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chpst: fix "env directory" parsing to not strip everything

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after 1st whitespace. -6 bytes.
This commit is contained in:
Denis Vlasenko 2008-04-01 16:13:14 +00:00
parent 9dedf72e71
commit 9895dfdb9a
1 changed files with 22 additions and 24 deletions
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46
runit/chpst.c
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@ -114,6 +114,10 @@ static void edir(const char *directory_name)
if (!dir) if (!dir)
bb_perror_msg_and_die("opendir %s", directory_name); bb_perror_msg_and_die("opendir %s", directory_name);
for (;;) { for (;;) {
char buf[256];
char *tail;
int size;
errno = 0; errno = 0;
d = readdir(dir); d = readdir(dir);
if (!d) { if (!d) {
@ -135,31 +139,25 @@ static void edir(const char *directory_name)
bb_perror_msg_and_die("open %s/%s", bb_perror_msg_and_die("open %s/%s",
directory_name, d->d_name); directory_name, d->d_name);
} }
if (fd >= 0) { size = full_read(fd, buf, sizeof(buf)-1);
char buf[256]; close(fd);
char *tail; if (size < 0)
int size; bb_perror_msg_and_die("read %s/%s",
directory_name, d->d_name);
size = safe_read(fd, buf, sizeof(buf)-1); if (size == 0) {
if (size < 0) unsetenv(d->d_name);
bb_perror_msg_and_die("read %s/%s", continue;
directory_name, d->d_name);
if (size == 0) {
unsetenv(d->d_name);
continue;
}
buf[size] = '\n';
tail = memchr(buf, '\n', sizeof(buf));
/* skip trailing whitespace */;
while (1) {
if (tail[0] == ' ') tail[0] = '\0';
if (tail[0] == '\t') tail[0] = '\0';
if (tail[0] == '\n') tail[0] = '\0';
if (tail == buf) break;
tail--;
}
xsetenv(d->d_name, buf);
} }
buf[size] = '\n';
tail = strchr(buf, '\n');
/* skip trailing whitespace */
while (1) {
*tail = '\0';
tail--;
if (tail < buf || !isspace(*tail))
break;
}
xsetenv(d->d_name, buf);
} }
closedir(dir); closedir(dir);
if (fchdir(wdir) == -1) if (fchdir(wdir) == -1)