/** \ingroup rpmio * \file rpmio/url.c */ #include "system.h" #include #include #include #include #include #include #include #include "debug.h" /** */ static struct urlstring { const char * leadin; urltype ret; } const urlstrings[] = { { "file://", URL_IS_PATH }, { "ftp://", URL_IS_FTP }, { "hkp://", URL_IS_HKP }, { "http://", URL_IS_HTTP }, { "https://", URL_IS_HTTPS }, { NULL, URL_IS_UNKNOWN } }; urltype urlIsURL(const char * url) { const struct urlstring *us; if (url && *url) { for (us = urlstrings; us->leadin != NULL; us++) { if (!rstreqn(url, us->leadin, strlen(us->leadin))) continue; return us->ret; } if (rstreq(url, "-")) return URL_IS_DASH; } return URL_IS_UNKNOWN; } /* Return path portion of url (or pointer to NUL if url == NULL) */ urltype urlPath(const char * url, const char ** pathp) { const char *path; urltype type; path = url; type = urlIsURL(url); switch (type) { case URL_IS_FTP: url += sizeof("ftp://") - 1; path = strchr(url, '/'); if (path == NULL) path = url + strlen(url); break; case URL_IS_PATH: url += sizeof("file://") - 1; path = strchr(url, '/'); if (path == NULL) path = url + strlen(url); break; case URL_IS_HKP: url += sizeof("hkp://") - 1; path = strchr(url, '/'); if (path == NULL) path = url + strlen(url); break; case URL_IS_HTTP: url += sizeof("http://") - 1; path = strchr(url, '/'); if (path == NULL) path = url + strlen(url); break; case URL_IS_HTTPS: url += sizeof("https://") - 1; path = strchr(url, '/'); if (path == NULL) path = url + strlen(url); break; case URL_IS_UNKNOWN: if (path == NULL) path = ""; break; case URL_IS_DASH: path = ""; break; } if (pathp) *pathp = path; return type; } int urlGetFile(const char * url, const char * dest) { char *cmd = NULL; const char *target = NULL; char *urlhelper = NULL; int rc; pid_t pid, wait; urlhelper = rpmExpand("%{?_urlhelper}", NULL); if (dest == NULL) { urlPath(url, &target); } else { target = dest; } /* XXX TODO: sanity checks like target == dest... */ rasprintf(&cmd, "%s %s %s", urlhelper, target, url); urlhelper = _free(urlhelper); if ((pid = fork()) == 0) { ARGV_t argv = NULL; argvSplit(&argv, cmd, " "); execvp(argv[0], argv); exit(127); /* exit with 127 for compatibility with bash(1) */ } wait = waitpid(pid, &rc, 0); cmd = _free(cmd); return rc; }