diff options
Diffstat (limited to 'tools.c')
| -rw-r--r-- | tools.c | 78 |
1 files changed, 48 insertions, 30 deletions
@@ -4,7 +4,7 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: tools.c 1.140 2008/01/13 11:26:30 kls Exp $ + * $Id: tools.c 1.143 2008/02/16 13:38:22 kls Exp $ */ #include "tools.h" @@ -267,9 +267,7 @@ bool isnumber(const char *s) cString AddDirectory(const char *DirName, const char *FileName) { - char *buf; - asprintf(&buf, "%s/%s", DirName && *DirName ? DirName : ".", FileName); - return cString(buf, true); + return cString::sprintf("%s/%s", DirName && *DirName ? DirName : ".", FileName); } cString itoa(int n) @@ -279,6 +277,21 @@ cString itoa(int n) return buf; } +bool EntriesOnSameFileSystem(const char *File1, const char *File2) +{ + struct statfs statFs; + if (statfs(File1, &statFs) == 0) { + fsid_t fsid1 = statFs.f_fsid; + if (statfs(File2, &statFs) == 0) + return memcmp(&statFs.f_fsid, &fsid1, sizeof(fsid1)) == 0; + else + LOG_ERROR_STR(File2); + } + else + LOG_ERROR_STR(File1); + return false; +} + int FreeDiskSpaceMB(const char *Directory, int *UsedMB) { if (UsedMB) @@ -352,15 +365,14 @@ bool RemoveFileOrDir(const char *FileName, bool FollowSymlinks) struct dirent *e; while ((e = d.Next()) != NULL) { if (strcmp(e->d_name, ".") && strcmp(e->d_name, "..")) { - char *buffer; - asprintf(&buffer, "%s/%s", FileName, e->d_name); + cString buffer = AddDirectory(FileName, e->d_name); if (FollowSymlinks) { int size = strlen(buffer) * 2; // should be large enough char *l = MALLOC(char, size); int n = readlink(buffer, l, size); if (n < 0) { if (errno != EINVAL) - LOG_ERROR_STR(buffer); + LOG_ERROR_STR(*buffer); } else if (n < size) { l[n] = 0; @@ -372,10 +384,9 @@ bool RemoveFileOrDir(const char *FileName, bool FollowSymlinks) esyslog("ERROR: symlink name length (%d) exceeded anticipated buffer size (%d)", n, size); free(l); } - dsyslog("removing %s", buffer); + dsyslog("removing %s", *buffer); if (remove(buffer) < 0) - LOG_ERROR_STR(buffer); - free(buffer); + LOG_ERROR_STR(*buffer); } } } @@ -405,8 +416,7 @@ bool RemoveEmptyDirectories(const char *DirName, bool RemoveThis) struct dirent *e; while ((e = d.Next()) != NULL) { if (strcmp(e->d_name, ".") && strcmp(e->d_name, "..") && strcmp(e->d_name, "lost+found")) { - char *buffer; - asprintf(&buffer, "%s/%s", DirName, e->d_name); + cString buffer = AddDirectory(DirName, e->d_name); struct stat st; if (stat(buffer, &st) == 0) { if (S_ISDIR(st.st_mode)) { @@ -417,10 +427,9 @@ bool RemoveEmptyDirectories(const char *DirName, bool RemoveThis) empty = false; } else { - LOG_ERROR_STR(buffer); + LOG_ERROR_STR(*buffer); empty = false; } - free(buffer); } } if (RemoveThis && empty) { @@ -445,8 +454,7 @@ int DirSizeMB(const char *DirName) struct dirent *e; while (size >= 0 && (e = d.Next()) != NULL) { if (strcmp(e->d_name, ".") && strcmp(e->d_name, "..")) { - char *buffer; - asprintf(&buffer, "%s/%s", DirName, e->d_name); + cString buffer = AddDirectory(DirName, e->d_name); struct stat st; if (stat(buffer, &st) == 0) { if (S_ISDIR(st.st_mode)) { @@ -460,10 +468,9 @@ int DirSizeMB(const char *DirName) size += st.st_size / MEGABYTE(1); } else { - LOG_ERROR_STR(buffer); + LOG_ERROR_STR(*buffer); size = -1; } - free(buffer); } } return size; @@ -489,13 +496,12 @@ char *ReadLink(const char *FileName) bool SpinUpDisk(const char *FileName) { - char *buf = NULL; for (int n = 0; n < 10; n++) { - free(buf); + cString buf; if (DirectoryOk(FileName)) - asprintf(&buf, "%s/vdr-%06d", *FileName ? FileName : ".", n); + buf = cString::sprintf("%s/vdr-%06d", *FileName ? FileName : ".", n); else - asprintf(&buf, "%s.vdr-%06d", FileName, n); + buf = cString::sprintf("%s.vdr-%06d", FileName, n); if (access(buf, F_OK) != 0) { // the file does not exist timeval tp1, tp2; gettimeofday(&tp1, NULL); @@ -503,21 +509,19 @@ bool SpinUpDisk(const char *FileName) // O_SYNC doesn't work on all file systems if (f >= 0) { if (fdatasync(f) < 0) - LOG_ERROR_STR(buf); + LOG_ERROR_STR(*buf); close(f); remove(buf); gettimeofday(&tp2, NULL); double seconds = (((long long)tp2.tv_sec * 1000000 + tp2.tv_usec) - ((long long)tp1.tv_sec * 1000000 + tp1.tv_usec)) / 1000000.0; if (seconds > 0.5) dsyslog("SpinUpDisk took %.2f seconds", seconds); - free(buf); return true; } else - LOG_ERROR_STR(buf); + LOG_ERROR_STR(*buf); } } - free(buf); esyslog("ERROR: SpinUpDisk failed"); return false; } @@ -888,7 +892,21 @@ cString cString::sprintf(const char *fmt, ...) va_list ap; va_start(ap, fmt); char *buffer; - vasprintf(&buffer, fmt, ap); + if (!fmt || vasprintf(&buffer, fmt, ap) < 0) { + esyslog("error in vasprintf('%s', ...)", fmt); + buffer = strdup("???"); + } + va_end(ap); + return cString(buffer, true); +} + +cString cString::sprintf(const char *fmt, va_list &ap) +{ + char *buffer; + if (!fmt || vasprintf(&buffer, fmt, ap) < 0) { + esyslog("error in vasprintf('%s', ...)", fmt); + buffer = strdup("???"); + } return cString(buffer, true); } @@ -1241,8 +1259,8 @@ bool cFileNameList::Load(const char *Directory, bool DirsOnly) if (strcmp(e->d_name, ".") && strcmp(e->d_name, "..")) { if (DirsOnly) { struct stat ds; - if (stat(e->d_name, &ds) == 0) { - if (S_ISDIR(ds.st_mode)) + if (stat(AddDirectory(Directory, e->d_name), &ds) == 0) { + if (!S_ISDIR(ds.st_mode)) continue; } } @@ -1622,7 +1640,7 @@ cLockFile::cLockFile(const char *Directory) fileName = NULL; f = -1; if (DirectoryOk(Directory)) - asprintf(&fileName, "%s/%s", Directory, LOCKFILENAME); + fileName = strdup(AddDirectory(Directory, LOCKFILENAME)); } cLockFile::~cLockFile() |