FreeCalypso > hg > freecalypso-sw
view lcdemu/xrm.c @ 992:a7b0b426f9ca
target-utils: boot ROM UART autodetection revamped
The new implementation should work with both the familiar Calypso C035
boot ROM version found in our regular targets as well as the older
Calypso F741979B version found on the vintage D-Sample board.
author | Mychaela Falconia <falcon@ivan.Harhan.ORG> |
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date | Wed, 30 Dec 2015 21:28:41 +0000 |
parents | 312778104f54 |
children |
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/* * LCDemu based on HECterm by the same author * Xrm functions */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include <X11/Xlib.h> #include <X11/Xresource.h> #include <X11/Xutil.h> #include "globals.h" static char appdefaults_pathname[] = "/usr/local/share/freecalypso/lcdemu-defaults"; load_resources() { xrmquark_topclass = XrmStringToQuark("LCDemu"); xrmquark_topinstance = XrmStringToQuark(proginstancename); xrmdb_defaults = XrmGetFileDatabase(appdefaults_pathname); xrmdb_displayres = XrmGetStringDatabase(XResourceManagerString(mydisplay)); } /* * The following function looks up a resource in all of our databases * and returns a pointer (char *) to the value in a malloced buffer that * can be freed when it is no longer needed. My reading of X11R4 * documentation indicates that resource values returned from Xrm functions * are not necessarily NUL-terminated (no claim is made that they are * and XrmValue structure has a size field), which is why I copy to * my own buffer and NUL-terminate it there. * * Returns NULL pointer if not found in any of the databases. */ char * xrm_lookup(instquarks, classquarks) XrmQuark *instquarks, *classquarks; { XrmRepresentation reptype; XrmValue value; register char *buf; if (XrmQGetResource(xrmdb_cmdline, instquarks, classquarks, &reptype, &value)) goto found; if (XrmQGetResource(xrmdb_displayres, instquarks, classquarks, &reptype, &value)) goto found; if (XrmQGetResource(xrmdb_defaults, instquarks, classquarks, &reptype, &value)) goto found; return(NULL); found: buf = malloc(value.size + 1); if (!buf) { perror("malloc"); exit(1); } bcopy(value.addr, buf, value.size); buf[value.size] = '\0'; return(buf); } parse_boolean_resource(str) register char *str; { if (!strcasecmp(str, "on") || !strcasecmp(str, "true") || !strcasecmp(str, "yes")) return(1); if (!strcasecmp(str, "off") || !strcasecmp(str, "false") || !strcasecmp(str, "no")) return(0); return(atoi(str)); } get_boolean_resource(resource, def) char *resource; int def; { XrmQuark instquarks[3], classquarks[3]; register char *cp; register int i; instquarks[0] = xrmquark_topinstance; classquarks[0] = xrmquark_topclass; classquarks[1] = instquarks[1] = XrmStringToQuark(resource); instquarks[2] = classquarks[2] = NULLQUARK; cp = xrm_lookup(instquarks, classquarks); if (cp) { i = parse_boolean_resource(cp); free(cp); } else i = def; return(i); }