANY_ENTRY_RECURSION + NO_MATCH: - // nothing to do but continue the loop - break; - case NO_RECURSION + MATCH: - getpathname(ent->d_name, name_list); - break; - case MATCH_ANY_ENTRY_RECURSION + MATCH: - name = make_pathname_from_dirent(base_dir, ent, - &stat_buffer); - if (name && S_ISDIR(stat_buffer.st_mode) && - !S_ISLNK(stat_buffer.st_mode)) { - get_matching_pathnames( - name_list, getpathname, - name, filter, recursion); - } else { - getpathname(name, name_list); - } - free(name); - break; - case MATCH_DIR_ONLY_RECURSION + NO_MATCH: - case MATCH_DIR_ONLY_RECURSION + MATCH: - name = make_pathname_from_dirent(base_dir, ent, - &stat_buffer); - if (name && S_ISDIR(stat_buffer.st_mode) && - !S_ISLNK(stat_buffer.st_mode)) { - /* Check if full directory name contains - * match to the filter; if so, add it to - * name_list and quit; else, recurse. - */ - if (!fnmatch(filter, name, 0)) { - getpathname(name, name_list); - } else { - get_matching_pathnames( - name_list, getpathname, - name, filter, recursion); - } - } - free(name); - break; - } - } - closedir(dir); - - return 0; -} |