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-rw-r--r--src/tool_paramhlp.c387
1 files changed, 387 insertions, 0 deletions
diff --git a/src/tool_paramhlp.c b/src/tool_paramhlp.c
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+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#include "setup.h"
+
+#include <curl/curl.h>
+
+#include "rawstr.h"
+
+#define ENABLE_CURLX_PRINTF
+/* use our own printf() functions */
+#include "curlx.h"
+
+#include "tool_cfgable.h"
+#include "tool_getparam.h"
+#include "tool_getpass.h"
+#include "tool_homedir.h"
+#include "tool_msgs.h"
+#include "tool_paramhlp.h"
+
+#include "memdebug.h" /* keep this as LAST include */
+
+struct getout *new_getout(struct Configurable *config)
+{
+ struct getout *node = calloc(1, sizeof(struct getout));
+ struct getout *last = config->url_last;
+ if(node) {
+ /* append this new node last in the list */
+ if(last)
+ last->next = node;
+ else
+ config->url_list = node; /* first node */
+
+ /* move the last pointer */
+ config->url_last = node;
+
+ node->flags = config->default_node_flags;
+ }
+ return node;
+}
+
+ParameterError file2string(char **bufp, FILE *file)
+{
+ char buffer[256];
+ char *ptr;
+ char *string = NULL;
+ size_t stringlen = 0;
+ size_t buflen;
+
+ if(file) {
+ while(fgets(buffer, sizeof(buffer), file)) {
+ if((ptr = strchr(buffer, '\r')) != NULL)
+ *ptr = '\0';
+ if((ptr = strchr(buffer, '\n')) != NULL)
+ *ptr = '\0';
+ buflen = strlen(buffer);
+ if((ptr = realloc(string, stringlen+buflen+1)) == NULL) {
+ Curl_safefree(string);
+ return PARAM_NO_MEM;
+ }
+ string = ptr;
+ strcpy(string+stringlen, buffer);
+ stringlen += buflen;
+ }
+ }
+ *bufp = string;
+ return PARAM_OK;
+}
+
+ParameterError file2memory(char **bufp, size_t *size, FILE *file)
+{
+ char *newbuf;
+ char *buffer = NULL;
+ size_t alloc = 512;
+ size_t nused = 0;
+ size_t nread;
+
+ if(file) {
+ do {
+ if(!buffer || (alloc == nused)) {
+ /* size_t overflow detection for huge files */
+ if(alloc+1 > ((size_t)-1)/2) {
+ Curl_safefree(buffer);
+ return PARAM_NO_MEM;
+ }
+ alloc *= 2;
+ /* allocate an extra char, reserved space, for null termination */
+ if((newbuf = realloc(buffer, alloc+1)) == NULL) {
+ Curl_safefree(buffer);
+ return PARAM_NO_MEM;
+ }
+ buffer = newbuf;
+ }
+ nread = fread(buffer+nused, 1, alloc-nused, file);
+ nused += nread;
+ } while(nread);
+ /* null terminate the buffer in case it's used as a string later */
+ buffer[nused] = '\0';
+ /* free trailing slack space, if possible */
+ if(alloc != nused) {
+ if((newbuf = realloc(buffer, nused+1)) == NULL) {
+ Curl_safefree(buffer);
+ return PARAM_NO_MEM;
+ }
+ buffer = newbuf;
+ }
+ /* discard buffer if nothing was read */
+ if(!nused) {
+ Curl_safefree(buffer); /* no string */
+ }
+ }
+ *size = nused;
+ *bufp = buffer;
+ return PARAM_OK;
+}
+
+void cleanarg(char *str)
+{
+#ifdef HAVE_WRITABLE_ARGV
+ /* now that GetStr has copied the contents of nextarg, wipe the next
+ * argument out so that the username:password isn't displayed in the
+ * system process list */
+ if(str) {
+ size_t len = strlen(str);
+ memset(str, ' ', len);
+ }
+#else
+ (void)str;
+#endif
+}
+
+/*
+ * Parse the string and write the integer in the given address. Return
+ * non-zero on failure, zero on success.
+ *
+ * The string must start with a digit to be valid.
+ *
+ * Since this function gets called with the 'nextarg' pointer from within the
+ * getparameter a lot, we must check it for NULL before accessing the str
+ * data.
+ */
+
+int str2num(long *val, const char *str)
+{
+ if(str && ISDIGIT(*str)) {
+ char *endptr;
+ long num = strtol(str, &endptr, 10);
+ if((endptr != str) && (endptr == str + strlen(str))) {
+ *val = num;
+ return 0; /* Ok */
+ }
+ }
+ return 1; /* badness */
+}
+
+/*
+ * Parse the string and modify the long in the given address. Return
+ * non-zero on failure, zero on success.
+ *
+ * The string is a list of protocols
+ *
+ * Since this function gets called with the 'nextarg' pointer from within the
+ * getparameter a lot, we must check it for NULL before accessing the str
+ * data.
+ */
+
+long proto2num(struct Configurable *config, long *val, const char *str)
+{
+ char *buffer;
+ const char *sep = ",";
+ char *token;
+
+ static struct sprotos {
+ const char *name;
+ long bit;
+ } const protos[] = {
+ { "all", CURLPROTO_ALL },
+ { "http", CURLPROTO_HTTP },
+ { "https", CURLPROTO_HTTPS },
+ { "ftp", CURLPROTO_FTP },
+ { "ftps", CURLPROTO_FTPS },
+ { "scp", CURLPROTO_SCP },
+ { "sftp", CURLPROTO_SFTP },
+ { "telnet", CURLPROTO_TELNET },
+ { "ldap", CURLPROTO_LDAP },
+ { "ldaps", CURLPROTO_LDAPS },
+ { "dict", CURLPROTO_DICT },
+ { "file", CURLPROTO_FILE },
+ { "tftp", CURLPROTO_TFTP },
+ { "imap", CURLPROTO_IMAP },
+ { "imaps", CURLPROTO_IMAPS },
+ { "pop3", CURLPROTO_POP3 },
+ { "pop3s", CURLPROTO_POP3S },
+ { "smtp", CURLPROTO_SMTP },
+ { "smtps", CURLPROTO_SMTPS },
+ { "rtsp", CURLPROTO_RTSP },
+ { "gopher", CURLPROTO_GOPHER },
+ { NULL, 0 }
+ };
+
+ if(!str)
+ return 1;
+
+ buffer = strdup(str); /* because strtok corrupts it */
+ if(!buffer)
+ return 1;
+
+ for(token = strtok(buffer, sep);
+ token;
+ token = strtok(NULL, sep)) {
+ enum e_action { allow, deny, set } action = allow;
+
+ struct sprotos const *pp;
+
+ /* Process token modifiers */
+ while(!ISALNUM(*token)) { /* may be NULL if token is all modifiers */
+ switch (*token++) {
+ case '=':
+ action = set;
+ break;
+ case '-':
+ action = deny;
+ break;
+ case '+':
+ action = allow;
+ break;
+ default: /* Includes case of terminating NULL */
+ Curl_safefree(buffer);
+ return 1;
+ }
+ }
+
+ for(pp=protos; pp->name; pp++) {
+ if(curlx_raw_equal(token, pp->name)) {
+ switch (action) {
+ case deny:
+ *val &= ~(pp->bit);
+ break;
+ case allow:
+ *val |= pp->bit;
+ break;
+ case set:
+ *val = pp->bit;
+ break;
+ }
+ break;
+ }
+ }
+
+ if(!(pp->name)) { /* unknown protocol */
+ /* If they have specified only this protocol, we say treat it as
+ if no protocols are allowed */
+ if(action == set)
+ *val = 0;
+ warnf(config, "unrecognized protocol '%s'\n", token);
+ }
+ }
+ Curl_safefree(buffer);
+ return 0;
+}
+
+/**
+ * Parses the given string looking for an offset (which may be
+ * a larger-than-integer value).
+ *
+ * @param val the offset to populate
+ * @param str the buffer containing the offset
+ * @return zero if successful, non-zero if failure.
+ */
+int str2offset(curl_off_t *val, const char *str)
+{
+#if(CURL_SIZEOF_CURL_OFF_T > CURL_SIZEOF_LONG)
+ *val = curlx_strtoofft(str, NULL, 0);
+ if((*val == CURL_OFF_T_MAX || *val == CURL_OFF_T_MIN) && (ERRNO == ERANGE))
+ return 1;
+#else
+ *val = strtol(str, NULL, 0);
+ if((*val == LONG_MIN || *val == LONG_MAX) && ERRNO == ERANGE)
+ return 1;
+#endif
+ return 0;
+}
+
+ParameterError checkpasswd(const char *kind, /* for what purpose */
+ char **userpwd) /* pointer to allocated string */
+{
+ char *ptr;
+
+ if(!*userpwd)
+ return PARAM_OK;
+
+ ptr = strchr(*userpwd, ':');
+ if(!ptr) {
+ /* no password present, prompt for one */
+ char passwd[256] = "";
+ char prompt[256];
+ size_t passwdlen;
+ size_t userlen = strlen(*userpwd);
+ char *passptr;
+
+ /* build a nice-looking prompt */
+ curlx_msnprintf(prompt, sizeof(prompt),
+ "Enter %s password for user '%s':",
+ kind, *userpwd);
+
+ /* get password */
+ getpass_r(prompt, passwd, sizeof(passwd));
+ passwdlen = strlen(passwd);
+
+ /* extend the allocated memory area to fit the password too */
+ passptr = realloc(*userpwd,
+ passwdlen + 1 + /* an extra for the colon */
+ userlen + 1); /* an extra for the zero */
+ if(!passptr)
+ return PARAM_NO_MEM;
+
+ /* append the password separated with a colon */
+ passptr[userlen] = ':';
+ memcpy(&passptr[userlen+1], passwd, passwdlen+1);
+ *userpwd = passptr;
+ }
+ return PARAM_OK;
+}
+
+ParameterError add2list(struct curl_slist **list, const char *ptr)
+{
+ struct curl_slist *newlist = curl_slist_append(*list, ptr);
+ if(newlist)
+ *list = newlist;
+ else
+ return PARAM_NO_MEM;
+
+ return PARAM_OK;
+}
+
+int ftpfilemethod(struct Configurable *config, const char *str)
+{
+ if(curlx_raw_equal("singlecwd", str))
+ return CURLFTPMETHOD_SINGLECWD;
+ if(curlx_raw_equal("nocwd", str))
+ return CURLFTPMETHOD_NOCWD;
+ if(curlx_raw_equal("multicwd", str))
+ return CURLFTPMETHOD_MULTICWD;
+ warnf(config, "unrecognized ftp file method '%s', using default\n", str);
+ return CURLFTPMETHOD_MULTICWD;
+}
+
+int ftpcccmethod(struct Configurable *config, const char *str)
+{
+ if(curlx_raw_equal("passive", str))
+ return CURLFTPSSL_CCC_PASSIVE;
+ if(curlx_raw_equal("active", str))
+ return CURLFTPSSL_CCC_ACTIVE;
+ warnf(config, "unrecognized ftp CCC method '%s', using default\n", str);
+ return CURLFTPSSL_CCC_PASSIVE;
+}
+
+long delegation(struct Configurable *config, char *str)
+{
+ if(curlx_raw_equal("none", str))
+ return CURLGSSAPI_DELEGATION_NONE;
+ if(curlx_raw_equal("policy", str))
+ return CURLGSSAPI_DELEGATION_POLICY_FLAG;
+ if(curlx_raw_equal("always", str))
+ return CURLGSSAPI_DELEGATION_FLAG;
+ warnf(config, "unrecognized delegation method '%s', using none\n", str);
+ return CURLGSSAPI_DELEGATION_NONE;
+}
+
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