diff options
Diffstat (limited to 'lib/libfetch/fetch.c')
-rw-r--r-- | lib/libfetch/fetch.c | 451 |
1 files changed, 224 insertions, 227 deletions
diff --git a/lib/libfetch/fetch.c b/lib/libfetch/fetch.c index 66b6fe0..33b9787 100644 --- a/lib/libfetch/fetch.c +++ b/lib/libfetch/fetch.c @@ -57,10 +57,10 @@ int fetchDebug; #define URL_BAD_SCHEME 2 #define URL_BAD_PORT 3 static struct fetcherr _url_errlist[] = { - { URL_MALFORMED, FETCH_URL, "Malformed URL" }, - { URL_BAD_SCHEME, FETCH_URL, "Invalid URL scheme" }, - { URL_BAD_PORT, FETCH_URL, "Invalid server port" }, - { -1, FETCH_UNKNOWN, "Unknown parser error" } + { URL_MALFORMED, FETCH_URL, "Malformed URL" }, + { URL_BAD_SCHEME, FETCH_URL, "Invalid URL scheme" }, + { URL_BAD_PORT, FETCH_URL, "Invalid server port" }, + { -1, FETCH_UNKNOWN, "Unknown parser error" } }; @@ -74,19 +74,19 @@ static struct fetcherr _url_errlist[] = { FILE * fetchXGet(struct url *URL, struct url_stat *us, const char *flags) { - int direct; - - direct = CHECK_FLAG('d'); - if (strcasecmp(URL->scheme, SCHEME_FILE) == 0) - return fetchXGetFile(URL, us, flags); - else if (strcasecmp(URL->scheme, SCHEME_HTTP) == 0) - return fetchXGetHTTP(URL, us, flags); - else if (strcasecmp(URL->scheme, SCHEME_FTP) == 0) { - return fetchXGetFTP(URL, us, flags); - } else { - _url_seterr(URL_BAD_SCHEME); - return NULL; - } + int direct; + + direct = CHECK_FLAG('d'); + if (strcasecmp(URL->scheme, SCHEME_FILE) == 0) + return (fetchXGetFile(URL, us, flags)); + else if (strcasecmp(URL->scheme, SCHEME_HTTP) == 0) + return (fetchXGetHTTP(URL, us, flags)); + else if (strcasecmp(URL->scheme, SCHEME_FTP) == 0) { + return (fetchXGetFTP(URL, us, flags)); + } else { + _url_seterr(URL_BAD_SCHEME); + return (NULL); + } } /* @@ -96,7 +96,7 @@ fetchXGet(struct url *URL, struct url_stat *us, const char *flags) FILE * fetchGet(struct url *URL, const char *flags) { - return fetchXGet(URL, NULL, flags); + return (fetchXGet(URL, NULL, flags)); } /* @@ -106,19 +106,19 @@ fetchGet(struct url *URL, const char *flags) FILE * fetchPut(struct url *URL, const char *flags) { - int direct; - - direct = CHECK_FLAG('d'); - if (strcasecmp(URL->scheme, SCHEME_FILE) == 0) - return fetchPutFile(URL, flags); - else if (strcasecmp(URL->scheme, SCHEME_HTTP) == 0) - return fetchPutHTTP(URL, flags); - else if (strcasecmp(URL->scheme, SCHEME_FTP) == 0) { - return fetchPutFTP(URL, flags); - } else { - _url_seterr(URL_BAD_SCHEME); - return NULL; - } + int direct; + + direct = CHECK_FLAG('d'); + if (strcasecmp(URL->scheme, SCHEME_FILE) == 0) + return (fetchPutFile(URL, flags)); + else if (strcasecmp(URL->scheme, SCHEME_HTTP) == 0) + return (fetchPutHTTP(URL, flags)); + else if (strcasecmp(URL->scheme, SCHEME_FTP) == 0) { + return (fetchPutFTP(URL, flags)); + } else { + _url_seterr(URL_BAD_SCHEME); + return (NULL); + } } /* @@ -128,19 +128,17 @@ fetchPut(struct url *URL, const char *flags) int fetchStat(struct url *URL, struct url_stat *us, const char *flags) { - int direct; - - direct = CHECK_FLAG('d'); - if (strcasecmp(URL->scheme, SCHEME_FILE) == 0) - return fetchStatFile(URL, us, flags); - else if (strcasecmp(URL->scheme, SCHEME_HTTP) == 0) - return fetchStatHTTP(URL, us, flags); - else if (strcasecmp(URL->scheme, SCHEME_FTP) == 0) { - return fetchStatFTP(URL, us, flags); - } else { + int direct; + + direct = CHECK_FLAG('d'); + if (strcasecmp(URL->scheme, SCHEME_FILE) == 0) + return (fetchStatFile(URL, us, flags)); + else if (strcasecmp(URL->scheme, SCHEME_HTTP) == 0) + return (fetchStatHTTP(URL, us, flags)); + else if (strcasecmp(URL->scheme, SCHEME_FTP) == 0) + return (fetchStatFTP(URL, us, flags)); _url_seterr(URL_BAD_SCHEME); - return -1; - } + return (-1); } /* @@ -150,19 +148,17 @@ fetchStat(struct url *URL, struct url_stat *us, const char *flags) struct url_ent * fetchList(struct url *URL, const char *flags) { - int direct; - - direct = CHECK_FLAG('d'); - if (strcasecmp(URL->scheme, SCHEME_FILE) == 0) - return fetchListFile(URL, flags); - else if (strcasecmp(URL->scheme, SCHEME_HTTP) == 0) - return fetchListHTTP(URL, flags); - else if (strcasecmp(URL->scheme, SCHEME_FTP) == 0) { - return fetchListFTP(URL, flags); - } else { + int direct; + + direct = CHECK_FLAG('d'); + if (strcasecmp(URL->scheme, SCHEME_FILE) == 0) + return (fetchListFile(URL, flags)); + else if (strcasecmp(URL->scheme, SCHEME_HTTP) == 0) + return (fetchListHTTP(URL, flags)); + else if (strcasecmp(URL->scheme, SCHEME_FTP) == 0) + return (fetchListFTP(URL, flags)); _url_seterr(URL_BAD_SCHEME); - return NULL; - } + return (NULL); } /* @@ -171,16 +167,16 @@ fetchList(struct url *URL, const char *flags) FILE * fetchXGetURL(const char *URL, struct url_stat *us, const char *flags) { - struct url *u; - FILE *f; - - if ((u = fetchParseURL(URL)) == NULL) - return NULL; - - f = fetchXGet(u, us, flags); - - fetchFreeURL(u); - return f; + struct url *u; + FILE *f; + + if ((u = fetchParseURL(URL)) == NULL) + return (NULL); + + f = fetchXGet(u, us, flags); + + fetchFreeURL(u); + return (f); } /* @@ -189,7 +185,7 @@ fetchXGetURL(const char *URL, struct url_stat *us, const char *flags) FILE * fetchGetURL(const char *URL, const char *flags) { - return fetchXGetURL(URL, NULL, flags); + return (fetchXGetURL(URL, NULL, flags)); } /* @@ -198,16 +194,16 @@ fetchGetURL(const char *URL, const char *flags) FILE * fetchPutURL(const char *URL, const char *flags) { - struct url *u; - FILE *f; - - if ((u = fetchParseURL(URL)) == NULL) - return NULL; - - f = fetchPut(u, flags); - - fetchFreeURL(u); - return f; + struct url *u; + FILE *f; + + if ((u = fetchParseURL(URL)) == NULL) + return (NULL); + + f = fetchPut(u, flags); + + fetchFreeURL(u); + return (f); } /* @@ -216,16 +212,16 @@ fetchPutURL(const char *URL, const char *flags) int fetchStatURL(const char *URL, struct url_stat *us, const char *flags) { - struct url *u; - int s; + struct url *u; + int s; - if ((u = fetchParseURL(URL)) == NULL) - return -1; + if ((u = fetchParseURL(URL)) == NULL) + return (-1); - s = fetchStat(u, us, flags); + s = fetchStat(u, us, flags); - fetchFreeURL(u); - return s; + fetchFreeURL(u); + return (s); } /* @@ -234,16 +230,16 @@ fetchStatURL(const char *URL, struct url_stat *us, const char *flags) struct url_ent * fetchListURL(const char *URL, const char *flags) { - struct url *u; - struct url_ent *ue; + struct url *u; + struct url_ent *ue; - if ((u = fetchParseURL(URL)) == NULL) - return NULL; + if ((u = fetchParseURL(URL)) == NULL) + return (NULL); - ue = fetchList(u, flags); + ue = fetchList(u, flags); - fetchFreeURL(u); - return ue; + fetchFreeURL(u); + return (ue); } /* @@ -253,39 +249,39 @@ struct url * fetchMakeURL(const char *scheme, const char *host, int port, const char *doc, const char *user, const char *pwd) { - struct url *u; - - if (!scheme || (!host && !doc)) { - _url_seterr(URL_MALFORMED); - return NULL; - } - - if (port < 0 || port > 65535) { - _url_seterr(URL_BAD_PORT); - return NULL; - } - - /* allocate struct url */ - if ((u = calloc(1, sizeof *u)) == NULL) { - _fetch_syserr(); - return NULL; - } - - if ((u->doc = strdup(doc ? doc : "/")) == NULL) { - _fetch_syserr(); - free(u); - return NULL; - } - + struct url *u; + + if (!scheme || (!host && !doc)) { + _url_seterr(URL_MALFORMED); + return (NULL); + } + + if (port < 0 || port > 65535) { + _url_seterr(URL_BAD_PORT); + return (NULL); + } + + /* allocate struct url */ + if ((u = calloc(1, sizeof *u)) == NULL) { + _fetch_syserr(); + return (NULL); + } + + if ((u->doc = strdup(doc ? doc : "/")) == NULL) { + _fetch_syserr(); + free(u); + return (NULL); + } + #define seturl(x) snprintf(u->x, sizeof u->x, "%s", x) - seturl(scheme); - seturl(host); - seturl(user); - seturl(pwd); + seturl(scheme); + seturl(host); + seturl(user); + seturl(pwd); #undef seturl - u->port = port; + u->port = port; - return u; + return (u); } /* @@ -296,112 +292,113 @@ fetchMakeURL(const char *scheme, const char *host, int port, const char *doc, struct url * fetchParseURL(const char *URL) { - char *doc; - const char *p, *q; - struct url *u; - int i; - - /* allocate struct url */ - if ((u = calloc(1, sizeof *u)) == NULL) { - _fetch_syserr(); - return NULL; - } - - /* scheme name */ - if ((p = strstr(URL, ":/"))) { - snprintf(u->scheme, URL_SCHEMELEN+1, "%.*s", (int)(p - URL), URL); - URL = ++p; - /* - * Only one slash: no host, leave slash as part of document - * Two slashes: host follows, strip slashes - */ - if (URL[1] == '/') - URL = (p += 2); - } else { - p = URL; - } - if (!*URL || *URL == '/' || *URL == '.' || - (u->scheme[0] == '\0' && - strchr(URL, '/') == NULL && strchr(URL, ':') == NULL)) - goto nohost; - - p = strpbrk(URL, "/@"); - if (p && *p == '@') { - /* username */ - for (q = URL, i = 0; (*q != ':') && (*q != '@'); q++) - if (i < URL_USERLEN) - u->user[i++] = *q; - - /* password */ - if (*q == ':') - for (q++, i = 0; (*q != ':') && (*q != '@'); q++) - if (i < URL_PWDLEN) - u->pwd[i++] = *q; - - p++; - } else { - p = URL; - } - - /* hostname */ + char *doc; + const char *p, *q; + struct url *u; + int i; + + /* allocate struct url */ + if ((u = calloc(1, sizeof *u)) == NULL) { + _fetch_syserr(); + return (NULL); + } + + /* scheme name */ + if ((p = strstr(URL, ":/"))) { + snprintf(u->scheme, URL_SCHEMELEN+1, + "%.*s", (int)(p - URL), URL); + URL = ++p; + /* + * Only one slash: no host, leave slash as part of document + * Two slashes: host follows, strip slashes + */ + if (URL[1] == '/') + URL = (p += 2); + } else { + p = URL; + } + if (!*URL || *URL == '/' || *URL == '.' || + (u->scheme[0] == '\0' && + strchr(URL, '/') == NULL && strchr(URL, ':') == NULL)) + goto nohost; + + p = strpbrk(URL, "/@"); + if (p && *p == '@') { + /* username */ + for (q = URL, i = 0; (*q != ':') && (*q != '@'); q++) + if (i < URL_USERLEN) + u->user[i++] = *q; + + /* password */ + if (*q == ':') + for (q++, i = 0; (*q != ':') && (*q != '@'); q++) + if (i < URL_PWDLEN) + u->pwd[i++] = *q; + + p++; + } else { + p = URL; + } + + /* hostname */ #ifdef INET6 - if (*p == '[' && (q = strchr(p + 1, ']')) != NULL && - (*++q == '\0' || *q == '/' || *q == ':')) { - if ((i = q - p - 2) > MAXHOSTNAMELEN) - i = MAXHOSTNAMELEN; - strncpy(u->host, ++p, i); - p = q; - } else + if (*p == '[' && (q = strchr(p + 1, ']')) != NULL && + (*++q == '\0' || *q == '/' || *q == ':')) { + if ((i = q - p - 2) > MAXHOSTNAMELEN) + i = MAXHOSTNAMELEN; + strncpy(u->host, ++p, i); + p = q; + } else #endif - for (i = 0; *p && (*p != '/') && (*p != ':'); p++) - if (i < MAXHOSTNAMELEN) - u->host[i++] = *p; - - /* port */ - if (*p == ':') { - for (q = ++p; *q && (*q != '/'); q++) - if (isdigit(*q)) - u->port = u->port * 10 + (*q - '0'); - else { - /* invalid port */ - _url_seterr(URL_BAD_PORT); - goto ouch; - } - p = q; - } + for (i = 0; *p && (*p != '/') && (*p != ':'); p++) + if (i < MAXHOSTNAMELEN) + u->host[i++] = *p; + + /* port */ + if (*p == ':') { + for (q = ++p; *q && (*q != '/'); q++) + if (isdigit(*q)) + u->port = u->port * 10 + (*q - '0'); + else { + /* invalid port */ + _url_seterr(URL_BAD_PORT); + goto ouch; + } + p = q; + } nohost: - /* document */ - if (!*p) - p = "/"; - - if (strcasecmp(u->scheme, SCHEME_HTTP) == 0 || - strcasecmp(u->scheme, SCHEME_HTTPS) == 0) { - const char hexnums[] = "0123456789abcdef"; - - /* percent-escape whitespace. */ - if ((doc = malloc(strlen(p) * 3 + 1)) == NULL) { - _fetch_syserr(); - goto ouch; - } - u->doc = doc; - while (*p != '\0') { - if (!isspace(*p)) { - *doc++ = *p++; - } else { - *doc++ = '%'; - *doc++ = hexnums[((unsigned int)*p) >> 4]; - *doc++ = hexnums[((unsigned int)*p) & 0xf]; - p++; - } + /* document */ + if (!*p) + p = "/"; + + if (strcasecmp(u->scheme, SCHEME_HTTP) == 0 || + strcasecmp(u->scheme, SCHEME_HTTPS) == 0) { + const char hexnums[] = "0123456789abcdef"; + + /* percent-escape whitespace. */ + if ((doc = malloc(strlen(p) * 3 + 1)) == NULL) { + _fetch_syserr(); + goto ouch; + } + u->doc = doc; + while (*p != '\0') { + if (!isspace(*p)) { + *doc++ = *p++; + } else { + *doc++ = '%'; + *doc++ = hexnums[((unsigned int)*p) >> 4]; + *doc++ = hexnums[((unsigned int)*p) & 0xf]; + p++; + } + } + *doc = '\0'; + } else if ((u->doc = strdup(p)) == NULL) { + _fetch_syserr(); + goto ouch; } - *doc = '\0'; - } else if ((u->doc = strdup(p)) == NULL) { - _fetch_syserr(); - goto ouch; - } - - DEBUG(fprintf(stderr, + + DEBUG(fprintf(stderr, "scheme: [%s]\n" "user: [%s]\n" "password: [%s]\n" @@ -410,12 +407,12 @@ nohost: "document: [%s]\n", u->scheme, u->user, u->pwd, u->host, u->port, u->doc)); - - return u; + + return (u); ouch: - free(u); - return NULL; + free(u); + return (NULL); } /* @@ -424,6 +421,6 @@ ouch: void fetchFreeURL(struct url *u) { - free(u->doc); - free(u); + free(u->doc); + free(u); } |