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#include <string.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <err.h>
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#include "pkg.h"
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/*
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* split_version(pkgname, endname, epoch, revision) returns a pointer to
|
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* the version portion of a package name and the two special components.
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*
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* Syntax is: ${PORTNAME}-${PORTVERSION}[_${PORTREVISION}][,${PORTEPOCH}]
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*
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* Written by Oliver Eikemeier
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* Based on work of Jeremy D. Lea.
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*/
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static const char *
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split_version(const char *pkgname, const char **endname, unsigned long *epoch, unsigned long *revision)
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{
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char *ch;
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const char *versionstr;
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const char *endversionstr;
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if (pkgname == NULL)
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errx(2, "%s: Passed NULL pkgname.", __func__);
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/* Look for the last '-' the the pkgname */
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ch = strrchr(pkgname, '-');
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/* Cheat if we are just passed a version, not a valid package name */
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versionstr = ch ? ch + 1 : pkgname;
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/* Look for the last '_' in the version string, advancing the end pointer */
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ch = strrchr(versionstr, '_');
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if (revision != NULL)
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*revision = ch ? strtoul(ch + 1, NULL, 10) : 0;
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endversionstr = ch;
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/* Look for the last ',' in the remaining version string */
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ch = strrchr(endversionstr ? endversionstr + 1 : versionstr, ',');
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if (epoch != NULL)
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*epoch = ch ? strtoul(ch + 1, NULL, 10) : 0;
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if (ch && !endversionstr)
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endversionstr = ch;
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/* set the pointer behind the last character of the version without revision or epoch */
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if (endname)
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*endname = endversionstr ? endversionstr : strrchr(versionstr, '\0');
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return versionstr;
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}
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/*
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* PORTVERSIONs are composed of components separated by dots. A component
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* consists of a version number, a letter and a patchlevel number. This does
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* not conform to the porter's handbook, but let us formulate rules that
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* fit the current practice and are far simpler than to make decisions
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* based on the order of netters and lumbers. Besides, people use versions
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* like 10b2 in the ports...
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*/
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typedef struct {
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#ifdef __LONG_LONG_SUPPORTED
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long long n;
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long long pl;
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#else
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long n;
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long pl;
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#endif
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int a;
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} version_component;
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/*
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* get_component(position, component) gets the value of the next component
|
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* (number - letter - number triple) and returns a pointer to the next character
|
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* after any leading separators
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*
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* - components are separated by dots
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* - characters !~ [a-zA-Z0-9.+*] are treated as separators
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* (1.0:2003.09.16 = 1.0.2003.09.16), this may not be what you expect:
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* 1.0.1:2003.09.16 < 1.0:2003.09.16
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* - consecutive separators are collapsed (10..1 = 10.1)
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* - missing separators are inserted, essentially
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* letter number letter => letter number . letter (10a1b2 = 10a1.b2)
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* - missing components are assumed to be equal to 0 (10 = 10.0 = 10.0.0)
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* - the letter sort order is: [none], a, b, ..., z; numbers without letters
|
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* sort first (10 < 10a < 10b)
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* - missing version numbers (in components starting with a letter) sort as -1
|
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* (a < 0, 10.a < 10)
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* - a separator is inserted before the special strings "pl", "alpha", "beta",
|
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* "pre" and "rc".
|
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* - "pl" sorts before every other letter, "alpha", "beta", "pre" and "rc"
|
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* sort as a, b, p and r. (10alpha = 10.a < 10, but 10 < 10a; pl11 < alpha3
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* < 0.1beta2 = 0.1.b2 < 0.1)
|
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* - other strings use only the first letter for sorting, case is ignored
|
| + |
* (1.d2 = 1.dev2 = 1.Development2)
|
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* - The special component `*' is guaranteed to be the smallest possible
|
| + |
* component (2.* < 2pl1 < 2alpha3 < 2.9f7 < 3.*)
|
| + |
* - components separated by `+' are handled by version_cmp below
|
| + |
*
|
| + |
* Oliver Eikemeier
|
| + |
*/
|
| + |
|
| + |
static const struct {
|
| + |
const char *name;
|
| + |
size_t namelen;
|
| + |
int value;
|
| + |
} stage[] = {
|
| + |
{ "pl", 2, 0 },
|
| + |
{ "alpha", 5, 'a'-'a'+1 },
|
| + |
{ "beta", 4, 'b'-'a'+1 },
|
| + |
{ "pre", 3, 'p'-'a'+1 },
|
| + |
{ "rc", 2, 'r'-'a'+1 },
|
| + |
{ NULL, 0, -1 }
|
| + |
};
|
| + |
|
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static const char *
|
| + |
get_component(const char *position, version_component *component)
|
| + |
{
|
| + |
const char *pos = position;
|
| + |
int hasstage = 0, haspatchlevel = 0;
|
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|
| + |
if (!pos)
|
| + |
errx(2, "%s: Passed NULL position.", __func__);
|
| + |
|
| + |
/* handle version number */
|
| + |
if (isdigit(*pos)) {
|
| + |
char *endptr;
|
| + |
#ifdef __LONG_LONG_SUPPORTED
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component->n = strtoll(pos, &endptr, 10);
|
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#else
|
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component->n = strtol(pos, &endptr, 10);
|
| + |
#endif
|
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/* should we test for errno == ERANGE? */
|
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pos = endptr;
|
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} else if (*pos == '*') {
|
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component->n = -2;
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do {
|
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pos++;
|
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} while(*pos && *pos != '+');
|
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} else {
|
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component->n = -1;
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hasstage = 1;
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}
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/* handle letter */
|
| + |
if (isalpha(*pos)) {
|
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int c = tolower(*pos);
|
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haspatchlevel = 1;
|
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/* handle special suffixes */
|
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if (isalpha(pos[1])) {
|
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int i;
|
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for (i = 0; stage[i].name; i++) {
|
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if (strncasecmp(pos, stage[i].name, stage[i].namelen) == 0
|
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&& !isalpha(pos[stage[i].namelen])) {
|
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if (hasstage) {
|
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/* stage to value */
|
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component->a = stage[i].value;
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pos += stage[i].namelen;
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} else {
|
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/* insert dot */
|
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component->a = 0;
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haspatchlevel = 0;
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}
|
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c = 0;
|
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break;
|
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}
|
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}
|
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}
|
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/* unhandled above */
|
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if (c) {
|
| + |
/* use the first letter and skip following */
|
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component->a = c - 'a' + 1;
|
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do {
|
| + |
++pos;
|
| + |
} while (isalpha(*pos));
|
| + |
}
|
| + |
} else {
|
| + |
component->a = 0;
|
| + |
haspatchlevel = 0;
|
| + |
}
|
| + |
|
| + |
if (haspatchlevel) {
|
| + |
/* handle patch number */
|
| + |
if (isdigit(*pos)) {
|
| + |
char *endptr;
|
| + |
#ifdef __LONG_LONG_SUPPORTED
|
| + |
component->pl = strtoll(pos, &endptr, 10);
|
| + |
#else
|
| + |
component->pl = strtol(pos, &endptr, 10);
|
| + |
#endif
|
| + |
/* should we test for errno == ERANGE? */
|
| + |
pos = endptr;
|
| + |
} else {
|
| + |
component->pl = -1;
|
| + |
}
|
| + |
} else {
|
| + |
component->pl = 0;
|
| + |
}
|
| + |
|
| + |
/* skip trailing separators */
|
| + |
while (*pos && !isdigit(*pos) && !isalpha(*pos) && *pos != '+' && *pos != '*') {
|
| + |
pos++;
|
| + |
}
|
| + |
|
| + |
return pos;
|
| + |
}
|
| + |
|
| + |
/*
|
| + |
* version_cmp(pkg1, pkg2) returns -1, 0 or 1 depending on if the version
|
| + |
* components of pkg1 is less than, equal to or greater than pkg2. No
|
| + |
* comparison of the basenames is done.
|
| + |
*
|
| + |
* The port version is defined by:
|
| + |
* ${PORTVERSION}[_${PORTREVISION}][,${PORTEPOCH}]
|
| + |
* ${PORTEPOCH} supersedes ${PORTVERSION} supersedes ${PORTREVISION}.
|
| + |
* See the commit log for revision 1.349 of ports/Mk/bsd.port.mk
|
| + |
* for more information.
|
| + |
*
|
| + |
* The epoch and revision are defined to be a single number, while the rest
|
| + |
* of the version should conform to the porting guidelines. It can contain
|
| + |
* multiple components, separated by a period, including letters.
|
| + |
*
|
| + |
* The tests allow for significantly more latitude in the version numbers
|
| + |
* than is allowed in the guidelines. No point in enforcing them here.
|
| + |
* That's what portlint is for.
|
| + |
*
|
| + |
* Jeremy D. Lea.
|
| + |
* reimplemented by Oliver Eikemeier
|
| + |
*/
|
| + |
int
|
| + |
pkg_version_cmp(const char *pkg1, const char *pkg2)
|
| + |
{
|
| + |
const char *v1, *v2, *ve1, *ve2;
|
| + |
unsigned long e1, e2, r1, r2;
|
| + |
int result = 0;
|
| + |
|
| + |
v1 = split_version(pkg1, &ve1, &e1, &r1);
|
| + |
v2 = split_version(pkg2, &ve2, &e2, &r2);
|
| + |
|
| + |
/* Check epoch, port version, and port revision, in that order. */
|
| + |
if (e1 != e2) {
|
| + |
result = (e1 < e2 ? -1 : 1);
|
| + |
}
|
| + |
|
| + |
/* Shortcut check for equality before invoking the parsing routines. */
|
| + |
if (result == 0 && (ve1 - v1 != ve2 - v2 || strncasecmp(v1, v2, ve1 - v1) != 0)) {
|
| + |
/* Loop over different components (the parts separated by dots).
|
| + |
* If any component differs, we have the basis for an inequality. */
|
| + |
while(result == 0 && (v1 < ve1 || v2 < ve2)) {
|
| + |
int block_v1 = 0;
|
| + |
int block_v2 = 0;
|
| + |
version_component vc1 = {0, 0, 0};
|
| + |
version_component vc2 = {0, 0, 0};
|
| + |
if (v1 < ve1 && *v1 != '+') {
|
| + |
v1 = get_component(v1, &vc1);
|
| + |
} else {
|
| + |
block_v1 = 1;
|
| + |
}
|
| + |
if (v2 < ve2 && *v2 != '+') {
|
| + |
v2 = get_component(v2, &vc2);
|
| + |
} else {
|
| + |
block_v2 = 1;
|
| + |
}
|
| + |
if (block_v1 && block_v2) {
|
| + |
if (v1 < ve1)
|
| + |
v1++;
|
| + |
if (v2 < ve2)
|
| + |
v2++;
|
| + |
} else if (vc1.n != vc2.n) {
|
| + |
result = (vc1.n < vc2.n ? -1 : 1);
|
| + |
} else if (vc1.a != vc2.a) {
|
| + |
result = (vc1.a < vc2.a ? -1 : 1);
|
| + |
} else if (vc1.pl != vc2.pl) {
|
| + |
result = (vc1.pl < vc2.pl ? -1 : 1);
|
| + |
}
|
| + |
}
|
| + |
}
|
| + |
|
| + |
/* Compare FreeBSD revision numbers. */
|
| + |
if (result == 0 && r1 != r2) {
|
| + |
result = (r1 < r2 ? -1 : 1);
|
| + |
}
|
| + |
return result;
|
| + |
}
|