[packages/rpm-specdump.git] / rpm-specdump.c

/*
 * Prints out following information in same format as %dump for builder:
 * $ rpmbuild --nodigest --nosignature --nobuild -bp --define 'prep %{echo:dummy: PACKAGE_NAME %{name} }%dump' qemu.spec 2>&1 | awk '$2 ~ /^SOURCEURL/ {print} $2 ~ /^PATCHURL/  {print} $2 ~ /^nosource/ {print} $2 ~ /^PACKAGE_/ {print}'
 * dummy: PACKAGE_NAME qemu ========================
 * -2: PACKAGE_RELEASE    60@2.6.16.59_2
 * -1: PACKAGE_VERSION    1.3.0pre11
 * -3: PATCHURL0  qemu-nostatic.patch
 * -3: PATCHURL1  qemu-cc.patch
 * -3: PATCHURL11 qemu-0.7.2-gcc4-opts.patch
 * -3: PATCHURL13 qemu-dosguest.patch
 * -3: PATCHURL3  qemu-dot.patch
 * -3: PATCHURL4  qemu-gcc4_x86.patch
 * -3: PATCHURL5  qemu-gcc4_ppc.patch
 * -3: PATCHURL6  qemu-nosdlgui.patch
 * -3: PATCHURL8  qemu-kde_virtual_workspaces_hack.patch
 * -3: PATCHURL9  qemu-0.8.0-gcc4-hacks.patch
 * -3: SOURCEURL0 http://fabrice.bellard.free.fr/qemu/qemu-0.9.0.tar.gz
 * -3: SOURCEURL1 http://fabrice.bellard.free.fr/qemu/kqemu-1.3.0pre11.tar.gz
 * -3: url http://rpm5.org/
 *
 *  $ rpm-specdump qemu.spec
 *  h PACKAGE_NAME qemu
 *  h PACKAGE_VERSION 0.9.0
 *  h PACKAGE_RELEASE 60k
 *  s PATCHURL13 qemu-dosguest.patch
 *  s PATCHURL11 qemu-0.7.2-gcc4-opts.patch
 *  s PATCHURL9 qemu-0.8.0-gcc4-hacks.patch
 *  s PATCHURL8 qemu-kde_virtual_workspaces_hack.patch
 *  s PATCHURL6 qemu-nosdlgui.patch
 *  s PATCHURL5 qemu-gcc4_ppc.patch
 *  s PATCHURL4 qemu-gcc4_x86.patch
 *  s PATCHURL3 qemu-dot.patch
 *  s PATCHURL1 qemu-cc.patch
 *  s PATCHURL0 qemu-nostatic.patch
 *  s SOURCEURL1 http://fabrice.bellard.free.fr/qemu/kqemu-1.3.0pre11.tar.gz
 *  s SOURCEURL0 http://fabrice.bellard.free.fr/qemu/qemu-0.9.0.tar.gz
 *
 * And with NoSource: 1, NoSource: 2
 *
 *  $ rpmbuild --nodigest --nosignature --nobuild -bp --define 'prep %{echo:dummy: PACKAGE_NAME %{name} }%dump' ZendDebugger.spec 2>&1 | awk '$2 ~ /^SOURCEURL/ {print} $2 ~ /^PATCHURL/  {print} $2 ~ /^nosource/ {print} $2 ~ /^PACKAGE_/ {print}'
 *  dummy: PACKAGE_NAME ZendDebugger ========================
 *   -2: PACKAGE_RELEASE    0.4
 *   -1: PACKAGE_VERSION    5.2.10
 *   -3: SOURCEURL0 http://downloads.zend.com/pdt/server-debugger/ZendDebugger-5.2.10-linux-glibc21-i386.tar.gz
 *   -3: SOURCEURL1 http://downloads.zend.com/pdt/server-debugger/ZendDebugger-5.2.10-linux-glibc23-x86_64.tar.gz
 *   -3: nosource   1
 *
 *  $ rpm-specdump ZendDebugger.spec
 *  h PACKAGE_NAME ZendDebugger
 *  h PACKAGE_VERSION 5.2.10
 *  h PACKAGE_RELEASE 0.4
 *  s SOURCEURL1 http://downloads.zend.com/pdt/server-debugger/ZendDebugger-5.2.10-linux-glibc23-x86_64.tar.gz
 *  s nosource 1
 *  s SOURCEURL0 http://downloads.zend.com/pdt/server-debugger/ZendDebugger-5.2.10-linux-glibc21-i386.tar.gz
 *  s nosource 0
 *
 * Compile with:
 * gcc -lrpm -I/usr/include/rpm -lrpmbuild rpm-specdump.c -o rpm-specdump
 *
 * Version 0.1, 2008-01-23
 * - initial version, based on getdeps.c
 */

#define _GNU_SOURCE

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#include <getopt.h>
#include <stdbool.h>
#include <string.h>
#include <assert.h>
#include <unistd.h>
#include <stdint.h>
#include <grp.h>
#include <sys/time.h>
#include <sys/types.h>

// macros from kernel
#define RPM_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))

#define RPM_VERSION_CODE RPM_VERSION(RPM_FORMAT_VERSION, RPM_MAJOR_VERSION, RPM_MINOR_VERSION)

#include <rpmio.h>
#include <rpmbuild.h>
#if RPM_VERSION_CODE < RPM_VERSION(5,4,0)
#include <rpmlib.h>
#endif
#if RPM_VERSION_CODE < RPM_VERSION(5,0,0)
#include <header.h>
#endif
#include <rpmts.h>

#define ARG_WITH	1024
#define ARG_WITHOUT	1025
#define ARG_DEFINE	1026
#define ARG_TARGET	1027
#define ARG_RCFILE	1028
#define ARG_CHROOT	1029
#define ARG_UID		1030
#define ARG_GID		1031

#if !defined(EXIT_FAILURE)
#	define EXIT_FAILURE 1
#endif

static struct option const
CMDLINE_OPTIONS[] = {
  { "help",     no_argument,  0, 'h' },
  { "version",  no_argument,  0, 'v' },
  { "with",     required_argument, 0, ARG_WITH    },
  { "without",  required_argument, 0, ARG_WITHOUT },
  { "define",   required_argument, 0, ARG_DEFINE  },
  { "target",   required_argument, 0, ARG_TARGET  },
  { "rcfile",   required_argument, 0, ARG_RCFILE  },
  { "chroot",   required_argument, 0, ARG_CHROOT  },
  { "uid",	required_argument, 0, ARG_UID },
  { "gid",	required_argument, 0, ARG_GID },
  { 0,0,0,0 }
};

struct Arguments
{
    char const *	target;
    char const *	rcfile;
    char const *	chroot;
    uid_t		uid;
    gid_t		gid;
    
    struct {
	char const **	values;
	size_t		cnt;
	size_t		reserved;
    }			macros;

    char const *	specfile;
};

struct DepSet {
    int32_t const *	flags;
    char const **	name;
    char const **	version;
    ssize_t		cnt;
};

inline static void 
writeStr(int fd, char const *cmd)
{
  (void)write(fd, cmd, strlen(cmd));
}

#define WRITE_MSG(FD,X)		(void)(write(FD,X,sizeof(X)-1))
#define WRITE_STR(FD,X)		writeStr(FD,X)

static void
showHelp(int fd, char const *cmd, int res)
{
  char		tmp[strlen(cmd)+1];
  strcpy(tmp, cmd);
  
  WRITE_MSG(fd, "Usage:  ");
  WRITE_STR(fd, basename(tmp));
  WRITE_MSG(fd,
	    " [--define '<macro> <value>']* [--with[out] <key>]* [--chroot <dir>]\n"
	    "                [--target <target>] [--rcfile <rcfile>] [--] <specfile>\n");
  exit(res);
}

static void
addDefine(struct Arguments *args, char const *val)
{
  register size_t	c = args->macros.cnt;
  if (args->macros.reserved <= c) {
    args->macros.reserved *= 2;
    args->macros.reserved += 1;
  
    args->macros.values = realloc(args->macros.values,
				  args->macros.reserved * sizeof(char const *));
    if (args->macros.values==0) {
      perror("realloc()");
      exit(1);
    }
  }

  args->macros.values[c] = strdup(val);
  ++args->macros.cnt;
}

static void
setWithMacro(struct Arguments *args,
	     char const *name, char const *prefix, size_t prefix_len)
{
  size_t	len = strlen(name);
  char		tmp[2*len + 2*prefix_len + sizeof("__ ---")];
  char *	ptr = tmp;

  // set '_<prefix>_<name>'
  *ptr++ = '_';
  memcpy(ptr, prefix, prefix_len); ptr += prefix_len;
  *ptr++ = '_';
  memcpy(ptr, name,   len);        ptr += len;
  *ptr++ = ' ';

  // append ' --<prefix>-<name>'
  *ptr++ = '-';
  *ptr++ = '-';
  memcpy(ptr, prefix, prefix_len); ptr += prefix_len;
  *ptr++ = '-';
  memcpy(ptr, name,   len);        ptr += len;
  *ptr   = '\0';

  addDefine(args, tmp);
}


static void
parseArgs(struct Arguments *args, int argc, char *argv[])
{
  while (1) {
    int		c = getopt_long(argc, argv, "", CMDLINE_OPTIONS, 0);
    if (c==-1) break;
    switch (c) {
      case 'h'		:  showHelp(1, argv[0], 0); break;
      case ARG_TARGET	:  args->target = optarg; break;
      case ARG_RCFILE	:  args->rcfile = optarg; break;
      case ARG_CHROOT	:  args->chroot = optarg; break;
      case ARG_UID	:  args->uid    = atoi(optarg); break;
      case ARG_GID	:  args->gid    = atoi(optarg); break;
      case ARG_DEFINE	:  addDefine(args, optarg); break;
      case ARG_WITH	:  setWithMacro(args, optarg, "with",    4); break;
      case ARG_WITHOUT	:  setWithMacro(args, optarg, "without", 7); break;
      default:
	WRITE_MSG(2, "Try '");
	WRITE_STR(2, argv[0]);
	WRITE_MSG(2, " --help\" for more information.\n");
	exit(1);
    }
  }

  if (optind+1!=argc) {
    write(2, "No/too much specfile(s) given; aborting\n", 40);
    exit(1);
  }

  if (args->gid==(gid_t)(-1))
    args->gid = args->uid;

  args->specfile = argv[optind];
}

static void
setMacros(char const * const *macros, size_t cnt)
{
  size_t	i;
  for (i=0; i<cnt; ++i)
    rpmDefineMacro(rpmGlobalMacroContext, macros[i], 0);
}

int main(int argc, char *argv[])
{
struct Arguments args = { 0,0,0,-1,-1, {0,0,0}, 0 };
#if RPM_VERSION_CODE < RPM_VERSION(5,0,0)
rpmSpec s;
#else
Spec s;
#endif

	addDefine(&args, "patch %{nil}");

	// instead of requiring rpm-build, we include some "builtin" macros
	addDefine(&args, "bcond_without() %{expand:%%{!?_without_%{1}:%%global with_%{1} 1}}");
	addDefine(&args, "bcond_with() %{expand:%%{?_with_%{1}:%%global with_%{1} 1}}");
	addDefine(&args, "with() %{expand:%%{?with_%{1}:1}%%{!?with_%{1}:0}}");
	addDefine(&args, "without() %{expand:%%{?with_%{1}:0}%%{!?with_%{1}:1}}");

	// include macros.perl, etc
	addDefine(&args, "include() %{nil}");

	parseArgs(&args, argc, argv);

	if ((args.chroot && chroot(args.chroot)==-1) ||
		(args.uid!=(uid_t)(-1) && (setgroups(0,0)  ==-1 || getgroups(0,0)!=0))  ||
		(args.gid!=(gid_t)(-1) && (setgid(args.gid)==-1 || getgid()!=args.gid)) ||
		(args.uid!=(uid_t)(-1) && (setuid(args.uid)==-1 || getuid()!=args.uid))) {

		perror("chroot/setuid/setgid()");
		return EXIT_FAILURE;
	}
  
	rpmReadConfigFiles(args.rcfile, args.target);
	setMacros(args.macros.values, args.macros.cnt);

	// here starts the code for builder
	const char *name = NULL, *version = NULL, *release = NULL, *summary = NULL, *url = NULL;

#if RPM_VERSION_CODE < RPM_VERSION(5,0,0)
#define GET_TAG(t) tag = t; rc = headerGet(h, tag, td, 0);
#define TAG_VALUE rpmtdGetString(td)
	s = rpmSpecParse(args.specfile, 0, NULL);
	Header h = rpmSpecSourceHeader(s);
	rpmtd td = rpmtdNew();
	rpmTagVal tag;
#else
#define GET_TAG(t) he->tag = (rpmTag)t; he = (HE_s*)memset(alloca(sizeof(*he)), 0, sizeof(*he)); rc = headerGet(h, he, 0);
#define TAG_VALUE (char *)he->p.ptr
	rpmts ts = rpmtsCreate();
	if (parseSpec(ts, args.specfile, NULL, 0, NULL, NULL, 1, 1, 0) != 0) {
		return EXIT_FAILURE;
	}

	s = rpmtsSpec(ts);

	Header h = s->sourceHeader;
	HE_t he;
#endif
	int rc;

	GET_TAG(RPMTAG_NAME);
	if (!rc) {
		fprintf(stderr, "Name (NVR) query failed\n");
		return EXIT_FAILURE;
	}
	name = TAG_VALUE;

	GET_TAG(RPMTAG_VERSION);
	if (!rc) {
		fprintf(stderr, "Version (NVR) query failed\n");
		return EXIT_FAILURE;
	}
	version = TAG_VALUE;

	GET_TAG(RPMTAG_RELEASE);
	if (!rc) {
		fprintf(stderr, "Release (NVR) query failed\n");
		return EXIT_FAILURE;
	}
	release = TAG_VALUE;

	GET_TAG(RPMTAG_SUMMARY);
	if (!rc) {
		fprintf(stderr, "Summary query failed\n");
		return EXIT_FAILURE;
	}
	summary = TAG_VALUE;

	GET_TAG(RPMTAG_URL);
	if (rc) {
		// URL field is not required
		url = TAG_VALUE;
	}

	printf("h PACKAGE_NAME %s\n", name);
	printf("h PACKAGE_VERSION %s\n", version);
	printf("h PACKAGE_RELEASE %s\n", release);

	printf("h PACKAGE_SUMMARY %s\n", summary);
	printf("h url %s\n", url);

#if RPM_VERSION_CODE < RPM_VERSION(5,0,0)
	rpmSpecSrcIter si = rpmSpecSrcIterInit(s);
	rpmSpecSrc ps;
	while ((ps = rpmSpecSrcIterNext(si)) != NULL) {
		const char *type = (rpmSpecSrcFlags(ps) & RPMBUILD_ISSOURCE) ? "SOURCE" : "PATCH";
		printf("s %sURL%d %s\n", type, rpmSpecSrcNum(ps), rpmSpecSrcFilename(ps, 1));
		if (rpmSpecSrcFlags(ps) & RPMBUILD_ISNO) {
			printf("s nosource %d\n", rpmSpecSrcNum(ps));
		}
	}
	rpmSpecSrcIterFree(si);
#else
	struct Source *ps = s->sources;
	while (ps) {
		const char *type = (ps->flags & RPMFILE_SOURCE) ? "SOURCE" : "PATCH";
		printf("s %sURL%d %s\n", type, ps->num, ps->fullSource);
		if (ps->flags & RPMFILE_GHOST) {
			printf("s nosource %d\n", ps->num);
		}
		ps = ps->next;
	}
#endif

	const char *arch = rpmExpand("%{_target_cpu}", NULL);
	printf("m _target_cpu %s\n", arch);

	return(0);
}
Commit	Line	Data
70252337	1	/*
70252337	2	* Prints out following information in same format as %dump for builder:
3e262c69 ER	3	* $ rpmbuild --nodigest --nosignature --nobuild -bp --define 'prep %{echo:dummy: PACKAGE_NAME %{name} }%dump' qemu.spec 2>&1 \| awk '$2 ~ /^SOURCEURL/ {print} $2 ~ /^PATCHURL/ {print} $2 ~ /^nosource/ {print} $2 ~ /^PACKAGE_/ {print}'
	4	* dummy: PACKAGE_NAME qemu ========================
	5	* -2: PACKAGE_RELEASE 60@2.6.16.59_2
	6	* -1: PACKAGE_VERSION 1.3.0pre11
	7	* -3: PATCHURL0 qemu-nostatic.patch
	8	* -3: PATCHURL1 qemu-cc.patch
	9	* -3: PATCHURL11 qemu-0.7.2-gcc4-opts.patch
	10	* -3: PATCHURL13 qemu-dosguest.patch
	11	* -3: PATCHURL3 qemu-dot.patch
	12	* -3: PATCHURL4 qemu-gcc4_x86.patch
	13	* -3: PATCHURL5 qemu-gcc4_ppc.patch
	14	* -3: PATCHURL6 qemu-nosdlgui.patch
	15	* -3: PATCHURL8 qemu-kde_virtual_workspaces_hack.patch
	16	* -3: PATCHURL9 qemu-0.8.0-gcc4-hacks.patch
	17	* -3: SOURCEURL0 http://fabrice.bellard.free.fr/qemu/qemu-0.9.0.tar.gz
	18	* -3: SOURCEURL1 http://fabrice.bellard.free.fr/qemu/kqemu-1.3.0pre11.tar.gz
846d963b	19	* -3: url http://rpm5.org/
70252337 ER	20	*
	21	* $ rpm-specdump qemu.spec
	22	* h PACKAGE_NAME qemu
	23	* h PACKAGE_VERSION 0.9.0
	24	* h PACKAGE_RELEASE 60k
afa4a282 ER	25	* s PATCHURL13 qemu-dosguest.patch
	26	* s PATCHURL11 qemu-0.7.2-gcc4-opts.patch
	27	* s PATCHURL9 qemu-0.8.0-gcc4-hacks.patch
	28	* s PATCHURL8 qemu-kde_virtual_workspaces_hack.patch
	29	* s PATCHURL6 qemu-nosdlgui.patch
	30	* s PATCHURL5 qemu-gcc4_ppc.patch
	31	* s PATCHURL4 qemu-gcc4_x86.patch
	32	* s PATCHURL3 qemu-dot.patch
	33	* s PATCHURL1 qemu-cc.patch
	34	* s PATCHURL0 qemu-nostatic.patch
70252337	35	* s SOURCEURL1 http://fabrice.bellard.free.fr/qemu/kqemu-1.3.0pre11.tar.gz
70252337 ER	36	* s SOURCEURL0 http://fabrice.bellard.free.fr/qemu/qemu-0.9.0.tar.gz
70252337 ER	37	*
c4820126 ER	38	* And with NoSource: 1, NoSource: 2
c4820126 ER	39	*
ebbdedf5 ER	40	* $ rpmbuild --nodigest --nosignature --nobuild -bp --define 'prep %{echo:dummy: PACKAGE_NAME %{name} }%dump' ZendDebugger.spec 2>&1 \| awk '$2 ~ /^SOURCEURL/ {print} $2 ~ /^PATCHURL/ {print} $2 ~ /^nosource/ {print} $2 ~ /^PACKAGE_/ {print}'
	41	* dummy: PACKAGE_NAME ZendDebugger ========================
	42	* -2: PACKAGE_RELEASE 0.4
	43	* -1: PACKAGE_VERSION 5.2.10
	44	* -3: SOURCEURL0 http://downloads.zend.com/pdt/server-debugger/ZendDebugger-5.2.10-linux-glibc21-i386.tar.gz
	45	* -3: SOURCEURL1 http://downloads.zend.com/pdt/server-debugger/ZendDebugger-5.2.10-linux-glibc23-x86_64.tar.gz
	46	* -3: nosource 1
	47	*
	48	* $ rpm-specdump ZendDebugger.spec
c4820126 ER	49	* h PACKAGE_NAME ZendDebugger
	50	* h PACKAGE_VERSION 5.2.10
	51	* h PACKAGE_RELEASE 0.4
c4820126 ER	52	* s SOURCEURL1 http://downloads.zend.com/pdt/server-debugger/ZendDebugger-5.2.10-linux-glibc23-x86_64.tar.gz
c4820126 ER	53	* s nosource 1
c4820126 ER	54	* s SOURCEURL0 http://downloads.zend.com/pdt/server-debugger/ZendDebugger-5.2.10-linux-glibc21-i386.tar.gz
	55	* s nosource 0
	56	*
3e262c69 ER	57	* Compile with:
	58	* gcc -lrpm -I/usr/include/rpm -lrpmbuild rpm-specdump.c -o rpm-specdump
	59	*
70252337 ER	60	* Version 0.1, 2008-01-23
	61	* - initial version, based on getdeps.c
	62	*/
	63
70252337 ER	64	#define _GNU_SOURCE
	65
	66	#ifdef HAVE_CONFIG_H
	67	# include <config.h>
	68	#endif
	69
	70	#include <getopt.h>
	71	#include <stdbool.h>
	72	#include <string.h>
	73	#include <assert.h>
	74	#include <unistd.h>
39a1b19c	75	#include <stdint.h>
70252337 ER	76	#include <grp.h>
	77	#include <sys/time.h>
	78	#include <sys/types.h>
	79
96ef6911 JR	80	// macros from kernel
	81	#define RPM_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
	82
74900489	83	#define RPM_VERSION_CODE RPM_VERSION(RPM_FORMAT_VERSION, RPM_MAJOR_VERSION, RPM_MINOR_VERSION)
96ef6911	84
010d09dd	85	#include <rpmio.h>
70252337	86	#include <rpmbuild.h>
96ef6911	87	#if RPM_VERSION_CODE < RPM_VERSION(5,4,0)
70252337	88	#include <rpmlib.h>
96ef6911	89	#endif
8e46eae6	90	#if RPM_VERSION_CODE < RPM_VERSION(5,0,0)
70252337	91	#include <header.h>
8e46eae6	92	#endif
70252337 ER	93	#include <rpmts.h>
	94
	95	#define ARG_WITH 1024
	96	#define ARG_WITHOUT 1025
	97	#define ARG_DEFINE 1026
	98	#define ARG_TARGET 1027
	99	#define ARG_RCFILE 1028
	100	#define ARG_CHROOT 1029
	101	#define ARG_UID 1030
	102	#define ARG_GID 1031
	103
96ef6911 JR	104	#if !defined(EXIT_FAILURE)
	105	# define EXIT_FAILURE 1
	106	#endif
	107
70252337 ER	108	static struct option const
	109	CMDLINE_OPTIONS[] = {
	110	{ "help", no_argument, 0, 'h' },
	111	{ "version", no_argument, 0, 'v' },
	112	{ "with", required_argument, 0, ARG_WITH },
	113	{ "without", required_argument, 0, ARG_WITHOUT },
	114	{ "define", required_argument, 0, ARG_DEFINE },
	115	{ "target", required_argument, 0, ARG_TARGET },
	116	{ "rcfile", required_argument, 0, ARG_RCFILE },
	117	{ "chroot", required_argument, 0, ARG_CHROOT },
	118	{ "uid", required_argument, 0, ARG_UID },
	119	{ "gid", required_argument, 0, ARG_GID },
	120	{ 0,0,0,0 }
	121	};
	122
	123	struct Arguments
	124	{
	125	char const * target;
	126	char const * rcfile;
	127	char const * chroot;
	128	uid_t uid;
	129	gid_t gid;
	130
	131	struct {
	132	char const ** values;
	133	size_t cnt;
	134	size_t reserved;
	135	} macros;
	136
	137	char const * specfile;
	138	};
	139
	140	struct DepSet {
	141	int32_t const * flags;
	142	char const ** name;
	143	char const ** version;
	144	ssize_t cnt;
	145	};
	146
	147	inline static void
	148	writeStr(int fd, char const *cmd)
	149	{
	150	(void)write(fd, cmd, strlen(cmd));
	151	}
	152
	153	#define WRITE_MSG(FD,X) (void)(write(FD,X,sizeof(X)-1))
	154	#define WRITE_STR(FD,X) writeStr(FD,X)
	155
	156	static void
	157	showHelp(int fd, char const *cmd, int res)
	158	{
	159	char tmp[strlen(cmd)+1];
	160	strcpy(tmp, cmd);
	161
	162	WRITE_MSG(fd, "Usage: ");
	163	WRITE_STR(fd, basename(tmp));
	164	WRITE_MSG(fd,
	165	" [--define '<macro> <value>']* [--with[out] <key>]* [--chroot <dir>]\n"
	166	" [--target <target>] [--rcfile <rcfile>] [--] <specfile>\n");
	167	exit(res);
	168	}
	169
	170	static void
	171	addDefine(struct Arguments args, char const val)
172	{
173	register size_t c = args->macros.cnt;
174	if (args->macros.reserved <= c) {
175	args->macros.reserved *= 2;
176	args->macros.reserved += 1;
177
178	args->macros.values = realloc(args->macros.values,
179	args->macros.reserved * sizeof(char const *));
180	if (args->macros.values==0) {
181	perror("realloc()");
182	exit(1);
183	}
184	}
185
186	args->macros.values[c] = strdup(val);
187	++args->macros.cnt;
188	}
189
190	static void
191	setWithMacro(struct Arguments *args,
192	char const name, char const prefix, size_t prefix_len)
193	{
194	size_t len = strlen(name);
195	char tmp[2len + 2prefix_len + sizeof("__ ---")];
196	char * ptr = tmp;
197
198	// set '_<prefix>_<name>'
199	*ptr++ = '_';
200	memcpy(ptr, prefix, prefix_len); ptr += prefix_len;
201	*ptr++ = '_';
202	memcpy(ptr, name, len); ptr += len;
203	*ptr++ = ' ';
204
205	// append ' --<prefix>-<name>'
206	*ptr++ = '-';
207	*ptr++ = '-';
208	memcpy(ptr, prefix, prefix_len); ptr += prefix_len;
209	*ptr++ = '-';
210	memcpy(ptr, name, len); ptr += len;
211	*ptr = '\0';
212
213	addDefine(args, tmp);
214	}
215
216
217	static void
218	parseArgs(struct Arguments args, int argc, char argv[])
219	{
220	while (1) {
221	int c = getopt_long(argc, argv, "", CMDLINE_OPTIONS, 0);
222	if (c==-1) break;
223	switch (c) {
74900489	224	case 'h' : showHelp(1, argv[0], 0); break;
70252337 ER	225	case ARG_TARGET : args->target = optarg; break;
	226	case ARG_RCFILE : args->rcfile = optarg; break;
	227	case ARG_CHROOT : args->chroot = optarg; break;
	228	case ARG_UID : args->uid = atoi(optarg); break;
	229	case ARG_GID : args->gid = atoi(optarg); break;
	230	case ARG_DEFINE : addDefine(args, optarg); break;
	231	case ARG_WITH : setWithMacro(args, optarg, "with", 4); break;
	232	case ARG_WITHOUT : setWithMacro(args, optarg, "without", 7); break;
	233	default:
	234	WRITE_MSG(2, "Try '");
	235	WRITE_STR(2, argv[0]);
	236	WRITE_MSG(2, " --help\" for more information.\n");
	237	exit(1);
	238	}
	239	}
	240
	241	if (optind+1!=argc) {
	242	write(2, "No/too much specfile(s) given; aborting\n", 40);
	243	exit(1);
	244	}
	245
	246	if (args->gid==(gid_t)(-1))
	247	args->gid = args->uid;
	248
	249	args->specfile = argv[optind];
	250	}
	251
	252	static void
	253	setMacros(char const * const *macros, size_t cnt)
	254	{
	255	size_t i;
	256	for (i=0; i<cnt; ++i)
	257	rpmDefineMacro(rpmGlobalMacroContext, macros[i], 0);
	258	}
	259
	260	int main(int argc, char *argv[])
	261	{
	262	struct Arguments args = { 0,0,0,-1,-1, {0,0,0}, 0 };
97634434 JR	263	#if RPM_VERSION_CODE < RPM_VERSION(5,0,0)
	264	rpmSpec s;
	265	#else
70252337	266	Spec s;
97634434	267	#endif
70252337	268
22c309c5	269	addDefine(&args, "patch %{nil}");
0cf659b5 ER	270
	271	// instead of requiring rpm-build, we include some "builtin" macros
	272	addDefine(&args, "bcond_without() %{expand:%%{!?_without_%{1}:%%global with_%{1} 1}}");
	273	addDefine(&args, "bcond_with() %{expand:%%{?_with_%{1}:%%global with_%{1} 1}}");
	274	addDefine(&args, "with() %{expand:%%{?with_%{1}:1}%%{!?with_%{1}:0}}");
	275	addDefine(&args, "without() %{expand:%%{?with_%{1}:0}%%{!?with_%{1}:1}}");
	276
	277	// include macros.perl, etc
	278	addDefine(&args, "include() %{nil}");
	279
70252337 ER	280	parseArgs(&args, argc, argv);
	281
	282	if ((args.chroot && chroot(args.chroot)==-1) \|\|
	283	(args.uid!=(uid_t)(-1) && (setgroups(0,0) ==-1 \|\| getgroups(0,0)!=0)) \|\|
	284	(args.gid!=(gid_t)(-1) && (setgid(args.gid)==-1 \|\| getgid()!=args.gid)) \|\|
	285	(args.uid!=(uid_t)(-1) && (setuid(args.uid)==-1 \|\| getuid()!=args.uid))) {
	286
	287	perror("chroot/setuid/setgid()");
	288	return EXIT_FAILURE;
	289	}
	290
	291	rpmReadConfigFiles(args.rcfile, args.target);
	292	setMacros(args.macros.values, args.macros.cnt);
	293
97634434 JR	294	// here starts the code for builder
	295	const char name = NULL, version = NULL, release = NULL, summary = NULL, *url = NULL;
	296
	297	#if RPM_VERSION_CODE < RPM_VERSION(5,0,0)
	298	#define GET_TAG(t) tag = t; rc = headerGet(h, tag, td, 0);
	299	#define TAG_VALUE rpmtdGetString(td)
	300	s = rpmSpecParse(args.specfile, 0, NULL);
	301	Header h = rpmSpecSourceHeader(s);
	302	rpmtd td = rpmtdNew();
	303	rpmTagVal tag;
	304	#else
	305	#define GET_TAG(t) he->tag = (rpmTag)t; he = (HE_s)memset(alloca(sizeof(he)), 0, sizeof(*he)); rc = headerGet(h, he, 0);
	306	#define TAG_VALUE (char *)he->p.ptr
70252337	307	rpmts ts = rpmtsCreate();
0d9e3461	308	if (parseSpec(ts, args.specfile, NULL, 0, NULL, NULL, 1, 1, 0) != 0) {
70252337 ER	309	return EXIT_FAILURE;
70252337 ER	310	}
3e262c69	311
97634434	312	s = rpmtsSpec(ts);
70252337	313
ca058888	314	Header h = s->sourceHeader;
97634434 JR	315	HE_t he;
	316	#endif
	317	int rc;
70252337	318
97634434 JR	319	GET_TAG(RPMTAG_NAME);
	320	if (!rc) {
	321	fprintf(stderr, "Name (NVR) query failed\n");
70252337 ER	322	return EXIT_FAILURE;
70252337 ER	323	}
97634434	324	name = TAG_VALUE;
70252337	325
97634434 JR	326	GET_TAG(RPMTAG_VERSION);
	327	if (!rc) {
	328	fprintf(stderr, "Version (NVR) query failed\n");
	329	return EXIT_FAILURE;
	330	}
	331	version = TAG_VALUE;
	332
	333	GET_TAG(RPMTAG_RELEASE);
	334	if (!rc) {
	335	fprintf(stderr, "Release (NVR) query failed\n");
	336	return EXIT_FAILURE;
	337	}
	338	release = TAG_VALUE;
	339
	340	GET_TAG(RPMTAG_SUMMARY);
	341	if (!rc) {
	342	fprintf(stderr, "Summary query failed\n");
	343	return EXIT_FAILURE;
	344	}
	345	summary = TAG_VALUE;
	346
	347	GET_TAG(RPMTAG_URL);
	348	if (rc) {
	349	// URL field is not required
	350	url = TAG_VALUE;
8e46eae6	351	}
8e46eae6	352
70252337 ER	353	printf("h PACKAGE_NAME %s\n", name);
	354	printf("h PACKAGE_VERSION %s\n", version);
	355	printf("h PACKAGE_RELEASE %s\n", release);
70252337	356
8551a535	357	printf("h PACKAGE_SUMMARY %s\n", summary);
846d963b	358	printf("h url %s\n", url);
8551a535	359
97634434 JR	360	#if RPM_VERSION_CODE < RPM_VERSION(5,0,0)
	361	rpmSpecSrcIter si = rpmSpecSrcIterInit(s);
	362	rpmSpecSrc ps;
	363	while ((ps = rpmSpecSrcIterNext(si)) != NULL) {
	364	const char *type = (rpmSpecSrcFlags(ps) & RPMBUILD_ISSOURCE) ? "SOURCE" : "PATCH";
	365	printf("s %sURL%d %s\n", type, rpmSpecSrcNum(ps), rpmSpecSrcFilename(ps, 1));
	366	if (rpmSpecSrcFlags(ps) & RPMBUILD_ISNO) {
	367	printf("s nosource %d\n", rpmSpecSrcNum(ps));
	368	}
	369	}
	370	rpmSpecSrcIterFree(si);
	371	#else
70252337 ER	372	struct Source *ps = s->sources;
	373	while (ps) {
	374	const char *type = (ps->flags & RPMFILE_SOURCE) ? "SOURCE" : "PATCH";
afa4a282	375	printf("s %sURL%d %s\n", type, ps->num, ps->fullSource);
70252337 ER	376	if (ps->flags & RPMFILE_GHOST) {
	377	printf("s nosource %d\n", ps->num);
	378	}
	379	ps = ps->next;
	380	}
97634434	381	#endif
70252337	382
3e31d4b4 ER	383	const char *arch = rpmExpand("%{_target_cpu}", NULL);
	384	printf("m _target_cpu %s\n", arch);
	385
70252337 ER	386	return(0);
70252337 ER	387	}