1 /* 2 * Copyright (c) 2001 Sendmail, Inc. and its suppliers. 3 * All rights reserved. 4 * 5 * By using this file, you agree to the terms and conditions set 6 * forth in the LICENSE file which can be found at the top level of 7 * the sendmail distribution. 8 * 9 */ 10 11 #include <sm/gen.h> 12 SM_RCSID("@(#)$Id: cf.c,v 1.7 2013/03/12 15:24:50 ca Exp $") 13 14 #include <ctype.h> 15 #include <errno.h> 16 17 #include <sm/cf.h> 18 #include <sm/io.h> 19 #include <sm/string.h> 20 #include <sm/heap.h> 21 22 /* 23 ** SM_CF_GETOPT -- look up option values in the sendmail.cf file 24 ** 25 ** Open the sendmail.cf file and parse all of the 'O' directives. 26 ** Each time one of the options named in the option vector optv 27 ** is found, store a malloced copy of the option value in optv. 28 ** 29 ** Parameters: 30 ** path -- pathname of sendmail.cf file 31 ** optc -- size of option vector 32 ** optv -- pointer to option vector 33 ** 34 ** Results: 35 ** 0 on success, or an errno value on failure. 36 ** An exception is raised on malloc failure. 37 */ 38 39 int 40 sm_cf_getopt(path, optc, optv) 41 char *path; 42 int optc; 43 SM_CF_OPT_T *optv; 44 { 45 SM_FILE_T *cfp; 46 char buf[2048]; 47 char *p; 48 char *id; 49 char *idend; 50 char *val; 51 int i; 52 53 cfp = sm_io_open(SmFtStdio, SM_TIME_DEFAULT, path, SM_IO_RDONLY, NULL); 54 if (cfp == NULL) 55 return errno; 56 57 while (sm_io_fgets(cfp, SM_TIME_DEFAULT, buf, sizeof(buf)) >= 0) 58 { 59 p = strchr(buf, '\n'); 60 if (p != NULL) 61 *p = '\0'; 62 63 if (buf[0] != 'O' || buf[1] != ' ') 64 continue; 65 66 id = &buf[2]; 67 val = strchr(id, '='); 68 if (val == NULL) 69 val = idend = id + strlen(id); 70 else 71 { 72 idend = val; 73 ++val; 74 while (*val == ' ') 75 ++val; 76 while (idend > id && idend[-1] == ' ') 77 --idend; 78 *idend = '\0'; 79 } 80 81 for (i = 0; i < optc; ++i) 82 { 83 if (sm_strcasecmp(optv[i].opt_name, id) == 0) 84 { 85 optv[i].opt_val = sm_strdup_x(val); 86 break; 87 } 88 } 89 } 90 if (sm_io_error(cfp)) 91 { 92 int save_errno = errno; 93 94 (void) sm_io_close(cfp, SM_TIME_DEFAULT); 95 errno = save_errno; 96 return errno; 97 } 98 (void) sm_io_close(cfp, SM_TIME_DEFAULT); 99 return 0; 100 } 101