/* * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved. * COPYING RESTRICTIONS APPLY, see COPYRIGHT file */ /* ldapmodify.c - generic program to modify or add entries using LDAP */ #include "portable.h" #include #include #include #include #include #include #include #ifdef HAVE_SYS_FILE_H #include #endif #ifdef HAVE_FCNTL_H #include #endif #include #include #include "ldif.h" #include "ldap_defaults.h" static char *prog; static char *binddn = NULL; static char *passwd = NULL; static char *ldaphost = NULL; static int ldapport = 0; static int new, replace, not, verbose, contoper, force, valsfromfiles; static LDAP *ld; #define LDAPMOD_MAXLINE 4096 /* strings found in replog/LDIF entries (mostly lifted from slurpd/slurp.h) */ #define T_VERSION_STR "version" #define T_REPLICA_STR "replica" #define T_DN_STR "dn" #define T_CHANGETYPESTR "changetype" #define T_ADDCTSTR "add" #define T_MODIFYCTSTR "modify" #define T_DELETECTSTR "delete" #define T_MODRDNCTSTR "modrdn" #define T_MODDNCTSTR "moddn" #define T_RENAMECTSTR "rename" #define T_MODOPADDSTR "add" #define T_MODOPREPLACESTR "replace" #define T_MODOPDELETESTR "delete" #define T_MODSEPSTR "-" #define T_NEWRDNSTR "newrdn" #define T_DELETEOLDRDNSTR "deleteoldrdn" #define T_NEWSUPSTR "newsuperior" static void usage LDAP_P(( const char *prog )); static int process_ldapmod_rec LDAP_P(( char *rbuf )); static int process_ldif_rec LDAP_P(( char *rbuf, int count )); static void addmodifyop LDAP_P(( LDAPMod ***pmodsp, int modop, char *attr, char *value, int vlen )); static int domodify LDAP_P(( char *dn, LDAPMod **pmods, int newentry )); static int dodelete LDAP_P(( char *dn )); static int domodrdn LDAP_P(( char *dn, char *newrdn, int deleteoldrdn )); static int fromfile LDAP_P(( char *path, struct berval *bv )); static char *read_one_record LDAP_P(( FILE *fp )); static void usage( const char *prog ) { fprintf( stderr, "Add or modify entries from an LDAP server\n\n" "usage: %s [-abcknrvF] [-M[M]] [-d debug-level] [-P version] [-h ldaphost]\n" " [-p ldapport] [-D binddn] [-w passwd] [ -f file | < entryfile ]\n" " a - add values (default%s)\n" " b - read values from files (for binary attributes)\n" " c - continuous operation\n" " D - bind DN\n" " M - enable Manage DSA IT control (-MM for critical)\n" " d - debug level\n" " f - read from file\n" " F - force all changes records to be used\n" " h - ldap host\n" " n - print adds, don't actually do them\n" " p - LDAP port\n" " r - replace values\n" " v - verbose mode\n" " w - password\n" , prog, (strcmp( prog, "ldapadd" ) ? " is to replace" : "") ); exit( EXIT_FAILURE ); } int main( int argc, char **argv ) { char *infile, *rbuf, *start, *p, *q; FILE *fp; int rc, i, use_ldif, authmethod, version, want_bindpw, debug, manageDSAit; int count; if (( prog = strrchr( argv[ 0 ], *LDAP_DIRSEP )) == NULL ) { prog = argv[ 0 ]; } else { ++prog; } /* Print usage when no parameters */ if( argc < 2 ) usage( prog ); new = ( strcmp( prog, "ldapadd" ) == 0 ); infile = NULL; not = verbose = valsfromfiles = want_bindpw = debug = manageDSAit = 0; authmethod = LDAP_AUTH_SIMPLE; version = -1; while (( i = getopt( argc, argv, "WFMabckKnrtvh:p:D:w:d:f:P:" )) != EOF ) { switch( i ) { case 'a': /* add */ new = 1; break; case 'b': /* read values from files (for binary attributes) */ valsfromfiles = 1; break; case 'c': /* continuous operation */ contoper = 1; break; case 'r': /* default is to replace rather than add values */ replace = 1; break; case 'k': /* kerberos bind */ #ifdef HAVE_KERBEROS authmethod = LDAP_AUTH_KRBV4; #else fprintf (stderr, "%s was not compiled with Kerberos support\n", argv[0]); usage( argv[0] ); return( EXIT_FAILURE ); #endif break; case 'K': /* kerberos bind, part 1 only */ #ifdef HAVE_KERBEROS authmethod = LDAP_AUTH_KRBV41; #else fprintf (stderr, "%s was not compiled with Kerberos support\n", argv[0]); usage( argv[0] ); return( EXIT_FAILURE ); #endif break; case 'F': /* force all changes records to be used */ force = 1; break; case 'h': /* ldap host */ ldaphost = strdup( optarg ); break; case 'D': /* bind DN */ binddn = strdup( optarg ); break; case 'w': /* password */ passwd = strdup( optarg ); { char* p; for( p = optarg; *p == '\0'; p++ ) { *p = '*'; } } break; case 'd': debug |= atoi( optarg ); break; case 'f': /* read from file */ infile = strdup( optarg ); break; case 'p': ldapport = atoi( optarg ); break; case 'n': /* print adds, don't actually do them */ ++not; break; case 'v': /* verbose mode */ verbose++; break; case 'M': /* enable Manage DSA IT */ manageDSAit++; break; case 'W': want_bindpw++; break; case 'P': switch( atoi(optarg) ) { case 2: version = LDAP_VERSION2; break; case 3: version = LDAP_VERSION3; break; default: fprintf( stderr, "protocol version should be 2 or 3\n" ); usage( argv[0] ); } break; default: usage( prog ); } } if ( argc != optind ) usage( prog ); if ( infile != NULL ) { if (( fp = fopen( infile, "r" )) == NULL ) { perror( infile ); return( EXIT_FAILURE ); } } else { fp = stdin; } if ( debug ) { if( ber_set_option( NULL, LBER_OPT_DEBUG_LEVEL, &debug ) != LBER_OPT_SUCCESS ) { fprintf( stderr, "Could not set LBER_OPT_DEBUG_LEVEL %d\n", debug ); } if( ldap_set_option( NULL, LDAP_OPT_DEBUG_LEVEL, &debug ) != LDAP_OPT_SUCCESS ) { fprintf( stderr, "Could not set LDAP_OPT_DEBUG_LEVEL %d\n", debug ); } ldif_debug = debug; } #ifdef SIGPIPE (void) SIGNAL( SIGPIPE, SIG_IGN ); #endif if ( !not ) { if (( ld = ldap_init( ldaphost, ldapport )) == NULL ) { perror( "ldap_init" ); return( EXIT_FAILURE ); } /* this seems prudent */ { int deref = LDAP_DEREF_NEVER; ldap_set_option( ld, LDAP_OPT_DEREF, &deref); } if (want_bindpw) passwd = getpass("Enter LDAP Password: "); if (version != -1 && ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, &version ) != LDAP_OPT_SUCCESS) { fprintf( stderr, "Could not set LDAP_OPT_PROTOCOL_VERSION to %d\n", version ); } if ( ldap_bind_s( ld, binddn, passwd, authmethod ) != LDAP_SUCCESS ) { ldap_perror( ld, "ldap_bind" ); return( EXIT_FAILURE ); } } rc = 0; if ( manageDSAit ) { int err; LDAPControl c; LDAPControl *ctrls[2]; ctrls[0] = &c; ctrls[1] = NULL; c.ldctl_oid = LDAP_CONTROL_MANAGEDSAIT; c.ldctl_value.bv_val = NULL; c.ldctl_value.bv_len = 0; c.ldctl_iscritical = manageDSAit > 1; err = ldap_set_option( ld, LDAP_OPT_SERVER_CONTROLS, &ctrls ); if( err != LDAP_OPT_SUCCESS ) { fprintf( stderr, "Could not set Manage DSA IT Control\n" ); if( c.ldctl_iscritical ) { exit( EXIT_FAILURE ); } } } count = 0; while (( rc == 0 || contoper ) && ( rbuf = read_one_record( fp )) != NULL ) { count++; /* * we assume record is ldif/slapd.replog if the first line * has a colon that appears to the left of any equal signs, OR * if the first line consists entirely of digits (an entry id) */ use_ldif = ( *rbuf == '#' ) || (( p = strchr( rbuf, ':' )) != NULL && ( q = strchr( rbuf, '\n' )) != NULL && p < q && (( q = strchr( rbuf, '=' )) == NULL || p < q )); start = rbuf; if ( !use_ldif && ( q = strchr( rbuf, '\n' )) != NULL ) { for ( p = rbuf; p < q; ++p ) { if ( !isdigit( (unsigned char) *p )) { break; } } if ( p >= q ) { use_ldif = 1; start = q + 1; } } if ( use_ldif ) { rc = process_ldif_rec( start, count ); } else { rc = process_ldapmod_rec( start ); } if( rc ) fprintf( stderr, "%s() = %d\n", use_ldif ? "ldif_rec" : "ldapmod_rec" , rc ); free( rbuf ); } if ( !not ) { ldap_unbind( ld ); } return( rc ); } static int process_ldif_rec( char *rbuf, int count ) { char *line, *dn, *type, *value, *newrdn, *newsup, *p; int rc, linenum, modop, replicaport; ber_len_t vlen; int expect_modop, expect_sep, expect_ct, expect_newrdn, expect_newsup; int expect_deleteoldrdn, deleteoldrdn; int saw_replica, use_record, new_entry, delete_entry, got_all; LDAPMod **pmods; int version; new_entry = new; rc = got_all = saw_replica = delete_entry = expect_modop = 0; expect_deleteoldrdn = expect_newrdn = expect_newsup = 0; expect_sep = expect_ct = 0; linenum = 0; version = 0; deleteoldrdn = 1; use_record = force; pmods = NULL; dn = newrdn = newsup = NULL; while ( rc == 0 && ( line = ldif_getline( &rbuf )) != NULL ) { ++linenum; if ( expect_sep && strcasecmp( line, T_MODSEPSTR ) == 0 ) { expect_sep = 0; expect_ct = 1; continue; } if ( ldif_parse_line( line, &type, &value, &vlen ) < 0 ) { fprintf( stderr, "%s: invalid format (line %d) entry: \"%s\"\n", prog, linenum, dn == NULL ? "" : dn ); rc = LDAP_PARAM_ERROR; break; } if ( dn == NULL ) { if ( !use_record && strcasecmp( type, T_REPLICA_STR ) == 0 ) { ++saw_replica; if (( p = strchr( value, ':' )) == NULL ) { replicaport = 0; } else { *p++ = '\0'; replicaport = atoi( p ); } if ( strcasecmp( value, ldaphost ) == 0 && replicaport == ldapport ) { use_record = 1; } } else if ( count == 1 && linenum == 1 && strcasecmp( type, T_VERSION_STR ) == 0 ) { if( vlen == 0 || atoi(value) != 1 ) { fprintf( stderr, "%s: invalid version %s, line %d (ignored)\n", prog, value == NULL ? "(null)" : value, linenum ); } version++; } else if ( strcasecmp( type, T_DN_STR ) == 0 ) { if (( dn = strdup( value ? value : "" )) == NULL ) { perror( "strdup" ); exit( EXIT_FAILURE ); } expect_ct = 1; } goto end_line; /* skip all lines until we see "dn:" */ } if ( expect_ct ) { expect_ct = 0; if ( !use_record && saw_replica ) { printf( "%s: skipping change record for entry: %s\n" "\t(LDAP host/port does not match replica: lines)\n", prog, dn ); free( dn ); ber_memfree( type ); ber_memfree( value ); return( 0 ); } if ( strcasecmp( type, T_CHANGETYPESTR ) == 0 ) { if ( strcasecmp( value, T_MODIFYCTSTR ) == 0 ) { new_entry = 0; expect_modop = 1; } else if ( strcasecmp( value, T_ADDCTSTR ) == 0 ) { new_entry = 1; } else if ( strcasecmp( value, T_MODRDNCTSTR ) == 0 || strcasecmp( value, T_MODDNCTSTR ) == 0 || strcasecmp( value, T_RENAMECTSTR ) == 0) { expect_newrdn = 1; } else if ( strcasecmp( value, T_DELETECTSTR ) == 0 ) { got_all = delete_entry = 1; } else { fprintf( stderr, "%s: unknown %s \"%s\" (line %d of entry \"%s\")\n", prog, T_CHANGETYPESTR, value, linenum, dn ); rc = LDAP_PARAM_ERROR; } goto end_line; } else if ( new ) { /* missing changetype => add */ new_entry = 1; modop = LDAP_MOD_ADD; } else { expect_modop = 1; /* missing changetype => modify */ } } if ( expect_modop ) { expect_modop = 0; expect_sep = 1; if ( strcasecmp( type, T_MODOPADDSTR ) == 0 ) { modop = LDAP_MOD_ADD; goto end_line; } else if ( strcasecmp( type, T_MODOPREPLACESTR ) == 0 ) { modop = LDAP_MOD_REPLACE; goto end_line; } else if ( strcasecmp( type, T_MODOPDELETESTR ) == 0 ) { modop = LDAP_MOD_DELETE; addmodifyop( &pmods, modop, value, NULL, 0 ); goto end_line; } else { /* no modify op: use default */ modop = replace ? LDAP_MOD_REPLACE : LDAP_MOD_ADD; } } if ( expect_newrdn ) { if ( strcasecmp( type, T_NEWRDNSTR ) == 0 ) { if (( newrdn = strdup( value )) == NULL ) { perror( "strdup" ); exit( EXIT_FAILURE ); } expect_deleteoldrdn = 1; expect_newrdn = 0; } else { fprintf( stderr, "%s: expecting \"%s:\" but saw \"%s:\" (line %d of entry \"%s\")\n", prog, T_NEWRDNSTR, type, linenum, dn ); rc = LDAP_PARAM_ERROR; } } else if ( expect_deleteoldrdn ) { if ( strcasecmp( type, T_DELETEOLDRDNSTR ) == 0 ) { deleteoldrdn = ( *value == '0' ) ? 0 : 1; expect_deleteoldrdn = 0; expect_newsup = 1; got_all = 1; } else { fprintf( stderr, "%s: expecting \"%s:\" but saw \"%s:\" (line %d of entry \"%s\")\n", prog, T_DELETEOLDRDNSTR, type, linenum, dn ); rc = LDAP_PARAM_ERROR; } } else if ( expect_newsup ) { if ( strcasecmp( type, T_NEWSUPSTR ) == 0 ) { if (( newsup = strdup( value )) == NULL ) { perror( "strdup" ); exit( EXIT_FAILURE ); } expect_newsup = 0; } else { fprintf( stderr, "%s: expecting \"%s:\" but saw \"%s:\" (line %d of entry \"%s\")\n", prog, T_NEWSUPSTR, type, linenum, dn ); rc = LDAP_PARAM_ERROR; } } else if ( got_all ) { fprintf( stderr, "%s: extra lines at end (line %d of entry \"%s\")\n", prog, linenum, dn ); rc = LDAP_PARAM_ERROR; } else { addmodifyop( &pmods, modop, type, value, vlen ); } end_line: ber_memfree( type ); ber_memfree( value ); } if( linenum == 0 ) { return 0; } if( version && linenum == 1 ) { return 0; } if ( rc == 0 ) { if ( delete_entry ) { rc = dodelete( dn ); } else if ( newrdn != NULL ) { rc = domodrdn( dn, newrdn, deleteoldrdn ); } else { rc = domodify( dn, pmods, new_entry ); } if ( rc == LDAP_SUCCESS ) { rc = 0; } } if ( dn != NULL ) { free( dn ); } if ( newrdn != NULL ) { free( newrdn ); } if ( pmods != NULL ) { ldap_mods_free( pmods, 1 ); } return( rc ); } static int process_ldapmod_rec( char *rbuf ) { char *line, *dn, *p, *q, *attr, *value; int rc, linenum, modop; LDAPMod **pmods; pmods = NULL; dn = NULL; linenum = 0; line = rbuf; rc = 0; while ( rc == 0 && rbuf != NULL && *rbuf != '\0' ) { ++linenum; if (( p = strchr( rbuf, '\n' )) == NULL ) { rbuf = NULL; } else { if ( *(p-1) == '\\' ) { /* lines ending in '\' are continued */ SAFEMEMCPY( p - 1, p, strlen( p ) + 1 ); rbuf = p; continue; } *p++ = '\0'; rbuf = p; } if ( dn == NULL ) { /* first line contains DN */ if (( dn = strdup( line )) == NULL ) { perror( "strdup" ); exit( EXIT_FAILURE ); } } else { if (( p = strchr( line, '=' )) == NULL ) { value = NULL; p = line + strlen( line ); } else { *p++ = '\0'; value = p; } for ( attr = line; *attr != '\0' && isspace( (unsigned char) *attr ); ++attr ) { ; /* skip attribute leading white space */ } for ( q = p - 1; q > attr && isspace( (unsigned char) *q ); --q ) { *q = '\0'; /* remove attribute trailing white space */ } if ( value != NULL ) { while ( isspace( (unsigned char) *value )) { ++value; /* skip value leading white space */ } for ( q = value + strlen( value ) - 1; q > value && isspace( (unsigned char) *q ); --q ) { *q = '\0'; /* remove value trailing white space */ } if ( *value == '\0' ) { value = NULL; } } if ( value == NULL && new ) { fprintf( stderr, "%s: missing value on line %d (attr=\"%s\")\n", prog, linenum, attr ); rc = LDAP_PARAM_ERROR; } else { switch ( *attr ) { case '-': modop = LDAP_MOD_DELETE; ++attr; break; case '+': modop = LDAP_MOD_ADD; ++attr; break; default: modop = replace ? LDAP_MOD_REPLACE : LDAP_MOD_ADD; } addmodifyop( &pmods, modop, attr, value, ( value == NULL ) ? 0 : strlen( value )); } } line = rbuf; } if ( rc == 0 ) { if ( dn == NULL ) { rc = LDAP_PARAM_ERROR; } else if (( rc = domodify( dn, pmods, new )) == LDAP_SUCCESS ) { rc = 0; } } if ( pmods != NULL ) { ldap_mods_free( pmods, 1 ); } if ( dn != NULL ) { free( dn ); } return( rc ); } static void addmodifyop( LDAPMod ***pmodsp, int modop, char *attr, char *value, int vlen ) { LDAPMod **pmods; int i, j; struct berval *bvp; pmods = *pmodsp; modop |= LDAP_MOD_BVALUES; i = 0; if ( pmods != NULL ) { for ( ; pmods[ i ] != NULL; ++i ) { if ( strcasecmp( pmods[ i ]->mod_type, attr ) == 0 && pmods[ i ]->mod_op == modop ) { break; } } } if ( pmods == NULL || pmods[ i ] == NULL ) { if (( pmods = (LDAPMod **)ber_memrealloc( pmods, (i + 2) * sizeof( LDAPMod * ))) == NULL ) { perror( "realloc" ); exit( EXIT_FAILURE ); } *pmodsp = pmods; pmods[ i + 1 ] = NULL; if (( pmods[ i ] = (LDAPMod *)ber_memcalloc( 1, sizeof( LDAPMod ))) == NULL ) { perror( "calloc" ); exit( EXIT_FAILURE ); } pmods[ i ]->mod_op = modop; if (( pmods[ i ]->mod_type = ber_strdup( attr )) == NULL ) { perror( "strdup" ); exit( EXIT_FAILURE ); } } if ( value != NULL ) { j = 0; if ( pmods[ i ]->mod_bvalues != NULL ) { for ( ; pmods[ i ]->mod_bvalues[ j ] != NULL; ++j ) { ; } } if (( pmods[ i ]->mod_bvalues = (struct berval **)ber_memrealloc( pmods[ i ]->mod_bvalues, (j + 2) * sizeof( struct berval * ))) == NULL ) { perror( "ber_realloc" ); exit( EXIT_FAILURE ); } pmods[ i ]->mod_bvalues[ j + 1 ] = NULL; if (( bvp = (struct berval *)ber_memalloc( sizeof( struct berval ))) == NULL ) { perror( "ber_memalloc" ); exit( EXIT_FAILURE ); } pmods[ i ]->mod_bvalues[ j ] = bvp; if ( valsfromfiles && *value == '/' ) { /* get value from file */ if ( fromfile( value, bvp ) < 0 ) { exit( EXIT_FAILURE ); } } else { bvp->bv_len = vlen; if (( bvp->bv_val = (char *)ber_memalloc( vlen + 1 )) == NULL ) { perror( "malloc" ); exit( EXIT_FAILURE ); } SAFEMEMCPY( bvp->bv_val, value, vlen ); bvp->bv_val[ vlen ] = '\0'; } } } static int domodify( char *dn, LDAPMod **pmods, int newentry ) { int i, j, k, notascii, op; struct berval *bvp; if ( pmods == NULL ) { fprintf( stderr, "%s: no attributes to change or add (entry=\"%s\")\n", prog, dn ); return( LDAP_PARAM_ERROR ); } if ( verbose ) { for ( i = 0; pmods[ i ] != NULL; ++i ) { op = pmods[ i ]->mod_op & ~LDAP_MOD_BVALUES; printf( "%s %s:\n", op == LDAP_MOD_REPLACE ? "replace" : op == LDAP_MOD_ADD ? "add" : "delete", pmods[ i ]->mod_type ); if ( pmods[ i ]->mod_bvalues != NULL ) { for ( j = 0; pmods[ i ]->mod_bvalues[ j ] != NULL; ++j ) { bvp = pmods[ i ]->mod_bvalues[ j ]; notascii = 0; for ( k = 0; (unsigned long) k < bvp->bv_len; ++k ) { if ( !isascii( bvp->bv_val[ k ] )) { notascii = 1; break; } } if ( notascii ) { printf( "\tNOT ASCII (%ld bytes)\n", bvp->bv_len ); } else { printf( "\t%s\n", bvp->bv_val ); } } } } } if ( newentry ) { printf( "%sadding new entry \"%s\"\n", not ? "!" : "", dn ); } else { printf( "%smodifying entry \"%s\"\n", not ? "!" : "", dn ); } if ( !not ) { if ( newentry ) { i = ldap_add_s( ld, dn, pmods ); } else { i = ldap_modify_s( ld, dn, pmods ); } if ( i != LDAP_SUCCESS ) { ldap_perror( ld, newentry ? "ldap_add" : "ldap_modify" ); } else if ( verbose ) { printf( "modify complete\n" ); } } else { i = LDAP_SUCCESS; } putchar( '\n' ); return( i ); } static int dodelete( char *dn ) { int rc; printf( "%sdeleting entry \"%s\"\n", not ? "!" : "", dn ); if ( !not ) { if (( rc = ldap_delete_s( ld, dn )) != LDAP_SUCCESS ) { ldap_perror( ld, "ldap_delete" ); } else if ( verbose ) { printf( "delete complete" ); } } else { rc = LDAP_SUCCESS; } putchar( '\n' ); return( rc ); } static int domodrdn( char *dn, char *newrdn, int deleteoldrdn ) { int rc; printf( "%smodifying rdn of entry \"%s\"\n", not ? "!" : "", dn ); if ( verbose ) { printf( "\tnew RDN: \"%s\" (%skeep existing values)\n", newrdn, deleteoldrdn ? "do not " : "" ); } if ( !not ) { if (( rc = ldap_modrdn2_s( ld, dn, newrdn, deleteoldrdn )) != LDAP_SUCCESS ) { ldap_perror( ld, "ldap_modrdn" ); } else { printf( "modrdn completed\n" ); } } else { rc = LDAP_SUCCESS; } putchar( '\n' ); return( rc ); } static int fromfile( char *path, struct berval *bv ) { FILE *fp; long rlen; int eof; if (( fp = fopen( path, "r" )) == NULL ) { perror( path ); return( -1 ); } if ( fseek( fp, 0L, SEEK_END ) != 0 ) { perror( path ); fclose( fp ); return( -1 ); } bv->bv_len = ftell( fp ); if (( bv->bv_val = (char *)ber_memalloc( bv->bv_len )) == NULL ) { perror( "malloc" ); fclose( fp ); return( -1 ); } if ( fseek( fp, 0L, SEEK_SET ) != 0 ) { perror( path ); fclose( fp ); ber_memfree( bv->bv_val ); bv->bv_val = NULL; return( -1 ); } rlen = fread( bv->bv_val, 1, bv->bv_len, fp ); eof = feof( fp ); fclose( fp ); if ( (unsigned long) rlen != bv->bv_len ) { perror( path ); ber_memfree( bv->bv_val ); bv->bv_val = NULL; return( -1 ); } return( bv->bv_len ); } static char * read_one_record( FILE *fp ) { char *buf, line[ LDAPMOD_MAXLINE ]; int lcur, lmax; lcur = lmax = 0; buf = NULL; while ( fgets( line, sizeof(line), fp ) != NULL ) { int len = strlen( line ); if( len < 2 ) { if( buf == NULL ) { continue; } else { break; } } if ( lcur + len + 1 > lmax ) { lmax = LDAPMOD_MAXLINE * (( lcur + len + 1 ) / LDAPMOD_MAXLINE + 1 ); if (( buf = (char *)realloc( buf, lmax )) == NULL ) { perror( "realloc" ); exit( EXIT_FAILURE ); } } strcpy( buf + lcur, line ); lcur += len; } return( buf ); }