--- /dev/null
+CFLAGS= -Wall -Wwrite-strings -Wmissing-prototypes -Wstrict-prototypes \
+ -Wpointer-arith -O2 -g -DREALLY_CHECK_FILE='"/etc/inittab"'
+LDFLAGS=
+
+TARGETS=really ucgi ucgitarget
+
+all: $(TARGETS)
+
+ucgi: ucgi.o ucgicommon.o
+
+ucgitarget: ucgitarget.o ucgicommon.o
+
+really: really.o myopt.o
+
+really-test: really Makefile
+ rm -f really-test
+ cp really really-test
+ really chown root.staff really-test
+ really chmod 4770 really-test
+
+really-check: really-test really.testcases
+ ./really.testcases
--- /dev/null
+/*
+ * Usage: as CGI script
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include "ucgi.h"
+
+int main(int argc, const char **argv) {
+ char *defarg, *username;
+ const char *slash2, *pathi, *ev, *en, *av;
+ const char *const *ep;
+ const char **arguments;
+ size_t usernamelen, l;
+ pid_t child, rchild;
+ int nargs, status;
+
+ l= strlen(argv[0]);
+ if (l>6 && !strcmp(argv[0]+l-6,"-debug")) debugmode= 1;
+
+ if (debugmode) {
+ if (fputs("Content-Type: text/plain\n\n",stdout)==EOF || fflush(stdout))
+ syserror("write stdout");
+ if (dup2(1,2)<0) { perror("dup stdout to stderr"); exit(-1); }
+ }
+
+ if (argc > MAX_ARGS) error("too many arguments");
+
+ pathi= getenv("PATH_INFO");
+ if (!pathi) error("PATH_INFO not found");
+ if (pathi[0] != '/' || pathi[1] != '~') error("PATH_INFO must start with /~");
+ slash2= strchr(pathi+2,'/'); if (!slash2) error("PATH_INFO must have more than one /");
+ usernamelen= slash2-(pathi+2);
+ if (usernamelen > MAX_USERNAME_LEN) error("PATH_INFO username too long");
+ username= xmalloc(usernamelen+1);
+ memcpy(username,pathi+2,usernamelen); username[usernamelen]= 0;
+ if (!isalpha(username[0])) error("username 1st character is not alphabetic");
+ xsetenv("PATH_INFO",slash2,1);
+
+ arguments= xmalloc(sizeof(const char*)*(nenvok+argc+10));
+ nargs= 0;
+
+ arguments[nargs++]= "userv";
+ if (debugmode) arguments[nargs++]= "-DDEBUG=1";
+
+ for (ep= envok; (en= *ep); ep++) {
+ ev= getenv(en); if (!ev) continue;
+ l= strlen(ev); if (l > MAX_ENVVAR_VALUE) error("environment variable too long");
+ defarg= xmalloc(strlen(en)+l+6);
+ sprintf(defarg,"-DE_%s=%s",en,ev);
+ arguments[nargs++]= defarg;
+ }
+
+ arguments[nargs++]= username;
+ arguments[nargs++]= "www-cgi";
+ while ((av= (*++argv))) arguments[nargs++]= av;
+ arguments[nargs++]= 0;
+
+ if (debugmode) {
+ child= fork(); if (child==-1) syserror("fork");
+ if (child) {
+ rchild= waitpid(child,&status,0);
+ if (rchild==-1) syserror("waitpid");
+ printf("\nexit status %d %d\n",(status>>8)&0x0ff,status&0x0ff);
+ exit(0);
+ }
+ }
+
+ execvp("userv",(char*const*)arguments);
+ syserror("exec userv");
+ return -1;
+}
--- /dev/null
+/**/
+
+#ifndef UCGI_H
+#define UCGI_H
+
+#include <stdlib.h>
+
+#define MAX_ARGS 1024
+#define MAX_USERNAME_LEN 1024
+#define MAX_SCRIPTPATH_LEN 1024
+#define MAX_ENVVAR_VALUE (1024*1024)
+
+void syserror(const char *m);
+void error(const char *m);
+void *xmalloc(size_t sz);
+void xsetenv(const char *en, const char *ev, int overwrite);
+
+extern const char *const envok[];
+extern const int nenvok;
+extern int debugmode;
+
+#endif
--- /dev/null
+/**/
+
+#include <stdio.h>
+#include <string.h>
+
+#include "ucgi.h"
+
+const char *const envok[]= {
+ "CONTENT_LENGTH",
+ "CONTENT_TYPE",
+ "DOCUMENT_ROOT",
+ "GATEWAY_INTERFACE",
+ "HTTP_ACCEPT",
+ "HTTP_ACCEPT_ENCODING",
+ "HTTP_ACCEPT_LANGUAGE",
+ "HTTP_CACHE_CONTROL",
+ "HTTP_HOST",
+ "HTTP_NEGOTIATE",
+ "HTTP_PRAGMA",
+ "HTTP_USER_AGENT",
+ "PATH_INFO",
+ "PATH_TRANSLATED",
+ "QUERY_STRING",
+ "REMOTE_ADDR",
+ "REMOTE_HOST",
+ "REMOTE_USER",
+ "REMOTE_IDENT",
+ "REQUEST_METHOD",
+ "SCRIPT_FILENAME",
+ "SCRIPT_NAME",
+ "SCRIPT_URI",
+ "SCRIPT_URL",
+ "SERVER_ADMIN",
+ "SERVER_NAME",
+ "SERVER_PORT",
+ "SERVER_PROTOCOL",
+ "SERVER_SOFTWARE",
+ 0
+};
+const int nenvok= sizeof(envok)/sizeof(envok[0]);
+
+int debugmode= 0;
+
+static void outerror(void) {
+ perror("stdout");
+ exit(debugmode ? 0 : -1);
+}
+
+void syserror(const char *m) {
+ if (printf("Content-Type: text/plain\n\n"
+ "ucgi: system call error:\n"
+ "%s: %s\n",
+ m,strerror(errno))==EOF || fflush(stdout)) outerror();
+ exit(0);
+}
+
+void error(const char *m) {
+ if (printf("Content-Type: text/plain\n\n"
+ "ucgi: error:\n"
+ "%s\n",
+ m)==EOF || fflush(stdout)) outerror();
+ exit(0);
+}
+
+void *xmalloc(size_t sz) {
+ void *r;
+
+ r= malloc(sz);
+ if (!r) syserror("malloc failed");
+ return r;
+}
+
+void xsetenv(const char *en, const char *ev, int overwrite) {
+ if (setenv(en,ev,overwrite)) syserror("setenv");
+}
--- /dev/null
+/*
+ * Usage: as CGI script, but called by userv
+ * environment variables are USERV_U_E_...
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
+
+#include "ucgi.h"
+
+static void *xrealloc(void *ptr, size_t sz) {
+ void *r;
+
+ r= realloc(ptr,sz);
+ if (!r) syserror("realloc failed");
+ return r;
+}
+
+int main(int argc, const char **argv) {
+ char *uservarn, *scriptpath, *newvar;
+ const char *nextslash, *lastslash, *pathi, *ev, *ev2, *en, *scriptdir, *av;
+ const char *const *ep;
+ const char **arguments;
+ size_t scriptdirlen, scriptpathlen, l, uservarnl;
+ struct stat stab;
+ int r, nargs;
+
+ ev= getenv("USERV_U_DEBUG");
+ if (ev && *ev) debugmode= 1;
+
+ if (argc > MAX_ARGS) error("too many arguments");
+
+ if (!*++argv) error("no script directory argument");
+ ev= getenv("HOME"); if (!ev) error("no HOME env. var");
+ l= strlen(*argv)+strlen(ev);
+ newvar= xmalloc(l+2);
+ sprintf(newvar,"%s/%s",ev,*argv);
+ scriptdir= newvar;
+ scriptdirlen= strlen(scriptdir);
+
+ uservarn= 0;
+ uservarnl= 0;
+ for (ep= envok; (en= *ep); ep++) {
+ l= strlen(en)+11;
+ if (uservarnl<l) { uservarn= xrealloc(uservarn,l); uservarnl= l; }
+ sprintf(uservarn,"USERV_U_E_%s",en);
+ ev= getenv(uservarn); if (!ev) continue;
+ if (strlen(ev) > MAX_ENVVAR_VALUE) error("environment variable too long");
+ if (setenv(en,ev,1)) syserror("setenv");
+ unsetenv(uservarn);
+ }
+
+ scriptpath= 0;
+ pathi= getenv("PATH_INFO");
+ if (!pathi) error("PATH_INFO not found");
+ lastslash= pathi;
+ for (;;) {
+ if (*lastslash != '/') error("PATH_INFO expected slash not found");
+ if (lastslash[1]=='.' || lastslash[1]=='#' || !lastslash[1]) error("bad char begin");
+ nextslash= strchr(lastslash+1,'/');
+ if (!nextslash) nextslash= lastslash+1+strlen(lastslash+1);
+ if (!nextslash) error("insufficient elements in PATH_INFO");
+ if (nextslash==lastslash+1) error("empty component in PATH_INFO");
+ if (nextslash-pathi > MAX_SCRIPTPATH_LEN) error("PATH_INFO script path too long");
+ scriptpathlen= scriptdirlen+(nextslash-pathi);
+ scriptpath= xrealloc(scriptpath,scriptpathlen+1);
+ strcpy(scriptpath,scriptdir);
+ memcpy(scriptpath+scriptdirlen,pathi,nextslash-pathi);
+ scriptpath[scriptpathlen]= 0;
+ if (scriptpath[scriptpathlen-1]=='~') error("bad char end");
+ r= stat(scriptpath,&stab); if (r) syserror("stat script");
+ if (S_ISREG(stab.st_mode)) break;
+ if (!S_ISDIR(stab.st_mode)) syserror("script not directory or file");
+ lastslash= nextslash;
+ }
+ if (*nextslash) xsetenv("PATH_INFO",nextslash,1);
+ else unsetenv("PATH_INFO");
+
+ newvar= xmalloc(scriptpathlen+strlen(nextslash)+3);
+ sprintf(newvar,"%s%s",scriptpath,nextslash);
+ xsetenv("PATH_TRANSLATED",newvar,1);
+
+ xsetenv("SCRIPT_FILENAME",scriptpath,1);
+
+ ev= getenv("SCRIPT_NAME");
+ if (ev) {
+ ev2= getenv("USER"); if (!ev2) error("no USER variable");
+ newvar= xmalloc(strlen(ev)+2+strlen(ev2)+scriptpathlen-scriptdirlen+2);
+ sprintf(newvar,"%s/~%s%s",ev,ev2,scriptpath+scriptdirlen);
+ xsetenv("SCRIPT_NAME",newvar,1);
+ }
+
+ arguments= xmalloc(sizeof(const char*)*(argc+5));
+ nargs= 0;
+
+ arguments[nargs++]= scriptpath;
+ while ((av= (*++argv))) arguments[nargs++]= av;
+ arguments[nargs++]= 0;
+
+ execvp(scriptpath,(char*const*)arguments);
+ syserror("exec script");
+ return -1;
+}
~ian / userv-utils.git / commitdiff