diff options
Diffstat (limited to 'archival')
| -rw-r--r-- | archival/tar.c | 81 |
1 files changed, 39 insertions, 42 deletions
diff --git a/archival/tar.c b/archival/tar.c index 4971e4775..9a3cff361 100644 --- a/archival/tar.c +++ b/archival/tar.c @@ -51,6 +51,7 @@ #include <sys/types.h> #include <sys/sysmacros.h> #include <getopt.h> +#include <fnmatch.h> #ifdef BB_FEATURE_TAR_GZIP extern int unzip(int in, int out); @@ -251,9 +252,6 @@ extern int tar_main(int argc, char **argv) excludeList[excludeListSize] = *(++argv); if (excludeList[excludeListSize] == NULL) error_msg_and_die( "Option requires an argument: No file specified\n"); - /* Remove leading "/"s */ - while (*excludeList[excludeListSize] =='/') - excludeList[excludeListSize]++; /* Tack a NULL onto the end of the list */ excludeList[++excludeListSize] = NULL; stopIt=TRUE; @@ -274,9 +272,6 @@ extern int tar_main(int argc, char **argv) if (file[strlen(file)-1] == '\n') file[strlen(file)-1] = '\0'; excludeList[excludeListSize] = xstrdup(file); - /* Remove leading "/"s */ - while (*excludeList[excludeListSize] == '/') - excludeList[excludeListSize]++; /* Tack a NULL onto the end of the list */ excludeList[++excludeListSize] = NULL; } @@ -576,6 +571,32 @@ readTarHeader(struct TarHeader *rawHeader, struct TarInfo *header) return( FALSE); } +int exclude_file(char **excluded_files, const char *file) +{ + int i; + + if (excluded_files == NULL) + return 0; + + for (i = 0; excluded_files[i] != NULL; i++) { + if (excluded_files[i][0] == '/') { + if (fnmatch(excluded_files[i], file, + FNM_PATHNAME | FNM_LEADING_DIR) == 0) + return 1; + } else { + const char *p; + + for (p = file; p[0] != '\0'; p++) { + if ((p == file || p[-1] == '/') && p[0] != '/' && + fnmatch(excluded_files[i], p, + FNM_PATHNAME | FNM_LEADING_DIR) == 0) + return 1; + } + } + } + + return 0; +} /* * Read a tar file and extract or list the specified files within it. @@ -629,32 +650,19 @@ extern int readTarFile(int tarFd, int extractFlag, int listFlag, } #if defined BB_FEATURE_TAR_EXCLUDE - { - int skipFlag=FALSE; - /* Check for excluded files.... */ - for (tmpList=excludeList; tmpList && *tmpList; tmpList++) { - /* Do some extra hoop jumping for when directory names - * end in '/' but the entry in tmpList doesn't */ - if (strncmp( *tmpList, header.name, strlen(*tmpList))==0 || ( - header.name[strlen(header.name)-1]=='/' - && strncmp( *tmpList, header.name, - MIN(strlen(header.name)-1, strlen(*tmpList)))==0)) { - /* If it is a regular file, pretend to extract it with - * the extractFlag set to FALSE, so the junk in the tarball - * is properly skipped over */ - if ( header.type==REGTYPE || header.type==REGTYPE0 ) { - if (tarExtractRegularFile(&header, FALSE, FALSE) == FALSE) - errorFlag = TRUE; - } - skipFlag=TRUE; - break; - } - } + if (exclude_file(excludeList, header.name)) { /* There are not the droids you're looking for, move along */ - if (skipFlag==TRUE) - continue; + /* If it is a regular file, pretend to extract it with + * the extractFlag set to FALSE, so the junk in the tarball + * is properly skipped over */ + if ( header.type==REGTYPE || header.type==REGTYPE0 ) { + if (tarExtractRegularFile(&header, FALSE, FALSE) == FALSE) + errorFlag = TRUE; + } + continue; } #endif + if (extractList != NULL) { int skipFlag = TRUE; for (tmpList = extractList; *tmpList != NULL; tmpList++) { @@ -1036,9 +1044,6 @@ static int writeFileToTarball(const char *fileName, struct stat *statbuf, void* { struct TarBallInfo *tbInfo = (struct TarBallInfo *)userData; const char *header_name; -#if defined BB_FEATURE_TAR_EXCLUDE - char** tmpList; -#endif /* ** Check to see if we are dealing with a hard link. @@ -1090,16 +1095,8 @@ static int writeFileToTarball(const char *fileName, struct stat *statbuf, void* return TRUE; #if defined BB_FEATURE_TAR_EXCLUDE - /* Check for excluded files.... */ - for (tmpList=tbInfo->excludeList; tmpList && *tmpList; tmpList++) { - /* Do some extra hoop jumping for when directory names - * end in '/' but the entry in tmpList doesn't */ - if (strncmp( *tmpList, header_name, strlen(*tmpList))==0 || ( - fileName[strlen(fileName)-1]=='/' - && strncmp( *tmpList, fileName, - MIN(strlen(fileName)-1, strlen(*tmpList)))==0)) { - return SKIP; - } + if (exclude_file(tbInfo->excludeList, header_name)) { + return SKIP; } #endif |