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This commit is contained in:
Jim Meyering
1993-12-28 23:46:12 +00:00
parent 0f5e2eba7c
commit 3ffdef958d
1 changed files with 17 additions and 10 deletions
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27
src/tee.c
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@@ -172,7 +172,17 @@ tee (nfiles, files)
else
mode |= O_TRUNC;
for (i = 0; i < nfiles; i++)
/* Move all the names `up' one in the argv array to make room for
the entry for standard output. This writes into argv[argc]. */
for (i = nfiles; i >= 1; i--)
files[i] = files[i - 1];
/* In the array of NFILES + 1 descriptors, make
the first one correspond to standard output. */
descriptors[0] = 1;
files[0] = "standard output";
for (i = 1; i <= nfiles; i++)
{
descriptors[i] = open (files[i], mode, 0666);
if (descriptors[i] == -1)
@@ -182,12 +192,6 @@ tee (nfiles, files)
}
}
/* In the array of NFILES + 1 descriptors, make
the last one correspond to standard output. */
descriptors[nfiles] = 1;
/* This writes into argv[argc]. */
files[nfiles] = "standard output";
while (1)
{
bytes_read = read (0, buffer, sizeof buffer);
@@ -199,14 +203,16 @@ tee (nfiles, files)
break;
/* Write to all NFILES + 1 descriptors.
Standard output is the last one. */
Standard output is the first one. */
for (i = 0; i <= nfiles; i++)
{
if (descriptors[i] != -1
&& safe_write (descriptors[i], buffer, bytes_read))
{
error (0, errno, "%s", files[i]);
close (descriptors[i]);
/* Don't close stdout. That's done in main. */
if (descriptors[i] != 1)
close (descriptors[i]);
descriptors[i] = -1;
ret = 1;
}
@@ -219,7 +225,8 @@ tee (nfiles, files)
ret = 1;
}
for (i = 0; i < nfiles; i++)
/* Close the files, but not standard output. */
for (i = 1; i <= nfiles; i++)
if (descriptors[i] != -1 && close (descriptors[i]) != 0)
{
error (0, errno, "%s", files[i]);