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dos2unix: try to preserve ownership. closes 8311

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function                                             old     new   delta
dos2unix_main                                        426     441     +15

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2016-01-17 03:50:36 +01:00
parent ccf7f0e4d3
commit c7e47cf627
1 changed files with 11 additions and 9 deletions
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20
coreutils/dos2unix.c
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@ -41,7 +41,7 @@ enum {
static void convert(char *fn, int conv_type)
{
FILE *in, *out;
int i;
int ch;
char *temp_fn = temp_fn; /* for compiler */
char *resolved_fn = resolved_fn;
@ -49,28 +49,30 @@ static void convert(char *fn, int conv_type)
out = stdout;
if (fn != NULL) {
struct stat st;
int fd;
resolved_fn = xmalloc_follow_symlinks(fn);
if (resolved_fn == NULL)
bb_simple_perror_msg_and_die(fn);
in = xfopen_for_read(resolved_fn);
fstat(fileno(in), &st);
xfstat(fileno(in), &st, resolved_fn);
temp_fn = xasprintf("%sXXXXXX", resolved_fn);
i = xmkstemp(temp_fn);
if (fchmod(i, st.st_mode) == -1)
fd = xmkstemp(temp_fn);
if (fchmod(fd, st.st_mode) == -1)
bb_simple_perror_msg_and_die(temp_fn);
fchown(fd, st.st_uid, st.st_gid);
out = xfdopen_for_write(i);
out = xfdopen_for_write(fd);
}
while ((i = fgetc(in)) != EOF) {
if (i == '\r')
while ((ch = fgetc(in)) != EOF) {
if (ch == '\r')
continue;
if (i == '\n')
if (ch == '\n')
if (conv_type == CT_UNIX2DOS)
fputc('\r', out);
fputc(i, out);
fputc(ch, out);
}
if (fn != NULL) {