| subr_hints.c (83595) | subr_hints.c (94936) |
|---|---|
| 1/*- 2 * Copyright (c) 2000,2001 Peter Wemm <peter@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * | 1/*- 2 * Copyright (c) 2000,2001 Peter Wemm <peter@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * |
| 26 * $FreeBSD: head/sys/kern/subr_hints.c 83595 2001-09-17 21:27:41Z peter $ | 26 * $FreeBSD: head/sys/kern/subr_hints.c 94936 2002-04-17 13:06:36Z mux $ |
| 27 */ 28 29#include <sys/param.h> | 27 */ 28 29#include <sys/param.h> |
| 30#include <sys/lock.h> 31#include <sys/sx.h> |
|
| 30#include <sys/systm.h> 31#include <sys/bus.h> 32 33/* 34 * Access functions for device resources. 35 */ 36 | 32#include <sys/systm.h> 33#include <sys/bus.h> 34 35/* 36 * Access functions for device resources. 37 */ 38 |
| 39static int checkmethod = 1; |
|
| 37static char *hintp; 38 39/* 40 * Evil wildcarding resource string lookup. 41 * This walks the supplied env string table and returns a match. 42 * The start point can be remembered for incremental searches. 43 */ 44static int 45res_find(int *line, int *startln, 46 const char *name, int *unit, const char *resname, const char *value, 47 const char **ret_name, int *ret_namelen, int *ret_unit, 48 const char **ret_resname, int *ret_resnamelen, const char **ret_value) 49{ | 40static char *hintp; 41 42/* 43 * Evil wildcarding resource string lookup. 44 * This walks the supplied env string table and returns a match. 45 * The start point can be remembered for incremental searches. 46 */ 47static int 48res_find(int *line, int *startln, 49 const char *name, int *unit, const char *resname, const char *value, 50 const char **ret_name, int *ret_namelen, int *ret_unit, 51 const char **ret_resname, int *ret_resnamelen, const char **ret_value) 52{ |
| 50 int n = 0, hit; | 53 int n = 0, hit, use_kenv, i = 0; |
| 51 char r_name[32]; 52 int r_unit; 53 char r_resname[32]; 54 char r_value[128]; 55 const char *s, *cp; 56 char *p; 57 | 54 char r_name[32]; 55 int r_unit; 56 char r_resname[32]; 57 char r_value[128]; 58 const char *s, *cp; 59 char *p; 60 |
| 58 if (hintp == NULL) { | 61 use_kenv = 0; 62 if (checkmethod) { |
| 59 switch (hintmode) { 60 case 0: /* config supplied nothing */ | 63 switch (hintmode) { 64 case 0: /* config supplied nothing */ |
| 61 hintp = kern_envp; | |
| 62 break; 63 case 1: /* static hints only */ 64 hintp = static_hints; | 65 break; 66 case 1: /* static hints only */ 67 hintp = static_hints; |
| 68 checkmethod = 0; |
|
| 65 break; 66 case 2: /* fallback mode */ | 69 break; 70 case 2: /* fallback mode */ |
| 67 cp = kern_envp; 68 while (cp) { 69 if (strncmp(cp, "hint.", 5) == 0) { 70 cp = NULL; 71 hintp = kern_envp; 72 break; | 71 if (dynamic_kenv) { 72 sx_slock(&kenv_lock); 73 cp = kenvp[0]; 74 for (i = 0; cp != NULL; cp = kenvp[++i]) { 75 if (!strncmp(cp, "hint.", 5)) { 76 use_kenv = 1; 77 checkmethod = 0; 78 break; 79 } |
| 73 } | 80 } |
| 74 while (*cp != '\0') | 81 sx_sunlock(&kenv_lock); 82 } else { 83 cp = kern_envp; 84 while (cp) { 85 if (strncmp(cp, "hint.", 5) == 0) { 86 cp = NULL; 87 hintp = kern_envp; 88 break; 89 } 90 while (*cp != '\0') 91 cp++; |
| 75 cp++; | 92 cp++; |
| 76 cp++; 77 if (*cp == '\0') { 78 cp = NULL; 79 hintp = static_hints; 80 break; | 93 if (*cp == '\0') { 94 cp = NULL; 95 hintp = static_hints; 96 break; 97 } |
| 81 } 82 } 83 break; 84 default: 85 break; 86 } | 98 } 99 } 100 break; 101 default: 102 break; 103 } |
| 87 if (hintp == NULL) 88 hintp = kern_envp; | 104 if (hintp == NULL) { 105 if (dynamic_kenv) { 106 use_kenv = 1; 107 checkmethod = 0; 108 } else 109 hintp = kern_envp; 110 } |
| 89 } 90 | 111 } 112 |
| 91 cp = hintp; | 113 if (use_kenv) { 114 sx_slock(&kenv_lock); 115 i = 0; 116 cp = kenvp[0]; 117 if (cp == NULL) { 118 sx_sunlock(&kenv_lock); 119 return (ENOENT); 120 } 121 } else { 122 cp = hintp; 123 } |
| 92 while (cp) { 93 hit = 1; 94 (*line)++; 95 if (strncmp(cp, "hint.", 5) != 0) 96 hit = 0; 97 else 98 n = sscanf(cp, "hint.%32[^.].%d.%32[^=]=%128s", 99 r_name, &r_unit, r_resname, r_value); --- 11 unchanged lines hidden (view full) --- 111 if (hit && unit && *unit != r_unit) 112 hit = 0; 113 if (hit && resname && strcmp(resname, r_resname) != 0) 114 hit = 0; 115 if (hit && value && strcmp(value, r_value) != 0) 116 hit = 0; 117 if (hit) 118 break; | 124 while (cp) { 125 hit = 1; 126 (*line)++; 127 if (strncmp(cp, "hint.", 5) != 0) 128 hit = 0; 129 else 130 n = sscanf(cp, "hint.%32[^.].%d.%32[^=]=%128s", 131 r_name, &r_unit, r_resname, r_value); --- 11 unchanged lines hidden (view full) --- 143 if (hit && unit && *unit != r_unit) 144 hit = 0; 145 if (hit && resname && strcmp(resname, r_resname) != 0) 146 hit = 0; 147 if (hit && value && strcmp(value, r_value) != 0) 148 hit = 0; 149 if (hit) 150 break; |
| 151 if (use_kenv) 152 cp = kenvp[++i]; |
|
| 119 while (*cp != '\0') 120 cp++; 121 cp++; 122 if (*cp == '\0') { 123 cp = NULL; 124 break; 125 } 126 } | 153 while (*cp != '\0') 154 cp++; 155 cp++; 156 if (*cp == '\0') { 157 cp = NULL; 158 break; 159 } 160 } |
| 161 if (use_kenv) 162 sx_sunlock(&kenv_lock); |
|
| 127 if (cp == NULL) 128 return ENOENT; 129 130 s = cp; 131 /* This is a bit of a hack, but at least is reentrant */ 132 /* Note that it returns some !unterminated! strings. */ 133 s = index(s, '.') + 1; /* start of device */ 134 if (ret_name) --- 193 unchanged lines hidden --- | 163 if (cp == NULL) 164 return ENOENT; 165 166 s = cp; 167 /* This is a bit of a hack, but at least is reentrant */ 168 /* Note that it returns some !unterminated! strings. */ 169 s = index(s, '.') + 1; /* start of device */ 170 if (ret_name) --- 193 unchanged lines hidden --- |