FreeCalypso > hg > freecalypso-tools
view lcdemu/xrm.c @ 105:6803e0e83b30
target-utils: pirexplore converted to our own libc
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 01 Nov 2016 00:38:49 +0000 |
parents | e7502631a0f9 |
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); }