diff options
author | Rob Landley <rob@landley.net> | 2012-02-18 15:12:41 -0600 |
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committer | Rob Landley <rob@landley.net> | 2012-02-18 15:12:41 -0600 |
commit | ff9ee8fc15e1a41bffe06bfcee30368e7c117601 (patch) | |
tree | 4806b88fe328eb96c4a9f7df41dd5c8859a56117 /lib/lib.c | |
parent | 3c1104ff57f22495a7711eabb4c0d3b5cda4a982 (diff) | |
download | toybox-ff9ee8fc15e1a41bffe06bfcee30368e7c117601.tar.gz |
Add killall by Andreas Heck, and factor out common pid code to lib.h.
Diffstat (limited to 'lib/lib.c')
-rw-r--r-- | lib/lib.c | 55 |
1 files changed, 55 insertions, 0 deletions
@@ -809,3 +809,58 @@ int yesno(int def) } return def; } + +// Execute a callback for each PID that matches a process name from a list. +int for_each_pid_with_name_in(char **names, + void (*callback) (const char *pid)) { +#define PATH_LEN 64 + + DIR *dp; + struct dirent *entry; + FILE *fp; + int n, pathpos; + char cmd[PATH_MAX]; + char path[PATH_LEN]; + char **curname; + + dp = opendir("/proc"); + if (!dp) { + perror("opendir"); + return 1; + } + + while ((entry = readdir(dp))) { + if (!isdigit(entry->d_name[0])) continue; + strcpy(path, "/proc/"); + pathpos = 6; + + if (pathpos + strlen(entry->d_name) + 1 > PATH_LEN) continue; + + strcpy(&path[pathpos], entry->d_name); + pathpos += strlen(entry->d_name); + + if (pathpos + strlen("/cmdline") + 1 > PATH_LEN) continue; + strcpy(&path[pathpos], "/cmdline"); + + fp = fopen(path, "r"); + if (!fp) { + perror("fopen"); + continue; + } + + n = fread(cmd, 1, PATH_MAX, fp); + fclose(fp); + if (n == 0) continue; + + for (curname = names; *curname; curname++) { + if (strcmp(basename(cmd), *curname) == 0) { + callback(entry->d_name); + } + } + } + + closedir(dp); + + return 0; +#undef PATH_LEN +} |