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rpm/build/parseScript.c

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/** \ingroup rpmbuild
* \file build/parseScript.c
* Parse install-time script section from spec file.
*/
#include "system.h"
#include "rpmbuild.h"
#include "debug.h"
/*@access StringBuf@*/ /* XXX compared with NULL */
/*@access poptContext @*/ /* compared with NULL */
/**
*/
static int addTriggerIndex(Package pkg, const char *file,
const char *script, const char *prog)
/*@modifies pkg->triggerFiles @*/
{
struct TriggerFileEntry *tfe;
struct TriggerFileEntry *list = pkg->triggerFiles;
struct TriggerFileEntry *last = NULL;
int index = 0;
while (list) {
last = list;
list = list->next;
}
if (last)
index = last->index + 1;
tfe = xcalloc(1, sizeof(*tfe));
tfe->fileName = (file) ? xstrdup(file) : NULL;
tfe->script = (script && *script != '\0') ? xstrdup(script) : NULL;
tfe->prog = xstrdup(prog);
tfe->index = index;
tfe->next = NULL;
if (last)
last->next = tfe;
else
pkg->triggerFiles = tfe;
return index;
}
/* these have to be global because of stupid compilers */
/*@unchecked@*/
/*@observer@*/ /*@null@*/ static const char *name = NULL;
/*@unchecked@*/
/*@observer@*/ /*@null@*/ static const char *prog = NULL;
/*@unchecked@*/
/*@observer@*/ /*@null@*/ static const char *file = NULL;
/*@unchecked@*/
static struct poptOption optionsTable[] = {
{ NULL, 'p', POPT_ARG_STRING, &prog, 'p', NULL, NULL},
{ NULL, 'n', POPT_ARG_STRING, &name, 'n', NULL, NULL},
{ NULL, 'f', POPT_ARG_STRING, &file, 'f', NULL, NULL},
{ 0, 0, 0, 0, 0, NULL, NULL}
};
/* %trigger is a strange combination of %pre and Requires: behavior */
/* We can handle it by parsing the args before "--" in parseScript. */
/* We then pass the remaining arguments to parseRCPOT, along with */
/* an index we just determined. */
int parseScript(Spec spec, int parsePart)
{
/* There are a few options to scripts: */
/* <pkg> */
/* -n <pkg> */
/* -p <sh> */
/* -p "<sh> <args>..." */
/* -f <file> */
char *p;
const char **progArgv = NULL;
int progArgc;
char *partname = NULL;
int reqtag = 0;
int tag = 0;
int tagflags = 0;
int progtag = 0;
int flag = PART_SUBNAME;
Package pkg;
StringBuf sb = NULL;
int nextPart;
int index;
char reqargs[BUFSIZ];
int rc, argc;
int arg;
const char **argv = NULL;
poptContext optCon = NULL;
reqargs[0] = '\0';
/*@-mods@*/
name = NULL;
prog = "/bin/sh";
file = NULL;
/*@=mods@*/
/*@-branchstate@*/
switch (parsePart) {
case PART_PRE:
tag = RPMTAG_PREIN;
tagflags = RPMSENSE_SCRIPT_PRE;
progtag = RPMTAG_PREINPROG;
partname = "%pre";
break;
case PART_POST:
tag = RPMTAG_POSTIN;
tagflags = RPMSENSE_SCRIPT_POST;
progtag = RPMTAG_POSTINPROG;
partname = "%post";
break;
case PART_PREUN:
tag = RPMTAG_PREUN;
tagflags = RPMSENSE_SCRIPT_PREUN;
progtag = RPMTAG_PREUNPROG;
partname = "%preun";
break;
case PART_POSTUN:
tag = RPMTAG_POSTUN;
tagflags = RPMSENSE_SCRIPT_POSTUN;
progtag = RPMTAG_POSTUNPROG;
partname = "%postun";
break;
case PART_VERIFYSCRIPT:
tag = RPMTAG_VERIFYSCRIPT;
tagflags = RPMSENSE_SCRIPT_VERIFY;
progtag = RPMTAG_VERIFYSCRIPTPROG;
partname = "%verifyscript";
break;
case PART_TRIGGERIN:
tag = RPMTAG_TRIGGERSCRIPTS;
tagflags = 0;
reqtag = RPMTAG_TRIGGERIN;
progtag = RPMTAG_TRIGGERSCRIPTPROG;
partname = "%triggerin";
break;
case PART_TRIGGERUN:
tag = RPMTAG_TRIGGERSCRIPTS;
tagflags = 0;
reqtag = RPMTAG_TRIGGERUN;
progtag = RPMTAG_TRIGGERSCRIPTPROG;
partname = "%triggerun";
break;
case PART_TRIGGERPOSTUN:
tag = RPMTAG_TRIGGERSCRIPTS;
tagflags = 0;
reqtag = RPMTAG_TRIGGERPOSTUN;
progtag = RPMTAG_TRIGGERSCRIPTPROG;
partname = "%triggerpostun";
break;
}
/*@=branchstate@*/
if (tag == RPMTAG_TRIGGERSCRIPTS) {
/* break line into two */
p = strstr(spec->line, "--");
if (!p) {
rpmError(RPMERR_BADSPEC, _("line %d: triggers must have --: %s\n"),
spec->lineNum, spec->line);
return RPMERR_BADSPEC;
}
*p = '\0';
strcpy(reqargs, p + 2);
}
if ((rc = poptParseArgvString(spec->line, &argc, &argv))) {
rpmError(RPMERR_BADSPEC, _("line %d: Error parsing %s: %s\n"),
spec->lineNum, partname, poptStrerror(rc));
return RPMERR_BADSPEC;
}
optCon = poptGetContext(NULL, argc, argv, optionsTable, 0);
while ((arg = poptGetNextOpt(optCon)) > 0) {
switch (arg) {
case 'p':
if (prog[0] != '/') {
rpmError(RPMERR_BADSPEC,
_("line %d: script program must begin "
"with \'/\': %s\n"), spec->lineNum, prog);
rc = RPMERR_BADSPEC;
goto exit;
}
/*@switchbreak@*/ break;
case 'n':
flag = PART_NAME;
/*@switchbreak@*/ break;
}
}
if (arg < -1) {
rpmError(RPMERR_BADSPEC, _("line %d: Bad option %s: %s\n"),
spec->lineNum,
poptBadOption(optCon, POPT_BADOPTION_NOALIAS),
spec->line);
rc = RPMERR_BADSPEC;
goto exit;
}
if (poptPeekArg(optCon)) {
/*@-mods@*/
if (name == NULL)
name = poptGetArg(optCon);
/*@=mods@*/
if (poptPeekArg(optCon)) {
rpmError(RPMERR_BADSPEC, _("line %d: Too many names: %s\n"),
spec->lineNum,
spec->line);
rc = RPMERR_BADSPEC;
goto exit;
}
}
if (lookupPackage(spec, name, flag, &pkg)) {
rpmError(RPMERR_BADSPEC, _("line %d: Package does not exist: %s\n"),
spec->lineNum, spec->line);
rc = RPMERR_BADSPEC;
goto exit;
}
if (tag != RPMTAG_TRIGGERSCRIPTS) {
if (headerIsEntry(pkg->header, progtag)) {
rpmError(RPMERR_BADSPEC, _("line %d: Second %s\n"),
spec->lineNum, partname);
rc = RPMERR_BADSPEC;
goto exit;
}
}
if ((rc = poptParseArgvString(prog, &progArgc, &progArgv))) {
rpmError(RPMERR_BADSPEC, _("line %d: Error parsing %s: %s\n"),
spec->lineNum, partname, poptStrerror(rc));
rc = RPMERR_BADSPEC;
goto exit;
}
sb = newStringBuf();
if ((rc = readLine(spec, STRIP_NOTHING)) > 0) {
nextPart = PART_NONE;
} else {
if (rc)
goto exit;
while (! (nextPart = isPart(spec->line))) {
appendStringBuf(sb, spec->line);
if ((rc = readLine(spec, STRIP_NOTHING)) > 0) {
nextPart = PART_NONE;
break;
}
if (rc)
goto exit;
}
}
stripTrailingBlanksStringBuf(sb);
p = getStringBuf(sb);
(void) addReqProv(spec, pkg->header, (tagflags | RPMSENSE_INTERP), progArgv[0], NULL, 0);
/* Trigger script insertion is always delayed in order to */
/* get the index right. */
if (tag == RPMTAG_TRIGGERSCRIPTS) {
/* Add file/index/prog triple to the trigger file list */
index = addTriggerIndex(pkg, file, p, progArgv[0]);
/* Generate the trigger tags */
if ((rc = parseRCPOT(spec, pkg, reqargs, reqtag, index, tagflags)))
goto exit;
} else {
if (progArgc == 1)
(void) headerAddEntry(pkg->header, progtag, RPM_STRING_TYPE,
*progArgv, progArgc);
else {
(void) rpmlibNeedsFeature(pkg->header,
"ScriptletInterpreterArgs", "4.0.3-1");
(void) headerAddEntry(pkg->header, progtag, RPM_STRING_ARRAY_TYPE,
progArgv, progArgc);
}
if (*p != '\0')
(void) headerAddEntry(pkg->header, tag, RPM_STRING_TYPE, p, 1);
if (file) {
switch (parsePart) {
case PART_PRE:
pkg->preInFile = xstrdup(file);
break;
case PART_POST:
pkg->postInFile = xstrdup(file);
break;
case PART_PREUN:
pkg->preUnFile = xstrdup(file);
break;
case PART_POSTUN:
pkg->postUnFile = xstrdup(file);
break;
case PART_VERIFYSCRIPT:
pkg->verifyFile = xstrdup(file);
break;
}
}
}
rc = nextPart;
exit:
sb = freeStringBuf(sb);
progArgv = _free(progArgv);
argv = _free(argv);
optCon = poptFreeContext(optCon);
return rc;
}
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