/*------------------------------------------------------------------------- * * psql.c-- * an interactive front-end to postgreSQL * * Copyright (c) 1996, Regents of the University of California * * * IDENTIFICATION * $Header: /usr/local/cvsroot/pgsql/src/bin/psql/psql.c,v 1.99 1997/09/24 17:46:14 thomas Exp $ * *------------------------------------------------------------------------- */ #include #include #include #include #include #include #include /* for MAXPATHLEN */ #include #include #include #include #include "postgres.h" #include "libpq-fe.h" #include "pqsignal.h" #include "stringutils.h" #include "psqlHelp.h" #ifndef HAVE_STRDUP #include "strdup.h" #endif #ifdef HAVE_TERMIOS_H #include #endif #ifdef HAVE_LIBREADLINE #ifdef HAVE_READLINE_H #include #if defined(HAVE_HISTORY) #include #endif #else #include #if defined(HAVE_READLINE_HISTORY_H) #include #endif #endif #endif /* This prompt string is assumed to have at least 3 characters by code in MainLoop(). * A character two characters from the end is replaced each time by a mode character. */ #define PROMPT "=> " #define PROMPT_READY '=' #define PROMPT_CONTINUE '-' #define PROMPT_COMMENT '*' #define PROMPT_QUOTE '\'' /* Backslash command handling: * 0 - send currently constructed query to backend (i.e. we got a \g) * 1 - skip processing of this line, continue building up query * 2 - terminate processing of this query entirely * 3 - new query supplied by edit */ #define CMD_UNKNOWN -1 #define CMD_SEND 0 #define CMD_SKIP_LINE 1 #define CMD_TERMINATE 2 #define CMD_NEWEDIT 3 #define MAX_QUERY_BUFFER 20000 #define COPYBUFSIZ 8192 #define DEFAULT_FIELD_SEP "|" #define DEFAULT_EDITOR "vi" #define DEFAULT_SHELL "/bin/sh" typedef struct _psqlSettings { PGconn *db; /* connection to backend */ FILE *queryFout; /* where to send the query results */ PQprintOpt opt; /* options to be passed to PQprint */ char *prompt; /* prompt to display */ char *gfname; /* one-shot file output argument for \g */ bool notty; /* input or output is not a tty */ bool pipe; /* queryFout is from a popen() */ bool echoQuery; /* echo the query before sending it */ bool quiet; /* run quietly, no messages, no promt */ bool singleStep; /* prompt before for each query */ bool singleLineMode; /* query terminated by newline */ bool useReadline; /* use libreadline routines */ bool getPassword; /* prompt the user for a username and * password */ } PsqlSettings; /* declarations for functions in this file */ static void usage(char *progname); static void slashUsage(); static void handleCopyOut(PGresult *res, bool quiet, FILE *copystream); static void handleCopyIn(PGresult *res, const bool mustprompt, FILE *copystream); static int tableList(PsqlSettings *pset, bool deep_tablelist, char info_type); static int tableDesc(PsqlSettings *pset, char *table); static int rightsList(PsqlSettings *pset); static void prompt_for_password(char *username, char *password); static char * make_connect_string(char *host, char *port, char *dbname, char *username, char *password); static char *gets_noreadline(char *prompt, FILE *source); static char *gets_readline(char *prompt, FILE *source); static char *gets_fromFile(char *prompt, FILE *source); static int listAllDbs(PsqlSettings *pset); static void SendQuery(bool *success_p, PsqlSettings *pset, const char *query, const bool copy_in, const bool copy_out, FILE *copystream); static int HandleSlashCmds(PsqlSettings *pset, char *line, char *query); static int MainLoop(PsqlSettings *pset, FILE *source); /* probably should move this into libpq */ void PQprint(FILE *fp, PGresult *res, PQprintOpt *po ); static FILE *setFout(PsqlSettings *pset, char *fname); /* * usage print out usage for command line arguments */ static void usage(char *progname) { fprintf(stderr, "Usage: %s [options] [dbname]\n", progname); fprintf(stderr, "\t -a authsvc set authentication service\n"); fprintf(stderr, "\t -A turn off alignment when printing out attributes\n"); fprintf(stderr, "\t -c query run single query (slash commands too)\n"); fprintf(stderr, "\t -d dbName specify database name\n"); fprintf(stderr, "\t -e echo the query sent to the backend\n"); fprintf(stderr, "\t -f filename use file as a source of queries\n"); fprintf(stderr, "\t -F sep set the field separator (default is '|')\n"); fprintf(stderr, "\t -h host set database server host\n"); fprintf(stderr, "\t -H turn on html3.0 table output\n"); fprintf(stderr, "\t -l list available databases\n"); fprintf(stderr, "\t -n don't use readline library\n"); fprintf(stderr, "\t -o filename send output to filename or (|pipe)\n"); fprintf(stderr, "\t -p port set port number\n"); fprintf(stderr, "\t -q run quietly (no messages, no prompts)\n"); fprintf(stderr, "\t -s single step mode (prompts for each query)\n"); fprintf(stderr, "\t -S single line mode (i.e. query terminated by newline)\n"); fprintf(stderr, "\t -t turn off printing of headings and row count\n"); fprintf(stderr, "\t -T html set html3.0 table command options (cf. -H)\n"); fprintf(stderr, "\t -u ask for a username and password for authentication\n"); fprintf(stderr, "\t -x turn on expanded output (field names on left)\n"); exit(1); } /* * slashUsage print out usage for the backslash commands */ static char * on(bool f) { return f ? "on" : "off"; } static void slashUsage(PsqlSettings *pset) { int usePipe = 0; char *pagerenv; FILE *fout; if (pset->notty == 0 && (pagerenv = getenv("PAGER")) && (pagerenv[0] != '\0') && (fout = popen(pagerenv, "w"))) { usePipe = 1; pqsignal(SIGPIPE, SIG_IGN); } else fout = stdout; fprintf(fout, " \\? -- help\n"); fprintf(fout, " \\a -- toggle field-alignment (currenty %s)\n", on(pset->opt.align)); fprintf(fout, " \\C [] -- set html3 caption (currently '%s')\n", pset->opt.caption ? pset->opt.caption : ""); fprintf(fout, " \\connect -- connect to new database (currently '%s')\n", PQdb(pset->db)); fprintf(fout, " \\copy table {from | to} \n"); fprintf(fout, " \\d [] -- list tables and indices in database or columns in
, * for all\n"); fprintf(fout, " \\di -- list only indices in database\n"); fprintf(fout, " \\ds -- list only sequences in database\n"); fprintf(fout, " \\dt -- list only tables in database\n"); fprintf(fout, " \\e [] -- edit the current query buffer or , \\E execute too\n"); fprintf(fout, " \\f [] -- change field separater (currently '%s')\n", pset->opt.fieldSep); fprintf(fout, " \\g [] [|] -- send query to backend [and results in or pipe]\n"); fprintf(fout, " \\h [] -- help on syntax of sql commands, * for all commands\n"); fprintf(fout, " \\H -- toggle html3 output (currently %s)\n", on(pset->opt.html3)); fprintf(fout, " \\i -- read and execute queries from filename\n"); fprintf(fout, " \\l -- list all databases\n"); fprintf(fout, " \\m -- toggle monitor-like table display (currently %s)\n", on(pset->opt.standard)); fprintf(fout, " \\o [] [|] -- send all query results to stdout, , or pipe\n"); fprintf(fout, " \\p -- print the current query buffer\n"); fprintf(fout, " \\q -- quit\n"); fprintf(fout, " \\r -- reset(clear) the query buffer\n"); fprintf(fout, " \\s [] -- print history or save it in \n"); fprintf(fout, " \\t -- toggle table headings and row count (currently %s)\n", on(pset->opt.header)); fprintf(fout, " \\T [] -- set html3.0
options (currently '%s')\n", pset->opt.tableOpt ? pset->opt.tableOpt : ""); fprintf(fout, " \\x -- toggle expanded output (currently %s)\n", on(pset->opt.expanded)); fprintf(fout, " \\z -- list current grant/revoke permissions\n"); fprintf(fout, " \\! [] -- shell escape or command\n"); if (usePipe) { pclose(fout); pqsignal(SIGPIPE, SIG_DFL); } } static PGresult * PSQLexec(PsqlSettings *pset, char *query) { PGresult *res; res = PQexec(pset->db, query); if (!res) fputs(PQerrorMessage(pset->db), stderr); else { if (PQresultStatus(res) == PGRES_COMMAND_OK || PQresultStatus(res) == PGRES_TUPLES_OK) return res; if (!pset->quiet) fputs(PQerrorMessage(pset->db), stderr); PQclear(res); } return NULL; } /* * listAllDbs * * list all the databases in the system returns 0 if all went well * * */ static int listAllDbs(PsqlSettings *pset) { PGresult *results; char *query = "select * from pg_database;"; if (!(results = PSQLexec(pset, query))) return 1; else { PQprint(pset->queryFout, results, &pset->opt); PQclear(results); return 0; } } /* * List The Database Tables returns 0 if all went well * */ int tableList(PsqlSettings *pset, bool deep_tablelist, char info_type) { char listbuf[256]; int nColumns; int i; char *rk; char *rr; PGresult *res; listbuf[0] = '\0'; strcat(listbuf, "SELECT usename, relname, relkind, relhasrules"); strcat(listbuf, " FROM pg_class, pg_user "); switch (info_type) { case 't': strcat(listbuf, "WHERE ( relkind = 'r') "); break; case 'i': strcat(listbuf, "WHERE ( relkind = 'i') "); break; case 'S': strcat(listbuf, "WHERE ( relkind = 'S') "); break; case 'b': default: strcat(listbuf, "WHERE ( relkind = 'r' OR relkind = 'i' OR relkind = 'S') "); break; } strcat(listbuf, " and relname !~ '^pg_'"); strcat(listbuf, " and relname !~ '^xin[vx][0-9]+'"); /* * the usesysid = relowner won't work on stock 1.0 dbs, need to add in * the int4oideq function */ strcat(listbuf, " and usesysid = relowner"); strcat(listbuf, " ORDER BY relname "); if (!(res = PSQLexec(pset, listbuf))) return -1; /* first, print out the attribute names */ nColumns = PQntuples(res); if (nColumns > 0) { if (deep_tablelist) { /* describe everything here */ char **table; table = (char **) malloc(nColumns * sizeof(char *)); if (table == NULL) perror("malloc"); /* load table table */ for (i = 0; i < nColumns; i++) { table[i] = (char *) malloc(PQgetlength(res, i, 1) * sizeof(char) + 1); if (table[i] == NULL) perror("malloc"); strcpy(table[i], PQgetvalue(res, i, 1)); } PQclear(res); /* PURIFY */ for (i = 0; i < nColumns; i++) { tableDesc(pset, table[i]); } free(table); } else { /* Display the information */ printf("\nDatabase = %s\n", PQdb(pset->db)); printf(" +------------------+----------------------------------+----------+\n"); printf(" | Owner | Relation | Type |\n"); printf(" +------------------+----------------------------------+----------+\n"); /* next, print out the instances */ for (i = 0; i < PQntuples(res); i++) { printf(" | %-16.16s", PQgetvalue(res, i, 0)); printf(" | %-32.32s | ", PQgetvalue(res, i, 1)); rk = PQgetvalue(res, i, 2); rr = PQgetvalue(res, i, 3); if (strcmp(rk, "r") == 0) printf("%-8.8s |", (rr[0] == 't') ? "view?" : "table"); else if (strcmp(rk, "i") == 0) printf("%-8.8s |", "index"); else printf("%-8.8s |", "sequence"); printf("\n"); } printf(" +------------------+----------------------------------+----------+\n"); PQclear(res); } return (0); } else { PQclear(res); /* PURIFY */ switch (info_type) { case 't': fprintf(stderr, "Couldn't find any tables!\n"); break; case 'i': fprintf(stderr, "Couldn't find any indices!\n"); break; case 'S': fprintf(stderr, "Couldn't find any sequences!\n"); break; case 'b': default: fprintf(stderr, "Couldn't find any tables, sequences or indices!\n"); break; } return (-1); } } /* * List Tables Grant/Revoke Permissions returns 0 if all went well * */ int rightsList(PsqlSettings *pset) { char listbuf[256]; int nColumns; int i; PGresult *res; listbuf[0] = '\0'; strcat(listbuf, "SELECT relname, relacl"); strcat(listbuf, " FROM pg_class, pg_user "); strcat(listbuf, "WHERE ( relkind = 'r' OR relkind = 'i') "); strcat(listbuf, " and relname !~ '^pg_'"); strcat(listbuf, " and relname !~ '^xin[vx][0-9]+'"); strcat(listbuf, " and usesysid = relowner"); strcat(listbuf, " ORDER BY relname "); if (!(res = PSQLexec(pset, listbuf))) return -1; nColumns = PQntuples(res); if (nColumns > 0) { /* Display the information */ printf("\nDatabase = %s\n", PQdb(pset->db)); printf(" +------------------+----------------------------------------------------+\n"); printf(" | Relation | Grant/Revoke Permissions |\n"); printf(" +------------------+----------------------------------------------------+\n"); /* next, print out the instances */ for (i = 0; i < PQntuples(res); i++) { printf(" | %-16.16s", PQgetvalue(res, i, 0)); printf(" | %-50.50s | ", PQgetvalue(res, i, 1)); printf("\n"); } printf(" +------------------+----------------------------------------------------+\n"); PQclear(res); return (0); } else { fprintf(stderr, "Couldn't find any tables!\n"); return (-1); } } /* * Describe a table * * Describe the columns in a database table. returns 0 if all went well * * */ int tableDesc(PsqlSettings *pset, char *table) { char descbuf[256]; int nColumns; char *rtype; int i; int rsize; PGresult *res; /* Build the query */ for (i = strlen(table); i >= 0; i--) if (isupper(table[i])) table[i] = tolower(table[i]); descbuf[0] = '\0'; strcat(descbuf, "SELECT a.attnum, a.attname, t.typname, a.attlen, a.attnotnull"); strcat(descbuf, " FROM pg_class c, pg_attribute a, pg_type t "); strcat(descbuf, " WHERE c.relname = '"); strcat(descbuf, table); strcat(descbuf, "'"); strcat(descbuf, " and a.attnum > 0 "); strcat(descbuf, " and a.attrelid = c.oid "); strcat(descbuf, " and a.atttypid = t.oid "); strcat(descbuf, " ORDER BY attnum "); if (!(res = PSQLexec(pset, descbuf))) return -1; /* first, print out the attribute names */ nColumns = PQntuples(res); if (nColumns > 0) { /* * * Display the information */ printf("\nTable = %s\n", table); printf("+----------------------------------+----------------------------------+-------+\n"); printf("| Field | Type | Length|\n"); printf("+----------------------------------+----------------------------------+-------+\n"); /* next, print out the instances */ for (i = 0; i < PQntuples(res); i++) { printf("| %-32.32s | ", PQgetvalue(res, i, 1)); rtype = PQgetvalue(res, i, 2); rsize = atoi(PQgetvalue(res, i, 3)); if (strcmp(rtype, "text") == 0) { printf("%-32.32s |", rtype); printf("%6s |", "var"); } else if (strcmp(rtype, "bpchar") == 0) { printf("%-32.32s |", "(bp)char"); printf("%6i |", rsize > 0 ? rsize - 4 : 0); } else if (strcmp(rtype, "varchar") == 0) { printf("%-32.32s |", rtype); printf("%6i |", rsize > 0 ? rsize - 4 : 0); } else { /* array types start with an underscore */ if (rtype[0] != '_') printf("%-32.32s |", rtype); else { char *newname; newname = malloc(strlen(rtype) + 2); strcpy(newname, rtype + 1); strcat(newname, "[]"); printf("%-32.32s |", newname); free(newname); } if (rsize > 0) printf("%6i |", rsize); else printf("%6s |", "var"); } printf("\n"); } printf("+----------------------------------+----------------------------------+-------+\n"); PQclear(res); return (0); } else { fprintf(stderr, "Couldn't find table %s!\n", table); return (-1); } } typedef char *(*READ_ROUTINE) (char *prompt, FILE *source); /* * gets_noreadline prompt source gets a line of input without calling * readline, the source is ignored */ static char * gets_noreadline(char *prompt, FILE *source) { fputs(prompt, stdout); fflush(stdout); return (gets_fromFile(prompt, stdin)); } /* * gets_readline prompt source the routine to get input from GNU readline(), * the source is ignored the prompt argument is used as the prompting string */ static char * gets_readline(char *prompt, FILE *source) { char *s; #ifdef HAVE_LIBREADLINE s = readline(prompt); #else char buf[500]; printf("%s", prompt); s = fgets(buf, 500, stdin); #endif fputc('\r', stdout); fflush(stdout); return s; } /* * gets_fromFile prompt source * * the routine to read from a file, the prompt argument is ignored the source * argument is a FILE * */ static char * gets_fromFile(char *prompt, FILE *source) { char *line; int len; line = malloc(MAX_QUERY_BUFFER + 1); /* read up to MAX_QUERY_BUFFER characters */ if (fgets(line, MAX_QUERY_BUFFER, source) == NULL) { free(line); return NULL; } line[MAX_QUERY_BUFFER - 1] = '\0'; len = strlen(line); if (len == MAX_QUERY_BUFFER) { fprintf(stderr, "line read exceeds maximum length. Truncating at %d\n", MAX_QUERY_BUFFER); } return line; } /* * SendQuery: send the query string to the backend return *success_p = 1 if * the query executed successfully returns *success_p = 0 otherwise */ static void SendQuery(bool *success_p, PsqlSettings *pset, const char *query, const bool copy_in, const bool copy_out, FILE *copystream) { PGresult *results; PGnotify *notify; if (pset->singleStep) fprintf(stdout, "\n**************************************" "*****************************************\n"); if (pset->echoQuery || pset->singleStep) { fprintf(stderr, "QUERY: %s\n", query); fflush(stderr); } if (pset->singleStep) { fprintf(stdout, "\n**************************************" "*****************************************\n"); fflush(stdout); printf("\npress return to continue ..\n"); gets_fromFile("", stdin); } results = PQexec(pset->db, query); if (results == NULL) { fprintf(stderr, "%s", PQerrorMessage(pset->db)); *success_p = false; } else { switch (PQresultStatus(results)) { case PGRES_TUPLES_OK: if (pset->gfname) { PsqlSettings settings_copy = *pset; FILE *fp; settings_copy.queryFout = stdout; fp = setFout(&settings_copy, pset->gfname); if (!fp || fp == stdout) { *success_p = false; break; } else *success_p = true; PQprint(fp, results, &pset->opt); if (settings_copy.pipe) pclose(fp); else fclose(fp); free(pset->gfname); pset->gfname = NULL; break; } else { *success_p = true; PQprint(pset->queryFout, results, &(pset->opt)); fflush(pset->queryFout); } break; case PGRES_EMPTY_QUERY: *success_p = true; break; case PGRES_COMMAND_OK: *success_p = true; if (!pset->quiet) printf("%s\n", PQcmdStatus(results)); break; case PGRES_COPY_OUT: *success_p = true; if (copy_out) { handleCopyOut(results, pset->quiet, copystream); } else { if (!pset->quiet) printf("Copy command returns...\n"); handleCopyOut(results, pset->quiet, stdout); } break; case PGRES_COPY_IN: *success_p = true; if (copy_in) handleCopyIn(results, false, copystream); else handleCopyIn(results, !pset->quiet, stdin); break; case PGRES_NONFATAL_ERROR: case PGRES_FATAL_ERROR: case PGRES_BAD_RESPONSE: *success_p = false; fprintf(stderr, "%s", PQerrorMessage(pset->db)); break; } if (PQstatus(pset->db) == CONNECTION_BAD) { fprintf(stderr, "We have lost the connection to the backend, so " "further processing is impossible. " "Terminating.\n"); exit(2); /* we are out'ta here */ } /* check for asynchronous returns */ notify = PQnotifies(pset->db); if (notify) { fprintf(stderr, "ASYNC NOTIFY of '%s' from backend pid '%d' received\n", notify->relname, notify->be_pid); free(notify); } if (results) PQclear(results); } } static void editFile(char *fname) { char *editorName; char *sys; editorName = getenv("EDITOR"); if (!editorName) editorName = DEFAULT_EDITOR; sys = malloc(strlen(editorName) + strlen(fname) + 32 + 1); if (!sys) { perror("malloc"); exit(1); } sprintf(sys, "exec '%s' '%s'", editorName, fname); system(sys); free(sys); } static bool toggle(PsqlSettings *pset, bool *sw, char *msg) { *sw = !*sw; if (!pset->quiet) printf("turned %s %s\n", on(*sw), msg); return *sw; } static void unescape(char *dest, const char *source) { /*----------------------------------------------------------------------------- Return as the string the value of string with escape sequences turned into the bytes they represent. -----------------------------------------------------------------------------*/ char *p; bool esc; /* Last character we saw was the escape * character (/) */ esc = false; /* Haven't seen escape character yet */ for (p = (char *) source; *p; p++) { char c; /* Our output character */ if (esc) { switch (*p) { case 'n': c = '\n'; break; case 'r': c = '\r'; break; case 't': c = '\t'; break; case 'f': c = '\f'; break; case '\\': c = '\\'; break; default: c = *p; } esc = false; } else if (*p == '\\') { esc = true; c = ' '; /* meaningless, but compiler doesn't know * that */ } else { c = *p; esc = false; } if (!esc) *dest++ = c; } *dest = '\0'; /* Terminating null character */ } static void parse_slash_copy(const char *args, char *table, const int table_len, char *file, const int file_len, bool *from_p, bool *error_p) { char work_args[200]; /* * A copy of the \copy command arguments, except that we modify it as * we parse to suit our parsing needs. */ char *table_tok, *fromto_tok; strncpy(work_args, args, sizeof(work_args)); work_args[sizeof(work_args) - 1] = '\0'; *error_p = false; /* initial assumption */ table_tok = strtok(work_args, " "); if (table_tok == NULL) { fprintf(stderr, "\\copy needs arguments.\n"); *error_p = true; } else { strncpy(table, table_tok, table_len); file[table_len - 1] = '\0'; fromto_tok = strtok(NULL, " "); if (fromto_tok == NULL) { fprintf(stderr, "'FROM' or 'TO' must follow table name.\n"); *error_p = true; } else { if (strcasecmp(fromto_tok, "from") == 0) *from_p = true; else if (strcasecmp(fromto_tok, "to") == 0) *from_p = false; else { fprintf(stderr, "Unrecognized token found where " "'FROM' or 'TO' expected: '%s'.\n", fromto_tok); *error_p = true; } if (!*error_p) { char *file_tok; file_tok = strtok(NULL, " "); if (file_tok == NULL) { fprintf(stderr, "A file pathname must follow '%s'.\n", fromto_tok); *error_p = true; } else { strncpy(file, file_tok, file_len); file[file_len - 1] = '\0'; if (strtok(NULL, " ") != NULL) { fprintf(stderr, "You have extra tokens after the filename.\n"); *error_p = true; } } } } } } static void do_copy(const char *args, PsqlSettings *pset) { /*--------------------------------------------------------------------------- Execute a \copy command (frontend copy). We have to open a file, then submit a COPY query to the backend and either feed it data from the file or route its response into the file. We do a text copy with default (tab) column delimiters. Some day, we should do all the things a backend copy can do. ----------------------------------------------------------------------------*/ char query[200]; /* The COPY command we send to the back end */ bool from; /* The direction of the copy is from a file to a table. */ char file[MAXPATHLEN + 1]; /* The pathname of the file from/to which we copy */ char table[NAMEDATALEN]; /* The name of the table from/to which we copy */ bool syntax_error; /* The \c command has invalid syntax */ FILE *copystream; parse_slash_copy(args, table, sizeof(table), file, sizeof(file), &from, &syntax_error); if (!syntax_error) { strcpy(query, "COPY "); strcat(query, table); if (from) strcat(query, " FROM stdin"); else strcat(query, " TO stdout"); if (from) { copystream = fopen(file, "r"); } else { copystream = fopen(file, "w"); } if (copystream == NULL) fprintf(stderr, "Unable to open file %s which to copy, errno = %s (%d).", from ? "from" : "to", strerror(errno), errno); else { bool success;/* The query succeeded at the backend */ SendQuery(&success, pset, query, from, !from, copystream); fclose(copystream); if (!pset->quiet) { if (success) printf("Successfully copied.\n"); else printf("Copy failed.\n"); } } } } static void do_connect(const char *new_dbname, const char *new_user, PsqlSettings *pset) { if (!new_dbname) fprintf(stderr, "\\connect must be followed by a database name\n"); else if (new_user != NULL && pset->getPassword) fprintf(stderr, "You can't specify a username when using passwords.\n"); else { PGconn *olddb = pset->db; static char *userenv = NULL; char *old_userenv = NULL; const char *dbparam; if (new_user != NULL) { /* * PQsetdb() does not allow us to specify the user, so we have * to do it via PGUSER */ if (userenv != NULL) old_userenv = userenv; userenv = malloc(strlen("PGUSER=") + strlen(new_user) + 1); sprintf(userenv, "PGUSER=%s", new_user); /* putenv() may continue to use memory as part of environment */ putenv(userenv); /* can delete old memory if we malloc'ed it */ if (old_userenv != NULL) free(old_userenv); } if (strcmp(new_dbname, "-") != 0) dbparam = new_dbname; else dbparam = PQdb(olddb); pset->db = PQsetdb(PQhost(olddb), PQport(olddb), NULL, NULL, dbparam); if (!pset->quiet) { if (!new_user) printf("connecting to new database: %s\n", dbparam); else if (dbparam != new_dbname) printf("connecting as new user: %s\n", new_user); else printf("connecting to new database: %s as user: %s\n", dbparam, new_user); } if (PQstatus(pset->db) == CONNECTION_BAD) { fprintf(stderr, "%s\n", PQerrorMessage(pset->db)); fprintf(stderr, "Could not connect to new database. exiting\n"); exit(2); } else { PQfinish(olddb); free(pset->prompt); pset->prompt = malloc(strlen(PQdb(pset->db)) + 10); sprintf(pset->prompt, "%s%s", PQdb(pset->db), PROMPT); } } } static void do_edit(const char *filename_arg, char *query, int *status_p) { int fd; char tmp[64]; char *fname; int cc; const int ql = strlen(query); bool error; if (filename_arg) { fname = (char *) filename_arg; error = false; } else { sprintf(tmp, "/tmp/psql.%ld.%ld", (long) geteuid(), (long) getpid()); fname = tmp; unlink(tmp); if (ql > 0) { if ((fd = open(tmp, O_EXCL | O_CREAT | O_WRONLY, 0600)) == -1) { perror(tmp); error = true; } else { if (query[ql - 1] != '\n') strcat(query, "\n"); if (write(fd, query, ql) != ql) { perror(tmp); close(fd); unlink(tmp); error = true; } else error = false; close(fd); } } else error = false; } if (error) *status_p = CMD_SKIP_LINE; else { editFile(fname); if ((fd = open(fname, O_RDONLY)) == -1) { perror(fname); if (!filename_arg) unlink(fname); *status_p = CMD_SKIP_LINE; } else { if ((cc = read(fd, query, MAX_QUERY_BUFFER)) == -1) { perror(fname); close(fd); if (!filename_arg) unlink(fname); *status_p = CMD_SKIP_LINE; } else { query[cc] = '\0'; close(fd); if (!filename_arg) unlink(fname); rightTrim(query); *status_p = CMD_NEWEDIT; } } } } static void do_help(PsqlSettings *pset, const char *topic) { if (!topic) { char left_center_right; /* Which column we're displaying */ int i; /* Index into QL_HELP[] */ printf("type \\h where is one of the following:\n"); left_center_right = 'L';/* Start with left column */ i = 0; while (QL_HELP[i].cmd != NULL) { switch (left_center_right) { case 'L': printf(" %-25s", QL_HELP[i].cmd); left_center_right = 'C'; break; case 'C': printf("%-25s", QL_HELP[i].cmd); left_center_right = 'R'; break; case 'R': printf("%-25s\n", QL_HELP[i].cmd); left_center_right = 'L'; break; } i++; } if (left_center_right != 'L') puts("\n"); printf("type \\h * for a complete description of all commands\n"); } else { int i; /* Index into QL_HELP[] */ bool help_found; /* We found the help he asked for */ int usePipe = 0; char *pagerenv; FILE *fout; if (strcmp(topic, "*") == 0 && (pset->notty == 0) && (pagerenv = getenv("PAGER")) && (pagerenv[0] != '\0') && (fout = popen(pagerenv, "w"))) { usePipe = 1; pqsignal(SIGPIPE, SIG_IGN); } else fout = stdout; help_found = false; /* Haven't found it yet */ for (i = 0; QL_HELP[i].cmd; i++) { if (strcmp(QL_HELP[i].cmd, topic) == 0 || strcmp(topic, "*") == 0) { help_found = true; fprintf(fout, "Command: %s\n", QL_HELP[i].cmd); fprintf(fout, "Description: %s\n", QL_HELP[i].help); fprintf(fout, "Syntax:\n"); fprintf(fout, "%s\n", QL_HELP[i].syntax); fprintf(fout, "\n"); } } if (usePipe) { pclose(fout); pqsignal(SIGPIPE, SIG_DFL); } if (!help_found) fprintf(stderr, "command not found, " "try \\h with no arguments to see available help\n"); } } static void do_shell(const char *command) { if (!command) { char *sys; char *shellName; shellName = getenv("SHELL"); if (shellName == NULL) shellName = DEFAULT_SHELL; sys = malloc(strlen(shellName) + 16); if (!sys) { perror("malloc"); exit(1); } sprintf(sys, "exec %s", shellName); system(sys); free(sys); } else system(command); } /* * HandleSlashCmds: * * Handles all the different commands that start with \ db_ptr is a pointer to * the TgDb* structure line is the current input line prompt_ptr is a pointer * to the prompt string, a pointer is used because the prompt can be used * with a connection to a new database. * Returns a status: * 0 - send currently constructed query to backend (i.e. we got a \g) * 1 - skip processing of this line, continue building up query * 2 - terminate processing of this query entirely * 3 - new query supplied by edit */ static int HandleSlashCmds(PsqlSettings *pset, char *line, char *query) { int status = CMD_SKIP_LINE; char *optarg; /* * Pointer inside the string to the argument of the slash * command, assuming it is a one-character slash command. If it's not * a one-character command, this is meaningless. */ char *optarg2; /* * Pointer inside the string to the argument of the slash * command assuming it's not a one-character command. If it's a * one-character command, this is meaningless. */ char *cmd; /* * String: value of the slash command, less the slash and with escape * sequences decoded. */ int blank_loc; /* Offset within of first blank */ cmd = malloc(strlen(line)); /* unescaping better not make string grow. */ unescape(cmd, line + 1); /* sets cmd string */ if (strlen(cmd) >= 1 && cmd[strlen(cmd) - 1] == ';') /* strip trailing ; */ cmd[strlen(cmd) - 1] = '\0'; /* * Originally, there were just single character commands. Now, we * define some longer, friendly commands, but we have to keep the old * single character commands too. \c used to be what \connect is now. * Complicating matters is the fact that with the single-character * commands, you can start the argument right after the single * character, so "\copy" would mean "connect to database named 'opy'". */ if (strlen(cmd) > 1) optarg = cmd + 1 + strspn(cmd + 1, " \t"); else optarg = NULL; blank_loc = strcspn(cmd, " \t"); if (blank_loc == 0 || !cmd[blank_loc]) optarg2 = NULL; else optarg2 = cmd + blank_loc + strspn(cmd + blank_loc, " \t"); switch (cmd[0]) { case 'a': /* toggles to align fields on output */ toggle(pset, &pset->opt.align, "field alignment"); break; case 'C': /* define new caption */ if (pset->opt.caption) { free(pset->opt.caption); pset->opt.caption = NULL; } if (optarg && !(pset->opt.caption = strdup(optarg))) { perror("malloc"); exit(CMD_TERMINATE); } break; case 'c': { if (strncmp(cmd, "copy ", strlen("copy ")) == 0) do_copy(optarg2, pset); else if (strncmp(cmd, "connect ", strlen("connect ")) == 0 || strcmp(cmd, "connect") == 0 /* issue error message */ ) { char *optarg3 = NULL; int blank_loc2; if (optarg2) { blank_loc2 = strcspn(optarg2, " \t"); if (blank_loc2 == 0 || *(optarg2 + blank_loc2) == '\0') optarg3 = NULL; else { optarg3 = optarg2 + blank_loc2 + strspn(optarg2 + blank_loc2, " \t"); *(optarg2 + blank_loc2) = '\0'; } } do_connect(optarg2, optarg3, pset); } else { char *optarg3 = NULL; int blank_loc2; if (optarg) { blank_loc2 = strcspn(optarg, " \t"); if (blank_loc2 == 0 || *(optarg + blank_loc2) == '\0') optarg3 = NULL; else { optarg3 = optarg + blank_loc2 + strspn(optarg + blank_loc2, " \t"); *(optarg + blank_loc2) = '\0'; } } do_connect(optarg, optarg3, pset); } } break; case 'd': /* \d describe tables or columns in a * table */ if (strncmp(cmd, "dt", 2) == 0) { /* only tables */ tableList(pset, 0, 't'); } else if (strncmp(cmd, "di", 2) == 0) { /* only indices */ tableList(pset, 0, 'i'); } else if (strncmp(cmd, "ds", 2) == 0) { /* only sequences */ tableList(pset, 0, 'S'); } else if (!optarg) { /* show tables, sequences and indices */ tableList(pset, 0, 'b'); } else if (strcmp(optarg, "*") == 0) { /* show everything */ if (tableList(pset, 0, 'b') == 0) tableList(pset, 1, 'b'); } else { /* describe the specified table */ tableDesc(pset, optarg); } break; case 'e': /* edit */ { do_edit(optarg, query, &status); break; } case 'E': { FILE *fd; static char *lastfile; struct stat st, st2; if (optarg) { if (lastfile) free(lastfile); lastfile = malloc(strlen(optarg + 1)); if (!lastfile) { perror("malloc"); exit(CMD_TERMINATE); } strcpy(lastfile, optarg); } else if (!lastfile) { fprintf(stderr, "\\r must be followed by a file name initially\n"); break; } stat(lastfile, &st); editFile(lastfile); if ((stat(lastfile, &st2) == -1) || ((fd = fopen(lastfile, "r")) == NULL)) { perror(lastfile); break; } if (st2.st_mtime == st.st_mtime) { if (!pset->quiet) fprintf(stderr, "warning: %s not modified. query not executed\n", lastfile); fclose(fd); break; } MainLoop(pset, fd); fclose(fd); break; } case 'f': { char *fs = DEFAULT_FIELD_SEP; if (optarg) fs = optarg; if (pset->opt.fieldSep) free(pset->opt.fieldSep); if (!(pset->opt.fieldSep = strdup(fs))) { perror("malloc"); exit(CMD_TERMINATE); } if (!pset->quiet) printf("field separator changed to '%s'\n", pset->opt.fieldSep); break; } case 'g': /* \g means send query */ if (!optarg) pset->gfname = NULL; else if (!(pset->gfname = strdup(optarg))) { perror("malloc"); exit(CMD_TERMINATE); } status = CMD_SEND; break; case 'h': /* help */ { do_help(pset, optarg); break; } case 'i': /* \i is include file */ { FILE *fd; if (!optarg) { fprintf(stderr, "\\i must be followed by a file name\n"); break; } if ((fd = fopen(optarg, "r")) == NULL) { fprintf(stderr, "file named %s could not be opened\n", optarg); break; } MainLoop(pset, fd); fclose(fd); break; } case 'l': /* \l is list database */ listAllDbs(pset); break; case 'H': if (toggle(pset, &pset->opt.html3, "HTML3.0 tabular output")) pset->opt.standard = 0; break; case 'o': setFout(pset, optarg); break; case 'p': if (query) { fputs(query, stdout); fputc('\n', stdout); } break; case 'q': /* \q is quit */ status = CMD_TERMINATE; break; case 'r': /* reset(clear) the buffer */ query[0] = '\0'; if (!pset->quiet) printf("buffer reset(cleared)\n"); break; case 's': /* \s is save history to a file */ if (!optarg) optarg = "/dev/tty"; #ifdef HAVE_HISTORY if (write_history(optarg) != 0) fprintf(stderr, "cannot write history to %s\n", optarg); #endif break; case 'm': /* monitor like type-setting */ if (toggle(pset, &pset->opt.standard, "standard SQL separaters and padding")) { pset->opt.html3 = pset->opt.expanded = 0; pset->opt.align = pset->opt.header = 1; if (pset->opt.fieldSep) free(pset->opt.fieldSep); pset->opt.fieldSep = strdup("|"); if (!pset->quiet) printf("field separator changed to '%s'\n", pset->opt.fieldSep); } else { if (pset->opt.fieldSep) free(pset->opt.fieldSep); pset->opt.fieldSep = strdup(DEFAULT_FIELD_SEP); if (!pset->quiet) printf("field separator changed to '%s'\n", pset->opt.fieldSep); } break; case 'z': /* list table rights (grant/revoke) */ rightsList(pset); break; case 't': /* toggle headers */ toggle(pset, &pset->opt.header, "output headings and row count"); break; case 'T': /* define html
option */ if (pset->opt.tableOpt) free(pset->opt.tableOpt); if (!optarg) pset->opt.tableOpt = NULL; else if (!(pset->opt.tableOpt = strdup(optarg))) { perror("malloc"); exit(CMD_TERMINATE); } break; case 'x': toggle(pset, &pset->opt.expanded, "expanded table representation"); break; case '!': do_shell(optarg); break; default: case '?': /* \? is help */ slashUsage(pset); break; } free(cmd); return status; } /* HandleSlashCmds() */ /* MainLoop() * Main processing loop for reading lines of input * and sending them to the backend. * * This loop is re-entrant. May be called by \i command * which reads input from a file. * db_ptr must be initialized and set. */ static int MainLoop(PsqlSettings *pset, FILE *source) { char *line; /* line of input */ char *xcomment; /* start of extended comment */ int len; /* length of the line */ char query[MAX_QUERY_BUFFER]; /* multi-line query * storage */ int successResult = 1; int slashCmdStatus = CMD_SEND; /* * slashCmdStatus can be: CMD_UNKNOWN - send currently constructed * query to backend (i.e. we got a \g) CMD_SEND - send * currently constructed query to backend (i.e. we got a \g) * CMD_SKIP_LINE - skip processing of this line, continue building * up query CMD_TERMINATE - terminate processing of this query * entirely CMD_NEWEDIT - new query supplied by edit */ bool querySent = false; bool interactive; READ_ROUTINE GetNextLine; bool eof = 0; /* We've reached the end of our command input. */ bool success; bool in_quote; bool was_bslash; /* backslash */ int paren_level; char *query_start; interactive = ((source == stdin) && !pset->notty); if (interactive) { if (pset->prompt) free(pset->prompt); pset->prompt = malloc(strlen(PQdb(pset->db)) + strlen(PROMPT) + 1); if (pset->quiet) pset->prompt[0] = '\0'; else sprintf(pset->prompt, "%s%s", PQdb(pset->db), PROMPT); if (pset->useReadline) { #ifdef HAVE_HISTORY using_history(); #endif GetNextLine = gets_readline; } else GetNextLine = gets_noreadline; } else GetNextLine = gets_fromFile; query[0] = '\0'; xcomment = NULL; in_quote = false; paren_level = 0; slashCmdStatus = CMD_UNKNOWN; /* set default */ /* main loop to get queries and execute them */ while (!eof) { /* * just returned from editing the line? then just copy to the * input buffer */ if (slashCmdStatus == CMD_NEWEDIT) { paren_level = 0; line = strdup(query); query[0] = '\0'; /* * otherwise, get another line and set interactive prompt if * necessary */ } else { if (interactive && !pset->quiet) { if (in_quote) pset->prompt[strlen(pset->prompt) - 3] = PROMPT_QUOTE; else if (xcomment != NULL) pset->prompt[strlen(pset->prompt) - 3] = PROMPT_COMMENT; else if (query[0] != '\0' && !querySent) pset->prompt[strlen(pset->prompt) - 3] = PROMPT_CONTINUE; else pset->prompt[strlen(pset->prompt) - 3] = PROMPT_READY; } line = GetNextLine(pset->prompt, source); #ifdef HAVE_HISTORY if (interactive && pset->useReadline && line != NULL) add_history(line); /* save non-empty lines in history */ #endif } /* * query - pointer to current command query_start - placeholder * for next command */ /* not currently inside an extended comment? */ if (xcomment == NULL) { query_start = line; /* otherwise, continue the extended comment... */ } else { query_start = line; xcomment = line; } if (line == NULL) { /* No more input. Time to quit */ if (!pset->quiet) printf("EOF\n");/* Goes on prompt line */ eof = true; } else { /* remove whitespaces on the right, incl. \n's */ line = rightTrim(line); /* echo back if input is from file */ if (!interactive && !pset->singleStep && !pset->quiet) fprintf(stderr, "%s\n", line); /* nothing on line after trimming? then ignore */ if (line[0] == '\0') { free(line); continue; } len = strlen(line); if (pset->singleLineMode) { SendQuery(&success, pset, line, false, false, 0); successResult &= success; querySent = true; } else { int i; was_bslash = false; for (i = 0; i < len; i++) { if (line[i] == '\\' && !in_quote) { char hold_char = line[i]; line[i] = '\0'; if (query_start[0] != '\0') { if (query[0] != '\0') { strcat(query, "\n"); strcat(query, query_start); } else { strcpy(query, query_start); } } line[i] = hold_char; query_start = line + i; break; /* handle command */ /* start an extended comment? */ } if (querySent && !isspace(line[i])) { query[0] = '\0'; querySent = false; } if (was_bslash) was_bslash = false; else if (i > 0 && line[i-1] == '\\') was_bslash = true; /* inside a quote? */ if (in_quote && (line[i] != '\'' || was_bslash)) { /* do nothing */; } else if (xcomment != NULL) /*inside an extended comment?*/ { if (line[i] == '*' && line[i + 1] == '/') { xcomment = NULL; i++; } } /* possible backslash command? */ else if (line[i] == '/' && line[i + 1] == '*') { xcomment = line + i; i++; } /* single-line comment? truncate line */ else if ((line[i] == '-' && line[i + 1] == '-') || (line[i] == '/' && line[i + 1] == '/')) { /* print comment at top of query */ if (pset->singleStep) fprintf(stdout, "%s\n", line + i); line[i] = '\0'; /* remove comment */ break; } else if (line[i] == '\'') { in_quote ^= 1; } /* semi-colon? then send query now */ else if (!paren_level && line[i] == ';') { char hold_char = line[i + 1]; line[i + 1] = '\0'; if (query_start[0] != '\0') { if (query[0] != '\0') { strcat(query, "\n"); strcat(query, query_start); } else strcpy(query, query_start); } SendQuery(&success, pset, query, false, false, 0); successResult &= success; line[i + 1] = hold_char; query_start = line + i + 1; querySent = true; } else if (line[i] == '(') { paren_level++; } else if (paren_level && line[i] == ')') { paren_level--; } } } /* nothing on line after trimming? then ignore */ if (line[0] == '\0') { free(line); continue; } slashCmdStatus = CMD_UNKNOWN; if (!in_quote && query_start[0] == '\\') { slashCmdStatus = HandleSlashCmds(pset, query_start, query); if (slashCmdStatus == CMD_SKIP_LINE) { if (query[0] == '\0') paren_level = 0; free(line); continue; } if (slashCmdStatus == CMD_TERMINATE) { free(line); break; } free(line); } else if (strlen(query) + strlen(query_start) > MAX_QUERY_BUFFER) { fprintf(stderr, "query buffer max length of %d exceeded\n", MAX_QUERY_BUFFER); fprintf(stderr, "query line ignored\n"); free(line); } else { if (query_start[0] != '\0') { querySent = false; if (query[0] != '\0') { strcat(query, "\n"); strcat(query, query_start); } else strcpy(query, query_start); } free(line); /* PURIFY */ } /* had a backslash-g? force the query to be sent */ if (slashCmdStatus == CMD_SEND) { #if FALSE if (!querySent) { SendQuery(&success, pset, query, false, false, 0); successResult &= success; } #else SendQuery(&success, pset, query, false, false, 0); successResult &= success; #endif querySent = true; } } } /* while */ return successResult; } /* MainLoop() */ int main(int argc, char **argv) { extern char *optarg; extern int optind; char *dbname = NULL; char *host = NULL; char *port = NULL; char *qfilename = NULL; char errbuf[ERROR_MSG_LENGTH]; PsqlSettings settings; char *singleQuery = NULL; bool listDatabases = 0; int successResult = 1; bool singleSlashCmd = 0; int c; MemSet(&settings, 0, sizeof settings); settings.opt.align = 1; settings.opt.header = 1; settings.queryFout = stdout; settings.opt.fieldSep = strdup(DEFAULT_FIELD_SEP); settings.opt.pager = 1; if (!isatty(0) || !isatty(1)) settings.quiet = settings.notty = 1; #ifdef HAVE_LIBREADLINE else settings.useReadline = 1; #endif #ifdef PSQL_ALWAYS_GET_PASSWORDS settings.getPassword = 1; #else settings.getPassword = 0; #endif while ((c = getopt(argc, argv, "Aa:c:d:ef:F:lh:Hnso:p:qStT:ux")) != EOF) { switch (c) { case 'A': settings.opt.align = 0; break; case 'a': fe_setauthsvc(optarg, errbuf); break; case 'c': singleQuery = strdup(optarg); if (singleQuery[0] == '\\') { singleSlashCmd = 1; } break; case 'd': dbname = optarg; break; case 'e': settings.echoQuery = 1; break; case 'f': qfilename = optarg; break; case 'F': settings.opt.fieldSep = strdup(optarg); break; case 'l': listDatabases = 1; break; case 'h': host = optarg; break; case 'H': settings.opt.html3 = 1; break; case 'n': settings.useReadline = 0; break; case 'o': setFout(&settings, optarg); break; case 'p': port = optarg; break; case 'q': settings.quiet = 1; break; case 's': settings.singleStep = 1; break; case 'S': settings.singleLineMode = 1; break; case 't': settings.opt.header = 0; break; case 'T': settings.opt.tableOpt = strdup(optarg); break; case 'u': settings.getPassword = 1; break; case 'x': settings.opt.expanded = 1; break; default: usage(argv[0]); break; } } /* if we still have an argument, use it as the database name */ if (argc - optind == 1) dbname = argv[optind]; if (listDatabases) dbname = "template1"; if (settings.getPassword) { char username[9]; char password[9]; char *connect_string; prompt_for_password(username, password); /* now use PQconnectdb so we can pass these options */ connect_string = make_connect_string(host, port, dbname, username, password); settings.db = PQconnectdb(connect_string); free(connect_string); } else { settings.db = PQsetdb(host, port, NULL, NULL, dbname); } dbname = PQdb(settings.db); if (PQstatus(settings.db) == CONNECTION_BAD) { fprintf(stderr, "Connection to database '%s' failed.\n", dbname); fprintf(stderr, "%s", PQerrorMessage(settings.db)); PQfinish(settings.db); exit(1); } if (listDatabases) { exit(listAllDbs(&settings)); } if (!settings.quiet && !singleQuery && !qfilename) { printf("Welcome to the POSTGRESQL interactive sql monitor:\n"); printf(" Please read the file COPYRIGHT for copyright terms " "of POSTGRESQL\n\n"); printf(" type \\? for help on slash commands\n"); printf(" type \\q to quit\n"); printf(" type \\g or terminate with semicolon to execute query\n"); printf(" You are currently connected to the database: %s\n\n", dbname); } if (qfilename || singleSlashCmd) { /* * read in a file full of queries instead of reading in queries * interactively */ char *line; if (singleSlashCmd) { /* Not really a query, but "Do what I mean, not what I say." */ line = singleQuery; } else { line = malloc(strlen(qfilename) + 5); sprintf(line, "\\i %s", qfilename); } HandleSlashCmds(&settings, line, ""); free(line); /* PURIFY */ } else { if (singleQuery) { bool success;/* The query succeeded at the backend */ SendQuery(&success, &settings, singleQuery, false, false, 0); successResult = success; } else successResult = MainLoop(&settings, stdin); } PQfinish(settings.db); free(settings.opt.fieldSep);/* PURIFY */ if (settings.prompt) free(settings.prompt); /* PURIFY */ return !successResult; } #define COPYBUFSIZ 8192 static void handleCopyOut(PGresult *res, bool quiet, FILE *copystream) { bool copydone; char copybuf[COPYBUFSIZ]; int ret; copydone = false; /* Can't be done; haven't started. */ while (!copydone) { ret = PQgetline(res->conn, copybuf, COPYBUFSIZ); if (copybuf[0] == '\\' && copybuf[1] == '.' && copybuf[2] == '\0') { copydone = true; /* don't print this... */ } else { fputs(copybuf, copystream); switch (ret) { case EOF: copydone = true; /* FALLTHROUGH */ case 0: fputc('\n', copystream); break; case 1: break; } } } fflush(copystream); PQendcopy(res->conn); } static void handleCopyIn(PGresult *res, const bool mustprompt, FILE *copystream) { bool copydone = false; bool firstload; bool linedone; char copybuf[COPYBUFSIZ]; char *s; int buflen; int c; if (mustprompt) { fputs("Enter info followed by a newline\n", stdout); fputs("End with a backslash and a " "period on a line by itself.\n", stdout); } while (!copydone) { /* for each input line ... */ if (mustprompt) { fputs(">> ", stdout); fflush(stdout); } firstload = true; linedone = false; while (!linedone) { /* for each buffer ... */ s = copybuf; buflen = COPYBUFSIZ; for (; buflen > 1 && !(linedone = (c = getc(copystream)) == '\n' || c == EOF); --buflen) { *s++ = c; } if (c == EOF) { PQputline(res->conn, "\\."); copydone = true; break; } *s = '\0'; PQputline(res->conn, copybuf); if (firstload) { if (!strcmp(copybuf, "\\.")) { copydone = true; } firstload = false; } } PQputline(res->conn, "\n"); } PQendcopy(res->conn); } /* * try to open fname and return a FILE *, if it fails, use stdout, instead */ static FILE * setFout(PsqlSettings *pset, char *fname) { if (pset->queryFout && pset->queryFout != stdout) { if (pset->pipe) pclose(pset->queryFout); else fclose(pset->queryFout); } if (!fname) { pset->queryFout = stdout; pqsignal(SIGPIPE, SIG_DFL); } else { if (*fname == '|') { pqsignal(SIGPIPE, SIG_IGN); pset->queryFout = popen(fname + 1, "w"); pset->pipe = 1; } else { pset->queryFout = fopen(fname, "w"); pqsignal(SIGPIPE, SIG_DFL); pset->pipe = 0; } if (!pset->queryFout) { perror(fname); pset->queryFout = stdout; } } return pset->queryFout; } static void prompt_for_password(char *username, char *password) { int length; #ifdef HAVE_TERMIOS_H struct termios t_orig, t; #endif printf("Username: "); fgets(username, 9, stdin); length = strlen(username); /* skip rest of the line */ if (length > 0 && username[length - 1] != '\n') { static char buf[512]; do { fgets(buf, 512, stdin); } while (buf[strlen(buf) - 1] != '\n'); } if (length > 0 && username[length - 1] == '\n') username[length - 1] = '\0'; printf("Password: "); #ifdef HAVE_TERMIOS_H tcgetattr(0, &t); t_orig = t; t.c_lflag &= ~ECHO; tcsetattr(0, TCSADRAIN, &t); #endif fgets(password, 9, stdin); #ifdef HAVE_TERMIOS_H tcsetattr(0, TCSADRAIN, &t_orig); #endif length = strlen(password); /* skip rest of the line */ if (length > 0 && password[length - 1] != '\n') { static char buf[512]; do { fgets(buf, 512, stdin); } while (buf[strlen(buf) - 1] != '\n'); } if (length > 0 && password[length - 1] == '\n') password[length - 1] = '\0'; printf("\n\n"); } static char * make_connect_string(char *host, char *port, char *dbname, char *username, char *password) { int connect_string_len = 0; char *connect_string; if (host) connect_string_len += 6 + strlen(host); /* 6 == "host=" + " " */ if (username) connect_string_len += 6 + strlen(username); /* 6 == "user=" + " " */ if (password) connect_string_len += 10 + strlen(password); /* 10 == "password=" + " * " */ if (port) connect_string_len += 6 + strlen(port); /* 6 == "port=" + " " */ if (dbname) connect_string_len += 8 + strlen(dbname); /* 8 == "dbname=" + " " */ connect_string_len += 18; /* "authtype=password" + null */ connect_string = (char *) malloc(connect_string_len); if (!connect_string) { return 0; } connect_string[0] = '\0'; if (host) { strcat(connect_string, "host="); strcat(connect_string, host); strcat(connect_string, " "); } if (username) { strcat(connect_string, "user="); strcat(connect_string, username); strcat(connect_string, " "); } if (password) { strcat(connect_string, "password="); strcat(connect_string, password); strcat(connect_string, " "); } if (port) { strcat(connect_string, "port="); strcat(connect_string, port); strcat(connect_string, " "); } if (dbname) { strcat(connect_string, "dbname="); strcat(connect_string, dbname); strcat(connect_string, " "); } strcat(connect_string, "authtype=password"); return connect_string; }