Fossil

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Overview
Comment:Mark functions that never return (ex: fossil_panic()) as such so that static analyzers can do a better job of pruning paths.
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 86d2b4efc8367e5300baa613ef13d092cc48927b
User & Date: drh 2011-10-15 12:16:04.014
Context
2011-10-15
12:30
Fix clang static analyzer warnings about deref null pointers and undefined values. There are still lots of dead code warnings, but those are harmless. ... (check-in: 630691456b user: drh tags: trunk)
12:16
Mark functions that never return (ex: fossil_panic()) as such so that static analyzers can do a better job of pruning paths. ... (check-in: 86d2b4efc8 user: drh tags: trunk)
10:40
Update the built-in SQLite and the SQL command-line shell to the latest code from the SQLite trunk: version 3.7.9 alpha. This fixes some warnings that started appearing after upgrading to gcc 4.6.1. ... (check-in: 3dd0c15583 user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/cgi.c.
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}

/*
** Do a redirect request to the URL given in the argument.
**
** The URL must be relative to the base of the fossil server.
*/
void cgi_redirect(const char *zURL){
  char *zLocation;
  CGIDEBUG(("redirect to %s\n", zURL));
  if( strncmp(zURL,"http:",5)==0 || strncmp(zURL,"https:",6)==0 ){
    zLocation = mprintf("Location: %s\r\n", zURL);
  }else if( *zURL=='/' ){
    zLocation = mprintf("Location: %.*s%s\r\n",
         strlen(g.zBaseURL)-strlen(g.zTop), g.zBaseURL, zURL);
  }else{
    zLocation = mprintf("Location: %s/%s\r\n", g.zBaseURL, zURL);
  }
  cgi_append_header(zLocation);
  cgi_reset_content();
  cgi_printf("<html>\n<p>Redirect to %h</p>\n</html>\n", zLocation);
  cgi_set_status(302, "Moved Temporarily");
  free(zLocation);
  cgi_reply();
  fossil_exit(0);
}
void cgi_redirectf(const char *zFormat, ...){
  va_list ap;
  va_start(ap, zFormat);
  cgi_redirect(vmprintf(zFormat, ap));
  va_end(ap);
}

/*







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}

/*
** Do a redirect request to the URL given in the argument.
**
** The URL must be relative to the base of the fossil server.
*/
NORETURN void cgi_redirect(const char *zURL){
  char *zLocation;
  CGIDEBUG(("redirect to %s\n", zURL));
  if( strncmp(zURL,"http:",5)==0 || strncmp(zURL,"https:",6)==0 ){
    zLocation = mprintf("Location: %s\r\n", zURL);
  }else if( *zURL=='/' ){
    zLocation = mprintf("Location: %.*s%s\r\n",
         strlen(g.zBaseURL)-strlen(g.zTop), g.zBaseURL, zURL);
  }else{
    zLocation = mprintf("Location: %s/%s\r\n", g.zBaseURL, zURL);
  }
  cgi_append_header(zLocation);
  cgi_reset_content();
  cgi_printf("<html>\n<p>Redirect to %h</p>\n</html>\n", zLocation);
  cgi_set_status(302, "Moved Temporarily");
  free(zLocation);
  cgi_reply();
  fossil_exit(0);
}
NORETURN void cgi_redirectf(const char *zFormat, ...){
  va_list ap;
  va_start(ap, zFormat);
  cgi_redirect(vmprintf(zFormat, ap));
  va_end(ap);
}

/*
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  vxprintf(pContent,zFormat,ap);
}


/*
** Send a reply indicating that the HTTP request was malformed
*/
static void malformed_request(void){
  cgi_set_status(501, "Not Implemented");
  cgi_printf(
    "<html><body>Unrecognized HTTP Request</body></html>\n"
  );
  cgi_reply();
  fossil_exit(0);
}

/*
** Panic and die while processing a webpage.
*/
void cgi_panic(const char *zFormat, ...){
  va_list ap;
  cgi_reset_content();
  cgi_set_status(500, "Internal Server Error");
  cgi_printf(
    "<html><body><h1>Internal Server Error</h1>\n"
    "<plaintext>"
  );







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  vxprintf(pContent,zFormat,ap);
}


/*
** Send a reply indicating that the HTTP request was malformed
*/
static NORETURN void malformed_request(void){
  cgi_set_status(501, "Not Implemented");
  cgi_printf(
    "<html><body>Unrecognized HTTP Request</body></html>\n"
  );
  cgi_reply();
  fossil_exit(0);
}

/*
** Panic and die while processing a webpage.
*/
NORETURN void cgi_panic(const char *zFormat, ...){
  va_list ap;
  cgi_reset_content();
  cgi_set_status(500, "Internal Server Error");
  cgi_printf(
    "<html><body><h1>Internal Server Error</h1>\n"
    "<plaintext>"
  );
Changes to src/config.h.
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# define FOSSIL_INT_TO_PTR(X)  ((void*)&((char*)0)[X])
# define FOSSIL_PTR_TO_INT(X)  ((int)(((char*)X)-(char*)0))
#else                          /* Generates a warning - but it always works */
# define FOSSIL_INT_TO_PTR(X)  ((void*)(X))
# define FOSSIL_PTR_TO_INT(X)  ((int)(X))
#endif










#endif /* _RC_COMPILE_ */







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# define FOSSIL_INT_TO_PTR(X)  ((void*)&((char*)0)[X])
# define FOSSIL_PTR_TO_INT(X)  ((int)(((char*)X)-(char*)0))
#else                          /* Generates a warning - but it always works */
# define FOSSIL_INT_TO_PTR(X)  ((void*)(X))
# define FOSSIL_PTR_TO_INT(X)  ((int)(X))
#endif

/*
** A marker for functions that never return.
*/
#if defined(__GNUC__) || defined(__clang__)
# define NORETURN __attribute__((__noreturn__))
#else
# define NORETURN
#endif

#endif /* _RC_COMPILE_ */
Changes to src/main.c.
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  return g.argv[0];
#endif
}

/*
** Exit.  Take care to close the database first.
*/
void fossil_exit(int rc){
  db_close(1);
  exit(rc);
}

/*
** Print an error message, rollback all databases, and quit.  These
** routines never return.
*/
void fossil_panic(const char *zFormat, ...){
  char *z;
  va_list ap;
  static int once = 1;
  mainInFatalError = 1;
  va_start(ap, zFormat);
  z = vmprintf(zFormat, ap);
  va_end(ap);
  if( g.cgiOutput && once ){
    once = 0;
    cgi_printf("<p class=\"generalError\">%h</p>", z);
    cgi_reply();
  }else{
    char *zOut = mprintf("%s: %s\n", fossil_nameofexe(), z);
    fossil_puts(zOut, 1);
  }
  db_force_rollback();
  fossil_exit(1);
}
void fossil_fatal(const char *zFormat, ...){
  char *z;
  va_list ap;
  mainInFatalError = 1;
  va_start(ap, zFormat);
  z = vmprintf(zFormat, ap);
  va_end(ap);
  if( g.cgiOutput ){







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  return g.argv[0];
#endif
}

/*
** Exit.  Take care to close the database first.
*/
NORETURN void fossil_exit(int rc){
  db_close(1);
  exit(rc);
}

/*
** Print an error message, rollback all databases, and quit.  These
** routines never return.
*/
NORETURN void fossil_panic(const char *zFormat, ...){
  char *z;
  va_list ap;
  static int once = 1;
  mainInFatalError = 1;
  va_start(ap, zFormat);
  z = vmprintf(zFormat, ap);
  va_end(ap);
  if( g.cgiOutput && once ){
    once = 0;
    cgi_printf("<p class=\"generalError\">%h</p>", z);
    cgi_reply();
  }else{
    char *zOut = mprintf("%s: %s\n", fossil_nameofexe(), z);
    fossil_puts(zOut, 1);
  }
  db_force_rollback();
  fossil_exit(1);
}
NORETURN void fossil_fatal(const char *zFormat, ...){
  char *z;
  va_list ap;
  mainInFatalError = 1;
  va_start(ap, zFormat);
  z = vmprintf(zFormat, ap);
  va_end(ap);
  if( g.cgiOutput ){
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    g.zTop = &g.zBaseURL[7+strlen(zHost)];
  }
}

/*
** Send an HTTP redirect back to the designated Index Page.
*/
void fossil_redirect_home(void){
  cgi_redirectf("%s%s", g.zTop, db_get("index-page", "/index"));
}

/*
** If running as root, chroot to the directory containing the
** repository zRepo and then drop root privileges.  Return the
** new repository name.







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    g.zTop = &g.zBaseURL[7+strlen(zHost)];
  }
}

/*
** Send an HTTP redirect back to the designated Index Page.
*/
NORETURN void fossil_redirect_home(void){
  cgi_redirectf("%s%s", g.zTop, db_get("index-page", "/index"));
}

/*
** If running as root, chroot to the directory containing the
** repository zRepo and then drop root privileges.  Return the
** new repository name.