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archie/prospero/user/archie.c
Mario Fetka d71d446104 Intial commit
2024-05-27 16:13:40 +02:00

687 lines
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/*
* Copyright (c) 1991 by the University of Washington
* Copyright (c) 1993 by the University of Southern California
*
* For copying and distribution information, please see the files
* <uw-copyright.h> and <usc-copyr.h>.
*
* Written by Clifford Neuman (bcn@isi.edu) with changes by
* Brendan Kehoe (brendan@cs.widener.edu) and
* George Ferguson (ferguson@cs.rochester.edu).
*/
#include <uw-copyright.h>
#include <usc-copyr.h>
#include <stdio.h>
#include <sys/time.h>
#include <time.h> /*SCOUNIX for localtime*/
#include <ardp.h>
#include <pfs.h>
#include <perrno.h>
#include <archie.h>
#ifdef AIX
#include <sys/select.h>
#endif
char *month_sname();
char *index();
void display_link();
int expand_links();
int pfs_debug = 0;
char *progname;
char *prog;
static char lastpath[MAX_VPATH] = "\001";
static char lasthost[MAX_VPATH] = "\001";
#define AQ_LF_ONEPERLINE 0x1
#define AQ_LF_HOSTINFO 0x2
#define AQ_LF_STRINGONLY 0x4
/*
* Archie client using the Prospero protocol
*
* Usage: archie [-[cehkrsxz][ltMT][NM #][H host][f? <farg>]] string
*
* Send a query to Prospero server on host running
* Archie, collect, process, and display results.
* A search returns all hits, a match only returns
* the matching strings, but not file references.
* The user will then be prompted to select the
* matching strings to expand. If the match option
* is upper case, prompting is disabled and the
* program displays the matches and exits.
*
*
* OPTIONS:
* -c : case sensitive substring search
* -K -k : case sensitive substring match
* -e : exact string match (default)
* -r : regular expression search
* -X -x : regular expression match
* -s : case insensitive substring search
* -Z -z : case insensitive substring match
* -h : ask for information about matching hosts
* -E : expand directory and query responses from server
*-fd -fc <arg> : specify domain or component filter and argument
* -l : list one match per line
* -t : sort inverted by date
* -M -MM : display the message of the day (MM immediate)
* -M : display the message of the day
* -T : display status information for server
* -N# or -N # : specifies query niceness level (# optional 0-35765)
* -m# or -m # : specifies maximum number of hits to return
* -H host : specifies server host
* -D# or -D # : Debug level (# optional)
*
* If -e is specified in addition to either -r, -x, -s, -z,
* -c, or -k, then server will try an exact match before
* falling back to a more expensive method.
*/
void
main(int argc,char *argv[])
{
char *cur_arg; /* For argument parsing */
struct aquery aqst; /* The query to be sent */
int ptmp; /* Temp for arg parsing */
int tmp; /* For return values */
int versionflag = 0; /* Display release identifier */
int listflag = 0; /* Flags for listing links */
int expandflag = 0; /* Expand the response */
char etype = AQ_EXACT; /* Type if only -e is specified */
int eflag = 0; /* Exact flag specified */
int Mcount = 0; /* # times -M flag specified */
int Tflag = 0; /* Display status info for svr */
VLINK l; /* Temporary link pointer */
progname = argv[0];
prog = progname;
ardp_abort_on_int();
p_initialize("aPtb", 0, (struct p_initialize_st *) NULL);
aq_init(&aqst);
argc--;argv++;
while (argc > 0 && **argv == '-') {
cur_arg = argv[0]+1;
/* If a - by itself, or --, then no more arguments */
if(!*cur_arg || ((*cur_arg == '-') && (!*(cur_arg+1)))) {
argc--, argv++;
goto scandone;
}
while (*cur_arg) {
switch (*cur_arg++) {
case 'D': /* debug level */
pfs_debug = 1; /* Default debug level */
if(*cur_arg && index("0123456789",*cur_arg)) {
sscanf(cur_arg,"%d",&pfs_debug);
cur_arg += strspn(cur_arg,"0123456789");
}
else if(argc > 2) {
tmp = sscanf(argv[1],"%d",&pfs_debug);
if (tmp == 1) {argc--;argv++;}
}
break;
case 'E': /* Expand flag */
if(listflag&AQ_LF_ONEPERLINE) {
fprintf(stderr, "%s: -E option incompatible with -l option\n",progname);
exit(1);
}
expandflag = 2;
break;
case 'H': /* archie server host */
aqst.host = argv[1];
argc--;argv++;
break;
case 'K': /* substring (case sensitive) */
expandflag = 0;
listflag |= AQ_LF_STRINGONLY;
aqst.query_type = AQ_M_CS_SUBSTR;
etype = AQ_M_ECS_SUBSTR;
break;
case 'M': /* Request motd */
Mcount++;
aqst.flags |= AQ_MOTD;
break;
case 'N': /* priority (nice) */
ardp_priority = ARDP_MAX_PRI; /* Use this if no # */
if(*cur_arg && index("-0123456789",*cur_arg)) {
sscanf(cur_arg,"%d",&ardp_priority);
cur_arg += strspn(cur_arg,"-0123456789");
}
else if(argc > 2) {
tmp = sscanf(argv[1],"%d",&ardp_priority);
if (tmp == 1) {argc--;argv++;}
}
if(ardp_priority > ARDP_MAX_SPRI)
ardp_priority = ARDP_MAX_PRI;
if(ardp_priority < ARDP_MIN_PRI)
ardp_priority = ARDP_MIN_PRI;
break;
case 'X': /* regular expression match */
listflag |= AQ_LF_STRINGONLY;
expandflag = 0;
aqst.query_type = AQ_M_REGEX;
etype = AQ_M_EREGEX;
break;
case 'Z': /* substring (case insensitive) */
listflag |= AQ_LF_STRINGONLY;
expandflag = 0;
aqst.query_type = AQ_M_CI_SUBSTR;
etype = AQ_M_ECI_SUBSTR;
break;
case 'T': /* Status information for server */
Tflag = 1;
break;
case 'c': /* substring (case sensitive) */
aqst.query_type = AQ_CS_SUBSTR;
etype = AQ_ECS_SUBSTR;
break;
case 'e': /* exact match */
/* If -e specified by itself, then we use the */
/* default value of etype which is must be '=' */
eflag++;
break;
case 'f': /* Add a filter to the query */
if(argc < 3) {
fprintf(stderr, "%s: -f (filter) requires <filter-arg>\n",progname);
exit(1);
}
switch(*cur_arg++) {
case 'd':
aq_restrict(&aqst,"AR_DOMAIN",argv[1],',');
argv++; argc--;
break;
case 'p':
aq_restrict(&aqst,"AR_PATHCOMP",argv[1],' ');
argv++; argc--;
break;
default:
fprintf(stderr, "%s: -f (filter) must be immediately followed by 'd' or 'p'\n",progname);
exit(1);
}
break;
case 'h': /* Get host information */
expandflag = 0;
listflag &= (~AQ_LF_STRINGONLY);
listflag |= AQ_LF_HOSTINFO;
aqst.query_type = AQ_HOSTINFO;
break;
case 'k': /* substring (case sensitive) */
listflag |= AQ_LF_STRINGONLY;
if(expandflag == 0) expandflag = 1;
aqst.query_type = AQ_M_CS_SUBSTR;
etype = AQ_M_ECS_SUBSTR;
break;
case 'l': /* list one match per line */
if(expandflag == 2) {
fprintf(stderr, "%s: -l option incompatible with -E option\n", progname);
exit(1);
}
listflag |= AQ_LF_ONEPERLINE;
break;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
cur_arg--;
case 'm': /* max hits */
ptmp = -1;
if(*cur_arg && index("0123456789",*cur_arg)) {
sscanf(cur_arg,"%d",&ptmp);
cur_arg += strspn(cur_arg,"0123456789");
}
else if(argc > 1) {
tmp = sscanf(argv[1],"%d",&ptmp);
if(tmp == 1) {argc--;argv++;}
}
if(ptmp < 1) {
fprintf(stderr, "%s: -m option requires a value for max hits (>= 1)\n",
progname);
exit(1);
}
aqst.maxhits = ptmp;
aqst.maxmatch = ptmp;
aqst.maxhitpm = ptmp;
break;
case 'o': /* offset */
if(*cur_arg && index("0123456789",*cur_arg)) {
sscanf(cur_arg,"%d",&ptmp);
cur_arg += strspn(cur_arg,"0123456789");
}
else if(argc > 1) {
tmp = sscanf(argv[1],"%d",&ptmp);
if(tmp == 1) {argc--;argv++;}
}
if(ptmp < 0) {
fprintf(stderr, "%s: -o option requires a value for offset (>= 0)\n",
progname);
exit(1);
}
aqst.offset = ptmp;
break;
case 'r': /* regular expression search */
aqst.query_type = AQ_REGEX;
etype = AQ_EREGEX;
break;
case 's': /* substring (case insensitive) */
aqst.query_type = AQ_CI_SUBSTR;
etype = AQ_ECI_SUBSTR;
break;
case 't': /* sort inverted by date */
aqst.cmp_proc = AQ_INVDATECMP;
break;
case 'v': /* display version */
fprintf(stderr,"Prospero client - Version %s\n",
PFS_RELEASE);
versionflag++;
break;
case 'x': /* regular expression match */
listflag |= AQ_LF_STRINGONLY;
if(expandflag == 0) expandflag = 1;
aqst.query_type = AQ_M_REGEX;
etype = AQ_M_EREGEX;
break;
case 'z': /* substring (case insensitive) */
listflag |= AQ_LF_STRINGONLY;
if(expandflag == 0) expandflag = 1;
aqst.query_type = AQ_M_CI_SUBSTR;
etype = AQ_M_ECI_SUBSTR;
break;
default:
fprintf(stderr,"Usage: %s [-[cehkrsxz][ltMT][NM #][H host][f? <farg>]] string\n", progname);
exit(1);
}
}
argc--, argv++;
}
scandone:
/* If -e specified, then choose the exact version of -crs option */
if(eflag) aqst.query_type = etype;
/* If one per line don't expand */
if(listflag&AQ_LF_ONEPERLINE) expandflag = 0;
/* If only -v specified, return, but not an error */
if((argc != 1) && versionflag) exit(0);
if(!((argc == 1) || ((argc == 0) && (Mcount > 0)))) {
fprintf(stderr,"Usage: %s [-[cehkrsxz][ltMT][NM #][H host][f? <farg>]] string\n", progname);
fprintf(stderr," -c : case sensitive substring search\n");
fprintf(stderr," -e : exact string match (default)\n");
fprintf(stderr," -r : regular expression search\n");
fprintf(stderr," -s : case insensitive substring search\n");
fprintf(stderr," -K -k : case sensitive substring match\n");
fprintf(stderr," -X -x : regular expression match\n");
fprintf(stderr," -Z -z : case insensitive substring match\n");
fprintf(stderr," -h : ask for information about matching hosts\n");
fprintf(stderr,"-fd -fc <arg> : specify domain or component filter\n");
fprintf(stderr," -l : list one match per line\n");
fprintf(stderr," -t : sort inverted by date\n");
fprintf(stderr," -E : expand directory and query responses from server\n");
fprintf(stderr," -M -MM : display the message of the day (MM immediate)\n");
fprintf(stderr," -T : display status information for server\n");
fprintf(stderr," -N # : specifies query niceness level (optional 0-35765)\n");
fprintf(stderr," -m # : specifies maximum number of hits to return\n");
fprintf(stderr," -H host : specifies server host\n");
exit(1);
}
if(!(aqst.host)) {
fprintf(stderr, "%s: You must specify an archie server (use the -H <host> option)\n",
progname);
exit(1);
}
if(!(listflag & AQ_LF_ONEPERLINE)) {
printf("Prospero command line client to archie database\n\n");
printf(" Prospero version: %s\n", PFS_RELEASE);
#ifdef CLIENT_VERSION
printf(" Client version: %s\n", CLIENT_VERSION);
#endif
printf(" Server: %s\n", aqst.host);
}
/* If immediate MOTD, or MOTD only */
if((Mcount > 1) || ((Mcount == 1) && (argc == 0))) {
struct aquery mqst; /* For the motd request */
aq_init(&mqst);
mqst.query_type = AQ_MOTD_ONLY;
mqst.host = aqst.host;
mqst.flags |= AQ_MOTD;
tmp = aq_query(&mqst,mqst.flags);
if(mqst.motd) {
printf("Message of the day:%s\n",mqst.motd);
stfree(mqst.motd);
Mcount = -1; /* Remember that we displayed it */
aqst.flags &= (~AQ_MOTD); /* Don't ask again */
}
/* If MOTD only */
if(argc == 0) {
if(!mqst.motd) printf("Message of the day: not available\n");
printf("\n");
exit(0);
}
}
p_clear_errors();
aqst.string = argv[0];
if(Tflag == 0) tmp = aq_query(&aqst,aqst.flags);
else {
tmp = aq_query(&aqst,aqst.flags|AQ_ASYNC);
while(tmp == AQ_ACTIVE) {
fd_set readfds;
struct timeval selwait;
static int qpos = 0;
static int sys_time = 0;
FD_ZERO(&readfds);
FD_SET(aqst.wait_fd, &readfds);
selwait.tv_sec = aqst.retry_at.tv_sec - time(NULL);
if(selwait.tv_sec < 0) selwait.tv_sec = 0;
selwait.tv_usec = 0;
if(qpos != aqst.qpos) {
qpos = aqst.qpos;
printf(" Queue position: %d\n",qpos);
fflush(stdout);
}
if(sys_time != aqst.sys_time) {
sys_time = aqst.sys_time;
printf(" Est system time: %d\n", sys_time);
fflush(stdout);
}
select(aqst.wait_fd+1,&readfds,(fd_set *)0,(fd_set *)0,&selwait);
tmp = aq_query(&aqst,AQ_ASYNC);
}
}
if(tmp > 0) {
fprintf(stderr,"%s",progname);
perrmesg(" failed: ",0,NULL);
exit(1);
}
if(pwarn) pwarnmesg("WARNING: ",0,NULL);
/* If received motd and haven't yet displayed it */
if(aqst.motd && (Mcount >= 0)) {
if(aqst.flags & AQ_MOTD) printf("Message of the day:%s\n",
aqst.motd);
else fprintf(stderr,"Unanticipated message of the day:\n%s\n",
aqst.motd);
}
if((listflag & AQ_LF_STRINGONLY) && !(listflag & AQ_LF_ONEPERLINE)) {
printf("\n\nStrings matching query (%s):\n\n",aqst.string);
}
/* Display the results */
for(l = aqst.results; l; l = l->next) display_link(l,listflag);
if(!(listflag&AQ_LF_ONEPERLINE)) printf("\n");
if(expandflag > 0) expand_links(aqst.results,listflag,expandflag,"QUERY");
else vllfree(aqst.results);
exit(0);
}
/*
* display_link: Prints the value of a virtual link. If listflag does
* not have AQ_LF_ONEPERLINE set then the link is displayed
* in a format suitable for reading by humans. If listflag
* has AQ_LF_ONEPERLINE set all information is printed on a
* single line in a form suitable for parsing by programs.
*
* Flags: AQ_LF_ONEPERLINE - Output entries on a single line
* AQ_LF_HOSTINFO - Output attributes for host info only
* AQ_LF_ONLYSTRING - Output only the matching string
*
* NOTE: If AQ_LF_ONPERLINE is not set, this procedure uses static
* variables to detect when fields have changed since the last
* call. The display of field unchanged since the last call is
* suppressed.
*/
void
display_link(VLINK l, /* Link to be displayed */
int listflag) /* See above */
{
static struct tm *presenttime = NULL;
time_t now;
char linkpath[MAX_VPATH];
char archie_date[20];
char archie_hupdate[100];
char hostbuf[100];
int dirflag = 0;
int size = 0;
char *hipaddr = "";
char *modes = "";
char *gt_date = "";
int gt_year = 0;
int gt_mon = 0;
int gt_day = 0;
int gt_hour = 0;
int gt_min = 0;
PATTRIB ap;
/* First time called, set localtime */
if(!presenttime) {
(void) time(&now);
assert(P_IS_THIS_THREAD_MASTER());
presenttime = localtime(&now);
}
/* Initialize local buffers */
*archie_date = '\0';
*archie_hupdate = '\0';
/* Remember if we're looking at a directory */
if (sindex(l->target,"DIRECTORY")) dirflag = 1;
else dirflag = 0;
/* Extract the linkpath from the hsoname */
strcpy(linkpath,aq_lhsoname(l));
*(linkpath + (strlen(linkpath) - strlen(l->name) - 1)) = '\0';
aq_lhost(l,hostbuf,sizeof(hostbuf));
/* Is this a new host? */
if(!(listflag&(AQ_LF_ONEPERLINE|AQ_LF_STRINGONLY))) {
if (strcmp(hostbuf,lasthost) != 0) {
printf("\nHost %s\n\n",hostbuf);
strcpy(lasthost,hostbuf);
*lastpath = '\001';
}
}
/* Is this a new linkpath (location)? */
if (!(listflag&(AQ_LF_ONEPERLINE|AQ_LF_HOSTINFO|AQ_LF_STRINGONLY))) {
if(strcmp(linkpath,lastpath) != 0) {
printf(" Location: %s\n",(*linkpath ? linkpath : "/"));
strcpy(lastpath,linkpath);
}
}
/* Parse the attibutes of this link */
for (ap = l->lattrib; ap; ap = ap->next) {
if (strcmp(ap->aname,"SIZE") == 0) {
sscanf(ap->value.sequence->token,"%d",&size);
} else if(strcmp(ap->aname,"UNIX-MODES") == 0) {
modes = ap->value.sequence->token;
} else if(strcmp(ap->aname,"LAST-MODIFIED") == 0) {
gt_date = ap->value.sequence->token;
sscanf(gt_date,"%4d%2d%2d%2d%2d",&gt_year,
&gt_mon, &gt_day, &gt_hour, &gt_min);
if ((12 * (presenttime->tm_year + 1900 - gt_year) +
presenttime->tm_mon - gt_mon) > 6)
sprintf(archie_date,"%s %2d %4d",month_sname(gt_mon),
gt_day, gt_year);
else
sprintf(archie_date,"%s %2d %02d:%02d",month_sname(gt_mon),
gt_day, gt_hour, gt_min);
} else if(strcmp(ap->aname,"AR_H_LAST_MOD") == 0) {
gt_date = ap->value.sequence->token;
sscanf(gt_date,"%4d%2d%2d%2d%2d",&gt_year,
&gt_mon, &gt_day, &gt_hour, &gt_min);
sprintf(archie_hupdate,"%d %s %d %02d:%02d UTC",
gt_day, month_sname(gt_mon), gt_year, gt_hour, gt_min);
} else if(strcmp(ap->aname,"AR_H_IP_ADDR") == 0) {
hipaddr = ap->value.sequence->token;
}
}
/* Print this link's information */
if (listflag&AQ_LF_ONEPERLINE) {
if(listflag&AQ_LF_HOSTINFO) printf("%s %15s %s\n",gt_date, hipaddr,
hostbuf);
else if(listflag&AQ_LF_STRINGONLY) printf("%s\n",l->name);
else printf("%s %6d %s %s%s\n", gt_date, size,
hostbuf, aq_lhsoname(l), (dirflag ? "/" : ""));
}
else {
if(listflag&AQ_LF_HOSTINFO)
printf(" Last Updated: %s\n IP Address: %s\n",
archie_hupdate, hipaddr);
else if(listflag&AQ_LF_STRINGONLY) printf(" %s\n",l->name);
else printf(" %9s %s %10d %s %s\n",
(dirflag ? "DIRECTORY" : "FILE"),
modes,size,archie_date,l->name);
}
}
/* Note: This function frees l after expansion */
/* Do not disable this without thinking this through */
/* since it must unlink elements of the list before */
/* adding them to the aquery structure for expansion. */
/* Thus, if not freed, you may loose track of them */
int
expand_links(VLINK el, /* Links to be expanded */
int listflag, /* See above */
int expflag, /* Wether to continue expansion */
char *parent) /* Name of link being expanded */
{
struct aquery aqst; /* To make new queries */
VLINK clink, nlink, l;
char line[100];
char newparent[1000];
char hostbuf[100];
int npc;
int dircount = 0;
int tmp;
aq_init(&aqst);
/* Force display of host and path from display link (kludge) */
lastpath[0] = '\001'; lasthost[0] = '\001';
listflag &= (~(AQ_LF_STRINGONLY|AQ_LF_HOSTINFO));
nlink = el;
while(nlink) {
clink = nlink;
nlink = nlink->next;
if(strcmp(clink->target,"DIRECTORY") == 0) {
if(dircount++ == 0) printf("\nExpanding %s\n\n", parent);
aq_lhost(clink,hostbuf,sizeof(hostbuf));
if(strncmp(clink->hsoname,"ARCHIE/MATCH",12)==0) hostbuf[0] = '\0';
reenter:
if(*hostbuf) printf(" %s(%s): ", clink->name, hostbuf);
else printf(" %s: ", clink->name);
line[0] = '\0';
if((fgets(line,sizeof(line),stdin) == NULL) ||
(line[0] == 'q') || (line[0] == 'Q')) {
printf("\n");
exit(0);
}
if((line[0] == 'u') || (line[0] == 'y')) {
vllfree(clink);
return(dircount);
}
if((line[0] == '\n') || (line[0] == 'y') || (line[0] == 'Y') ||
(line[0] == 'e') || (line[0] == 'E')) {
strncpy(newparent,parent,sizeof(newparent));
npc = sizeof(newparent) - strlen(newparent) - 1;
if(npc-- > 1) strcat(newparent," ");
strncat(newparent,clink->name,npc);
newparent[sizeof(newparent)-1] = '\0';
aqst.query_type = AQ_EXP_LINK;
aqst.expand = clink;
clink->next = NULL;
clink->previous = NULL;
tmp = aq_query(&aqst,aqst.flags);
if(tmp > 0) {
fprintf(stderr,"%s",progname);
perrmesg(" failed: ",0,NULL);
}
if(pwarn) pwarnmesg("WARNING: ",0,NULL);
/* Display the results */
for(l = aqst.results; l; l = l->next) display_link(l,listflag);
if(expflag > 1) {
if(expand_links(aqst.results,listflag,expflag,newparent))
printf("\nReturned from expansion of %s %s\n\n",
parent,clink->name);
else printf("\n");
aqst.results = NULL;
}
else printf("\n");
aqst.expand = NULL;
aq_reset(&aqst);
}
else if((line[0] != 'n') && (line[0] != 'N') &&
(line[0] != 's') && (line[0] != 'S')) {
printf(" <CR> - expand, s - skip, u - up, q - quit\n");
goto reenter;
}
}
clink->next = NULL;
clink->previous = NULL;
vlfree(clink);
}
return(dircount);
}
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