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authorGlenn L McGrath <bug1@ihug.co.nz>2001-07-29 05:47:33 +0000
committerGlenn L McGrath <bug1@ihug.co.nz>2001-07-29 05:47:33 +0000
commiteba260587ad880535f8beee9402e05a11735c7a5 (patch)
tree73bc45829ee21f3dc9ff99b7b6884095f5fee6c9 /coreutils
parent4e664ac51d974091097aaa436d72105e3446d90a (diff)
downloadbusybox-eba260587ad880535f8beee9402e05a11735c7a5.tar.gz
Fix broken logic when wraping encoded data into rows, also simplifies it a bit
Diffstat (limited to 'coreutils')
-rw-r--r--coreutils/uuencode.c34
1 files changed, 13 insertions, 21 deletions
diff --git a/coreutils/uuencode.c b/coreutils/uuencode.c
index 68d6f19a7..1789aefbb 100644
--- a/coreutils/uuencode.c
+++ b/coreutils/uuencode.c
@@ -56,7 +56,7 @@ static char tbl_std[64] = {
* buffer of at least 1+BASE64_LENGTH(length) bytes.
* where BASE64_LENGTH(len) = (4 * ((LENGTH + 2) / 3))
*/
-static void base64_encode (const char *s, const char *store, const int length, const char *tbl)
+static void uuencode (const char *s, const char *store, const int length, const char *tbl)
{
int i;
unsigned char *p = (unsigned char *)store;
@@ -82,7 +82,7 @@ static void base64_encode (const char *s, const char *store, const int length, c
int uuencode_main(int argc, char **argv)
{
- const int src_buf_size = 600; // This *MUST* be a multiple of 3
+ const int src_buf_size = 60; // This *MUST* be a multiple of 3
const int dst_buf_size = 4 * ((src_buf_size + 2) / 3);
RESERVE_BB_BUFFER(src_buf, src_buf_size + 1);
RESERVE_BB_BUFFER(dst_buf, dst_buf_size + 1);
@@ -93,7 +93,7 @@ int uuencode_main(int argc, char **argv)
mode_t mode;
int opt;
int column = 0;
- int write_size;
+ int write_size = 0;
int remaining;
int buffer_offset = 0;
@@ -127,7 +127,7 @@ int uuencode_main(int argc, char **argv)
while ((size = fread(src_buf, 1, src_buf_size, src_stream)) > 0) {
/* Encode the buffer we just read in */
- base64_encode(src_buf, dst_buf, size, tbl);
+ uuencode(src_buf, dst_buf, size, tbl);
/* Write the buffer to stdout, wrapping at 60 chars.
* This looks overly complex, but it gets tricky as
@@ -140,19 +140,20 @@ int uuencode_main(int argc, char **argv)
/* Initialise values for the new buffer */
remaining = 4 * ((size + 2) / 3);
buffer_offset = 0;
- if (remaining > (60 - column)) {
- write_size = 60 - column;
- }
- else if (remaining < 60) {
- write_size = remaining;
- } else {
- write_size = 60;
- }
/* Write the buffer to stdout, wrapping at 60 chars
* starting from the column the last buffer ran out
*/
do {
+ if (remaining > (60 - column)) {
+ write_size = 60 - column;
+ }
+ else if (remaining < 60) {
+ write_size = remaining;
+ } else {
+ write_size = 60;
+ }
+
/* Setup a new row if required */
if (column == 0) {
putchar('\n');
@@ -171,15 +172,6 @@ int uuencode_main(int argc, char **argv)
if (column % 60 == 0) {
column = 0;
}
-
- /* working next amount to write */
- write_size = (60 - column) % 60;
- if (write_size < remaining) {
- write_size = remaining;
- }
- if (write_size == 0) {
- write_size = 60;
- }
} while (remaining > 0);
}
printf(tbl == tbl_std ? "\n`\nend\n" : "\n====\n");