From 768945b762b8850691acd2b63116eed18faa1812 Mon Sep 17 00:00:00 2001 From: Rob Landley Date: Sun, 25 Jun 2006 00:34:52 +0000 Subject: [PATCH] A few patches from Erik Hovland, turning strncpy() into safe_strncpy() and removing some unnecessary code. --- archival/tar.c | 9 ++------- e2fsprogs/tune2fs.c | 4 ++-- editors/vi.c | 3 +-- networking/zcip.c | 2 +- 4 files changed, 6 insertions(+), 12 deletions(-) diff --git a/archival/tar.c b/archival/tar.c index f3594f685..5b7c1425a 100644 --- a/archival/tar.c +++ b/archival/tar.c @@ -42,12 +42,8 @@ #ifdef CONFIG_FEATURE_TAR_CREATE /* Tar file constants */ -# define TAR_MAGIC "ustar" /* ustar and a null */ -# define TAR_VERSION " " /* Be compatible with GNU tar format */ #define TAR_BLOCK_SIZE 512 -#define TAR_MAGIC_LEN 6 -#define TAR_VERSION_LEN 2 /* POSIX tar Header Block, from POSIX 1003.1-1990 */ #define NAME_SIZE 100 @@ -208,15 +204,14 @@ static inline int writeTarHeader(struct TarBallInfo *tbInfo, memset(&header, 0, size); - strncpy(header.name, header_name, sizeof(header.name)); + safe_strncpy(header.name, header_name, sizeof(header.name)); putOctal(header.mode, sizeof(header.mode), statbuf->st_mode); putOctal(header.uid, sizeof(header.uid), statbuf->st_uid); putOctal(header.gid, sizeof(header.gid), statbuf->st_gid); putOctal(header.size, sizeof(header.size), 0); /* Regular file size is handled later */ putOctal(header.mtime, sizeof(header.mtime), statbuf->st_mtime); - strncpy(header.magic, TAR_MAGIC TAR_VERSION, - TAR_MAGIC_LEN + TAR_VERSION_LEN); + strcpy(header.magic, "ustar "); /* Enter the user and group names (default to root if it fails) */ if (bb_getpwuid(header.uname, statbuf->st_uid, sizeof(header.uname)) == NULL) diff --git a/e2fsprogs/tune2fs.c b/e2fsprogs/tune2fs.c index 65ff445e7..521e49874 100644 --- a/e2fsprogs/tune2fs.c +++ b/e2fsprogs/tune2fs.c @@ -699,13 +699,13 @@ int tune2fs_main(int argc, char **argv) if (strlen(new_label) > sizeof(sb->s_volume_name)) bb_error_msg("Warning: label too long, truncating\n"); memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name)); - strncpy(sb->s_volume_name, new_label, + safe_strncpy(sb->s_volume_name, new_label, sizeof(sb->s_volume_name)); ext2fs_mark_super_dirty(fs); } if (M_flag) { memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted)); - strncpy(sb->s_last_mounted, new_last_mounted, + safe_strncpy(sb->s_last_mounted, new_last_mounted, sizeof(sb->s_last_mounted)); ext2fs_mark_super_dirty(fs); } diff --git a/editors/vi.c b/editors/vi.c index 660c01c3c..a890ad9d3 100644 --- a/editors/vi.c +++ b/editors/vi.c @@ -1088,13 +1088,12 @@ static void Hit_Return(void) //----- Synchronize the cursor to Dot -------------------------- static void sync_cursor(Byte * d, int *row, int *col) { - Byte *beg_cur, *end_cur; // begin and end of "d" line + Byte *beg_cur; // begin and end of "d" line Byte *beg_scr, *end_scr; // begin and end of screen Byte *tp; int cnt, ro, co; beg_cur = begin_line(d); // first char of cur line - end_cur = end_line(d); // last char of cur line beg_scr = end_scr = screenbegin; // first char of screen end_scr = end_screen(); // last char of screen diff --git a/networking/zcip.c b/networking/zcip.c index a6b034ea2..e25f01755 100644 --- a/networking/zcip.c +++ b/networking/zcip.c @@ -240,7 +240,7 @@ int zcip_main(int argc, char *argv[]) // initialize saddr memset(&saddr, 0, sizeof (saddr)); - strncpy(saddr.sa_data, intf, sizeof (saddr.sa_data)); + safe_strncpy(saddr.sa_data, intf, sizeof (saddr.sa_data)); // open an ARP socket if ((fd = socket(PF_PACKET, SOCK_PACKET, htons(ETH_P_ARP))) < 0) {