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ar.c now uses a linked list to process headers, uses getopt, new internal function extractAr(srcFD, dstFd, filename) to make it easily accessable to other busybox functions.

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moved copySubFile from ar.c to utilities.c

modified dd.c to use fullWrite

modified copyFile in utilities.c to use copySubFile
This commit is contained in:
Glenn L McGrath
2000-08-25 03:50:10 +00:00
parent 4d5ac2f346
commit 06aeb6c417
8 changed files with 335 additions and 585 deletions
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45
utility.c
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@ -231,7 +231,7 @@ void reset_ino_dev_hashtable(void)
#endif /* BB_CP_MV || BB_DU */
#if defined (BB_CP_MV) || defined (BB_DU) || defined (BB_LN) || defined (BB_AR)
#if defined (BB_CP_MV) || defined (BB_DU) || defined (BB_LN)
/*
* Return TRUE if a fileName is a directory.
* Nonexistant files return FALSE.
@ -264,6 +264,29 @@ int isDirectory(const char *fileName, const int followLinks, struct stat *statBu
}
#endif
#if defined (BB_AR)
/*
* Copy readSize bytes between two file descriptors
*/
int copySubFile(int srcFd, int dstFd, size_t remaining)
{
size_t size;
char buffer[BUFSIZ];
while (remaining > 0) {
if (remaining > BUFSIZ)
size = BUFSIZ;
else
size = remaining;
if (fullWrite(dstFd, buffer, fullRead(srcFd, buffer, size)) < size)
return(FALSE);
remaining -= size;
}
return (TRUE);
}
#endif
#if defined (BB_CP_MV)
/*
* Copy one file to another, while possibly preserving its modes, times, and
@ -277,9 +300,7 @@ copyFile(const char *srcName, const char *destName,
{
int rfd;
int wfd;
int rcc;
int status;
char buf[BUF_SIZE];
struct stat srcStatBuf;
struct stat dstStatBuf;
struct utimbuf times;
@ -364,8 +385,7 @@ copyFile(const char *srcName, const char *destName,
return FALSE;
}
wfd =
open(destName, O_WRONLY | O_CREAT | O_TRUNC,
wfd = open(destName, O_WRONLY | O_CREAT | O_TRUNC,
srcStatBuf.st_mode);
if (wfd < 0) {
perror(destName);
@ -373,14 +393,9 @@ copyFile(const char *srcName, const char *destName,
return FALSE;
}
while ((rcc = read(rfd, buf, sizeof(buf))) > 0) {
if (fullWrite(wfd, buf, rcc) < 0)
goto error_exit;
}
if (rcc < 0) {
goto error_exit;
}
if (copySubFile(rfd, wfd, srcStatBuf.st_size)==FALSE)
goto error_exit;
close(rfd);
if (close(wfd) < 0) {
return FALSE;
@ -677,7 +692,7 @@ int recursiveAction(const char *fileName,
#if defined (BB_TAR) || defined (BB_MKDIR) || defined (BB_AR)
#if defined (BB_TAR) || defined (BB_MKDIR)
/*
* Attempt to create the directories along the specified path, except for
* the final component. The mode is given for the final directory only,
@ -1292,7 +1307,7 @@ extern long getNum(const char *cp)
#endif /* BB_DD || BB_TAIL */
#if defined BB_INIT || defined BB_SYSLOGD || defined BB_AR
#if defined BB_INIT || defined BB_SYSLOGD
/* try to open up the specified device */
extern int device_open(char *device, int mode)
{