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authorGlenn L McGrath2002-12-13 08:20:44 +0000
committerGlenn L McGrath2002-12-13 08:20:44 +0000
commit25fe94fd32f39a76294456a7bc7b8dd0595afb0d (patch)
tree5f41636eb6f772de78a17e90189da6aeee3f32a7
parenta67dffe186eefb6cf75c08422dbfa0e4a752c692 (diff)
downloadbusybox-25fe94fd32f39a76294456a7bc7b8dd0595afb0d.zip
busybox-25fe94fd32f39a76294456a7bc7b8dd0595afb0d.tar.gz
Merge copyfd and copy_file_chunk
-rw-r--r--include/libbb.h2
-rw-r--r--libbb/copy_file.c2
-rw-r--r--libbb/copyfd.c57
-rw-r--r--libbb/print_file.c5
-rw-r--r--networking/ftpgetput.c53
5 files changed, 54 insertions, 65 deletions
diff --git a/include/libbb.h b/include/libbb.h
index 1e95a90..5f437a9 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -131,7 +131,7 @@ extern long* find_pid_by_name( const char* pidName);
extern char *find_real_root_device_name(const char* name);
extern char *get_line_from_file(FILE *file);
extern void print_file(FILE *file);
-extern int copyfd(int fd1, int fd2);
+extern int copyfd(int fd1, int fd2, const off_t chunksize);
extern int print_file_by_name(char *filename);
extern char process_escape_sequence(const char **ptr);
extern char *get_last_path_component(char *path);
diff --git a/libbb/copy_file.c b/libbb/copy_file.c
index 5f667cf..23a2d75 100644
--- a/libbb/copy_file.c
+++ b/libbb/copy_file.c
@@ -183,7 +183,7 @@ int copy_file(const char *source, const char *dest, int flags)
}
}
- if (copy_file_chunk(sfp, dfp, -1) < 0)
+ if (copyfd(fileno(sfp), fileno(dfp), 0) == -1)
status = -1;
if (fclose(dfp) < 0) {
diff --git a/libbb/copyfd.c b/libbb/copyfd.c
index 22d8c39..4df1fd0 100644
--- a/libbb/copyfd.c
+++ b/libbb/copyfd.c
@@ -24,27 +24,54 @@
#include <errno.h>
#include "libbb.h"
-
-extern int copyfd(int fd1, int fd2)
+/* If chunksize is 0 copy untill EOF */
+extern int copyfd(int fd1, int fd2, const off_t chunksize)
{
- char buf[8192];
- ssize_t nread, nwrote;
+ size_t nread;
+ size_t nwritten;
+ size_t size;
+ size_t remaining;
+ char buffer[BUFSIZ];
+
+ if (chunksize) {
+ remaining = chunksize;
+ } else {
+ remaining = -1;
+ }
+
+ do {
+ if ((chunksize > BUFSIZ) || (chunksize == 0)) {
+ size = BUFSIZ;
+ } else {
+ size = chunksize;
+ }
+
+ nread = safe_read(fd1, buffer, size);
- while (1) {
- nread = safe_read(fd1, buf, sizeof(buf));
- if (nread == 0)
- break;
if (nread == -1) {
- perror_msg("read");
- return -1;
+ perror_msg("read failure");
+ return(-1);
}
+ else if (nread == 0) {
+ if (chunksize) {
+ error_msg("Unable to read all data");
+ return(-1);
+ } else {
+ return(0);
+ }
+ }
+
+ nwritten = full_write(fd2, buffer, nread);
- nwrote = full_write(fd2, buf, nread);
- if (nwrote == -1) {
- perror_msg("write");
- return -1;
+ if (nwritten != nread) {
+ error_msg("Unable to write all data");
+ return(-1);
}
- }
+
+ if (chunksize) {
+ remaining -= nwritten;
+ }
+ } while (remaining != 0);
return 0;
}
diff --git a/libbb/print_file.c b/libbb/print_file.c
index a6df14e..cdd60e7 100644
--- a/libbb/print_file.c
+++ b/libbb/print_file.c
@@ -20,6 +20,7 @@
*/
#include <stdio.h>
+#include <stdlib.h>
#include <sys/stat.h>
#include "libbb.h"
@@ -27,7 +28,9 @@
extern void print_file(FILE *file)
{
fflush(stdout);
- copyfd(fileno(file), fileno(stdout));
+ if (copyfd(fileno(file), fileno(stdout), 0) == -1) {
+ exit(EXIT_FAILURE);
+ }
fclose(file);
}
diff --git a/networking/ftpgetput.c b/networking/ftpgetput.c
index 909f3b1..a23c64a 100644
--- a/networking/ftpgetput.c
+++ b/networking/ftpgetput.c
@@ -56,51 +56,6 @@ typedef struct ftp_host_info_s {
static char verbose_flag;
static char do_continue = 0;
-static int copyfd_chunk(int fd1, int fd2, const off_t chunksize)
-{
- size_t nread;
- size_t nwritten;
- size_t size;
- size_t remaining;
- char buffer[BUFSIZ];
-
- if (chunksize) {
- remaining = chunksize;
- } else {
- remaining = -1;
- }
-
- do {
- if ((chunksize > BUFSIZ) || (chunksize == 0)) {
- size = BUFSIZ;
- } else {
- size = chunksize;
- }
-
- nread = safe_read(fd1, buffer, size);
-
- if (nread <= 0) {
- if (chunksize) {
- perror_msg_and_die("read error");
- } else {
- return(0);
- }
- }
-
- nwritten = full_write(fd2, buffer, nread);
-
- if (nwritten != nread) {
- error_msg_and_die("Unable to write all data");
- }
-
- if (chunksize) {
- remaining -= nwritten;
- }
- } while (remaining != 0);
-
- return 0;
-}
-
static ftp_host_info_t *ftp_init(void)
{
ftp_host_info_t *host;
@@ -252,7 +207,9 @@ static int ftp_recieve(FILE *control_stream, const char *host, const char *local
}
/* Copy the file */
- copyfd_chunk(fd_data, fd_local, filesize);
+ if (copyfd(fd_data, fd_local, filesize) == -1) {
+ exit(EXIT_FAILURE);
+ }
/* close it all down */
close(fd_data);
@@ -311,7 +268,9 @@ static int ftp_send(FILE *control_stream, const char *host, const char *server_p
}
/* transfer the file */
- copyfd_chunk(fd_local, fd_data, 0);
+ if (copyfd(fd_local, fd_data, 0) == -1) {
+ exit(EXIT_FAILURE);
+ }
/* close it all down */
close(fd_data);