7421524478
target of a symbolic link and not the name of the link itself. Avoid using pr_fname on AIX for the same reason. Bug 654
133 lines
3.3 KiB
C
133 lines
3.3 KiB
C
/*
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* Copyright (c) 2013 Todd C. Miller <Todd.Miller@courtesan.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <config.h>
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/* Large files not supported by procfs.h */
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#if defined(HAVE_PROCFS_H) || defined(HAVE_SYS_PROCFS_H)
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# undef _FILE_OFFSET_BITS
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# undef _LARGE_FILES
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#endif
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#include <sys/types.h>
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#if defined(HAVE_PROCFS_H)
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# include <procfs.h>
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#elif defined(HAVE_SYS_PROCFS_H)
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# include <sys/procfs.h>
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#endif
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#include <stdio.h>
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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# include <stddef.h>
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#else
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# ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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# endif
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#endif /* STDC_HEADERS */
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif /* HAVE_STRING_H */
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif /* HAVE_STRINGS_H */
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#include <errno.h>
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#include <fcntl.h>
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#include "sudo_compat.h"
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#include "sudo_util.h"
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#if defined(HAVE_GETPROGNAME)
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void
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initprogname(const char *name)
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{
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# ifdef HAVE_SETPROGNAME
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/* Check for libtool prefix and strip it if present. */
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name = getprogname();
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if (name[0] == 'l' && name[1] == 't' && name[2] == '-' && name[3] != '\0')
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setprogname(name + 3);
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# endif
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return;
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}
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#elif defined(HAVE___PROGNAME)
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extern const char *__progname;
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static const char *progname = "";
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void
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initprogname(const char *name)
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{
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/* Check for libtool prefix and strip it if present. */
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if (__progname[0] == 'l' && __progname[1] == 't' && __progname[2] == '-' &&
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__progname[3] != '\0')
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progname = __progname + 3;
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else
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progname = __progname;
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return;
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}
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#else
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static const char *progname = "";
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void
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initprogname(const char *name)
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{
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const char *base;
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#if (defined(HAVE_PROCFS_H) || defined(HAVE_SYS_PROCFS_H)) && !defined(_AIX)
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static char ucomm[PRFNSZ];
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struct psinfo psinfo;
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char path[PATH_MAX];
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ssize_t nread;
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int fd;
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/* Try to determine the tty from pr_ttydev in /proc/pid/psinfo. */
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snprintf(path, sizeof(path), "/proc/%u/psinfo", (unsigned int)getpid());
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if ((fd = open(path, O_RDONLY, 0)) != -1) {
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nread = read(fd, &psinfo, sizeof(psinfo));
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close(fd);
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if (nread == (ssize_t)sizeof(psinfo)) {
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strlcpy(ucomm, psinfo.pr_fname, sizeof(ucomm));
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progname = ucomm;
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goto done;
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}
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}
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#endif /* (HAVE_PROCFS_H || HAVE_SYS_PROCFS_H) && !_AIX */
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if ((base = strrchr(name, '/')) != NULL) {
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base++;
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} else {
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base = name;
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}
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progname = base;
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done:
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if (progname[0] == 'l' && progname[1] == 't' && progname[2] == '-' &&
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progname[3] != '\0')
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progname += 3;
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}
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#endif /* !HAVE_GETPROGNAME && !HAVE___PROGNAME */
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#if !defined(HAVE_GETPROGNAME)
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const char *
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sudo_getprogname(void)
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{
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return progname;
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}
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#endif /* !HAVE_GETPROGNAME */
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