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install: Remove special handling for non-regular files

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All install(1) implementations I'm aware of don't try to replicate
the source file node like this. Additionally, this reportedly breaks
some scripts that use install(1) in a pipeline.
This commit is contained in:
Michael Forney 2020-03-01 17:26:48 -08:00
parent fa2f0e09c3
commit 2b8f1ee3a6
1 changed files with 13 additions and 61 deletions
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74
xinstall.c
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@ -43,72 +43,24 @@ make_dirs(char *dir, int was_missing)
static int static int
install(const char *s1, const char *s2, int depth) install(const char *s1, const char *s2, int depth)
{ {
DIR *dp;
int f1, f2; int f1, f2;
struct dirent *d;
struct stat st;
ssize_t r;
char target[PATH_MAX], ns1[PATH_MAX], ns2[PATH_MAX];
if (stat(s1, &st) < 0) if ((f1 = open(s1, O_RDONLY)) < 0)
eprintf("stat %s:", s1); eprintf("open %s:", s1);
if ((f2 = creat(s2, 0600)) < 0) {
if (S_ISLNK(st.st_mode)) {
if ((r = readlink(s1, target, sizeof(target) - 1)) >= 0) {
target[r] = '\0';
if (unlink(s2) < 0 && errno != ENOENT)
eprintf("unlink %s:", s2);
else if (symlink(target, s2) < 0)
eprintf("symlink %s -> %s:", s2, target);
}
} else if (S_ISDIR(st.st_mode)) {
if (!(dp = opendir(s1)))
eprintf("opendir %s:", s1);
if (mkdir(s2, mode | 0111) < 0 && errno != EEXIST)
eprintf("mkdir %s:", s2);
while ((d = readdir(dp))) {
if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
continue;
estrlcpy(ns1, s1, sizeof(ns1));
if (s1[strlen(s1) - 1] != '/')
estrlcat(ns1, "/", sizeof(ns1));
estrlcat(ns1, d->d_name, sizeof(ns1));
estrlcpy(ns2, s2, sizeof(ns2));
if (s2[strlen(s2) - 1] != '/')
estrlcat(ns2, "/", sizeof(ns2));
estrlcat(ns2, d->d_name, sizeof(ns2));
fnck(ns1, ns2, install, depth + 1);
}
closedir(dp);
} else if (S_ISBLK(st.st_mode) || S_ISCHR(st.st_mode) ||
S_ISSOCK(st.st_mode) || S_ISFIFO(st.st_mode)) {
if (unlink(s2) < 0 && errno != ENOENT) if (unlink(s2) < 0 && errno != ENOENT)
eprintf("unlink %s:", s2); eprintf("unlink %s:", s2);
else if (mknod(s2, (st.st_mode & ~07777) | mode, st.st_rdev) < 0) if ((f2 = creat(s2, 0600)) < 0)
eprintf("mknod %s:", s2); eprintf("creat %s:", s2);
} else {
if ((f1 = open(s1, O_RDONLY)) < 0)
eprintf("open %s:", s1);
if ((f2 = creat(s2, 0600)) < 0) {
if (unlink(s2) < 0 && errno != ENOENT)
eprintf("unlink %s:", s2);
if ((f2 = creat(s2, 0600)) < 0)
eprintf("creat %s:", s2);
}
if (concat(f1, s1, f2, s2) < 0)
exit(1);
if (fchmod(f2, mode) < 0)
eprintf("fchmod %s:", s2);
close(f1);
close(f2);
} }
if (concat(f1, s1, f2, s2) < 0)
exit(1);
if (fchmod(f2, mode) < 0)
eprintf("fchmod %s:", s2);
close(f1);
close(f2);
if (lchown(s2, owner, group) < 0) if (lchown(s2, owner, group) < 0)
eprintf("lchown %s:", s2); eprintf("lchown %s:", s2);