diff options
Diffstat (limited to 'crypto/heimdal/appl/popper/pop_dropinfo.c')
| -rw-r--r-- | crypto/heimdal/appl/popper/pop_dropinfo.c | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/crypto/heimdal/appl/popper/pop_dropinfo.c b/crypto/heimdal/appl/popper/pop_dropinfo.c new file mode 100644 index 0000000..71922d2 --- /dev/null +++ b/crypto/heimdal/appl/popper/pop_dropinfo.c @@ -0,0 +1,232 @@ +/* + * Copyright (c) 1989 Regents of the University of California. + * All rights reserved. The Berkeley software License Agreement + * specifies the terms and conditions for redistribution. + */ + +#include <popper.h> +RCSID("$Id: pop_dropinfo.c,v 1.24 1999/09/16 20:38:49 assar Exp $"); + +#if defined(UIDL) || defined(XOVER) + +/* + * Copy the string found after after : into a malloced buffer. Stop + * copying at end of string or end of line. End of line delimiter is + * not part of the resulting copy. + */ +static +char * +find_value_after_colon(char *p) +{ + char *t, *tmp; + + for (; *p != 0 && *p != ':'; p++) /* Find : */ + ; + + if (*p == 0) + goto error; + + p++; /* Skip over : */ + + for(; *p == ' ' || *p == '\t'; p++) /* Remove white space */ + ; + + for (t = p; *t != 0 && *t != '\n' && *t != '\r'; t++) /* Find end of str */ + ; + + tmp = t = malloc(t - p + 1); + if (tmp == 0) + goto error; + + for (; *p != 0 && *p != '\n' && *p != '\r'; p++, t++) /* Copy characters */ + *t = *p; + *t = 0; /* Terminate string */ + return tmp; + +error: + return "ErrorUIDL"; +} +#endif + +void +parse_header(MsgInfoList *mp, char *buffer) +{ +#if defined(UIDL) || defined(XOVER) + if (strncasecmp("Message-Id:",buffer, 11) == 0) { + if (mp->msg_id == NULL) + mp->msg_id = find_value_after_colon(buffer); + } +#ifdef UIDL + else if (strncasecmp(buffer, "X-UIDL:", 7) == 0) { + /* Courtesy to Qualcomm, there really is no such + thing as X-UIDL */ + mp->msg_id = find_value_after_colon(buffer); + } +#endif +#endif +#ifdef XOVER + else if (strncasecmp("Subject:", buffer, 8) == 0) { + if(mp->subject == NULL){ + char *p; + mp->subject = find_value_after_colon(buffer); + for(p = mp->subject; *p; p++) + if(*p == '\t') *p = ' '; + } + } + else if (strncasecmp("From:", buffer, 5) == 0) { + if(mp->from == NULL){ + char *p; + mp->from = find_value_after_colon(buffer); + for(p = mp->from; *p; p++) + if(*p == '\t') *p = ' '; + } + } + else if (strncasecmp("Date:", buffer, 5) == 0) { + if(mp->date == NULL){ + char *p; + mp->date = find_value_after_colon(buffer); + for(p = mp->date; *p; p++) + if(*p == '\t') *p = ' '; + } + } +#endif +} + +int +add_missing_headers(POP *p, MsgInfoList *mp) +{ +#if defined(UIDL) || defined(XOVER) + if (mp->msg_id == NULL) { + asprintf(&mp->msg_id, "no-message-id-%d", mp->number); + if(mp->msg_id == NULL) { + fclose (p->drop); + p->msg_count = 0; + return pop_msg (p,POP_FAILURE, + "Can't build message list for '%s': Out of memory", + p->user); + } + } +#endif +#ifdef XOVER + if (mp->subject == NULL) + mp->subject = "<none>"; + if (mp->from == NULL) + mp->from = "<unknown>"; + if (mp->date == NULL) + mp->date = "<unknown>"; +#endif + return POP_SUCCESS; +} + +/* + * dropinfo: Extract information about the POP maildrop and store + * it for use by the other POP routines. + */ + +int +pop_dropinfo(POP *p) +{ + char buffer[BUFSIZ]; /* Read buffer */ + MsgInfoList * mp; /* Pointer to message + info list */ + int msg_num; /* Current message + counter */ + int nchar; /* Bytes written/read */ + int blank_line = 1; /* previous line was blank */ + int in_header = 0; /* if we are in a header block */ + + /* Initialize maildrop status variables in the POP parameter block */ + p->msg_count = 0; + p->msgs_deleted = 0; + p->last_msg = 0; + p->bytes_deleted = 0; + p->drop_size = 0; + + /* Allocate memory for message information structures */ + p->msg_count = ALLOC_MSGS; + p->mlp = (MsgInfoList *)calloc((unsigned)p->msg_count,sizeof(MsgInfoList)); + if (p->mlp == NULL){ + fclose (p->drop); + p->msg_count = 0; + return pop_msg (p,POP_FAILURE, + "Can't build message list for '%s': Out of memory", p->user); + } + + rewind (p->drop); + + /* Scan the file, loading the message information list with + information about each message */ + + for (msg_num = p->drop_size = 0, mp = p->mlp - 1; + fgets(buffer,MAXMSGLINELEN,p->drop);) { + + nchar = strlen(buffer); + + if (blank_line && strncmp(buffer,"From ",5) == 0) { + in_header = 1; + if (++msg_num > p->msg_count) { + p->mlp=(MsgInfoList *) realloc(p->mlp, + (p->msg_count+=ALLOC_MSGS)*sizeof(MsgInfoList)); + if (p->mlp == NULL){ + fclose (p->drop); + p->msg_count = 0; + return pop_msg (p,POP_FAILURE, + "Can't build message list for '%s': Out of memory", + p->user); + } + mp = p->mlp + msg_num - 2; + } + ++mp; + mp->number = msg_num; + mp->length = 0; + mp->lines = 0; + mp->offset = ftell(p->drop) - nchar; + mp->flags = 0; +#if defined(UIDL) || defined(XOVER) + mp->msg_id = 0; +#endif +#ifdef XOVER + mp->subject = 0; + mp->from = 0; + mp->date = 0; +#endif +#ifdef DEBUG + if(p->debug) + pop_log(p, POP_DEBUG, + "Msg %d at offset %ld being added to list", + mp->number, mp->offset); +#endif /* DEBUG */ + } else if(in_header) + parse_header(mp, buffer); + blank_line = (strncmp(buffer, "\n", nchar) == 0); + if(blank_line) { + int e; + in_header = 0; + e = add_missing_headers(p, mp); + if(e != POP_SUCCESS) + return e; + } + mp->length += nchar; + p->drop_size += nchar; + mp->lines++; + } + p->msg_count = msg_num; + +#ifdef DEBUG + if(p->debug && msg_num > 0) { + int i; + for (i = 0, mp = p->mlp; i < p->msg_count; i++, mp++) +#ifdef UIDL + pop_log(p,POP_DEBUG, + "Msg %d at offset %ld is %ld octets long and has %u lines and id %s.", + mp->number,mp->offset,mp->length,mp->lines, mp->msg_id); +#else + pop_log(p,POP_DEBUG, + "Msg %d at offset %d is %d octets long and has %u lines.", + mp->number,mp->offset,mp->length,mp->lines); +#endif + } +#endif /* DEBUG */ + + return(POP_SUCCESS); +} |
