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authorRob Landley <rob@landley.net>2014-03-13 19:55:59 -0500
committerRob Landley <rob@landley.net>2014-03-13 19:55:59 -0500
commit2c451a89be65778ae3b1af011029181e917f988b (patch)
treef96f5ae7b124d61e7675583a6ecc55b9d83b5665 /toys/pending/cpio.c
parentbab79fe8d6fd57de66761de6263b405ad237edf7 (diff)
downloadtoybox-2c451a89be65778ae3b1af011029181e917f988b.tar.gz
Cleanup cpio: use getline() instead of fgets(), have getline() allocate its own memory (instead of using toybuf), use perror_msg() instead of lower level verror_msg() (which is really an internal function needed to implement perror_msg()), don't set execute bits on created archive.
Diffstat (limited to 'toys/pending/cpio.c')
-rw-r--r--toys/pending/cpio.c43
1 files changed, 19 insertions, 24 deletions
diff --git a/toys/pending/cpio.c b/toys/pending/cpio.c
index 20a60224..5ae38f69 100644
--- a/toys/pending/cpio.c
+++ b/toys/pending/cpio.c
@@ -41,6 +41,7 @@ GLOBALS(
char *fmt;
)
+// 110 bytes
struct newc_header {
char c_magic[6];
char c_ino[8];
@@ -96,33 +97,27 @@ void write_cpio_member(int fd, char *name, struct stat buf)
if (buf.st_size & 3) write(1, &n, 4 - (buf.st_size & 3));
}
-/* Iterate through a list of files, read from stdin.
- * No users need rw.
- */
+// Iterate through a list of files read from stdin. No users need rw.
void loopfiles_stdin(void)
{
- int fd;
- struct stat st;
- char *name = toybuf;
-
- while (name) {
- memset(toybuf, 0, sizeof(toybuf));
- name = fgets(toybuf, sizeof(toybuf) - 1, stdin);
-
- if (name) {
- if (toybuf[strlen(name) - 1] == '\n' ) {
- toybuf[strlen(name) - 1 ] = '\0';
- if (lstat(name, &st) == -1) verror_msg(name, errno, NULL);
- if (errno) continue;
- fd = open(name, O_RDONLY);
- if (fd > 0 || !S_ISREG(st.st_mode)) {
- write_cpio_member(fd, name, st);
- close(fd);
- }
- errno = 0;
- }
+ char *name = 0;
+ size_t size = 0;
+
+ for (;;) {
+ struct stat st;
+ int len, fd;
+
+ len = getline(&name, &size, stdin);
+ if (!name) break;
+ if (name[len-1] == '\n') name[--len] = 0;
+ if (lstat(name, &st) || (fd = open(name, O_RDONLY))<0)
+ perror_msg("%s", name);
+ else {
+ write_cpio_member(fd, name, st);
+ close(fd);
}
}
+ free(name);
}
//convert hex to uint; mostly to allow using bits of non-terminated strings
@@ -236,7 +231,7 @@ void cpio_main(void)
xopen(TT.archive, O_RDONLY);
} else if (toys.optflags & FLAG_o) {
xclose(1);
- xcreate(TT.archive, O_CREAT|O_WRONLY|O_TRUNC, 0755);
+ xcreate(TT.archive, O_CREAT|O_WRONLY|O_TRUNC, 0644);
}
}