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Rev | Author | Line No. | Line |
---|---|---|---|
23 | magnus | 1 | Author: Svante Signell <svante.signell@telia.com> |
2 | Author: Petter Reinholdtsen <pere@hungry.com> |
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3 | Author: Magnus Holmgren <magnus@debian.org> |
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4 | Bug-Debian: http://bugs.debian.org/657116 |
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5 | Description: Fix FTBFS on Hurd by dynamically allocating path names. |
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6 | Depends on no_static_buffers.patch, which introduced the th_pathname field. |
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7 | |||
8 | --- a/compat/basename.c |
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9 | +++ b/compat/basename.c |
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10 | @@ -34,13 +34,25 @@ static char rcsid[] = "$OpenBSD: basenam |
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11 | #include <errno.h> |
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12 | #include <string.h> |
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13 | #include <sys/param.h> |
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14 | +#include <stdlib.h> |
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15 | |||
16 | char * |
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17 | openbsd_basename(path) |
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18 | const char *path; |
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19 | { |
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20 | - static char bname[MAXPATHLEN]; |
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21 | + static char *bname = NULL; |
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22 | + static size_t allocated = 0; |
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23 | register const char *endp, *startp; |
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24 | + int len = 0; |
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25 | + |
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26 | + if (!allocated) { |
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27 | + allocated = 64; |
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28 | + bname = malloc(allocated); |
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29 | + if (!bname) { |
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30 | + allocated = 0; |
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31 | + return NULL; |
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32 | + } |
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33 | + } |
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34 | |||
35 | /* Empty or NULL string gets treated as "." */ |
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36 | if (path == NULL || *path == '\0') { |
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37 | @@ -64,11 +76,19 @@ openbsd_basename(path) |
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38 | while (startp > path && *(startp - 1) != '/') |
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39 | startp--; |
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40 | |||
41 | - if (endp - startp + 1 > sizeof(bname)) { |
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42 | - errno = ENAMETOOLONG; |
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43 | - return(NULL); |
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44 | + len = endp - startp + 1; |
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45 | + |
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46 | + if (len + 1 > allocated) { |
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47 | + size_t new_allocated = 2*(len+1); |
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48 | + void *new_bname = malloc(new_allocated); |
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49 | + if (!new_bname) |
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50 | + return NULL; |
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51 | + allocated = new_allocated; |
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52 | + free(bname); |
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53 | + bname = new_bname; |
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54 | } |
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55 | - (void)strncpy(bname, startp, endp - startp + 1); |
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56 | - bname[endp - startp + 1] = '\0'; |
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57 | + |
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58 | + (void)strncpy(bname, startp, len); |
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59 | + bname[len] = '\0'; |
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60 | return(bname); |
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61 | } |
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62 | --- a/compat/dirname.c |
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63 | +++ b/compat/dirname.c |
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64 | @@ -34,13 +34,25 @@ static char rcsid[] = "$OpenBSD: dirname |
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65 | #include <errno.h> |
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66 | #include <string.h> |
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67 | #include <sys/param.h> |
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68 | +#include <stdlib.h> |
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69 | |||
70 | char * |
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71 | openbsd_dirname(path) |
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72 | const char *path; |
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73 | { |
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74 | - static char bname[MAXPATHLEN]; |
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75 | + static char *bname = NULL; |
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76 | + static size_t allocated = 0; |
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77 | register const char *endp; |
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78 | + int len; |
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79 | + |
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80 | + if (!allocated) { |
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81 | + allocated = 64; |
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82 | + bname = malloc(allocated); |
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83 | + if (!bname) { |
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84 | + allocated = 0; |
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85 | + return NULL; |
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86 | + } |
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87 | + } |
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88 | |||
89 | /* Empty or NULL string gets treated as "." */ |
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90 | if (path == NULL || *path == '\0') { |
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91 | --- a/lib/append.c |
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92 | +++ b/lib/append.c |
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93 | @@ -38,7 +38,7 @@ typedef struct tar_dev tar_dev_t; |
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94 | struct tar_ino |
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95 | { |
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96 | ino_t ti_ino; |
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97 | - char ti_name[MAXPATHLEN]; |
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98 | + char ti_name[]; |
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99 | }; |
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100 | typedef struct tar_ino tar_ino_t; |
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101 | |||
102 | @@ -61,7 +61,7 @@ tar_append_file(TAR *t, const char *real |
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103 | libtar_hashptr_t hp; |
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104 | tar_dev_t *td = NULL; |
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105 | tar_ino_t *ti = NULL; |
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106 | - char path[MAXPATHLEN]; |
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107 | + char *path = NULL; |
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108 | |||
109 | #ifdef DEBUG |
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110 | printf("==> tar_append_file(TAR=0x%lx (\"%s\"), realname=\"%s\", " |
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111 | @@ -126,34 +126,39 @@ tar_append_file(TAR *t, const char *real |
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112 | } |
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113 | else |
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114 | { |
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115 | + const char *name; |
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116 | #ifdef DEBUG |
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117 | printf("+++ adding entry: device (0x%lx,0x%lx), inode %ld " |
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118 | "(\"%s\")...\n", major(s.st_dev), minor(s.st_dev), |
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119 | s.st_ino, realname); |
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120 | #endif |
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121 | - ti = (tar_ino_t *)calloc(1, sizeof(tar_ino_t)); |
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122 | + name = savename ? savename : realname; |
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123 | + ti = (tar_ino_t *)calloc(1, sizeof(tar_ino_t) + strlen(name) + 1); |
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124 | if (ti == NULL) |
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125 | return -1; |
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126 | ti->ti_ino = s.st_ino; |
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127 | - snprintf(ti->ti_name, sizeof(ti->ti_name), "%s", |
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128 | - savename ? savename : realname); |
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129 | + snprintf(ti->ti_name, strlen(name) + 1, "%s", name); |
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130 | libtar_hash_add(td->td_h, ti); |
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131 | } |
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132 | |||
133 | /* check if it's a symlink */ |
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134 | if (TH_ISSYM(t)) |
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135 | { |
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136 | - i = readlink(realname, path, sizeof(path)); |
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137 | + if ((path = malloc(s.st_size + 1)) == NULL) |
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138 | + return -1; |
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139 | + i = readlink(realname, path, s.st_size); |
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140 | if (i == -1) |
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141 | + { |
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142 | + free(path); |
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143 | return -1; |
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144 | - if (i >= MAXPATHLEN) |
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145 | - i = MAXPATHLEN - 1; |
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146 | + } |
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147 | path[i] = '\0'; |
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148 | #ifdef DEBUG |
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149 | printf(" tar_append_file(): encoding symlink \"%s\" -> " |
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150 | "\"%s\"...\n", realname, path); |
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151 | #endif |
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152 | th_set_link(t, path); |
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153 | + free(path); |
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154 | } |
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155 | |||
156 | /* print file info */ |
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157 | --- a/lib/decode.c |
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158 | +++ b/lib/decode.c |
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30 | magnus | 159 | @@ -32,7 +32,8 @@ th_get_pathname(TAR *t) |
23 | magnus | 160 | /* allocate the th_pathname buffer if not already */ |
161 | if (t->th_pathname == NULL) |
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162 | { |
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163 | - t->th_pathname = malloc(MAXPATHLEN * sizeof(char)); |
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30 | magnus | 164 | + /* Allocate the maximum length of prefix + '/' + name + '\0' */ |
165 | + t->th_pathname = malloc(155 + 1 + 100 + 1); |
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23 | magnus | 166 | if (t->th_pathname == NULL) |
167 | /* out of memory */ |
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168 | return NULL; |
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30 | magnus | 169 | @@ -40,11 +41,11 @@ th_get_pathname(TAR *t) |
23 | magnus | 170 | |
171 | if (t->th_buf.prefix[0] == '\0') |
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172 | { |
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173 | - snprintf(t->th_pathname, MAXPATHLEN, "%.100s", t->th_buf.name); |
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30 | magnus | 174 | + sprintf(t->th_pathname, "%.100s", t->th_buf.name); |
23 | magnus | 175 | } |
176 | else |
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177 | { |
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178 | - snprintf(t->th_pathname, MAXPATHLEN, "%.155s/%.100s", |
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30 | magnus | 179 | + sprintf(t->th_pathname, "%.155s/%.100s", |
23 | magnus | 180 | t->th_buf.prefix, t->th_buf.name); |
181 | } |
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182 | |||
183 | --- a/lib/util.c |
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184 | +++ b/lib/util.c |
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185 | @@ -15,6 +15,7 @@ |
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186 | #include <stdio.h> |
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187 | #include <sys/param.h> |
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188 | #include <errno.h> |
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189 | +#include <stdlib.h> |
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190 | |||
191 | #ifdef STDC_HEADERS |
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192 | # include <string.h> |
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193 | @@ -25,13 +26,15 @@ |
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194 | int |
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195 | path_hashfunc(char *key, int numbuckets) |
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196 | { |
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197 | - char buf[MAXPATHLEN]; |
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198 | + char *buf; |
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199 | char *p; |
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200 | + int i; |
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201 | |||
202 | - strcpy(buf, key); |
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203 | + buf = strdup(key); |
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204 | p = basename(buf); |
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205 | - |
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206 | - return (((unsigned int)p[0]) % numbuckets); |
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207 | + i = ((unsigned int)p[0]) % numbuckets; |
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208 | + free(buf); |
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209 | + return (i); |
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210 | } |
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211 | |||
212 | |||
213 | @@ -77,15 +80,26 @@ ino_hash(ino_t *inode) |
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214 | int |
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215 | mkdirhier(char *path) |
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216 | { |
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217 | - char src[MAXPATHLEN], dst[MAXPATHLEN] = ""; |
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218 | - char *dirp, *nextp = src; |
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219 | - int retval = 1; |
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220 | + char *src, *dst = NULL; |
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221 | + char *dirp, *nextp = NULL; |
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222 | + int retval = 1, len; |
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223 | + |
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224 | + len = strlen(path); |
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225 | + if ((src = strdup(path)) == NULL) |
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226 | + { |
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227 | + errno = ENOMEM; |
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228 | + return -1; |
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229 | + } |
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230 | + nextp = src; |
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231 | |||
232 | - if (strlcpy(src, path, sizeof(src)) > sizeof(src)) |
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233 | + /* Make room for // with absolute paths */ |
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234 | + if ((dst = malloc(len + 2)) == NULL) |
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235 | { |
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236 | - errno = ENAMETOOLONG; |
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237 | + free(src); |
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238 | + errno = ENOMEM; |
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239 | return -1; |
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240 | } |
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241 | + dst[0] = '\0'; |
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242 | |||
243 | if (path[0] == '/') |
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244 | strcpy(dst, "/"); |
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245 | @@ -102,12 +116,18 @@ mkdirhier(char *path) |
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246 | if (mkdir(dst, 0777) == -1) |
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247 | { |
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248 | if (errno != EEXIST) |
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249 | + { |
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250 | + free(src); |
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251 | + free(dst); |
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252 | return -1; |
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253 | + } |
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254 | } |
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255 | else |
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256 | retval = 0; |
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257 | } |
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258 | |||
259 | + free(src); |
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260 | + free(dst); |
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261 | return retval; |
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262 | } |
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263 | |||
264 | --- a/lib/wrapper.c |
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265 | +++ b/lib/wrapper.c |
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30 | magnus | 266 | @@ -16,6 +16,7 @@ |
23 | magnus | 267 | #include <sys/param.h> |
268 | #include <dirent.h> |
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269 | #include <errno.h> |
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270 | +#include <stdlib.h> |
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271 | |||
272 | #ifdef STDC_HEADERS |
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273 | # include <string.h> |
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30 | magnus | 274 | @@ -26,8 +27,8 @@ int |
23 | magnus | 275 | tar_extract_glob(TAR *t, char *globname, char *prefix) |
276 | { |
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277 | char *filename; |
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278 | - char buf[MAXPATHLEN]; |
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279 | - int i; |
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280 | + char *buf = NULL; |
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281 | + int i, len; |
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282 | |||
283 | while ((i = th_read(t)) == 0) |
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284 | { |
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30 | magnus | 285 | @@ -41,11 +42,25 @@ tar_extract_glob(TAR *t, char *globname, |
23 | magnus | 286 | if (t->options & TAR_VERBOSE) |
287 | th_print_long_ls(t); |
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288 | if (prefix != NULL) |
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289 | - snprintf(buf, sizeof(buf), "%s/%s", prefix, filename); |
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290 | + { |
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291 | + len = strlen(prefix) + 1 + strlen(filename); |
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292 | + if ((buf = malloc(len + 1)) == NULL) |
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293 | + return -1; |
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294 | + sprintf(buf, "%s/%s", prefix, filename); |
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295 | + } |
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296 | else |
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297 | - strlcpy(buf, filename, sizeof(buf)); |
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298 | + { |
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299 | + len = strlen(filename); |
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300 | + if ((buf = malloc(len + 1)) == NULL) |
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301 | + return -1; |
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302 | + strcpy(buf, filename); |
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303 | + } |
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304 | if (tar_extract_file(t, buf) != 0) |
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305 | + { |
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306 | + free(buf); |
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307 | return -1; |
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308 | + } |
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309 | + free(buf); |
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310 | } |
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311 | |||
312 | return (i == 1 ? 0 : -1); |
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30 | magnus | 313 | @@ -56,8 +71,9 @@ int |
23 | magnus | 314 | tar_extract_all(TAR *t, char *prefix) |
315 | { |
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316 | char *filename; |
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317 | - char buf[MAXPATHLEN]; |
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318 | - int i; |
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319 | + char *buf = NULL; |
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320 | + size_t bufsize = 0; |
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321 | + int i, len; |
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322 | |||
323 | #ifdef DEBUG |
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324 | printf("==> tar_extract_all(TAR *t, \"%s\")\n", |
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30 | magnus | 325 | @@ -73,15 +89,29 @@ tar_extract_all(TAR *t, char *prefix) |
23 | magnus | 326 | if (t->options & TAR_VERBOSE) |
327 | th_print_long_ls(t); |
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328 | if (prefix != NULL) |
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329 | - snprintf(buf, sizeof(buf), "%s/%s", prefix, filename); |
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330 | + { |
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331 | + len = strlen(prefix) + 1 + strlen(filename); |
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332 | + if ((buf = malloc(len + 1)) == NULL) |
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333 | + return -1; |
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334 | + sprintf(buf, "%s/%s", prefix, filename); |
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335 | + } |
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336 | else |
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337 | - strlcpy(buf, filename, sizeof(buf)); |
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338 | + { |
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339 | + len = strlen(filename); |
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340 | + if ((buf = malloc(len + 1)) == NULL) |
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341 | + return -1; |
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342 | + strcpy(buf, filename); |
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343 | + } |
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344 | #ifdef DEBUG |
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345 | printf(" tar_extract_all(): calling tar_extract_file(t, " |
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346 | "\"%s\")\n", buf); |
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347 | #endif |
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348 | if (tar_extract_file(t, buf) != 0) |
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349 | + { |
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350 | + free(buf); |
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351 | return -1; |
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352 | + } |
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353 | + free(buf); |
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354 | } |
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355 | |||
356 | return (i == 1 ? 0 : -1); |
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357 | @@ -91,11 +121,14 @@ tar_extract_all(TAR *t, char *prefix) |
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358 | int |
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359 | tar_append_tree(TAR *t, char *realdir, char *savedir) |
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360 | { |
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361 | - char realpath[MAXPATHLEN]; |
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362 | - char savepath[MAXPATHLEN]; |
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363 | + char *realpath = NULL; |
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364 | + size_t realpathsize = 0; |
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365 | + char *savepath = NULL; |
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366 | + size_t savepathsize = 0; |
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367 | struct dirent *dent; |
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368 | DIR *dp; |
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369 | struct stat s; |
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370 | + int len; |
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371 | |||
372 | #ifdef DEBUG |
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373 | printf("==> tar_append_tree(0x%lx, \"%s\", \"%s\")\n", |
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30 | magnus | 374 | @@ -122,11 +155,21 @@ tar_append_tree(TAR *t, char *realdir, c |
23 | magnus | 375 | strcmp(dent->d_name, "..") == 0) |
376 | continue; |
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377 | |||
378 | - snprintf(realpath, MAXPATHLEN, "%s/%s", realdir, |
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379 | + len = strlen(realdir) + 1 + strlen(dent->d_name); |
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380 | + if ((realpath = malloc(len + 1)) == NULL) |
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381 | + return -1; |
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382 | + snprintf(realpath, len + 1, "%s/%s", realdir, |
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383 | dent->d_name); |
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384 | if (savedir) |
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385 | - snprintf(savepath, MAXPATHLEN, "%s/%s", savedir, |
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386 | + { |
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387 | + len = strlen(savedir) + 1 + strlen(dent->d_name); |
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30 | magnus | 388 | + if ((savepath = malloc(len + 1)) == NULL) { |
389 | + free(realpath); |
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23 | magnus | 390 | + return -1; |
30 | magnus | 391 | + } |
392 | + snprintf(savepath, len + 1, "%s/%s", savedir, |
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23 | magnus | 393 | dent->d_name); |
394 | + } |
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395 | |||
396 | if (lstat(realpath, &s) != 0) |
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397 | return -1; |
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30 | magnus | 398 | @@ -135,13 +178,23 @@ tar_append_tree(TAR *t, char *realdir, c |
23 | magnus | 399 | { |
400 | if (tar_append_tree(t, realpath, |
||
401 | (savedir ? savepath : NULL)) != 0) |
||
402 | + { |
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403 | + free(realpath); |
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404 | + free(savepath); |
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405 | return -1; |
||
406 | + } |
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407 | continue; |
||
408 | } |
||
409 | |||
410 | if (tar_append_file(t, realpath, |
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411 | (savedir ? savepath : NULL)) != 0) |
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412 | + { |
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413 | + free(realpath); |
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414 | + free(savepath); |
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415 | return -1; |
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416 | + } |
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417 | + free(realpath); |
||
418 | + free(savepath); |
||
419 | } |
||
420 | |||
421 | closedir(dp); |
||
422 | --- a/libtar/libtar.c |
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423 | +++ b/libtar/libtar.c |
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424 | @@ -111,8 +111,9 @@ create(char *tarfile, char *rootdir, lib |
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425 | { |
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426 | TAR *t; |
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427 | char *pathname; |
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428 | - char buf[MAXPATHLEN]; |
||
429 | + char *buf = NULL; |
||
430 | libtar_listptr_t lp; |
||
431 | + int len; |
||
432 | |||
433 | if (tar_open(&t, tarfile, |
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434 | #ifdef HAVE_LIBZ |
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435 | @@ -133,17 +134,29 @@ create(char *tarfile, char *rootdir, lib |
||
436 | { |
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437 | pathname = (char *)libtar_listptr_data(&lp); |
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438 | if (pathname[0] != '/' && rootdir != NULL) |
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439 | - snprintf(buf, sizeof(buf), "%s/%s", rootdir, pathname); |
||
440 | + { |
||
441 | + len = strlen(rootdir) + 1 + strlen(pathname); |
||
442 | + if ((buf = malloc(len + 1)) == NULL) |
||
443 | + return -1; |
||
444 | + snprintf(buf, len + 1, "%s/%s", rootdir, pathname); |
||
445 | + } |
||
446 | else |
||
447 | - strlcpy(buf, pathname, sizeof(buf)); |
||
448 | + { |
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449 | + len = strlen(pathname); |
||
450 | + if ((buf = malloc(len + 1)) == NULL) |
||
451 | + return -1; |
||
452 | + strlcpy(buf, pathname, len + 1); |
||
453 | + } |
||
454 | if (tar_append_tree(t, buf, pathname) != 0) |
||
455 | { |
||
456 | fprintf(stderr, |
||
457 | "tar_append_tree(\"%s\", \"%s\"): %s\n", buf, |
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458 | pathname, strerror(errno)); |
||
459 | tar_close(t); |
||
460 | + free(buf); |
||
461 | return -1; |
||
462 | } |
||
463 | + free(buf); |
||
464 | } |
||
465 | |||
466 | if (tar_append_eof(t) != 0) |