diff options
Diffstat (limited to 'tools.c')
| -rw-r--r-- | tools.c | 77 |
1 files changed, 71 insertions, 6 deletions
@@ -4,7 +4,7 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: tools.c 1.10 2000/07/23 13:16:54 kls Exp $ + * $Id: tools.c 1.13 2000/07/29 18:41:45 kls Exp $ */ #define _GNU_SOURCE @@ -145,6 +145,51 @@ bool isnumber(const char *s) return true; } +#define DFCMD "df -m %s" + +uint FreeDiskSpaceMB(const char *Directory) +{ + //TODO Find a simpler way to determine the amount of free disk space! + uint Free = 0; + char *cmd = NULL; + asprintf(&cmd, DFCMD, Directory); + FILE *p = popen(cmd, "r"); + if (p) { + char *s; + while ((s = readline(p)) != NULL) { + if (*s == '/') { + uint available; + sscanf(s, "%*s %*d %*d %u", &available); + Free = available; + break; + } + } + pclose(p); + } + else + esyslog(LOG_ERR, "ERROR: can't open pipe for cmd '%s'", cmd); + delete cmd; + return Free; +} + +bool DirectoryOk(const char *DirName, bool LogErrors) +{ + struct stat ds; + if (stat(DirName, &ds) == 0) { + if (S_ISDIR(ds.st_mode)) { + if (access(DirName, R_OK | W_OK | X_OK) == 0) + return true; + else if (LogErrors) + esyslog(LOG_ERR, "ERROR: can't access %s", DirName); + } + else if (LogErrors) + esyslog(LOG_ERR, "ERROR: %s is not a directory", DirName); + } + else if (LogErrors) + LOG_ERROR_STR(DirName); + return false; +} + bool MakeDirs(const char *FileName, bool IsDirectory) { bool result = true; @@ -157,7 +202,7 @@ bool MakeDirs(const char *FileName, bool IsDirectory) *p = 0; struct stat fs; if (stat(s, &fs) != 0 || !S_ISDIR(fs.st_mode)) { - isyslog(LOG_INFO, "creating directory %s", s); + dsyslog(LOG_INFO, "creating directory %s", s); if (mkdir(s, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) == -1) { esyslog(LOG_ERR, "ERROR: %s: %s", s, strerror(errno)); result = false; @@ -173,7 +218,7 @@ bool MakeDirs(const char *FileName, bool IsDirectory) return result; } -bool RemoveFileOrDir(const char *FileName) +bool RemoveFileOrDir(const char *FileName, bool FollowSymlinks) { struct stat st; if (stat(FileName, &st) == 0) { @@ -185,23 +230,43 @@ bool RemoveFileOrDir(const char *FileName) if (strcmp(e->d_name, ".") && strcmp(e->d_name, "..")) { char *buffer; asprintf(&buffer, "%s/%s", FileName, e->d_name); + if (FollowSymlinks) { + int size = strlen(buffer) * 2; // should be large enough + char *l = new char[size]; + int n = readlink(buffer, l, size); + if (n < 0) { + if (errno != EINVAL) + LOG_ERROR_STR(buffer); + } + else if (n < size) { + l[n] = 0; + dsyslog(LOG_INFO, "removing %s", l); + if (remove(l) < 0) + LOG_ERROR_STR(l); + } + else + esyslog(LOG_ERR, "ERROR: symlink name length (%d) exceeded anticipated buffer size (%d)", n, size); + delete l; + } + dsyslog(LOG_INFO, "removing %s", buffer); if (remove(buffer) < 0) - esyslog(LOG_ERR, "ERROR: %s: %s", buffer, strerror(errno)); + LOG_ERROR_STR(buffer); delete buffer; } } closedir(d); } else { - esyslog(LOG_ERR, "ERROR: %s: %s", FileName, strerror(errno)); + LOG_ERROR_STR(FileName); return false; } } + dsyslog(LOG_INFO, "removing %s", FileName); if (remove(FileName) == 0) return true; } else - esyslog(LOG_ERR, "ERROR: %s: %s", FileName, strerror(errno)); + LOG_ERROR_STR(FileName); return false; } |