summaryrefslogtreecommitdiff
path: root/archival/tar.c
diff options
context:
space:
mode:
authorMatt Kraai2000-11-08 02:35:47 +0000
committerMatt Kraai2000-11-08 02:35:47 +0000
commitd8ad76cb31ff7c4b2d97cc66eafc4297f5cea7d7 (patch)
tree96d2607e6ec898a68b746d65df0eac88281be77c /archival/tar.c
parent63a862272cc5c0cc8e15c8d95dfb9e8944eb944e (diff)
downloadbusybox-d8ad76cb31ff7c4b2d97cc66eafc4297f5cea7d7.zip
busybox-d8ad76cb31ff7c4b2d97cc66eafc4297f5cea7d7.tar.gz
Fix some bugs reported by Jim Gleason <jimg@lineo.com> and others I
introduced.
Diffstat (limited to 'archival/tar.c')
-rw-r--r--archival/tar.c39
1 files changed, 15 insertions, 24 deletions
diff --git a/archival/tar.c b/archival/tar.c
index 740462e..4fd864b 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -137,8 +137,8 @@ static int readTarFile(const char* tarName, int extractFlag, int listFlag,
#ifdef BB_FEATURE_TAR_CREATE
/* Local procedures to save files into a tar file. */
-static int writeTarFile(const char* tarName, int tostdoutFlag,
- int verboseFlag, int argc, char **argv, char** excludeList);
+static int writeTarFile(const char* tarName, int verboseFlag, char **argv,
+ char** excludeList);
#endif
extern int tar_main(int argc, char **argv)
@@ -160,13 +160,11 @@ extern int tar_main(int argc, char **argv)
if (argc <= 1)
usage(tar_usage);
- /* do normal option parsing */
- while (--argc > 0 && ((*argv && **(++argv) == '-') ||
- (firstOpt==TRUE && strspn(*argv, "-cxt") ))) {
+ while (*(++argv) && (**argv == '-' || firstOpt == TRUE)) {
firstOpt=FALSE;
stopIt=FALSE;
- while (stopIt==FALSE && *argv && **argv) {
- switch (**argv) {
+ while (stopIt==FALSE && **argv) {
+ switch (*((*argv)++)) {
case 'c':
if (extractFlag == TRUE || listFlag == TRUE)
goto flagError;
@@ -187,29 +185,22 @@ extern int tar_main(int argc, char **argv)
break;
case 'O':
tostdoutFlag = TRUE;
- tarName = "-";
break;
case 'f':
- if (--argc == 0) {
- fatalError( "Option requires an argument: No file specified\n");
- }
if (*tarName != '-')
fatalError( "Only one 'f' option allowed\n");
tarName = *(++argv);
if (tarName == NULL)
fatalError( "Option requires an argument: No file specified\n");
- if (!strcmp(tarName, "-") && createFlag == TRUE)
- tostdoutFlag = TRUE;
stopIt=TRUE;
break;
#if defined BB_FEATURE_TAR_EXCLUDE
case 'e':
if (strcmp(*argv, "exclude")==0) {
- if (--argc == 0) {
- fatalError( "Option requires an argument: No file specified\n");
- }
excludeList=xrealloc( excludeList, sizeof(char**) * (excludeListSize+2));
excludeList[excludeListSize] = *(++argv);
+ if (excludeList[excludeListSize] == NULL)
+ fatalError( "Option requires an argument: No file specified\n");
/* Remove leading "/"s */
if (*excludeList[excludeListSize] =='/')
excludeList[excludeListSize] = (excludeList[excludeListSize])+1;
@@ -224,7 +215,6 @@ extern int tar_main(int argc, char **argv)
default:
usage(tar_usage);
}
- ++(*argv);
}
}
@@ -236,11 +226,12 @@ extern int tar_main(int argc, char **argv)
#ifndef BB_FEATURE_TAR_CREATE
fatalError( "This version of tar was not compiled with tar creation support.\n");
#else
- exit(writeTarFile(tarName, tostdoutFlag, verboseFlag, argc, argv, excludeList));
+ exit(writeTarFile(tarName, verboseFlag, argv, excludeList));
#endif
}
if (listFlag == TRUE || extractFlag == TRUE) {
- exit(readTarFile(tarName, extractFlag, listFlag, tostdoutFlag, verboseFlag, &argv[optind], excludeList));
+ exit(readTarFile(tarName, extractFlag, listFlag, tostdoutFlag,
+ verboseFlag, argv, excludeList));
}
flagError:
@@ -967,8 +958,8 @@ static int writeFileToTarball(const char *fileName, struct stat *statbuf, void*
return( TRUE);
}
-static int writeTarFile(const char* tarName, int tostdoutFlag,
- int verboseFlag, int argc, char **argv, char** excludeList)
+static int writeTarFile(const char* tarName, int verboseFlag, char **argv,
+ char** excludeList)
{
int tarFd=-1;
int errorFlag=FALSE;
@@ -977,11 +968,11 @@ static int writeTarFile(const char* tarName, int tostdoutFlag,
tbInfo.verboseFlag = verboseFlag;
/* Make sure there is at least one file to tar up. */
- if (argc <= 0)
+ if (*argv == NULL)
fatalError("Cowardly refusing to create an empty archive\n");
/* Open the tar file for writing. */
- if (tostdoutFlag == TRUE)
+ if (!strcmp(tarName, "-"))
tbInfo.tarFd = fileno(stdout);
else
tbInfo.tarFd = open (tarName, O_WRONLY | O_CREAT | O_TRUNC, 0644);
@@ -1000,7 +991,7 @@ static int writeTarFile(const char* tarName, int tostdoutFlag,
umask(0);
/* Read the directory/files and iterate over them one at a time */
- while (argc-- > 0) {
+ while (*argv != NULL) {
if (recursiveAction(*argv++, TRUE, FALSE, FALSE,
writeFileToTarball, writeFileToTarball,
(void*) &tbInfo) == FALSE) {