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3e2715c052
Now that we have implementations of SharedLibraryInfo for all platforms we don't need to build support for it conditionally. --HG-- extra : rebase_source : d40cf1b0b28fab3ef31ab4511fc1ddda98a37a38
66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
#define PATH_MAX_TOSTRING(x) #x
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#define PATH_MAX_STRING(x) PATH_MAX_TOSTRING(x)
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <limits.h>
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#include <unistd.h>
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#include "platform.h"
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#include "shared-libraries.h"
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#ifndef __GLIBC__
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/* a crapy version of getline, because it's not included in bionic */
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static ssize_t getline(char **lineptr, size_t *n, FILE *stream)
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{
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char *ret;
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if (!*lineptr) {
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*lineptr = (char*)malloc(4096);
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}
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ret = fgets(*lineptr, 4096, stream);
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if (!ret)
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return 0;
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return strlen(*lineptr);
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}
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#endif
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SharedLibraryInfo SharedLibraryInfo::GetInfoForSelf()
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{
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pid_t pid = getpid();
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SharedLibraryInfo info;
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char path[PATH_MAX];
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snprintf(path, PATH_MAX, "/proc/%d/maps", pid);
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FILE *maps = fopen(path, "r");
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char *line = NULL;
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int count = 0;
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size_t line_size = 0;
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while (maps && getline (&line, &line_size, maps) > 0) {
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int ret;
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//XXX: needs input sanitizing
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unsigned long start;
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unsigned long end;
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char perm[6] = "";
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unsigned long offset;
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char name[PATH_MAX] = "";
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ret = sscanf(line,
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"%lx-%lx %6s %lx %*s %*x %" PATH_MAX_STRING(PATH_MAX) "s\n",
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&start, &end, perm, &offset, name);
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if (!strchr(perm, 'x')) {
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// Ignore non executable entries
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continue;
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}
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if (ret != 5 && ret != 4) {
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LOG("Get maps line failed");
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continue;
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}
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SharedLibrary shlib(start, end, offset, name);
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info.AddSharedLibrary(shlib);
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if (count > 10000) {
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LOG("Get maps failed");
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break;
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}
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count++;
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}
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free(line);
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return info;
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}
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