# parseScript.c

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    00001
    00006 #include "system.h"
    00007
    00008 #include "rpmbuild.h"
    00009 #include "debug.h"
    00010
    00011 /*@access StringBuf@*/  /* XXX compared with NULL */
    00012 /*@access poptContext @*/       /* compared with NULL */
    00013
    00016 static int addTriggerIndex(Package pkg, const char *file,
    00017         const char *script, const char *prog)
    00018         /*@modifies pkg->triggerFiles @*/
    00019 {
    00020     struct TriggerFileEntry *tfe;
    00021     struct TriggerFileEntry *list = pkg->triggerFiles;
    00022     struct TriggerFileEntry *last = NULL;
    00023     int index = 0;
    00024
    00025     while (list) {
    00026         last = list;
    00027         list = list->next;
    00028     }
    00029
    00030     if (last)
    00031         index = last->index + 1;
    00032
    00033     tfe = xcalloc(1, sizeof(*tfe));
    00034
    00035     tfe->fileName = (file) ? xstrdup(file) : NULL;
    00036     tfe->script = (script && *script != '\0') ? xstrdup(script) : NULL;
    00037     tfe->prog = xstrdup(prog);
    00038     tfe->index = index;
    00039     tfe->next = NULL;
    00040
    00041     if (last)
    00042         last->next = tfe;
    00043     else
    00044         pkg->triggerFiles = tfe;
    00045
    00046     return index;
    00047 }
    00048
    00049 /* these have to be global because of stupid compilers */
    00050 /*@unchecked@*/
    00051     /*@observer@*/ /*@null@*/ static const char *name = NULL;
    00052 /*@unchecked@*/
    00053     /*@observer@*/ /*@null@*/ static const char *prog = NULL;
    00054 /*@unchecked@*/
    00055     /*@observer@*/ /*@null@*/ static const char *file = NULL;
    00056 /*@unchecked@*/
    00057     static struct poptOption optionsTable[] = {
    00058         { NULL, 'p', POPT_ARG_STRING, &prog, 'p',       NULL, NULL},
    00059         { NULL, 'n', POPT_ARG_STRING, &name, 'n',       NULL, NULL},
    00060         { NULL, 'f', POPT_ARG_STRING, &file, 'f',       NULL, NULL},
    00061         { 0, 0, 0, 0, 0,        NULL, NULL}
    00062     };
    00063
    00064 /* %trigger is a strange combination of %pre and Requires: behavior */
    00065 /* We can handle it by parsing the args before "--" in parseScript. */
    00066 /* We then pass the remaining arguments to parseRCPOT, along with   */
    00067 /* an index we just determined.                                     */
    00068
    00069 int parseScript(Spec spec, int parsePart)
    00070 {
    00071     /* There are a few options to scripts: */
    00072     /*  <pkg>                              */
    00073     /*  -n <pkg>                           */
    00074     /*  -p <sh>                            */
    00075     /*  -p "<sh> <args>..."                */
    00076     /*  -f <file>                          */
    00077
    00078     char *p;
    00079     const char **progArgv = NULL;
    00080     int progArgc;
    00081     char *partname = NULL;
    00082     int reqtag = 0;
    00083     int tag = 0;
    00084     int tagflags = 0;
    00085     int progtag = 0;
    00086     int flag = PART_SUBNAME;
    00087     Package pkg;
    00088     StringBuf sb = NULL;
    00089     int nextPart;
    00090     int index;
    00091     char reqargs[BUFSIZ];
    00092
    00093     int rc, argc;
    00094     int arg;
    00095     const char **argv = NULL;
    00096     poptContext optCon = NULL;
    00097
    00098     reqargs[0] = '\0';
    00099     /*@-mods@*/
    00100     name = NULL;
    00101     prog = "/bin/sh";
    00102     file = NULL;
    00103     /*@=mods@*/
    00104
    00105     /*@-branchstate@*/
    00106     switch (parsePart) {
    00107       case PART_PRE:
    00108         tag = RPMTAG_PREIN;
    00109         tagflags = RPMSENSE_SCRIPT_PRE;
    00110         progtag = RPMTAG_PREINPROG;
    00111         partname = "%pre";
    00112         break;
    00113       case PART_POST:
    00114         tag = RPMTAG_POSTIN;
    00115         tagflags = RPMSENSE_SCRIPT_POST;
    00116         progtag = RPMTAG_POSTINPROG;
    00117         partname = "%post";
    00118         break;
    00119       case PART_PREUN:
    00120         tag = RPMTAG_PREUN;
    00121         tagflags = RPMSENSE_SCRIPT_PREUN;
    00122         progtag = RPMTAG_PREUNPROG;
    00123         partname = "%preun";
    00124         break;
    00125       case PART_POSTUN:
    00126         tag = RPMTAG_POSTUN;
    00127         tagflags = RPMSENSE_SCRIPT_POSTUN;
    00128         progtag = RPMTAG_POSTUNPROG;
    00129         partname = "%postun";
    00130         break;
    00131       case PART_VERIFYSCRIPT:
    00132         tag = RPMTAG_VERIFYSCRIPT;
    00133         tagflags = RPMSENSE_SCRIPT_VERIFY;
    00134         progtag = RPMTAG_VERIFYSCRIPTPROG;
    00135         partname = "%verifyscript";
    00136         break;
    00137       case PART_TRIGGERIN:
    00138         tag = RPMTAG_TRIGGERSCRIPTS;
    00139         tagflags = 0;
    00140         reqtag = RPMTAG_TRIGGERIN;
    00141         progtag = RPMTAG_TRIGGERSCRIPTPROG;
    00142         partname = "%triggerin";
    00143         break;
    00144       case PART_TRIGGERUN:
    00145         tag = RPMTAG_TRIGGERSCRIPTS;
    00146         tagflags = 0;
    00147         reqtag = RPMTAG_TRIGGERUN;
    00148         progtag = RPMTAG_TRIGGERSCRIPTPROG;
    00149         partname = "%triggerun";
    00150         break;
    00151       case PART_TRIGGERPOSTUN:
    00152         tag = RPMTAG_TRIGGERSCRIPTS;
    00153         tagflags = 0;
    00154         reqtag = RPMTAG_TRIGGERPOSTUN;
    00155         progtag = RPMTAG_TRIGGERSCRIPTPROG;
    00156         partname = "%triggerpostun";
    00157         break;
    00158     }
    00159     /*@=branchstate@*/
    00160
    00161     if (tag == RPMTAG_TRIGGERSCRIPTS) {
    00162         /* break line into two */
    00163         p = strstr(spec->line, "--");
    00164         if (!p) {
    00165             rpmError(RPMERR_BADSPEC, _("line %d: triggers must have --: %s\n"),
    00166                      spec->lineNum, spec->line);
    00167             return RPMERR_BADSPEC;
    00168         }
    00169
    00170         *p = '\0';
    00171         strcpy(reqargs, p + 2);
    00172     }
    00173
    00174     if ((rc = poptParseArgvString(spec->line, &argc, &argv))) {
    00175         rpmError(RPMERR_BADSPEC, _("line %d: Error parsing %s: %s\n"),
    00176                  spec->lineNum, partname, poptStrerror(rc));
    00177         return RPMERR_BADSPEC;
    00178     }
    00179
    00180     optCon = poptGetContext(NULL, argc, argv, optionsTable, 0);
    00181     while ((arg = poptGetNextOpt(optCon)) > 0) {
    00182         switch (arg) {
    00183         case 'p':
    00184             if (prog[0] != '/') {
    00185                 rpmError(RPMERR_BADSPEC,
    00186                          _("line %d: script program must begin "
    00187                          "with \'/\': %s\n"), spec->lineNum, prog);
    00188                 rc = RPMERR_BADSPEC;
    00189                 goto exit;
    00190             }
    00191             /*@switchbreak@*/ break;
    00192         case 'n':
    00193             flag = PART_NAME;
    00194             /*@switchbreak@*/ break;
    00195         }
    00196     }
    00197
    00198     if (arg < -1) {
    00199         rpmError(RPMERR_BADSPEC, _("line %d: Bad option %s: %s\n"),
    00200                  spec->lineNum,
    00201                  poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
    00202                  spec->line);
    00203         rc = RPMERR_BADSPEC;
    00204         goto exit;
    00205     }
    00206
    00207     if (poptPeekArg(optCon)) {
    00208         /*@-mods@*/
    00209         if (name == NULL)
    00210             name = poptGetArg(optCon);
    00211         /*@=mods@*/
    00212         if (poptPeekArg(optCon)) {
    00213             rpmError(RPMERR_BADSPEC, _("line %d: Too many names: %s\n"),
    00214                      spec->lineNum,
    00215                      spec->line);
    00216             rc = RPMERR_BADSPEC;
    00217             goto exit;
    00218         }
    00219     }
    00220
    00221     if (lookupPackage(spec, name, flag, &pkg)) {
    00222         rpmError(RPMERR_BADSPEC, _("line %d: Package does not exist: %s\n"),
    00223                  spec->lineNum, spec->line);
    00224         rc = RPMERR_BADSPEC;
    00225         goto exit;
    00226     }
    00227
    00228     if (tag != RPMTAG_TRIGGERSCRIPTS) {
    00229         if (headerIsEntry(pkg->header, progtag)) {
    00230             rpmError(RPMERR_BADSPEC, _("line %d: Second %s\n"),
    00231                      spec->lineNum, partname);
    00232             rc = RPMERR_BADSPEC;
    00233             goto exit;
    00234         }
    00235     }
    00236
    00237     if ((rc = poptParseArgvString(prog, &progArgc, &progArgv))) {
    00238         rpmError(RPMERR_BADSPEC, _("line %d: Error parsing %s: %s\n"),
    00239                  spec->lineNum, partname, poptStrerror(rc));
    00240         rc = RPMERR_BADSPEC;
    00241         goto exit;
    00242     }
    00243
    00244     sb = newStringBuf();
    00245     if ((rc = readLine(spec, STRIP_NOTHING)) > 0) {
    00246         nextPart = PART_NONE;
    00247     } else {
    00248         if (rc)
    00249             goto exit;
    00250         while (! (nextPart = isPart(spec->line))) {
    00251             appendStringBuf(sb, spec->line);
    00252             if ((rc = readLine(spec, STRIP_NOTHING)) > 0) {
    00253                 nextPart = PART_NONE;
    00254                 break;
    00255             }
    00256             if (rc)
    00257                 goto exit;
    00258         }
    00259     }
    00260     stripTrailingBlanksStringBuf(sb);
    00261     p = getStringBuf(sb);
    00262
    00263     (void) addReqProv(spec, pkg->header, (tagflags | RPMSENSE_INTERP), progArgv[0], NULL, 0);
    00264
    00265     /* Trigger script insertion is always delayed in order to */
    00266     /* get the index right.                                   */
    00267     if (tag == RPMTAG_TRIGGERSCRIPTS) {
    00268         /* Add file/index/prog triple to the trigger file list */
    00269         index = addTriggerIndex(pkg, file, p, progArgv[0]);
    00270
    00271         /* Generate the trigger tags */
    00272         if ((rc = parseRCPOT(spec, pkg, reqargs, reqtag, index, tagflags)))
    00273             goto exit;
    00274     } else {
    00275         if (progArgc == 1)
    00276             (void) headerAddEntry(pkg->header, progtag, RPM_STRING_TYPE,
    00277                         *progArgv, progArgc);
    00278         else {
    00279             (void) rpmlibNeedsFeature(pkg->header,
    00280                         "ScriptletInterpreterArgs", "4.0.3-1");
    00281             (void) headerAddEntry(pkg->header, progtag, RPM_STRING_ARRAY_TYPE,
    00282                         progArgv, progArgc);
    00283         }
    00284
    00285         if (*p != '\0')
    00286             (void) headerAddEntry(pkg->header, tag, RPM_STRING_TYPE, p, 1);
    00287
    00288         if (file) {
    00289             switch (parsePart) {
    00290               case PART_PRE:
    00291                 pkg->preInFile = xstrdup(file);
    00292                 break;
    00293               case PART_POST:
    00294                 pkg->postInFile = xstrdup(file);
    00295                 break;
    00296               case PART_PREUN:
    00297                 pkg->preUnFile = xstrdup(file);
    00298                 break;
    00299               case PART_POSTUN:
    00300                 pkg->postUnFile = xstrdup(file);
    00301                 break;
    00302               case PART_VERIFYSCRIPT:
    00303                 pkg->verifyFile = xstrdup(file);
    00304                 break;
    00305             }
    00306         }
    00307     }
    00308     rc = nextPart;
    00309
    00310 exit:
    00311     sb = freeStringBuf(sb);
    00312     progArgv = _free(progArgv);
    00313     argv = _free(argv);
    00314     optCon = poptFreeContext(optCon);
    00315
    00316     return rc;
    00317 }