diff options
Diffstat (limited to 'usr/src/lib/libcmd/common/fds.c')
| -rw-r--r-- | usr/src/lib/libcmd/common/fds.c | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/usr/src/lib/libcmd/common/fds.c b/usr/src/lib/libcmd/common/fds.c new file mode 100644 index 0000000000..b7e9fb2e88 --- /dev/null +++ b/usr/src/lib/libcmd/common/fds.c @@ -0,0 +1,168 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1992-2007 AT&T Knowledge Ventures * +* and is licensed under the * +* Common Public License, Version 1.0 * +* by AT&T Knowledge Ventures * +* * +* A copy of the License is available at * +* http://www.opensource.org/licenses/cpl1.0.txt * +* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * +* * +* Information and Software Systems Research * +* AT&T Research * +* Florham Park NJ * +* * +* Glenn Fowler <gsf@research.att.com> * +* David Korn <dgk@research.att.com> * +* * +***********************************************************************/ +#pragma prototyped + +static const char usage[] = +"[-?\n@(#)$Id: fds (AT&T Research) 2006-10-26 $\n]" +USAGE_LICENSE +"[+NAME?fds - list open file descriptor status]" +"[+DESCRIPTION?\bfds\b lists the status for each open file descriptor. " + "When invoked as a shell builtin it accesses the file descriptors of the " + "calling shell, otherwise it lists the file descriptors passed across " + "\bexec\b(2).]" +"[l:long?List file descriptor details.]" +"[+SEE ALSO?\blogname\b(1), \bwho\b(1), \bgetgroups\b(2)]" +; + +#include <cmd.h> +#include <ls.h> + +#include "FEATURE/sockets" + +#if defined(S_IFSOCK) && _sys_socket && _hdr_arpa_inet && _hdr_netinet_in && _lib_getsockname && _lib_getsockopt && _lib_inet_ntoa +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#else +#undef S_IFSOCK +#endif + +#ifndef minor +#define minor(x) (int)((x)&0xff) +#endif +#ifndef major +#define major(x) (int)(((unsigned int)(x)>>8)&0xff) +#endif + +int +b_fds(int argc, char** argv, void* context) +{ + register char* s; + register int i; + register char* m; + register char* x; + int flags; + int details; + struct stat st; +#ifdef S_IFSOCK + struct sockaddr_in addr; + socklen_t len; + int type; + int prot; + char num[32]; +#endif + + cmdinit(argc, argv, context, ERROR_CATALOG, 0); + details = 0; + for (;;) + { + switch (optget(argv, usage)) + { + case 'l': + details = opt_info.num; + continue; + case '?': + error(ERROR_USAGE|4, "%s", opt_info.arg); + continue; + case ':': + error(2, "%s", opt_info.arg); + continue; + } + break; + } + argv += opt_info.index; + if (error_info.errors || *argv) + error(ERROR_USAGE|4, "%s", optusage(NiL)); + for (i = 0; i <= OPEN_MAX; i++) + if (fstat(i, &st)) + /* not open */; + else if (details) + { + if ((flags = fcntl(i, F_GETFL, (char*)0)) == -1) + m = "--"; + else + switch (flags & (O_RDONLY|O_WRONLY|O_RDWR)) + { + case O_RDONLY: + m = "r-"; + break; + case O_WRONLY: + m = "-w"; + break; + case O_RDWR: + m = "rw"; + break; + default: + m = "??"; + break; + } + x = (fcntl(i, F_GETFD, (char*)0) > 0) ? "x" : "-"; + if (isatty(i) && (s = ttyname(i))) + sfprintf(sfstdout, "%02d %s%s %s %s\n", i, m, x, fmtmode(st.st_mode, 0), s); +#ifdef S_IFSOCK + else if ((len = sizeof(addr)) + && !getsockname(i, (struct sockaddr*)&addr, (void*)&len) + && len == sizeof(addr) + && addr.sin_family == AF_INET +#ifdef SO_TYPE + && (len = sizeof(type)) + && !getsockopt(i, SOL_SOCKET, SO_TYPE, (void*)&type, (void*)&len) + && len == sizeof(type) +#else + && !(type = 0) +#endif +#ifdef SO_PROTOTYPE + && (len = sizeof(prot)) + && (!getsockopt(i, SOL_SOCKET, SO_PROTOTYPE, (void*)&prot, (void*)&len) || !(prot = 0)) +#else + && !(prot = 0) +#endif + ) + { + if (!st.st_mode) + st.st_mode = S_IFSOCK|S_IRUSR|S_IWUSR; + s = 0; + switch (type) + { + case SOCK_DGRAM: + s = "udp"; + break; + case SOCK_STREAM: + if (prot == 0) + s = "tcp"; +#ifdef IPPROTO_SCTP + else if (prot == IPPROTO_SCTP) + s = "sctp"; +#endif + break; + } + if (!s) + sfprintf(sfstdout, s = num, "type.%d.prot.%d", type, prot); + sfprintf(sfstdout, "%02d %s%s %s /dev/%s/%s/%d\n", i, m, x, fmtmode(st.st_mode, 0), s, inet_ntoa(addr.sin_addr), ntohs(addr.sin_port)); + } +#endif + else + sfprintf(sfstdout, "%02d %s%s %s /dev/inode/%u/%u\n", i, m, x, fmtmode(st.st_mode, 0), st.st_dev, st.st_ino); + } + else + sfprintf(sfstdout, "%d\n", i); + return 0; +} |