diff options
Diffstat (limited to 'newlib/libc/sys/linux/net/ruserpass.c')
| -rw-r--r-- | newlib/libc/sys/linux/net/ruserpass.c | 336 |
1 files changed, 336 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/net/ruserpass.c b/newlib/libc/sys/linux/net/ruserpass.c new file mode 100644 index 000000000..5c429b072 --- /dev/null +++ b/newlib/libc/sys/linux/net/ruserpass.c @@ -0,0 +1,336 @@ +/* + * Copyright (c) 1985, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)ruserpass.c 8.3 (Berkeley) 4/2/94"; +#endif /* not lint */ + +#include <sys/types.h> +#include <sys/stat.h> + +#include <ctype.h> +#include <err.h> +#include <errno.h> +#include <netdb.h> +#include <stdio.h> +#include <stdio_ext.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <libintl.h> +#include "local.h" + +/* #include "ftp_var.h" */ + +static int token (void); +static FILE *cfile; + +#define DEFAULT 1 +#define LOGIN 2 +#define PASSWD 3 +#define ACCOUNT 4 +#define MACDEF 5 +#define ID 10 +#define MACHINE 11 + +static char tokval[100]; + +static const char tokstr[] = +{ +#define TOK_DEFAULT_IDX 0 + "default\0" +#define TOK_LOGIN_IDX (TOK_DEFAULT_IDX + sizeof "default") + "login\0" +#define TOK_PASSWORD_IDX (TOK_LOGIN_IDX + sizeof "login") + "password\0" +#define TOK_PASSWD_IDX (TOK_PASSWORD_IDX + sizeof "password") + "passwd\0" +#define TOK_ACCOUNT_IDX (TOK_PASSWD_IDX + sizeof "passwd") + "account\0" +#define TOK_MACHINE_IDX (TOK_ACCOUNT_IDX + sizeof "account") + "machine\0" +#define TOK_MACDEF_IDX (TOK_MACHINE_IDX + sizeof "machine") + "macdef" +}; + +static const struct toktab { + int tokstr_off; + int tval; +} toktab[]= { + { TOK_DEFAULT_IDX, DEFAULT }, + { TOK_LOGIN_IDX, LOGIN }, + { TOK_PASSWORD_IDX, PASSWD }, + { TOK_PASSWD_IDX, PASSWD }, + { TOK_ACCOUNT_IDX, ACCOUNT }, + { TOK_MACHINE_IDX, MACHINE }, + { TOK_MACDEF_IDX, MACDEF } +}; + + +#define warnx(x) fprintf(stderr, x) +#define warnx2(x, y) fprintf(stderr, x, y) + +int +ruserpass(host, aname, apass) + const char *host, **aname, **apass; +{ + char *hdir, *buf, *tmp; + char myname[1024], *mydomain; + int t, usedefault = 0; + struct stat64 stb; + + hdir = getenv("HOME"); + if (hdir == NULL) { + /* If we can't get HOME, fail instead of trying ".", + which is no improvement. This really should call + getpwuid(getuid()). */ + /*hdir = ".";*/ + return -1; + } + + buf = alloca (strlen (hdir) + 8); + + stpcpy (stpcpy (buf, hdir), "/.netrc"); + cfile = fopen(buf, "rc"); + if (cfile == NULL) { + if (errno != ENOENT) { + char *t = asprintf("%s", buf); + perror(t); + } + return (0); + } + /* No threads use this stream. */ + __fsetlocking (cfile, FSETLOCKING_BYCALLER); + if (__gethostname(myname, sizeof(myname)) < 0) + myname[0] = '\0'; + tmp = strchr(myname, '.'); + if (tmp == NULL) + tmp = myname + strlen(myname); + mydomain = tmp; +next: + while ((t = token())) switch(t) { + + case DEFAULT: + usedefault = 1; + /* FALL THROUGH */ + + case MACHINE: + if (!usedefault) { + if (token() != ID) + continue; + /* + * Allow match either for user's input host name + * or official hostname. Also allow match of + * incompletely-specified host in local domain. + */ + if (strcasecmp(host, tokval) == 0) + goto match; +/* if (strcasecmp(hostname, tokval) == 0) + goto match; + if ((tmp = strchr(hostname, '.')) != NULL && + strcasecmp(tmp, mydomain) == 0 && + strncasecmp(hostname, tokval, tmp-hostname) == 0 && + tokval[tmp - hostname] == '\0') + goto match; */ + if ((tmp = strchr(host, '.')) != NULL && + strcasecmp(tmp, mydomain) == 0 && + strncasecmp(host, tokval, tmp - host) == 0 && + tokval[tmp - host] == '\0') + goto match; + continue; + } + match: + while ((t = token()) && t != MACHINE && t != DEFAULT) switch(t) { + + case LOGIN: + if (token()) { + if (*aname == 0) { + char *newp; + newp = malloc((unsigned) strlen(tokval) + 1); + if (newp == NULL) + { + warnx(_("out of memory")); + goto bad; + } + *aname = strcpy(newp, tokval); + } else { + if (strcmp(*aname, tokval)) + goto next; + } + } + break; + case PASSWD: + if (strcmp(*aname, "anonymous") && + fstat64(fileno(cfile), &stb) >= 0 && + (stb.st_mode & 077) != 0) { + warnx(_("Error: .netrc file is readable by others.")); + warnx(_("Remove password or make file unreadable by others.")); + goto bad; + } + if (token() && *apass == 0) { + char *newp; + newp = malloc((unsigned) strlen(tokval) + 1); + if (newp == NULL) + { + warnx(_("out of memory")); + goto bad; + } + *apass = strcpy(newp, tokval); + } + break; + case ACCOUNT: +#if 0 + if (fstat64(fileno(cfile), &stb) >= 0 + && (stb.st_mode & 077) != 0) { + warnx("Error: .netrc file is readable by others."); + warnx("Remove account or make file unreadable by others."); + goto bad; + } + if (token() && *aacct == 0) { + *aacct = malloc((unsigned) strlen(tokval) + 1); + (void) strcpy(*aacct, tokval); + } +#endif + break; + case MACDEF: +#if 0 + if (proxy) { + (void) fclose(cfile); + return (0); + } + while ((c=getc_unlocked(cfile)) != EOF && c == ' ' + || c == '\t'); + if (c == EOF || c == '\n') { + printf("Missing macdef name argument.\n"); + goto bad; + } + if (macnum == 16) { + printf("Limit of 16 macros have already been defined\n"); + goto bad; + } + tmp = macros[macnum].mac_name; + *tmp++ = c; + for (i=0; i < 8 && (c=getc_unlocked(cfile)) != EOF && + !isspace(c); ++i) { + *tmp++ = c; + } + if (c == EOF) { + printf("Macro definition missing null line terminator.\n"); + goto bad; + } + *tmp = '\0'; + if (c != '\n') { + while ((c=getc_unlocked(cfile)) != EOF + && c != '\n'); + } + if (c == EOF) { + printf("Macro definition missing null line terminator.\n"); + goto bad; + } + if (macnum == 0) { + macros[macnum].mac_start = macbuf; + } + else { + macros[macnum].mac_start = macros[macnum-1].mac_end + 1; + } + tmp = macros[macnum].mac_start; + while (tmp != macbuf + 4096) { + if ((c=getc_unlocked(cfile)) == EOF) { + printf("Macro definition missing null line terminator.\n"); + goto bad; + } + *tmp = c; + if (*tmp == '\n') { + if (*(tmp-1) == '\0') { + macros[macnum++].mac_end = tmp - 1; + break; + } + *tmp = '\0'; + } + tmp++; + } + if (tmp == macbuf + 4096) { + printf("4K macro buffer exceeded\n"); + goto bad; + } +#endif + break; + default: + warnx2(_("Unknown .netrc keyword %s"), tokval); + break; + } + goto done; + } +done: + (void) fclose(cfile); + return (0); +bad: + (void) fclose(cfile); + return (-1); +} +libc_hidden_def (ruserpass) + +static int +token() +{ + char *cp; + int c; + int i; + + if (feof(cfile) || ferror(cfile)) + return (0); + while ((c = getc_unlocked(cfile)) != EOF && + (c == '\n' || c == '\t' || c == ' ' || c == ',')) + continue; + if (c == EOF) + return (0); + cp = tokval; + if (c == '"') { + while ((c = getc_unlocked(cfile)) != EOF && c != '"') { + if (c == '\\') + c = getc_unlocked(cfile); + *cp++ = c; + } + } else { + *cp++ = c; + while ((c = getc_unlocked(cfile)) != EOF + && c != '\n' && c != '\t' && c != ' ' && c != ',') { + if (c == '\\') + c = getc_unlocked(cfile); + *cp++ = c; + } + } + *cp = 0; + if (tokval[0] == 0) + return (0); + for (i = 0; i < (int) (sizeof (toktab) / sizeof (toktab[0])); ++i) + if (!strcmp(&tokstr[toktab[i].tokstr_off], tokval)) + return toktab[i].tval; + return (ID); +} |