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0034 #include <string.h>
0035 #include <stdio.h>
0036 #include <stdlib.h>
0037 #include <memory.h>
0038 #include <errno.h>
0039 #include <utlist.h>
0040
0041 #include <tperror.h>
0042 #include <ubf.h>
0043 #include <atmi.h>
0044 #include <typed_buf.h>
0045 #include <ndebug.h>
0046 #include <fdatatype.h>
0047 #include <userlog.h>
0048
0049
0050 #define STRING_DEFAULT_SIZE 512
0051
0052
0053
0054
0055
0056
0057
0058
0059
0060
0061
0062
0063
0064 expublic int STRING_prepare_outgoing (typed_buffer_descr_t *descr, char *idata, long ilen,
0065 char *obuf, long *olen, long flags)
0066 {
0067 int ret=EXSUCCEED;
0068 int str_used;
0069 char fn[]="STRING_prepare_outgoing";
0070
0071 str_used = strlen(idata)+1;
0072
0073
0074 if (NULL!=olen && *olen < str_used)
0075 {
0076 ndrx_TPset_error_fmt(TPEINVAL, "%s: Internal buffer space: %d, "
0077 "but requested: %d", fn, *olen, str_used);
0078 ret=EXFAIL;
0079 goto out;
0080 }
0081
0082 memcpy(obuf, idata, str_used);
0083
0084
0085 if (NULL!=olen)
0086 *olen = str_used;
0087
0088 out:
0089 return ret;
0090 }
0091
0092
0093
0094
0095
0096
0097
0098
0099 expublic int STRING_prepare_incoming (typed_buffer_descr_t *descr, char *rcv_data,
0100 long rcv_len, char **odata, long *olen, long flags)
0101 {
0102 int ret=EXSUCCEED;
0103 int rcv_buf_size;
0104 int existing_size;
0105
0106 char fn[]="STRING_prepare_incoming";
0107 buffer_obj_t *outbufobj=NULL;
0108
0109 NDRX_LOG(log_debug, "Entering %s", fn);
0110
0111 rcv_buf_size = strlen (rcv_data) + 1;
0112
0113
0114
0115 if (NULL==(outbufobj=ndrx_find_buffer(*odata)))
0116 {
0117 ndrx_TPset_error_fmt(TPEINVAL, "Output buffer %p is not allocated "
0118 "with tpalloc()!", *odata);
0119 ret=EXFAIL;
0120 goto out;
0121 }
0122
0123
0124 if (NULL!=outbufobj)
0125 {
0126
0127 if (flags & TPNOCHANGE && outbufobj->type_id!=BUF_TYPE_STRING)
0128 {
0129
0130 ndrx_TPset_error_fmt(TPEOTYPE, "Receiver expects %s but got %s buffer",
0131 G_buf_descr[BUF_TYPE_NULL].type,
0132 G_buf_descr[outbufobj->type_id].type
0133 );
0134 ret=EXFAIL;
0135 goto out;
0136 }
0137
0138
0139
0140
0141 if (outbufobj->type_id!=BUF_TYPE_STRING)
0142 {
0143 NDRX_LOG(log_info, "User buffer %s is different, "
0144 "free it up and re-allocate as STRING", G_buf_descr[outbufobj->type_id].type);
0145 ndrx_tpfree(*odata, outbufobj);
0146 *odata=NULL;
0147 }
0148 }
0149
0150
0151 if (NULL!=*odata)
0152 {
0153 NDRX_LOG(log_debug, "%s: Output buffer exists", fn);
0154
0155 existing_size = outbufobj->size;
0156
0157
0158 NDRX_LOG(log_debug, "%s: Output buffer size: %d, received %d", fn,
0159 existing_size, rcv_buf_size);
0160
0161 if (existing_size>=rcv_buf_size)
0162 {
0163
0164 NDRX_LOG(log_debug, "%s: Using existing buffer", fn);
0165 }
0166 else
0167 {
0168
0169 char *new_addr;
0170 NDRX_LOG(log_debug, "%s: Reallocating", fn);
0171
0172 if (NULL==(new_addr=ndrx_tprealloc(*odata, rcv_buf_size)))
0173 {
0174 NDRX_LOG(log_error, "%s: _tprealloc failed!", fn);
0175 ret=EXFAIL;
0176 goto out;
0177 }
0178
0179
0180 *odata = new_addr;
0181 }
0182 }
0183 else
0184 {
0185
0186 NDRX_LOG(log_debug, "%s: Incoming buffer where missing - "
0187 "allocating new!", fn);
0188
0189 *odata = ndrx_tpalloc(&G_buf_descr[BUF_TYPE_STRING], NULL, NULL, rcv_len);
0190
0191 if (NULL==*odata)
0192 {
0193
0194 NDRX_LOG(log_error, "Failed to allocat new buffer!");
0195 goto out;
0196 }
0197 }
0198
0199
0200 strcpy(*odata, rcv_data);
0201 if (NULL!=olen)
0202 {
0203 *olen = rcv_len;
0204 }
0205
0206 out:
0207 return ret;
0208 }
0209
0210
0211
0212
0213
0214
0215
0216
0217 expublic char * STRING_tpalloc (typed_buffer_descr_t *descr, char *subtype, long *len)
0218 {
0219 char *ret;
0220
0221 if (STRING_DEFAULT_SIZE > *len)
0222 {
0223 *len = STRING_DEFAULT_SIZE;
0224 }
0225
0226
0227 ret=(char *)NDRX_MALLOC(*len);
0228 if (NULL!=ret)
0229 {
0230 ret[0] = EXEOS;
0231 }
0232 else
0233 {
0234 ndrx_TPset_error_fmt(TPEOS, "%s: Failed to allocate STRING buffer (len=%ld): %s",
0235 __func__, len, strerror(errno));
0236 }
0237
0238 out:
0239 return ret;
0240 }
0241
0242
0243
0244
0245
0246
0247
0248 expublic char * STRING_tprealloc(typed_buffer_descr_t *descr, char *cur_ptr, long len)
0249 {
0250 char *ret=NULL;
0251
0252 if (0==len)
0253 {
0254 len = STRING_DEFAULT_SIZE;
0255 }
0256
0257
0258 ret=(char *)NDRX_REALLOC(cur_ptr, len);
0259
0260 if (NULL==ret)
0261 {
0262 ndrx_TPset_error_fmt(TPEOS, "%s: Failed to reallocate STRING buffer (len=%ld): %s",
0263 __func__, len, strerror(errno));
0264 }
0265
0266 return ret;
0267 }
0268
0269
0270
0271
0272
0273
0274 expublic void STRING_tpfree(typed_buffer_descr_t *descr, char *buf)
0275 {
0276 NDRX_FREE(buf);
0277 }
0278
0279
0280
0281
0282
0283
0284
0285
0286
0287 expublic int STRING_test(typed_buffer_descr_t *descr, char *buf, BFLDLEN len, char *expr)
0288 {
0289 int ret=EXFALSE;
0290 regex_t re;
0291
0292 if (EXSUCCEED==(ret=regcomp(&re, expr, REG_EXTENDED | REG_NOSUB)))
0293 {
0294 if (EXSUCCEED==regexec(&re, buf, (size_t) 0, NULL, 0))
0295 {
0296 ret = EXTRUE;
0297 }
0298 regfree(&re);
0299 }
0300 else
0301 {
0302 NDRX_LOG(log_error, "Failed to compile regex event filter: [%s]", expr);
0303 userlog("Failed to compile regex event filter: [%s]", expr);
0304 }
0305
0306 return ret;
0307 }
0308
0309
0310